/* =============================================
   CHA THAI RESTAURANT - MAIN CSS
   Design System: Thai Gold & Elegance
   ============================================= */

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

/* =============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================= */
:root {
  /* Brand Colors */
  --gold-100: #fef9ee;
  --gold-200: #fdf0cc;
  --gold-300: #f9d97a;
  --gold-400: #f5c03a;
  --gold-500: #c8960c;
  --gold-600: #a67c00;
  --gold-700: #8B6914;
  --gold-800: #6b4f10;
  --gold-900: #3d2c05;

  --brown-100: #f9f3e8;
  --brown-200: #eddfc2;
  --brown-500: #9C6B2E;
  --brown-700: #6b4226;
  --brown-900: #2d1a0a;

  /* Light Mode */
  --bg-primary: #fffdf8;
  --bg-secondary: #fdf5e8;
  --bg-card: #ffffff;
  --bg-overlay: rgba(255, 253, 248, 0.95);
  --text-primary: #1a0f00;
  --text-secondary: #5c3d1e;
  --text-muted: #9c7a55;
  --border-color: #e8d5b0;
  --shadow-color: rgba(139, 105, 20, 0.12);
  --nav-bg: rgba(255, 253, 248, 0.95);

  /* Accent */
  --accent: #c8960c;
  --accent-hover: #a67c00;
  --accent-light: #fdf0cc;

  /* UI */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;
  --radius-full: 9999px;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-thai: 'Noto Sans Thai', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px var(--shadow-color), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px var(--shadow-color), 0 2px 6px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(139, 105, 20, 0.15), 0 4px 16px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(139, 105, 20, 0.2), 0 8px 24px rgba(0,0,0,0.12);
  --shadow-gold: 0 0 20px rgba(200, 150, 12, 0.3);

  --navbar-height: 72px;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-primary: #0f0a03;
  --bg-secondary: #1a1105;
  --bg-card: #1e1608;
  --bg-overlay: rgba(15, 10, 3, 0.95);
  --text-primary: #fef9ee;
  --text-secondary: #e8c97a;
  --text-muted: #a08050;
  --border-color: #3d2c10;
  --shadow-color: rgba(200, 150, 12, 0.08);
  --nav-bg: rgba(15, 10, 3, 0.97);
  --accent-light: rgba(200, 150, 12, 0.15);
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-hover); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; outline: none; }
input, textarea, select { font-family: inherit; outline: none; }

/* =============================================
   TYPOGRAPHY
   ============================================= */
.font-display { font-family: var(--font-display); }
.font-thai { font-family: var(--font-thai); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--text-primary);
}

.display-1 { font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 700; }
.display-2 { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 600; }
.heading-1 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 600; }
.heading-2 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 600; }
.heading-3 { font-size: 1.25rem; font-weight: 600; }
.body-lg { font-size: 1.125rem; line-height: 1.7; }
.body-md { font-size: 1rem; line-height: 1.6; }
.body-sm { font-size: 0.875rem; line-height: 1.5; }
.caption { font-size: 0.75rem; letter-spacing: 0.05em; }

.text-gradient {
  background: linear-gradient(135deg, var(--gold-600), var(--gold-400), var(--gold-600));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

/* =============================================
   LAYOUT
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-3xl) 0;
}

.section-sm {
  padding: var(--space-2xl) 0;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* =============================================
   SECTION HEADER
   ============================================= */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
  padding: 4px 16px;
  background: var(--accent-light);
  border-radius: var(--radius-full);
  border: 1px solid rgba(200, 150, 12, 0.3);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.section-desc {
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
  margin: var(--space-md) auto;
  border-radius: var(--radius-full);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-height);
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-xl);
  max-width: 1400px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.nav-logo img {
  height: 48px;
  width: auto;
  transition: transform var(--transition-base);
}

.nav-logo:hover img {
  transform: scale(1.05);
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold-600);
}

.nav-logo-tagline {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
  background: var(--accent-light);
}

.nav-link:hover::after, .nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Language Selector */
.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.lang-btn .flag { font-size: 1rem; }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: 100;
}

.lang-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lang-option:hover, .lang-option.active {
  background: var(--accent-light);
  color: var(--accent);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.theme-toggle:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  transform: rotate(20deg);
}

/* Book CTA in navbar */
.nav-cta {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-base);
  box-shadow: 0 2px 10px rgba(200, 150, 12, 0.3);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(200, 150, 12, 0.4);
  color: white;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  padding: 4px;
}

.nav-hamburger:hover { background: var(--accent-light); }

.hamburger-line {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open .hamburger-line:nth-child(2) { opacity: 0; }
.nav-hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
.nav-mobile {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 999;
}

.nav-mobile.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: white;
  box-shadow: 0 4px 16px rgba(200, 150, 12, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 150, 12, 0.4);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-secondary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.6);
  color: white;
}

.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-icon { padding: 10px; width: 42px; height: 42px; border-radius: var(--radius-full); }

/* =============================================
   CARDS
   ============================================= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(200, 150, 12, 0.3);
}

/* Menu Card */
.menu-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.menu-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--gold-400);
}

.menu-card-img {
  position: relative;
  padding-top: 65%;
  overflow: hidden;
  background: var(--bg-secondary);
}

.menu-card-img img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.menu-card:hover .menu-card-img img {
  transform: scale(1.08);
}

.menu-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 6px;
}

.badge {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-featured {
  background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
  color: white;
}

.badge-bestseller {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: white;
}

.badge-savory { background: #e8f4e8; color: #2d7a2d; }
.badge-dessert { background: #fce4ec; color: #c2185b; }
.badge-drink { background: #e3f2fd; color: #1565c0; }

.menu-card-body {
  padding: var(--space-md) var(--space-lg);
}

.menu-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.menu-card-desc {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.menu-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-sm);
}

.menu-card-price {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
}

.menu-card-price span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-weight: 400;
}

.star-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
}

.stars { color: var(--gold-400); letter-spacing: -2px; }
.rating-count { color: var(--text-muted); font-size: 0.75rem; }

/* =============================================
   FORMS
   ============================================= */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(200, 150, 12, 0.1);
}

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

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23c8960c' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

/* Star input */
.star-input {
  display: flex;
  gap: 6px;
  margin-bottom: var(--space-md);
}

.star-input label {
  font-size: 2rem;
  color: var(--border-color);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.star-input input { display: none; }
.star-input label:hover,
.star-input label.selected,
.star-input input:checked ~ label { color: var(--gold-400); }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--navbar-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15, 10, 3, 0.82) 0%,
    rgba(30, 20, 5, 0.65) 50%,
    rgba(15, 10, 3, 0.5) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(200, 150, 12, 0.15);
  border: 1px solid rgba(200, 150, 12, 0.4);
  border-radius: var(--radius-full);
  color: var(--gold-300);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  color: white;
  margin-bottom: var(--space-lg);
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-stats {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-stat {
  text-align: center;
  color: white;
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-300);
  display: block;
}

.hero-stat-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.2);
}

/* =============================================
   SCROLL REVEAL ANIMATIONS
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.revealed, .reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* =============================================
   FLOATING PARTICLES
   ============================================= */
.particles-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--gold-400);
  opacity: 0;
  animation: float-particle var(--duration, 8s) ease-in-out infinite var(--delay, 0s);
}

@keyframes float-particle {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 0.6; }
  90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--brown-900);
  color: rgba(255, 255, 255, 0.85);
  padding: var(--space-3xl) 0 0;
}

[data-theme="dark"] .footer {
  background: #050300;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.footer-brand img { height: 60px; margin-bottom: var(--space-md); }

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  border: 1px solid rgba(255,255,255,0.1);
}

.social-btn:hover {
  background: var(--gold-500);
  color: white;
  border-color: var(--gold-500);
  transform: translateY(-2px);
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--gold-300);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--gold-300);
}

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}

.footer-contact-item .icon { color: var(--gold-400); font-size: 1rem; flex-shrink: 0; margin-top: 2px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: var(--space-lg) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* =============================================
   MODAL
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-xl);
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--space-xl) var(--space-xl) 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.modal-close:hover { background: rgba(231, 76, 60, 0.1); color: #e74c3c; }

.modal-body { padding: var(--space-lg) var(--space-xl); }
.modal-footer { padding: var(--space-md) var(--space-xl) var(--space-xl); }

/* =============================================
   TOAST NOTIFICATIONS
   ============================================= */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 360px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 500;
  transform: translateX(100%);
  opacity: 0;
  animation: slide-in-toast 0.4s forwards;
  border-left: 4px solid var(--accent);
}

.toast.success { border-left-color: #27ae60; }
.toast.error { border-left-color: #e74c3c; }
.toast.info { border-left-color: #3498db; }

.toast-icon { font-size: 1.2rem; }

@keyframes slide-in-toast {
  to { transform: translateX(0); opacity: 1; }
}

.toast.out {
  animation: slide-out-toast 0.3s forwards;
}

@keyframes slide-out-toast {
  to { transform: translateX(100%); opacity: 0; }
}

/* =============================================
   PAGE HERO (Sub pages)
   ============================================= */
.page-hero {
  padding: calc(var(--navbar-height) + var(--space-3xl)) 0 var(--space-3xl);
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(200, 150, 12, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -50%;
  right: -10%;
  width: 50%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(200, 150, 12, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero-content { position: relative; z-index: 1; }

/* =============================================
   BACK TO TOP
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-gold);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-base);
  z-index: 500;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover { transform: translateY(-4px); }

/* =============================================
   LOADING SPINNER
   ============================================= */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* =============================================
   FILTER TABS
   ============================================= */
.filter-tabs {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.filter-tab {
  padding: 10px 24px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.filter-tab.active {
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(200, 150, 12, 0.3);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --navbar-height: 64px; }

  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .container { padding: 0 var(--space-md); }
  .container-wide { padding: 0 var(--space-md); }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }

  .hero-stats {
    gap: var(--space-xl);
    bottom: var(--space-lg);
  }

  .section { padding: var(--space-2xl) 0; }
  .section-sm { padding: var(--space-xl) 0; }

  .hero-title { font-size: clamp(2rem, 10vw, 3.5rem); }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  .filter-tabs { gap: 6px; }
  .filter-tab { padding: 8px 16px; font-size: 0.8rem; }
  .toast-container { left: var(--space-md); right: var(--space-md); }
}

/* =============================================
   UTILITY
   ============================================= */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.text-white { color: white; }
.w-full { width: 100%; }
.mx-auto { margin: 0 auto; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

.gold-bg {
  background: linear-gradient(135deg, var(--gold-100), var(--gold-200));
}

.dark-bg {
  background: linear-gradient(135deg, var(--brown-900), #1a0f00);
}

.glass {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .glass {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}