:root {
  /* Accent — single interactive color */
  --accent: #0ea5e9;
  --accent-hover: #38bdf8;
  --accent-light: rgba(14, 165, 233, 0.10);
  --accent-soft: rgba(14, 165, 233, 0.05);

  /* Backgrounds — stealth editorial dark canvas */
  --page-bg: #0a0a0b;
  --bg: #111113;
  --surface: #1c1c1f;
  --surface-hover: #252528;

  /* Borders */
  --border: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.14);
  --border-hero: 1.5px solid var(--border);

  /* Text */
  --text-primary: #e8e8e6;
  --text-secondary: #a0a09e;
  --text-muted: #636360;

  /* Semantic states — dark-adapted */
  --warning-bg: rgba(194, 65, 12, 0.10);
  --warning-border: rgba(251, 146, 60, 0.20);
  --warning-text: #fb923c;
  --info-bg: rgba(14, 165, 233, 0.10);
  --info-border: rgba(56, 189, 248, 0.20);
  --info-text: #7dd3fc;
  --success-bg: rgba(21, 128, 61, 0.10);
  --success-border: rgba(74, 222, 128, 0.20);
  --success-text: #4ade80;

  /* Shadows */
  --shadow-xs: 0 0 0 1px rgba(255, 255, 255, 0.04);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.40), 0 0 0 1px rgba(255, 255, 255, 0.04);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.50), 0 0 0 1px rgba(255, 255, 255, 0.08);
  --shadow-focus: 0 0 0 3px rgba(14, 165, 233, 0.28);

  /* Radii — tighter */
  --radius: 6px;
  --radius-sm: 4px;
  --radius-xs: 3px;
  --radius-full: 9999px;

  /* Transitions */
  --ease: 150ms ease-out;
  --ease-md: 200ms ease-out;
  --ease-lg: 280ms ease-out;
  --ease-reveal: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--page-bg);
  color: var(--text-primary);
  scroll-behavior: smooth;
  font-size: 15px;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.card-vial-strength,
.recon-stat-value,
.dose-cell,
.pep-vial-badge,
.pep-vial-badge-hero,
.snapshot-value {
  font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
}

.pep-section p,
.accordion-body-content p,
.section-summary,
.dosing-text,
.recon-summary,
.pep-subtitle {
  max-width: 68ch;
}

body { min-height: 100vh; }

a { text-decoration: none; color: inherit; }

/* ── FOCUS MANAGEMENT ── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Elements with their own focus treatment */
.search-input:focus-visible { outline: none; }

.card:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}

.pill:focus-visible,
.pill.active:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.dropdown-item:focus-visible {
  outline: none;
  background: var(--surface);
  color: var(--text-primary);
}

.toc-link:focus-visible {
  outline: none;
  background: var(--surface);
  color: var(--text-primary);
}

.jump-refs-btn:focus-visible,
.pep-other-vial-link:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* ── HEADER ── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.90);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  height: 56px;
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.logo span { color: var(--accent); }

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav a, .nav-link {
  font-size: 14px;
  line-height: 1;
  color: rgba(255, 255, 255, 0.82);
  transition: color var(--ease);
}

.nav a:hover, .nav-link:hover { color: #ffffff; }

/* ── NAV DROPDOWNS ── */
.nav-dropdown {
  position: relative;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 400;
  line-height: 1;
  color: rgba(255, 255, 255, 0.82);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color var(--ease);
}

.nav-btn:hover { color: #ffffff; }
.nav-dropdown.open .nav-btn { color: #ffffff; }

.nav-chevron {
  width: 12px;
  height: 12px;
  transition: transform var(--ease-md);
  flex-shrink: 0;
}

.nav-dropdown.open .nav-chevron { transform: rotate(180deg); }

.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 220px;
  background: var(--bg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  padding: 6px;
  z-index: 200;
}

.nav-dropdown.open .dropdown-menu { display: block; }

.dropdown-header {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.80);
  padding: 6px 10px 4px;
}

.dropdown-item {
  display: block;
  padding: 8px 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius-sm);
  transition: background var(--ease), color var(--ease);
}

.dropdown-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 4px;
}

.dropdown-scroll {
  max-height: 260px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.dropdown-scroll::-webkit-scrollbar { width: 4px; }
.dropdown-scroll::-webkit-scrollbar-track { background: transparent; }
.dropdown-scroll::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 4px; }

.peptides-menu {
  min-width: 560px;
  padding: 0;
  overflow: hidden;
}

/* ── HERO ── */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 480px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 48px 56px;
  background: var(--page-bg);
  border-bottom: 1px solid var(--border);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  /* strong bottom veil covers text zone; top 40% stays near-clear so the video reads */
  background:
    linear-gradient(to top, rgba(10, 10, 11, 0.94) 0%, rgba(10, 10, 11, 0.62) 30%, transparent 62%),
    radial-gradient(ellipse 70% 50% at 50% 5%, rgba(14, 165, 233, 0.13) 0%, transparent 70%),
    rgba(10, 10, 11, 0.18);
  z-index: 1;
  pointer-events: none;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  z-index: 0;
  pointer-events: none;
  filter: contrast(1.10) brightness(0.88);
  transform: translateZ(0);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  .hero-video { display: none; }
}

.hero .hero-eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1;
}

.hero h1 {
  font-size: clamp(26px, 2.5vw, 36px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.22;
  color: var(--text-primary);
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.35);
}

.hero p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 46ch;
}

.search-wrap {
  position: relative;
  margin-top: 20px;
  z-index: 10;
}

/* ── HERO CENTERED VARIATION ── */
.hero--centered {
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100svh;
  text-align: center;
  padding-bottom: 48px;
  border-bottom: none;
}

.hero--centered::before {
  /* bottom-heavy: DNA helix breathes at top, text zone is protected */
  background:
    linear-gradient(to top, rgba(10, 10, 11, 0.96) 0%, rgba(10, 10, 11, 0.72) 35%, rgba(10, 10, 11, 0.28) 62%, rgba(10, 10, 11, 0.06) 100%),
    rgba(10, 10, 11, 0.14);
}

.hero--centered .hero-inner {
  margin: 0 auto;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero--centered .hero-eyebrow {
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.18em;
  margin-bottom: 20px;
}

.hero--centered h1 {
  font-size: clamp(44px, 5.5vw, 72px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: #ffffff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.60);
}

.hero--centered .hero-inner > p:not(.hero-eyebrow) {
  margin-left: auto;
  margin-right: auto;
  margin-top: 16px;
  max-width: 42ch;
  font-size: 22px;
  font-weight: 500;
  color: #ffffff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.80);
}

.hero--centered .search-wrap {
  max-width: 600px;
  width: 100%;
  margin-top: 36px;
}

.hero-accent { color: var(--accent-hover); }

.hero-scroll-indicator {
  position: relative;
  margin-top: 28px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.90);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: color 200ms ease-out, opacity 150ms ease-out;
  opacity: 1;
}

.hero-scroll-indicator.is-hidden {
  animation: none;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.hero-scroll-indicator.is-hidden svg {
  animation: none;
}

.hero-scroll-indicator:hover { color: rgba(255, 255, 255, 0.92); }

.hero-scroll-indicator span {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-scroll-indicator svg {
  width: 16px;
  height: 16px;
  animation: scroll-float 2.4s ease-in-out infinite;
}

@keyframes scroll-float {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50%       { transform: translateY(4px); opacity: 0.55; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scroll-indicator svg { animation: none; }
}

@media (max-width: 600px) {
  .hero--centered {
    min-height: 100vh;
    min-height: 100svh;
    padding-bottom: 56px;
  }
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: rgba(255, 255, 255, 0.72);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 13px 16px 13px 44px;
  font-size: 15px;
  font-family: inherit;
  color: #ffffff;
  background: rgba(10, 10, 12, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  box-shadow: none;
  outline: none;
  transition: border-color var(--ease-md), box-shadow var(--ease-md);
}

.search-input::placeholder { color: rgba(255, 255, 255, 0.85); }

.search-input:hover:not(:focus) { border-color: rgba(255, 255, 255, 0.24); }

.search-input:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-focus), 0 0 16px rgba(14, 165, 233, 0.10);
}

/* ── SEARCH DROPDOWN ── */
.search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border-hover);
  border-radius: 12px;
  overflow-x: hidden;
  overflow-y: auto;
  max-height: 320px;
  z-index: 50;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.3);
  text-align: left;
  animation: dropdown-appear 140ms ease-out both;
  scrollbar-width: thin;
  scrollbar-color: var(--border-hover) transparent;
}

.search-dropdown::-webkit-scrollbar {
  width: 4px;
}
.search-dropdown::-webkit-scrollbar-track {
  background: transparent;
}
.search-dropdown::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 2px;
}

@keyframes dropdown-appear {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.search-dropdown[hidden] { display: none; }

.search-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  transition: background 100ms ease-out;
}

.search-dropdown-item:last-of-type { border-bottom: none; }

.search-dropdown-item:hover,
.search-dropdown-item:focus-visible {
  background: var(--surface-hover);
  outline: none;
}

.search-dropdown-name {
  font-weight: 500;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-dropdown-badge {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.50);
  flex-shrink: 0;
}

.search-dropdown-more {
  display: block;
  padding: 10px 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  text-align: center;
  cursor: pointer;
  user-select: none;
  border-top: 1px solid var(--border);
  transition: background 100ms ease-out;
}

.search-dropdown-more:hover {
  background: var(--surface-hover);
}

.search-dropdown-empty {
  padding: 14px 16px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
.search-dropdown-empty em {
  font-style: normal;
  color: var(--text-secondary);
}

@media (prefers-reduced-motion: reduce) {
  .search-dropdown { animation: none; }
}

/* ── FILTERS ── */
.filters {
  padding: 20px 24px 32px;
  scroll-margin-top: 72px;
}

.filters-inner {
  max-width: 1152px;
  margin: 0 auto;
}

.filter-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.filter-pills::-webkit-scrollbar { display: none; }

.pill {
  flex-shrink: 0;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease);
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.76);
}

.pill:hover {
  background: var(--surface);
  border-color: rgba(255, 255, 255, 0.28);
  color: #ffffff;
}

.pill.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(14, 165, 233, 0.40), 0 0 14px rgba(14, 165, 233, 0.12);
}

/* ── SITE STATS ── */
.site-stats {
  padding: 0 24px 56px;
}

.site-stats-inner {
  max-width: 1152px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.site-stats-item {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.01em;
}

.site-stats-num {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 500;
}

.site-stats-divider {
  color: var(--border);
  user-select: none;
}

.site-stats-note {
  color: rgba(255, 255, 255, 0.50);
  font-size: 12px;
}

/* ── SECTION HEADER ── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.section-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: rgba(255, 255, 255, 0.85);
}

.result-count {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}

/* ── FEATURED ── */
.featured {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 24px 52px;
}

/* ── PEPTIDE LIST (replaces featured-scroll) ── */
.peptide-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.peptide-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 520ms var(--ease-reveal), transform 520ms var(--ease-reveal),
              background var(--ease), border-color var(--ease);
}

.peptide-list-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .peptide-list-item,
  .will-reveal {
    opacity: 1;
    transform: none;
    transition: background var(--ease), border-color var(--ease);
  }
}

.peptide-list-item:nth-child(odd) {
  border-right: 1px solid var(--border);
}

.peptide-list-item:last-child,
.peptide-list-item:nth-last-child(2):nth-child(odd) {
  border-bottom: none;
}

.peptide-list-item:hover {
  background: var(--surface);
  border-color: rgba(14, 165, 233, 0.18);
}

.peptide-list-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
}


.peptide-list-arrow {
  width: 12px;
  height: 12px;
  color: rgba(255, 255, 255, 0.45);
  flex-shrink: 0;
  transition: color var(--ease), transform var(--ease);
}

.peptide-list-item:hover .peptide-list-arrow {
  color: var(--accent);
  transform: translateX(2px);
}

/* ── ITEM LIST (stacks + blends) ── */
.item-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.item-list-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: background var(--ease);
}

.item-list-row:last-child { border-bottom: none; }

.item-list-row:hover { background: var(--surface); }

.item-list-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
}

.item-list-meta {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
  white-space: nowrap;
  flex-shrink: 0;
}

.item-list-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  flex-shrink: 0;
}

.item-list-arrow {
  width: 12px;
  height: 12px;
  color: rgba(255, 255, 255, 0.45);
  flex-shrink: 0;
  transition: color var(--ease), transform var(--ease);
}

.item-list-row:hover .item-list-arrow {
  color: var(--accent);
  transform: translateX(2px);
}

/* ── RECENTLY VIEWED IN SEARCH DROPDOWN ── */
.rv-clock-icon {
  color: var(--text-muted);
  flex-shrink: 0;
  opacity: 0.6;
}

/* ── CARD (shared by results grid) ── */
.card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  transition: border-color var(--ease-md), box-shadow var(--ease-md), transform 220ms var(--ease-reveal);
  cursor: pointer;
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.card-arrow {
  width: 14px;
  height: 14px;
  color: var(--border-hover);
  flex-shrink: 0;
  margin-top: 2px;
  transition: color var(--ease);
}

.card:hover .card-arrow { color: var(--accent); }

.card-desc {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-tag {
  display: inline-block;
  margin-top: 14px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* category tag colors */
.tag-fat-loss       { background: rgba(194, 65, 12, 0.12); color: #fb923c; }
.tag-healing        { background: rgba(21, 128, 61, 0.12); color: #4ade80; }
.tag-muscle-growth  { background: rgba(29, 78, 216, 0.12); color: #93c5fd; }
.tag-cognitive      { background: rgba(126, 34, 206, 0.12); color: #c084fc; }
.tag-anti-aging     { background: rgba(14, 116, 144, 0.12); color: #67e8f9; }
.tag-sleep          { background: rgba(67, 56, 202, 0.12); color: #a5b4fc; }
.tag-hormonal       { background: rgba(157, 23, 77, 0.12); color: #f9a8d4; }
.tag-research       { background: var(--surface); color: var(--text-muted); }

/* ── STACKS ── */
.stacks {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 24px 52px;
}

/* ── RESULTS ── */
.results-section {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.results-inner { width: 100%; }

.results-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 28px;
}

.subsection-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.peptide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.empty-state {
  padding: 56px 0;
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
}

/* ── BLENDS ── */
.blends {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 24px 52px;
}


/* ── VIAL STRENGTH ON LISTING CARDS ── */
.card-vial-strength {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 2px 9px;
  margin-top: 7px;
  line-height: 1.5;
}

/* ── STACK CARD EXTRAS ── */
.card-tag-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
}

.card-tag-row .card-tag { margin-top: 0; }

.tag-stack {
  background: var(--surface);
  color: var(--text-secondary);
}

.tag-blend {
  background: var(--warning-bg);
  color: var(--warning-text);
}

/* ── FOOTER ── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 56px 24px 0;
}

.footer-inner {
  max-width: 1152px;
  margin: 0 auto;
  display: flex;
  gap: 48px;
  align-items: flex-start;
  padding-bottom: 56px;
}

.footer-brand {
  flex: 0 0 180px;
}

.footer-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.footer-logo span { color: var(--accent); }

.footer-tagline {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
}

.footer-cols {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col-heading {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255, 255, 255, 0.90);
  margin-bottom: 2px;
}

.footer-col a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--ease);
}

.footer-col a:hover { color: #ffffff; }

.footer-bottom {
  max-width: 1152px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  padding: 20px 0 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.5;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-brand { flex: none; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 4px; }
}

@media (max-width: 600px) {
  .hero { min-height: 400px; padding: 0 20px 44px; }
  .filters, .featured, .stacks, .blends, .results-section, .site-stats { padding-left: 16px; padding-right: 16px; }
  .peptide-grid { grid-template-columns: 1fr; }
  .footer { padding: 40px 16px 0; }
  .footer-cols { grid-template-columns: 1fr; }
  .footer-inner { gap: 20px; padding-bottom: 36px; }
  .footer-col { gap: 8px; }
  .nav { gap: 12px; }
  .peptide-list { grid-template-columns: 1fr; }
  .peptide-list-item:nth-child(odd) { border-right: none; }
}

/* ── SCROLL-REVEAL SYSTEM ── */
/* JS adds .will-reveal before observing; .is-visible fires on scroll entry */
.will-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 650ms var(--ease-reveal), transform 650ms var(--ease-reveal);
}
.will-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── HERO ENTRANCE ANIMATION ── */
@keyframes hero-fade-up {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero .hero-eyebrow                  { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 0ms; }
.hero h1                             { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 110ms; }
.hero-inner > p:not(.hero-eyebrow)   { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 200ms; }
.search-wrap                         { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 270ms; }
.hero--centered .hero-scroll-indicator { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 400ms; }

/* Why / About hero */
.why-hero .why-eyebrow               { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 0ms; }
.why-hero h1                         { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 110ms; }
.why-hero .why-hero-inner > p        { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 200ms; }

/* Editorial Policy hero */
.policy-hero .policy-eyebrow         { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 0ms; }
.policy-hero h1                      { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 110ms; }
.policy-hero .policy-hero-inner > p  { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 200ms; }

/* Guides hub hero */
.guides-hero .guides-hub-eyebrow     { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 0ms; }
.guides-hero h1                      { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 110ms; }
.guides-hero p                       { animation: hero-fade-up 750ms var(--ease-reveal) both; animation-delay: 200ms; }

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .will-reveal,
  .peptide-list-item { opacity: 1 !important; transform: none !important; }
}

/* ── PEPTIDE DETAIL PAGE ── */
.pep-loading-state {
  padding: 120px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
}

.pep-not-found {
  padding: 120px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
}

.peptide-page {
  padding: 20px 24px 96px;
}

/* ── TWO-COLUMN LAYOUT (TOC + CONTENT) ── */
.pep-layout {
  max-width: 1040px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  align-items: start;
}

/* ── STICKY TABLE OF CONTENTS ── */
.pep-toc {
  position: sticky;
  top: 72px;
  max-height: calc(100vh - 88px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.toc-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.pep-toc nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-link {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: color var(--ease), background var(--ease), border-color var(--ease);
  line-height: 1.4;
}

.toc-link:hover {
  color: var(--text-primary);
  background: var(--surface);
  border-left-color: var(--border-hover);
}

.toc-link.toc-active {
  color: var(--accent);
  background: var(--accent-light);
  border-left-color: var(--accent);
  font-weight: 500;
}

/* ── BREADCRUMB ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.breadcrumb a {
  color: var(--accent);
  transition: opacity var(--ease);
}

.breadcrumb a:hover { opacity: 0.75; }
.breadcrumb-sep { color: var(--text-muted); }

/* ── PEPTIDE HERO ── */
.pep-eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}

.pep-hero { margin-bottom: 12px; }

.pep-hero h1 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.pep-vials {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pep-vial-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--text-secondary);
}

.pep-themes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.pep-theme-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.5;
}

/* ── RESEARCH SNAPSHOT CARD ── */
.research-snapshot {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 20px;
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
  gap: 16px 24px;
}

.snapshot-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.snapshot-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

.snapshot-value {
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.4;
}

.evidence-stage { color: var(--accent); }

/* ── JUMP TO REFERENCES BUTTON ── */
.jump-refs-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid var(--info-border);
  border-radius: var(--radius-full);
  padding: 5px 14px;
  margin-bottom: 28px;
  background: var(--accent-light);
  transition: background var(--ease), color var(--ease), border-color var(--ease);
  cursor: pointer;
}

.jump-refs-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── CONTENT SECTIONS ── */
.pep-section {
  padding: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  margin-bottom: 18px;
}

.pep-section h2 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.pep-section p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.research-item-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.research-item-list li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.research-item-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.45;
}

/* ── RESEARCH SPLIT (SUGGESTS / UNKNOWN) ── */
.research-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.research-col {
  padding: 20px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
}

.unknown-col { background: var(--page-bg); }

.research-col-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.research-col-header h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.research-col-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.suggests-icon { background: rgba(21, 128, 61, 0.12); color: #4ade80; }
.unknown-icon  { background: rgba(194, 65, 12, 0.12); color: #fb923c; }

.research-col-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.research-col-list li {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  padding-left: 14px;
  position: relative;
}

.research-col-list li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

/* ── RESEARCH REFERENCES SECTION ── */
.references-section { margin-bottom: 40px; }

.references-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.references-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.references-count {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 2px 10px;
}

.references-intro {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 22px;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 16px;
}

.resource-card {
  padding: 20px 22px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--ease-md), box-shadow var(--ease-md), transform var(--ease-md);
}

.resource-card:hover {
  border-color: var(--border-hover);
}

.resource-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.resource-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}

.resource-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 500;
}

/* Evidence type badge colors */
.badge-human-trial     { background: rgba(21, 128, 61, 0.12); color: #4ade80; }
.badge-animal          { background: rgba(194, 65, 12, 0.12); color: #fb923c; }
.badge-review          { background: rgba(29, 78, 216, 0.12); color: #93c5fd; }
.badge-mechanistic     { background: rgba(126, 34, 206, 0.12); color: #c084fc; }
.badge-pk              { background: rgba(15, 118, 110, 0.12); color: #2dd4bf; }
.badge-regulatory      { background: rgba(71, 85, 105, 0.12); color: #94a3b8; }
.badge-educational     { background: rgba(100, 116, 139, 0.10); color: #94a3b8; }
.badge-research-ref    { background: rgba(67, 56, 202, 0.12); color: #a5b4fc; }

.resource-label-text {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.3;
}

.resource-title {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.55;
  flex: 1;
}

.resource-card-footer {
  padding-top: 10px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.resource-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  transition: opacity var(--ease);
}

.resource-link:hover { opacity: 0.7; }

.resource-link.disabled {
  color: var(--text-muted);
  cursor: default;
}

/* ── DISCLAIMER ── */
.disclaimer-box {
  padding: 18px 22px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--warning-text);
  line-height: 1.7;
  margin-top: 32px;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .pep-layout {
    grid-template-columns: 1fr;
  }
  .pep-toc { display: none; }
  .research-split { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .peptide-page { padding: 20px 16px 64px; }
  .pep-section { padding: 18px; }
  .research-snapshot { padding: 16px; }
  .resource-grid { grid-template-columns: 1fr; }
  .research-col { padding: 16px 18px; }
  .snapshot-grid { grid-template-columns: 1fr 1fr; }
}

/* ════════════════════════════════════════════════════════════════
   PEPTIDE DETAIL v2 — NEW SCHEMA STYLES
   ════════════════════════════════════════════════════════════════ */

/* ── GLOBAL DISCLAIMER BANNER ── */
.global-disclaimer-banner {
  padding: 12px 16px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--warning-text);
  line-height: 1.65;
  margin-bottom: 20px;
}

/* ── HERO v2 ── */
.pep-hero-wrap { margin-bottom: 12px; }

.pep-hero-split {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  margin-top: 6px;
}

.pep-hero-content { flex: 1; min-width: 0; }

.pep-hero-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.08;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.pep-hero-vial-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.pep-vial-badge-hero {
  background: var(--surface);
  border: var(--border-hero);
  border-radius: var(--radius-full);
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.pep-other-vials {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.pep-other-vials-label {
  font-size: 12px;
  color: var(--text-muted);
}

.pep-other-vial-link {
  font-size: 12px;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-full);
  padding: 3px 10px;
  transition: background var(--ease), color var(--ease);
}

.pep-other-vial-link:hover {
  background: var(--accent);
  color: #fff;
}

.pep-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.pep-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.pep-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.5;
}

.pep-evidence-level {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 500;
  padding: 5px 13px;
  border-radius: var(--radius-full);
  border: 1px solid currentColor;
}

.ev-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.ev-human       { color: #4ade80; background: rgba(21, 128, 61, 0.12); border-color: rgba(74, 222, 128, 0.25); }
.ev-mixed       { color: #fbbf24; background: rgba(180, 83, 9, 0.12); border-color: rgba(251, 191, 36, 0.25); }
.ev-preclinical { color: #fb923c; background: rgba(194, 65, 12, 0.12); border-color: rgba(251, 146, 60, 0.25); }
.ev-unknown     { color: #6b7280; background: var(--surface); border-color: var(--border); }

/* ── EVIDENCE CHIP (listing cards) ── */
.ev-chip {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid;
  line-height: 1.5;
  white-space: nowrap;
}

/* ── VIAL PLACEHOLDER CARD ── */
.pep-hero-right {
  flex: 0 0 220px;
  display: flex;
  justify-content: center;
}

.pep-vial-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 32px;
  background: var(--surface);
  border: var(--border-hero);
  border-radius: 16px;
  text-align: center;
  width: 100%;
}

.pep-vial-card-icon {
  color: var(--accent);
  opacity: 0.85;
}

.pep-vial-card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.pep-vial-card-strength {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 3px 10px;
}

/* ── SECTION BLOCKS ── */
.pep-section-block {
  margin-bottom: 52px;
}

.section-heading {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.section-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 22px;
}

.empty-field-note {
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
  padding: 12px 0;
}

/* ── INFO CALLOUT ── */
.info-callout {
  display: flex;
  gap: 10px;
  padding: 13px 16px;
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--info-text);
  line-height: 1.65;
  margin-bottom: 28px;
}

/* ── ACCORDION ── */
.accordion {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--border);
}

.accordion-item:last-child { border-bottom: none; }

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 22px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg);
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background var(--ease);
}

.accordion-header:hover { background: var(--surface); }

.accordion-item.open .accordion-header { background: var(--surface); }

.accordion-chevron {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
  display: block;
  transition: transform var(--ease-md);
}

.accordion-item.open .accordion-chevron { transform: rotate(180deg); }

.accordion-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 380ms var(--ease-reveal);
}

.accordion-body-inner {
  overflow: hidden;
}

.accordion-item.open .accordion-body { grid-template-rows: 1fr; }

.accordion-body-content {
  padding: 8px 22px 26px;
}

.accordion-body-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ── BENEFITS GRID ── */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.benefit-card {
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  transition: border-color var(--ease-md);
}

.benefit-card:hover {
  border-color: var(--border-hover);
}

.benefit-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 7px;
  line-height: 1.4;
}

.benefit-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── SIDE EFFECTS ── */
.side-effects-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 14px;
}

.side-effects-list li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.side-effects-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

.side-effects-note {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  line-height: 1.65;
}

/* ── DOSING SECTION ── */
.dosing-subsections {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.dosing-subsection {
  padding: 24px 26px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.dosing-subsection-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.dosing-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

/* ── DOSING TABLE ── */
.dosing-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.dosing-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
  font-size: 13px;
}

.dosing-table th {
  padding: 11px 16px;
  text-align: left;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.dosing-table td {
  padding: 14px 16px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  line-height: 1.55;
  vertical-align: top;
  transition: background var(--ease);
}

.dosing-table tbody tr:last-child td { border-bottom: none; }

.dosing-table tbody tr:nth-child(even) td { background: var(--page-bg); }

.dosing-table tbody tr:hover td { background: var(--surface); }

.protocol-label {
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

.dose-cell {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.notes-cell {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── PROTOCOL GROUPS (phase-row layout, replaces flat dosing table) ── */
.protocol-group + .protocol-group {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.protocol-group-name {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 10px;
}

.protocol-group-freq {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 3px 10px;
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.protocol-rows {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.protocol-rows-header {
  display: grid;
  grid-template-columns: 1fr 1.25fr 1.5fr;
  padding: 9px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  gap: 12px;
}

.protocol-rows-header:has(span:nth-child(4)) {
  grid-template-columns: 1fr 1fr 1fr 1.5fr;
}

.protocol-row {
  display: grid;
  grid-template-columns: 1fr 1.25fr 1.5fr;
  padding: 13px 16px;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
  transition: background var(--ease);
}

.protocol-row:last-child { border-bottom: none; }

.protocol-row:hover { background: var(--surface); }

.protocol-row:has(.protocol-row-dose):has(.protocol-row-notes) {
  grid-template-columns: 1fr 1fr 1fr 1.5fr;
}

.protocol-row-phase {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.protocol-row-dose {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.protocol-row-vol {
  font-size: 13px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.protocol-row-notes {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.55;
}

@media (max-width: 540px) {
  .protocol-rows-header { display: none; }

  .protocol-row,
  .protocol-row:has(.protocol-row-notes) {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .protocol-row-phase {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .protocol-row-dose { font-size: 15px; }

  .protocol-row-vol { font-size: 13px; }

  .protocol-row { padding: 14px 16px; }
}

/* ── RECONSTITUTION STATS ── */
.recon-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.recon-stat {
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: left;
}

.recon-stat-label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.recon-stat-value {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.recon-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 18px;
}

.recon-steps {
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.recon-steps li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 4px;
}

/* ── OPTION CHIPS ── */
.option-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.option-chip {
  display: inline-block;
  padding: 5px 14px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--info-border);
}



/* ── RECOMMENDED FOR ── */
.recommended-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.recommended-card {
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  transition: border-color var(--ease-md);
}

.recommended-card:hover {
  border-color: var(--border-hover);
}

.recommended-type {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.recommended-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── SUPPLIES SECTION ── */
.supplies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.supply-card {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: flex-start;
  box-shadow: var(--shadow-xs);
  transition: border-color var(--ease-md);
}

.supply-card:hover {
  border-color: var(--border-hover);
}

.supply-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent);
}

.supply-icon svg {
  width: 18px;
  height: 18px;
}

.supply-content { flex: 1; min-width: 0; }

.supply-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  line-height: 1.35;
}

.supply-purpose {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 7px;
}

.supply-qty {
  display: inline-block;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 2px 9px;
}

.supply-resource-link {
  display: inline-flex;
  align-items: center;
  margin-top: 9px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 150ms ease-out;
}

.supply-resource-link:hover {
  color: var(--text-secondary);
}

.supply-resource-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── STORAGE SECTION ── */
.storage-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

.storage-card {
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.storage-card-recon {
  background: var(--success-bg);
  border-color: var(--success-border);
}

.storage-card-icon {
  width: 32px;
  height: 32px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 14px;
  border: 1px solid var(--border);
}

.storage-card-recon .storage-card-icon {
  color: var(--success-text);
  border-color: var(--success-border);
}

.storage-card-icon svg { width: 16px; height: 16px; }

.storage-card-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.storage-card-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.55;
}

.storage-tips-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.storage-tips-block {}

.storage-tips-heading {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.storage-tips-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.storage-tips-list li {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  padding-left: 16px;
  position: relative;
}

.storage-tips-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.4;
}

/* ── RESEARCH SECTION ── */
.evidence-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  padding: 18px 22px;
  background: var(--accent-soft);
  border: 1px solid var(--info-border);
  border-radius: var(--radius-sm);
  margin-bottom: 32px;
}

.references-subheading {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ── RESPONSIVE v2 ── */
@media (max-width: 900px) {
  .pep-hero-split { flex-direction: column-reverse; gap: 24px; }
  .pep-hero-right { width: 100%; flex: none; }
  .pep-vial-card { flex-direction: row; justify-content: center; gap: 20px; padding: 18px 24px; }
  .pep-vial-card-icon { display: none; }
  .recommended-grid { grid-template-columns: 1fr; }
  .storage-cards { grid-template-columns: 1fr; }
  .storage-tips-grid { grid-template-columns: 1fr; }
  .recon-stats { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 600px) {
  .pep-hero-split { gap: 20px; }
  .pep-hero-right { display: none; }
  .benefits-grid { grid-template-columns: 1fr; }
  .recon-stats { grid-template-columns: 1fr; }
  .recommended-grid { grid-template-columns: 1fr; }
  .supplies-grid { grid-template-columns: 1fr; }
  .storage-cards { grid-template-columns: 1fr; }
  .storage-tips-grid { grid-template-columns: 1fr; }
  .dosing-subsection { padding: 18px; }
  .accordion-header { padding: 15px 18px; }
  .accordion-body-content { padding: 6px 18px 20px; }
  .section-heading { font-size: 18px; }
  .pep-section-block { margin-bottom: 36px; }
}

/* ── PEPTIDE STACKS ── */

/* Hero card for stacks (two vials + plus icon) */
.pep-stack-vial-card {
  min-width: 200px;
}

.stack-hero-components {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.stack-hero-component {
  display: inline-block;
  padding: 3px 10px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
}

/* Stack Protocol Details section */
.stack-components-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.stack-component-card {
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stack-component-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.stack-component-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.stack-component-route {
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-light);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  width: fit-content;
}

.stack-component-recon {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  padding: 8px 12px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

@media (max-width: 600px) {
  .stack-components-grid { grid-template-columns: 1fr; }
  .pep-stack-vial-card { min-width: unset; }
}

/* ════════════════════════════════════════════════════════════════
   PEPTIDES MEGA-DROPDOWN — 3 COLUMN LAYOUT
   ════════════════════════════════════════════════════════════════ */

.dropdown-cols-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.dropdown-col {
  padding: 8px 0;
  min-width: 0;
}

.dropdown-col:not(:last-child) {
  border-right: 1px solid rgba(255, 255, 255, 0.10);
}

.dropdown-col-header {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: rgba(255, 255, 255, 0.80);
  padding: 8px 12px 6px;
  white-space: nowrap;
}

.dropdown-col .dropdown-scroll {
  max-height: 300px;
  padding: 0;
}

.dropdown-item-name {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.35;
  transition: color var(--ease);
}

.dropdown-item-vial {
  display: block;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.62);
  margin-top: 1px;
  line-height: 1.3;
  transition: color var(--ease);
}

.dropdown-item:hover .dropdown-item-name { color: #ffffff; }
.dropdown-item:hover .dropdown-item-vial { color: rgba(255, 255, 255, 0.76); }

.dropdown-item-empty {
  display: block;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
}

@media (max-width: 900px) {
  .peptides-menu {
    min-width: 0;
    width: calc(100vw - 24px);
    max-width: calc(100vw - 24px);
    right: 0;
  }

  .dropdown-cols-layout {
    grid-template-columns: 1fr;
  }

  .dropdown-col:not(:last-child) {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .dropdown-col .dropdown-scroll {
    max-height: 160px;
  }
}

/* ════════════════════════════════════════════════════════════════
   POLISH PASS — SPACING, CITATIONS, SCROLL OFFSETS
   ════════════════════════════════════════════════════════════════ */

/* ── SCROLL OFFSETS (sticky 56px header + 16px breathing room) ── */
.pep-section-block { scroll-margin-top: 72px; }
.resource-card     { scroll-margin-top: 80px; }
.results-section   { scroll-margin-top: 72px; }

/* ── INLINE CITATION LINKS ── */
.inline-citation {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.8em;
  vertical-align: super;
  line-height: 0;
  text-decoration: none;
  transition: opacity var(--ease);
  cursor: pointer;
  white-space: nowrap;
}

.inline-citation:hover {
  opacity: 0.65;
  text-decoration: underline;
}

.inline-citation-text {
  color: var(--accent);
  font-size: 0.8em;
  vertical-align: super;
  line-height: 0;
  font-weight: 500;
  white-space: nowrap;
}

/* ── SOURCE CARD TARGET HIGHLIGHT ── */
.resource-card:target {
  border-color: var(--accent);
  animation: source-flash 2s ease-out forwards;
}

@keyframes source-flash {
  0%   { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(14,165,233,0.20); }
  60%  { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(14,165,233,0.08); }
  100% { border-color: var(--border); box-shadow: none; }
}


/* ════════════════════════════════════════════════════════════════
   GUIDES
   ════════════════════════════════════════════════════════════════ */

/* ── GUIDES HUB HERO ── */
.guides-hero {
  padding: 64px 24px 48px;
  text-align: left;
  background: var(--page-bg);
  border-bottom: 1px solid var(--border);
}

.guides-hero-inner {
  max-width: 1040px;
  margin: 0 auto;
}

.guides-hub-eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
  line-height: 1;
}

.guides-hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.12;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.guides-hero p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── GUIDES GRID SECTION ── */
.guides-grid-section {
  max-width: 1040px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.guides-grid-header { margin-bottom: 28px; }

.guides-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ── GUIDE CARD ── */
.guide-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px 22px;
  cursor: pointer;
  transition: border-color var(--ease-md), box-shadow var(--ease-md), transform var(--ease-md);
  outline: none;
}

.guide-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.guide-card:focus-visible {
  box-shadow: var(--shadow-focus);
  border-color: var(--accent);
}

.guide-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 18px;
  flex-shrink: 0;
  transition: background var(--ease-md), color var(--ease-md);
}

.guide-card:hover .guide-card-icon { background: var(--accent); color: #fff; }
.guide-card-icon svg { width: 22px; height: 22px; }

.guide-card-meta {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 10px;
}

.guide-card-category {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
}

.guide-card-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.guide-card-read-time { font-size: 11px; color: var(--text-muted); }

.guide-card h2 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 10px;
}

.guide-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}

.guide-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.guide-card-tags { display: flex; gap: 6px; flex-wrap: wrap; }

.guide-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
  transition: gap var(--ease);
}

.guide-card:hover .guide-card-cta { gap: 8px; }
.guide-card-cta svg { width: 13px; height: 13px; }

/* ── GUIDE DETAIL: BACK BUTTON ── */
.guide-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 7px 16px 7px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--bg);
  cursor: pointer;
  margin-bottom: 28px;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
  font-family: inherit;
}

.guide-back-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--surface);
}

.guide-back-btn svg { width: 14px; height: 14px; }

/* ── GUIDE DETAIL: HERO META ── */
.guide-hero-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.guide-read-time-badge {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px 12px;
}

.guide-hero-icon-card {
  background: var(--accent-light);
  border-color: var(--info-border);
}

.guide-hero-icon-wrap {
  width: 56px;
  height: 56px;
  color: var(--accent);
  margin-bottom: 4px;
}

.guide-hero-icon-wrap svg { width: 100%; height: 100%; }

/* ── GUIDE ARTICLE PROSE ── */
.guide-paragraph {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 20px;
}

.guide-paragraph:last-child { margin-bottom: 0; }

.guide-subheading {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin: 32px 0 14px;
  line-height: 1.35;
}

.guide-subheading:first-child { margin-top: 4px; }

/* ── GUIDE LISTS ── */
.guide-list {
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.guide-list li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  padding-left: 20px;
  position: relative;
}

.guide-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

.guide-list-ordered { counter-reset: guide-ol; }

.guide-list-ordered li {
  counter-increment: guide-ol;
  padding-left: 32px;
}

.guide-list-ordered li::before {
  content: counter(guide-ol);
  width: 20px;
  height: 20px;
  top: 1px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  text-align: center;
  line-height: 20px;
  border-radius: 50%;
  opacity: 1;
}

/* ── GUIDE CALLOUTS ── */
.guide-callout {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  line-height: 1.7;
  margin: 22px 0;
  border: 1px solid;
}

.guide-callout-info      { background: var(--info-bg);    border-color: var(--info-border);    color: var(--info-text); }

/* ════════════════════════════════════════════════════════════════
   CALCULATOR PAGE
   ════════════════════════════════════════════════════════════════ */

.calc-page {
  padding: 48px 24px 96px;
  background: var(--page-bg);
  min-height: 70vh;
}

.calc-layout {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── HERO ── */
.calc-hero {
  padding-bottom: 40px;
}

.calc-eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 14px;
  line-height: 1;
}

.calc-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.calc-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 68ch;
  margin-bottom: 20px;
}

.calc-disclaimer-banner {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  color: var(--warning-text);
  line-height: 1.6;
  max-width: 68ch;
}

.calc-disclaimer-banner svg {
  flex-shrink: 0;
  margin-top: 1px;
  opacity: 0.85;
}

/* ── CARD WRAPPER ── */
.calc-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

/* ── TWO-COLUMN FORM GRID ── */
.calc-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.calc-inputs-col {
  padding: 28px 28px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-right: 1px solid var(--border);
}

.calc-outputs-col {
  padding: 28px;
  display: flex;
  flex-direction: column;
  background: var(--surface);
}

/* ── COLUMN LABELS ── */
.calc-col-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
  line-height: 1;
}

/* ── FORM FIELDS ── */
.calc-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.calc-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 6px;
}

.calc-label-optional {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: lowercase;
  letter-spacing: 0;
}

.calc-input,
.calc-select {
  width: 100%;
  padding: 9px 12px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--ease-md), box-shadow var(--ease-md);
  -webkit-appearance: none;
  appearance: none;
}

.calc-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23636360' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
  padding-right: 32px;
  cursor: pointer;
}

.calc-input:hover:not(:focus),
.calc-select:hover:not(:focus) {
  border-color: var(--border-hover);
}

.calc-input:focus,
.calc-select:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}

.calc-input::placeholder { color: var(--text-muted); }

/* ── INPUT WITH INLINE UNIT LABEL ── */
.calc-input-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.calc-input-unit .calc-input {
  padding-right: 44px;
}

.calc-unit {
  position: absolute;
  right: 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  pointer-events: none;
  font-family: 'JetBrains Mono', monospace;
}

/* ── DOSE ROW (input + unit toggle) ── */
.calc-dose-row {
  display: flex;
  gap: 0;
}

.calc-dose-input {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  flex: 1;
}

.calc-unit-select {
  width: auto;
  padding: 9px 28px 9px 10px;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  outline: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23636360' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 12px;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color var(--ease-md), box-shadow var(--ease-md);
  flex-shrink: 0;
}

.calc-dose-input:focus + .calc-unit-select,
.calc-unit-select:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
  z-index: 1;
}

/* ── EMPTY / LOADING STATE ── */
.calc-results-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 24px;
}

.calc-results-empty svg { opacity: 0.3; }

.calc-results-empty p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── RESULT GROUPS ── */
.calc-result-group {
  margin-bottom: 18px;
}

.calc-result-group:last-of-type { margin-bottom: 0; }

.calc-result-group-label {
  font-size: 9.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  line-height: 1;
}

.calc-result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 7px 0;
  gap: 8px;
}

.calc-result-row + .calc-result-row {
  border-top: 1px solid rgba(255,255,255,0.04);
}

.calc-result-label {
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.calc-result-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: right;
}

.calc-result-value.primary {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
}

.calc-result-note {
  font-family: inherit;
  font-size: 10px;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 4px;
}

.calc-result-subtext {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
  text-align: right;
  padding: 2px 0 6px;
}

/* ── ERROR BOX ── */
.calc-error-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-sm);
  margin-top: 8px;
}

.calc-error-box svg { flex-shrink: 0; margin-top: 2px; color: var(--warning-text); }

.calc-error-box ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.calc-error-box li {
  font-size: 12.5px;
  color: var(--warning-text);
  line-height: 1.5;
}

/* ── WARNING BOX ── */
.calc-warning-box {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 10px 13px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--warning-text);
  line-height: 1.6;
  margin-top: 12px;
}

.calc-warning-box svg { flex-shrink: 0; margin-top: 2px; }

/* ── BLEND COMPOSITION NOTE ── */
.calc-blend-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  border-radius: var(--radius-sm);
  margin-top: 14px;
}

.calc-blend-note svg { flex-shrink: 0; margin-top: 2px; color: var(--info-text); }

.calc-blend-note-heading {
  font-size: 11px;
  font-weight: 600;
  color: var(--info-text);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.calc-blend-note p {
  font-size: 12px;
  color: var(--info-text);
  line-height: 1.6;
  opacity: 0.9;
}

/* ── RECONSTITUTION STEPS ── */
.calc-steps-intro {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 68ch;
}

.calc-steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.calc-steps-list li {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.calc-steps-list li:last-child { border-bottom: none; }

.calc-step-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  flex-shrink: 0;
  margin-top: 2px;
  letter-spacing: 0.04em;
}

.calc-step-body {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.calc-step-body strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* ── RESPONSIVE ── */
@media (max-width: 700px) {
  .calc-form-grid {
    grid-template-columns: 1fr;
  }

  .calc-inputs-col {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 20px;
  }

  .calc-outputs-col {
    padding: 20px;
    min-height: 200px;
  }

  .calc-field-row {
    grid-template-columns: 1fr;
  }

  .calc-page { padding: 32px 16px 72px; }
}

@media (max-width: 480px) {
  .calc-layout { gap: 4px; }
  .calc-title { font-size: 24px; }
}
.guide-callout-warning   { background: var(--warning-bg); border-color: var(--warning-border); color: var(--warning-text); }
.guide-callout-tip       { background: var(--success-bg); border-color: var(--success-border); color: var(--success-text); }
.guide-callout-important { background: rgba(126, 34, 206, 0.10); border-color: rgba(196, 181, 253, 0.20); color: #c084fc; }
.guide-callout strong    { font-weight: 600; }

/* ── GUIDE TABLE ── */
.guide-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin: 22px 0;
}

.guide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 400px;
}

.guide-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.guide-table td {
  padding: 13px 16px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  line-height: 1.6;
  vertical-align: top;
}

.guide-table tbody tr:last-child td { border-bottom: none; }
.guide-table tbody tr:nth-child(even) td { background: var(--page-bg); }
.guide-table tbody tr:hover td { background: var(--surface); }
.guide-table td.cell-primary { font-weight: 500; color: var(--text-primary); }
.guide-table td.cell-accent  { font-weight: 600; color: var(--accent); }

/* ── GUIDE STAT CARDS ── */
.guide-stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.guide-stat-card {
  padding: 20px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
}

.guide-stat-label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.guide-stat-value {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* ── GUIDE PAGE TRANSITION ── */
.guide-fade-in {
  animation: guideFadeIn 220ms ease-out both;
}

@keyframes guideFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .guide-fade-in { animation: none; }
}

/* ── GUIDES RESPONSIVE ── */
@media (max-width: 900px) {
  .guides-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .guides-hero { padding: 48px 16px 36px; }
  .guides-grid-section { padding: 36px 16px 72px; }
  .guides-grid { grid-template-columns: 1fr; }
  .guide-card { padding: 24px 20px 20px; }
  .guide-paragraph { font-size: 14px; }
  .guide-subheading { margin: 24px 0 12px; }
}

/* ── COOKIE CONSENT BANNER ── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 250ms ease-out, transform 250ms ease-out;
}

.cookie-banner.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.cookie-banner-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 62ch;
}

.cookie-banner-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.cookie-btn-decline {
  font-size: 13px;
  font-family: inherit;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 14px;
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease);
}

.cookie-btn-decline:hover {
  color: var(--text-secondary);
  border-color: var(--border-hover);
}

.cookie-btn-accept {
  font-size: 13px;
  font-family: inherit;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 6px 14px;
  cursor: pointer;
  transition: background var(--ease);
}

.cookie-btn-accept:hover { background: var(--accent-hover); }

@media (max-width: 600px) {
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }
  .cookie-banner-actions { width: 100%; justify-content: flex-end; }
}

/* ── CONTACT MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.60);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease-out;
}

.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-panel {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-hover);
  width: 100%;
  max-width: 480px;
  padding: 28px;
  transform: translateY(8px);
  transition: transform 200ms ease-out;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-overlay.is-open .modal-panel { transform: translateY(0); }

body.modal-open { overflow: hidden; }

@media (max-width: 600px) {
  .modal-overlay { padding: 16px; }
  .modal-panel { padding: 20px 18px; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.modal-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--ease), background var(--ease);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.modal-close:hover {
  color: var(--text-primary);
  background: var(--surface);
}

.modal-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.55;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.form-input,
.form-select {
  font-size: 14px;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--page-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 12px;
  width: 100%;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.form-input::placeholder { color: var(--text-muted); }

.form-input:hover:not(:focus),
.form-select:hover:not(:focus) { border-color: var(--border-hover); }

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}

.form-textarea {
  resize: vertical;
  min-height: 96px;
}

.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2378716c' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
  padding-right: 32px;
  cursor: pointer;
}

.form-submit {
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  cursor: pointer;
  transition: background var(--ease);
  margin-top: 4px;
  align-self: flex-start;
}

.form-submit:hover { background: var(--accent-hover); }

.modal-success {
  text-align: center;
  padding: 20px 0 8px;
}

.modal-success-icon {
  width: 44px;
  height: 44px;
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  color: var(--success-text);
}

.modal-success h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.modal-success p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* active nav link state (current page) */
.nav-link-active {
  color: var(--text-primary);
  font-weight: 500;
}

/* inline prose link */
.content-link {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--ease);
}
.content-link:hover { opacity: 0.75; }

/* about page stats note */
.about-stats-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

/* nav contact button — same visual weight as .nav-link */
.nav-contact-btn {
  font-size: 14px;
  font-family: inherit;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.82);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color var(--ease);
}

.nav-contact-btn:hover { color: #ffffff; }

/* ── NAV AUTH GROUP ── */
.nav-auth-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-user-email {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-auth-btn {
  font-size: 13px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  padding: 6px 14px;
  border-radius: 6px;
  line-height: 1;
  transition: background var(--ease), color var(--ease), border-color var(--ease), opacity var(--ease);
}

.nav-auth-btn--secondary {
  color: rgba(255, 255, 255, 0.78);
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.nav-auth-btn--secondary:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.35);
}

.nav-auth-btn--primary {
  color: #fff;
  background: var(--accent);
  border: 1px solid var(--accent);
}

.nav-auth-btn--primary:hover { opacity: 0.88; }

/* ── FORM ERROR ── */
.form-error {
  font-size: 13px;
  color: #d94f4f;
  min-height: 1.2em;
  line-height: 1.4;
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  .cookie-banner,
  .modal-overlay,
  .modal-panel { transition: none; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   CALCULATOR REDESIGN — New component styles
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Homepage calculator section ── */
.homepage-calc-section {
  background: var(--page-bg);
  padding: 80px 0 96px;
  border-top: 1px solid var(--border);
}

.homepage-calc-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

.homepage-calc-header {
  text-align: center;
  margin-bottom: 40px;
}

.homepage-calc-header h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin: 10px 0 12px;
}

.homepage-calc-header p {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 52ch;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── CTA card inside hero ── */
.calc-cta-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px 52px;
  margin-top: 28px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  max-width: 460px;
  margin-inline: auto;
  text-decoration: none;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.015em;
  box-shadow: 0 2px 18px rgba(14, 165, 233, 0.32);
  transition: background 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.calc-cta-card:hover {
  background: var(--accent-hover);
  box-shadow: 0 6px 30px rgba(14, 165, 233, 0.55);
  transform: translateY(-2px);
}

.calc-cta-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(14, 165, 233, 0.10);
  border-radius: var(--radius-sm);
  color: var(--accent);
  flex-shrink: 0;
}

.calc-cta-text {
  flex: 1;
  min-width: 0;
}

.calc-cta-headline {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin: 0;
}

.calc-cta-body {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 3px 0 0;
  line-height: 1.5;
}

.calc-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 150ms ease, box-shadow 150ms ease;
}

.calc-cta-btn:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.40);
}

/* ── Hero action buttons (Save / Favorites) ── */
.pep-hero-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.pep-fav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, background 150ms ease;
}

.pep-fav-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.pep-fav-btn.is-favorited {
  background: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

.pep-fav-btn svg {
  flex-shrink: 0;
}

.pep-fav-btn.is-favorited svg {
  fill: var(--accent);
}

/* ── Detail page calculator section ── */
.pep-calc-section {
  scroll-margin-top: 80px;
}

.pep-calc-section-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: -4px;
  margin-bottom: 24px;
  line-height: 1.6;
}

/* ── Stack per-component calculator pair ── */
.stack-calc-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stack-calc-pair .sb-calc-wrap {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
}

/* Section h2 already labels the section — suppress per-calc heading inside pair */
.stack-calc-pair .sb-calc-heading {
  display: none;
}

@media (max-width: 600px) {
  .stack-calc-pair {
    grid-template-columns: 1fr;
  }
}

/* ── Searchable peptide input ── */
.calc-search-wrap {
  position: relative;
}

.calc-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.calc-search-input {
  padding-left: 32px !important;
}

.calc-search-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--surface);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  max-height: 280px;
  overflow-y: auto;
}

.calc-search-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 14px;
  cursor: pointer;
  transition: background 100ms ease;
}

.calc-search-item:hover,
.calc-search-item:focus {
  background: var(--surface-hover);
}

.calc-search-item-name {
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.calc-search-item-type {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  flex-shrink: 0;
  padding: 2px 6px;
  background: var(--bg);
  border-radius: var(--radius-xs);
}

/* ── Combobox inputs (vial / water / dose) ── */
.calc-combo-wrap {
  position: relative;
}

.calc-combo-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 110;
  background: var(--surface);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  max-height: 200px;
  overflow-y: auto;
}

.calc-combo-dropdown[hidden] { display: none; }

.calc-combo-item {
  display: block;
  width: 100%;
  padding: 8px 12px;
  text-align: left;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background 100ms ease;
}

.calc-combo-item:hover,
.calc-combo-item:focus-visible {
  background: var(--surface-hover);
  outline: none;
}

/* Unit label inside field labels */
.calc-label-unit {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-left: 4px;
}

/* Browse-all header in homepage search dropdown */
.search-dropdown-label {
  padding: 8px 16px 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.calc-field-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
  min-height: 0;
}

/* ── Dose preset pill buttons ── */
.calc-preset-group {
  display: flex;
  gap: 8px;
}

.calc-preset-btn {
  flex: 1;
  padding: 8px 0;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-primary);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, background 150ms ease;
  line-height: 1;
}

.calc-preset-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.calc-preset-btn--active {
  border-color: var(--accent) !important;
  background: var(--accent-light) !important;
  color: var(--accent) !important;
}

.calc-preset-btn--unavailable,
.calc-preset-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.calc-preset-note {
  font-size: 11px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ── Primary result: "Draw to X units" ── */
.calc-draw-hero {
  text-align: center;
  padding: 24px 12px 16px;
}

.calc-draw-eyebrow {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--text-muted);
  margin: 0 0 4px;
}

.calc-draw-value {
  font-size: clamp(40px, 6vw, 56px);
  font-weight: 700;
  line-height: 1;
  color: var(--success-text);
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}

.calc-draw-unit {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 500;
  opacity: 0.85;
}

.calc-draw-sub {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 28ch;
  margin: 0 auto;
}

/* ── Secondary detail grid ── */
.calc-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-top: 16px;
  margin-bottom: 4px;
}

.calc-detail-item {
  padding: 11px 14px;
  background: var(--bg);
}

.calc-detail-label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.calc-detail-value {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

/* ── Saved Calculations section ── */
.saved-calcs-section { margin-top: 0; }

.saved-calcs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.saved-calcs-refresh {
  display: inline-flex;
  align-items: center;
  padding: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease;
}
.saved-calcs-refresh:hover { border-color: var(--accent); color: var(--accent); }

.saved-calcs-loading,
.saved-calcs-empty {
  font-size: 13px;
  color: var(--text-muted);
  padding: 16px 0;
}

.saved-calc-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin-bottom: 10px;
  background: var(--bg);
  transition: border-color 150ms ease;
}
.saved-calc-card:hover { border-color: var(--border-hover); }

.saved-calc-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.saved-calc-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.saved-calc-date {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.saved-calc-values {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 8px 16px;
  margin-bottom: 14px;
}

.saved-calc-val {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.saved-calc-val-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.saved-calc-val-num {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
}

.saved-calc-actions {
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.saved-calc-delete {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease;
}
.saved-calc-delete:hover { border-color: #e05252; color: #e05252; }
.saved-calc-delete:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Safety note ── */
.calc-safety-note {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 12px 8px 4px;
  border-top: 1px solid var(--border);
  margin-top: 12px;
  line-height: 1.6;
}

/* ── Save calculation button ── */
.calc-save-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 7px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, background 150ms ease;
}

.calc-save-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.calc-save-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Responsive additions ── */
@media (max-width: 700px) {
  .calc-draw-value {
    font-size: 40px;
  }

  .calc-detail-grid {
    grid-template-columns: 1fr;
  }

  .homepage-calc-section {
    padding: 56px 0 72px;
  }

  .homepage-calc-header h2 {
    font-size: 22px;
  }
}

@media (max-width: 480px) {
  .calc-cta-card {
    max-width: 100%;
    padding: 18px 28px;
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .calc-cta-card,
  .calc-cta-btn,
  .calc-preset-btn {
    transition: none;
    transform: none !important;
  }
}

/* ── SIDEBAR CALCULATOR PANEL ── */
.pep-sidebar-calc-container {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.sb-calc-heading {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.sb-calc-peptide-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sb-calc-field { margin-bottom: 10px; }

.sb-calc-label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.sb-calc-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 6px 8px;
  font-size: 12px;
  font-family: inherit;
  box-sizing: border-box;
  transition: border-color var(--ease);
}

.sb-calc-input:focus {
  outline: none;
  border-color: var(--border-hover);
  box-shadow: var(--shadow-focus);
}

.sb-preset-row { display: flex; gap: 6px; margin-bottom: 16px; }

.sb-preset-pill {
  flex: 1;
  padding: 5px 0;
  font-size: 11px;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-primary);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, background 150ms ease;
}

.sb-preset-pill:hover:not(.sb-preset-pill--unavailable) {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.sb-preset-pill--active {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

.sb-preset-pill--unavailable {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.sb-results { margin-top: 12px; }

.sb-empty-state {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 12px 0;
}

.sb-error {
  font-size: 11px;
  color: var(--warning-text);
  padding: 8px 0;
  text-align: center;
}

.sb-draw-hero { text-align: center; padding: 14px 0 6px; }

.sb-draw-eyebrow {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.sb-draw-value {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--success-text);
  letter-spacing: -0.02em;
}

.sb-draw-unit { font-size: 20px; font-weight: 500; }

.sb-draw-sub {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.sb-draw-detail {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 6px;
}

.sb-warn {
  font-size: 10px;
  color: var(--warning-text);
  text-align: center;
  margin-top: 8px;
}

.sb-calc-safety {
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  line-height: 1.5;
}

/* Desktop: hide inline calc section (sidebar handles it) */
@media (min-width: 901px) {
  .pep-calc-inline-only { display: none; }
}

/* Mobile: hide sidebar calc (inline section handles it) */
@media (max-width: 900px) {
  .pep-sidebar-calc-container { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sb-preset-pill,
  .sb-calc-input { transition: none; }
}

/* ── SYRINGE VISUAL ─────────────────────────────────────────────────────────── */

.calc-syringe-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 12px 6px;
  gap: 8px;
}

.calc-syringe-wrap--empty {
  opacity: 0.4;
}

.calc-syringe-svg {
  width: 100%;
  max-width: 100%;
  height: auto;
}

/* SVG element classes */
.syr-barrel {
  fill: var(--bg);
  stroke: var(--border);
  stroke-width: 1.5;
}

.syr-fill {
  fill: var(--accent);
  opacity: 0.22;
}

.syr-plunger-flange,
.syr-plunger-rod {
  fill: var(--surface);
  stroke: var(--border);
  stroke-width: 1.5;
}

.syr-needle-hub {
  fill: var(--surface);
  stroke: var(--border);
  stroke-width: 1.5;
}

.syr-needle {
  fill: var(--text-muted);
  opacity: 0.4;
}

.syr-tick-maj {
  stroke: var(--border);
  stroke-width: 1;
}

.syr-tick-min {
  stroke: var(--border);
  stroke-width: 0.75;
  opacity: 0.5;
}

.syr-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  fill: var(--text-muted);
}

.syr-indicator {
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-dasharray: 3 2;
}

.syr-indicator-dot {
  fill: var(--accent);
}

/* Scale column labels (Units / mL) below the SVG */
.calc-syringe-scale-row {
  display: flex;
  justify-content: space-between;
  width: 100%;
  max-width: 200px;
  padding: 0 54px;
  box-sizing: border-box;
}

.calc-syringe-scale-lbl {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

.calc-syringe-scale-sub {
  font-size: 8px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

/* Caption: dose + draw instruction */
.calc-syringe-cap {
  text-align: center;
  line-height: 1.5;
  margin-top: 2px;
}

.calc-syringe-cap-dose {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 2px;
}

.calc-syringe-cap-draw {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0;
}

.calc-syringe-cap-draw strong {
  color: var(--accent);
  font-weight: 600;
}

.calc-syringe-cap-empty {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
  max-width: 28ch;
}

/* Responsive */
@media (max-width: 700px) {
  .calc-syringe-wrap { padding: 12px 4px 4px; }
}

@media (prefers-reduced-motion: reduce) {
  .syr-fill { transition: none; }
}

/* ── VISUALLY HIDDEN (screen readers only) ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ══════════════════════════════════════════════════════
   MOBILE NAV — hamburger button + full-screen panel
   ══════════════════════════════════════════════════════ */

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--ease);
  flex-shrink: 0;
}
.nav-hamburger:hover { background: rgba(255,255,255,0.06); }
.nav-hamburger:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.hamburger-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255,255,255,0.85);
  border-radius: 2px;
  transform-origin: center;
  transition: transform 200ms ease-out, opacity 150ms ease-out, width 150ms ease-out;
}
.header.nav-open .hamburger-bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.header.nav-open .hamburger-bar:nth-child(2) { opacity: 0; width: 0; }
.header.nav-open .hamburger-bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Disable backdrop-filter when mobile nav is open so position:fixed child is not clipped on Safari */
.header.nav-open {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

@media (max-width: 768px) {
  .nav-hamburger { display: flex; }

  /* Panel: content-height, scrollable only if content exceeds viewport */
  .nav {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    max-height: calc(100dvh - 56px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 24px;
    background: var(--bg);
    border-top: 1px solid var(--border);
    overflow-y: auto;
    z-index: 99;
  }
  @supports not (max-height: 1dvh) {
    .nav { max-height: calc(100vh - 56px); }
  }
  body.nav-open .nav { display: flex; }

  /* Nav items in panel */
  .nav-link,
  .nav-btn,
  .nav-contact-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0 24px;
    min-height: 52px;
    font-size: 16px;
    font-weight: 500;
    color: rgba(255,255,255,0.88);
    border-bottom: 1px solid var(--border);
    letter-spacing: 0;
    opacity: 1;
  }

  /* Dropdowns: inline, not positioned */
  .nav-dropdown { position: static; }
  .nav-dropdown.open > .nav-btn { color: var(--accent); }

  .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.025);
    padding: 4px 0 8px;
    min-width: 0;
    width: 100%;
  }
  .nav-dropdown.open .dropdown-menu { display: block; }

  /* Peptides mega-menu: single column, full width */
  .peptides-menu {
    min-width: 0;
    width: 100%;
    max-width: none;
  }
  .dropdown-cols-layout { grid-template-columns: 1fr; }
  .dropdown-col:not(:last-child) {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .dropdown-col .dropdown-scroll { max-height: 180px; }

  .dropdown-item  { padding: 10px 24px; font-size: 14px; }
  .dropdown-header { padding: 10px 24px 4px; }

  /* Auth group: vertical inside panel */
  .nav-auth-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px 24px 8px;
  }
  .nav-auth-btn {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    text-align: center;
    min-height: 44px;
    justify-content: center;
  }
  .nav-user-email {
    padding: 16px 24px 0;
    max-width: none;
    font-size: 14px;
    display: block;
  }
}

body.nav-open { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .hamburger-bar { transition: none; }
}

/* ── PEPTIDES NAV CARDS (dropdown) ─────────────────────────────────────────── */
.peptides-nav-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px;
  min-width: 300px;
}
.peptides-nav-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--ease);
}
.peptides-nav-card:hover { background: var(--surface-hover); }
.peptides-nav-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.peptides-nav-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}
.peptides-nav-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}
.peptides-nav-arrow {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--ease), color var(--ease);
}
.peptides-nav-card:hover .peptides-nav-arrow {
  transform: translateX(2px);
  color: var(--accent);
}

/* ── LIBRARY PAGE LAYOUT ────────────────────────────────────────────────────── */
.lib-hero {
  max-width: 1152px;
  margin: 0 auto;
  padding: 64px 24px 48px;
}
.lib-hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.lib-hero h1 {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.15;
}
.lib-hero p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 52ch;
  line-height: 1.6;
}

/* Controls bar */
.lib-controls {
  max-width: 1152px;
  margin: 0 auto 28px;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.lib-search-wrap {
  position: relative;
  max-width: 360px;
  z-index: 10;
}
.lib-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
.lib-search-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px 8px 34px;
  font-size: 13px;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  transition: border-color var(--ease);
}
.lib-search-input::placeholder { color: var(--text-muted); }
.lib-search-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.10); }
.lib-pills { flex-wrap: wrap; }

/* Category jump nav */
.lib-jump-nav {
  max-width: 1152px;
  margin: 0 auto 40px;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.lib-jump-link {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}
.lib-jump-link:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--surface);
}

/* Library content + category sections */
.lib-content {
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 24px 80px;
}
.lib-category { margin-bottom: 56px; }
.lib-cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.lib-cat-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.lib-cat-count {
  font-size: 12px;
  color: var(--text-muted);
}
.lib-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

/* Library card extensions */
.lib-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  min-height: 140px;
}
.lib-card-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
  flex-wrap: wrap;
}
.lib-components {
  font-size: 11px;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  margin: 0 0 6px;
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.lib-view-btn {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  transition: color var(--ease);
}
.lib-card:hover .lib-view-btn { color: var(--accent-hover); }

/* Responsive adjustments */
@media (max-width: 768px) {
  .lib-hero { padding: 48px 20px 36px; }
  .lib-controls { padding: 0 20px; }
  .lib-content { padding: 0 20px 60px; }
}
@media (max-width: 600px) {
  .lib-hero { padding: 36px 16px 28px; }
  .lib-controls { padding: 0 16px; }
  .lib-content { padding: 0 16px 48px; }
  .lib-search-wrap { max-width: 100%; }
  .lib-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .peptides-nav-card:hover .peptides-nav-arrow { transform: none; }
}