/* ==========================================================================
   OSTEOMOTION FLOW — EDITORIAL NUTRITION ATLAS
   Palette:
     --bg-cream: #F5F1E8
     --text-graphite: #202321
     --olive-dark: #46533E
     --terracotta: #B86B4B
     --soft-yellow: #D7B95C
     --gray-beige: #D8D2C5
     --white: #FFFFFF
   ========================================================================== */

:root {
  --bg-cream: #F5F1E8;
  --bg-card: #FFFFFF;
  --text-main: #202321;
  --text-muted: #59615B;
  --olive-dark: #46533E;
  --olive-light: #EEF2EC;
  --terracotta: #B86B4B;
  --terracotta-light: #F7EFEA;
  --soft-yellow: #D7B95C;
  --soft-yellow-light: #FCF8EB;
  --gray-beige: #D8D2C5;
  --border-light: #E3DCCF;
  --border-dark: #202321;
  
  --font-serif: "Newsreader", "Playfair Display", "Georgia", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  
  --shadow-subtle: 0 4px 20px rgba(32, 35, 33, 0.05);
  --shadow-hover: 0 10px 30px rgba(32, 35, 33, 0.09);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1240px;
}

/* Base & Typography */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-cream);
  color: var(--text-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  line-height: 1.65;
  color: var(--text-main);
  background-color: var(--bg-cream);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  word-break: normal;
  overflow-wrap: normal;
  hyphens: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Editorial Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(245, 241, 232, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: border-color var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-symbol {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  white-space: nowrap;
}

.brand-title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.12em;
  color: var(--text-main);
}

.brand-sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--olive-dark);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.25vw, 20px);
  flex-shrink: 1;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  padding: 6px 2px;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--terracotta);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background-color: var(--olive-dark);
  color: var(--bg-cream);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-header-cta:hover {
  background-color: var(--text-main);
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  justify-content: center;
  align-items: center;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  padding: 4px;
}

.nav-toggle:hover {
  background-color: rgba(32, 35, 33, 0.05);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-main);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Nav Drawer */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(32, 35, 33, 0.4);
  backdrop-filter: blur(4px);
  z-index: 150;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100%;
  background-color: var(--bg-cream);
  z-index: 160;
  box-shadow: -4px 0 24px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.mobile-nav-drawer.open {
  right: 0;
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav-close {
  font-size: 1.8rem;
  line-height: 1;
  color: var(--text-main);
  cursor: pointer;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-nav-links a {
  font-size: 1.05rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.mobile-nav-links a:hover, .mobile-nav-links a.active {
  color: var(--olive-dark);
}

/* Editorial Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 24px 0 12px;
}

.breadcrumbs a:hover {
  color: var(--text-main);
  text-decoration: underline;
}

.breadcrumbs span.separator {
  opacity: 0.5;
}

/* Editorial Hero Section (Index) */
.hero-editorial {
  padding: 40px 0 60px;
  border-bottom: 1px solid var(--border-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-atlas-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--olive-dark);
  margin-bottom: 24px;
}

.hero-atlas-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--terracotta);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-formula {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background-color: var(--gray-beige);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-main);
  margin-bottom: 36px;
  width: fit-content;
}

.hero-formula span.arrow {
  color: var(--terracotta);
}

.hero-actions {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--text-main);
  color: var(--bg-cream);
  padding: 14px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background-color: var(--olive-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(70, 83, 62, 0.25);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--text-main);
  padding: 14px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background-color: var(--text-main);
  color: var(--bg-cream);
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  border: 1px solid var(--border-light);
  background-color: #FAF7F2;
}

.hero-visual img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.hero-visual:hover img {
  transform: scale(1.02);
}

/* Floating labels on hero image */
.photo-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.labels-top, .labels-bottom {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.photo-tag {
  background: rgba(32, 35, 33, 0.85);
  backdrop-filter: blur(6px);
  color: var(--bg-cream);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.15);
}

.photo-tag.accent {
  background: rgba(184, 107, 75, 0.9);
}

.photo-tag.olive {
  background: rgba(70, 83, 62, 0.9);
}

.photo-tag.yellow {
  background: rgba(215, 185, 92, 0.95);
  color: var(--text-main);
}

/* Section Common Styling */
.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  margin-bottom: 48px;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--olive-dark);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 680px;
  margin-top: 14px;
}

/* Explore Atlas Grid (01 to 05) */
.atlas-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.atlas-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 240px;
  position: relative;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.atlas-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--gray-beige);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  transition: background-color var(--transition-fast);
}

.atlas-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-dark);
}

.atlas-card:hover::before {
  background-color: var(--terracotta);
}

.card-num {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 16px 0 10px;
  line-height: 1.2;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.card-link-text {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--olive-dark);
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Vitamin Index Vertical Section */
.vitamin-index-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-subtle);
}

.vitamin-nav-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-right: 1px solid var(--border-light);
  padding-right: 28px;
}

.vitamin-nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: left;
  transition: all var(--transition-fast);
}

.vitamin-nav-btn .letter-badge {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--gray-beige);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.9rem;
}

.vitamin-nav-btn:hover {
  background-color: var(--bg-cream);
  color: var(--text-main);
}

.vitamin-nav-btn.active {
  background-color: var(--olive-dark);
  color: var(--bg-cream);
}

.vitamin-nav-btn.active .letter-badge {
  background-color: var(--soft-yellow);
  color: var(--text-main);
}

.vitamin-detail-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.vitamin-badge-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background-color: var(--olive-light);
  color: var(--olive-dark);
}

.vitamin-detail-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-main);
}

.vitamin-detail-role {
  font-size: 1.05rem;
  color: var(--text-main);
  line-height: 1.6;
}

.vitamin-data-box {
  background: var(--bg-cream);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  border-left: 3px solid var(--terracotta);
}

.data-box-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--terracotta);
  margin-bottom: 6px;
}

.food-source-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.source-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Interactive Nutrient Finder (FIND IT IN FOOD) */
.nutrient-finder-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-subtle);
}

.finder-selector-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.finder-chip {
  padding: 10px 18px;
  border-radius: 24px;
  border: 1px solid var(--border-light);
  background: var(--bg-cream);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.finder-chip:hover {
  border-color: var(--olive-dark);
  color: var(--text-main);
}

.finder-chip.active {
  background: var(--olive-dark);
  border-color: var(--olive-dark);
  color: #FFFFFF;
}

.finder-results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.finder-food-card {
  background: var(--bg-cream);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.finder-food-card:hover {
  transform: translateY(-3px);
  border-color: var(--terracotta);
}

.finder-food-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.finder-food-info {
  padding: 16px;
}

.finder-food-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.finder-food-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Compare Foods Section */
.comparison-container {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 36px;
}

.comparison-pickers {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}

.picker-select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg-cream);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  outline: none;
}

.picker-select:focus {
  border-color: var(--olive-dark);
}

.picker-vs {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.6rem;
  color: var(--terracotta);
  font-weight: 600;
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.comparison-table th, .comparison-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  background-color: var(--bg-cream);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.comparison-table tr:hover td {
  background-color: #FAF7F2;
}

.comparison-metric {
  font-weight: 700;
  color: var(--text-main);
  width: 28%;
}

.comparison-diff-note {
  font-size: 0.82rem;
  color: var(--olive-dark);
  font-style: italic;
  margin-top: 4px;
}

/* 7-Day Food Flow Interactive Routine */
.flow-days-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: 28px;
}

.flow-day-btn {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.flow-day-btn.active {
  background: var(--terracotta);
  color: #fff;
  border-color: var(--terracotta);
}

.flow-day-content {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 36px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.flow-pillar {
  padding: 20px;
  background: var(--bg-cream);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
}

.pillar-icon {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--olive-dark);
  margin-bottom: 12px;
}

.pillar-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.pillar-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Editorial Articles & Guides Grid */
.articles-editorial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.article-card-editorial {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.article-card-editorial:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--olive-dark);
}

.article-card-body {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.article-card-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 12px;
}

.article-card-summary {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-read-more {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--terracotta);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* FAQ Accordion */
.faq-filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.faq-tab-btn {
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.faq-tab-btn.active, .faq-tab-btn:hover {
  background: var(--olive-dark);
  color: #fff;
  border-color: var(--olive-dark);
}

.faq-accordion-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--gray-beige);
}

.faq-question-btn {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  background: none;
}

.faq-icon-arrow {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon-arrow {
  transform: rotate(180deg);
}

.faq-answer-panel {
  display: none;
  padding: 0 24px 22px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  border-top: 1px solid #FAF7F2;
}

.faq-item.active .faq-answer-panel {
  display: block;
}

/* Editorial Disclaimer Box */
.site-disclaimer-box {
  background-color: #EFE9DC;
  border-left: 4px solid var(--olive-dark);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 40px 0;
}

.site-disclaimer-box strong {
  color: var(--text-main);
  font-weight: 700;
}

/* Footer */
.site-footer {
  background-color: var(--text-main);
  color: var(--bg-cream);
  margin-top: auto;
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(245, 241, 232, 0.7);
  margin-top: 16px;
  max-width: 360px;
}

.footer-col-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--soft-yellow);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(245, 241, 232, 0.75);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(245, 241, 232, 0.55);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a:hover {
  color: var(--soft-yellow);
}

/* Article Page Typography */
.article-detail-header {
  padding: 40px 0 30px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 40px;
}

.article-category-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--terracotta);
  margin-bottom: 16px;
}

.article-main-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 500;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 20px;
  max-width: 900px;
}

.article-meta-bar {
  display: flex;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.article-body-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 60px;
  margin-bottom: 60px;
}

.article-prose {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #2b302c;
}

.article-prose p {
  margin-bottom: 24px;
}

.article-prose p.lead-text {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--text-main);
  font-weight: 400;
  border-left: 3px solid var(--olive-dark);
  padding-left: 20px;
  margin-bottom: 32px;
}

.article-prose h2 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 600;
  margin: 44px 0 18px;
  color: var(--text-main);
}

.article-prose h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 32px 0 14px;
  color: var(--text-main);
}

.article-prose ul, .article-prose ol {
  margin: 0 0 28px 28px;
}

.article-prose li {
  margin-bottom: 10px;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.sidebar-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
}

.sidebar-box-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--olive-dark);
  margin-bottom: 16px;
}

/* Contact Form Styling */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-main);
}

.form-control {
  padding: 14px 18px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: #FFF;
  font-size: 1rem;
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--olive-dark);
}

@media (max-width: 1024px) {
  .nav-desktop {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .mobile-nav-overlay.open {
    display: block;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual img {
    height: 420px;
  }
  .atlas-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .vitamin-index-grid {
    grid-template-columns: 1fr;
  }
  .vitamin-nav-col {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    padding-right: 0;
    padding-bottom: 20px;
    flex-direction: row;
    overflow-x: auto;
  }
  .vitamin-nav-btn {
    white-space: nowrap;
  }
  .finder-results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow-day-content {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-editorial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .article-body-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .btn-header-cta {
    display: none;
  }
  .section {
    padding: 56px 0;
  }
  .atlas-grid {
    grid-template-columns: 1fr;
  }
  .finder-results-grid {
    grid-template-columns: 1fr;
  }
  .comparison-pickers {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .picker-vs {
    margin: 8px 0;
  }
  .flow-day-content {
    grid-template-columns: 1fr;
  }
  .articles-editorial-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-visual img {
    height: 300px;
  }
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
  .hero-formula {
    font-size: 0.72rem;
    padding: 10px 14px;
    gap: 8px;
  }
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
  }
}