/* ==========================================================================
   TeaVerse — Global Tea Encyclopedia & Brewing Guide
   Master Editorial Design System & Styling
   Inspired by Botanical Luxury & Natural Earth Tones
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Playfair+Display:ital,wght@0,500;0,600;0,700;1,400;1,600&display=swap');

/* --- Root Color Tokens & Design System --- */
:root {
  /* Brand Palette from Reference */
  --color-sage: #A3A58B;
  --color-sage-light: #C2C4B0;
  --color-sage-dark: #7A7C64;
  --color-beige: #D6CFBC;
  --color-beige-light: #EBE5D8;
  --color-cream: #F4F0E6;
  --color-canvas: #F8F5ED;
  --color-charcoal: #292A24;
  --color-charcoal-light: #4A4B42;
  --color-olive: #777A61;
  --color-olive-dark: #585B44;
  --color-amber: #C68B45;
  --color-terracotta: #B85D3B;
  
  /* Functional UI Colors */
  --bg-primary: var(--color-canvas);
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #FAF7F0;
  --bg-muted: var(--color-cream);
  --bg-accent: var(--color-beige-light);
  
  --text-primary: var(--color-charcoal);
  --text-secondary: #5E6054;
  --text-muted: #8E9182;
  --text-inverse: #F8F5ED;
  
  --border-subtle: rgba(119, 122, 97, 0.15);
  --border-medium: rgba(119, 122, 97, 0.30);
  --border-focus: var(--color-olive);
  
  /* Typography Hierarchy */
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-display: 'Playfair Display', 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Elevation & Shadows */
  --shadow-sm: 0 2px 8px rgba(41, 42, 36, 0.04);
  --shadow-md: 0 8px 24px rgba(41, 42, 36, 0.06);
  --shadow-lg: 0 16px 40px rgba(41, 42, 36, 0.09);
  --shadow-glow: 0 0 25px rgba(163, 165, 139, 0.35);
  
  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Layout */
  --container-max: 1280px;
  --header-height: 84px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

body {
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
}

/* Subtle botanical paper background grain */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(rgba(119, 122, 97, 0.04) 1px, transparent 0);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: -1;
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

button {
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* --- Typography Utilities --- */
.font-serif { font-family: var(--font-serif); }
.font-display { font-family: var(--font-display); }
.font-sans { font-family: var(--font-sans); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-charcoal);
  letter-spacing: -0.01em;
}

.label-caps {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-olive);
}

/* --- Container & Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 40px;
  }
}

.section {
  padding: 80px 0;
}

@media (min-width: 992px) {
  .section {
    padding: 110px 0;
  }
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px auto;
}

.section-header .section-title {
  font-size: 2.5rem;
  margin: 12px 0 16px 0;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .section-header .section-title {
    font-size: 3.2rem;
  }
}

.section-header .section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Header & Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(248, 245, 237, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  background: rgba(248, 245, 237, 0.96);
  box-shadow: var(--shadow-sm);
  height: 72px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.brand-logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-charcoal);
  line-height: 1.05;
}

.brand-tagline-mini {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-olive);
}

/* Navigation Links */
.nav-menu {
  display: none;
  align-items: center;
  gap: 32px;
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex;
  }
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
  position: relative;
}

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

.nav-link.active::after, .nav-link:hover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-olive);
  border-radius: var(--radius-full);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-cream);
  border: 1px solid var(--border-subtle);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.btn-header-search:hover {
  background: var(--color-beige-light);
  border-color: var(--border-medium);
  color: var(--color-charcoal);
}

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--color-charcoal);
}

@media (min-width: 992px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* --- Mobile Drawer --- */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 82%;
  max-width: 380px;
  height: 100vh;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  z-index: 1100;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right var(--transition-normal);
}

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

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(41, 42, 36, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.drawer-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-charcoal);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-charcoal);
  color: var(--color-canvas);
  border: 1px solid var(--color-charcoal);
}

.btn-primary:hover {
  background-color: var(--color-olive-dark);
  border-color: var(--color-olive-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-charcoal);
  border: 1.5px solid var(--color-charcoal);
}

.btn-secondary:hover {
  background-color: var(--color-charcoal);
  color: var(--color-canvas);
  transform: translateY(-2px);
}

.btn-accent {
  background-color: var(--color-olive);
  color: #FFFFFF;
}

.btn-accent:hover {
  background-color: var(--color-olive-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

/* --- Hero Section --- */
.hero-section {
  position: relative;
  padding: 40px 0 80px 0;
  overflow: hidden;
}

@media (min-width: 992px) {
  .hero-section {
    padding: 60px 0 100px 0;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 60px;
  }
}

.hero-content {
  max-width: 620px;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--color-cream);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-olive-dark);
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-charcoal);
  margin-bottom: 24px;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 4.2rem;
  }
}

@media (min-width: 1200px) {
  .hero-title {
    font-size: 4.8rem;
  }
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats-row {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.hero-stat-item .stat-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-charcoal);
  line-height: 1;
}

.hero-stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hero Media Frame */
.hero-media-wrapper {
  position: relative;
}

.hero-card-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-subtle);
  background: var(--color-cream);
  aspect-ratio: 4 / 4.8;
}

.hero-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-card-frame:hover .hero-card-img {
  transform: scale(1.03);
}

.hero-floating-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(248, 245, 237, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
}

.floating-badge-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-charcoal);
}

.floating-badge-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- Classification Banner --- */
.classification-banner {
  background: var(--color-cream);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 48px 0;
}

.classification-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 768px) {
  .classification-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.classification-box {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: all var(--transition-normal);
}

.classification-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-sage);
}

.classification-box.true-tea {
  border-left: 4px solid var(--color-olive);
}

.classification-box.herbal-tisane {
  border-left: 4px solid var(--color-amber);
}

.classification-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-charcoal);
}

.classification-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.classification-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.pill-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--color-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-olive-dark);
}

/* --- Category Exploration Carousel / Grid --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-sage);
}

.category-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.category-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-olive-dark);
}

.category-count {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

.category-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--color-charcoal);
}

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

/* --- Mood Selector Section --- */
.mood-selector-container {
  background: var(--color-cream);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  border: 1px solid var(--border-subtle);
  margin-bottom: 48px;
  text-align: center;
}

.mood-chips-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.mood-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.mood-chip:hover, .mood-chip.active {
  background: var(--color-charcoal);
  color: var(--color-canvas);
  border-color: var(--color-charcoal);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-charcoal);
  color: var(--color-cream);
  padding: 80px 0 40px 0;
  margin-top: 80px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-brand .brand-name {
  color: var(--color-canvas);
  font-size: 2rem;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.95rem;
  color: var(--color-sage-light);
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-sage);
  margin-bottom: 20px;
}

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

.footer-link {
  font-size: 0.9rem;
  color: var(--color-beige);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--color-sage-light);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

.footer-notice {
  font-size: 0.78rem;
  color: var(--text-muted);
}