:root {
  --bg-primary: #090a0f;
  --bg-secondary: #12141d;
  --bg-tertiary: #1b1e2b;
  --text-main: #ffffff;
  --text-muted: #94a3b8;
  --text-dark: #0f172a;
  --accent-gold: #f59e0b;
  --accent-gold-hover: #d97706;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-blue: #3b82f6;
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-bg-hover: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease;
}

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

/* Base Layout & Containers */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.grid { display: grid; }
.text-center { text-align: center; }

/* Glassmorphism Utilities */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.glass-panel:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(245, 158, 11, 0.3);
  transform: translateY(-3px);
}

/* Header & Sticky Nav */
.sticky-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(9, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 16px 0;
}

[data-theme="light"] .sticky-header {
  background: rgba(248, 250, 252, 0.85);
}

.brand-logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 0%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

[data-theme="light"] .brand-logo {
  background: linear-gradient(135deg, #0f172a 0%, var(--accent-gold-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Search Bar */
.search-container {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.search-input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 99px;
  padding: 12px 20px 12px 44px;
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-hover));
  color: #000000;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-bg-hover);
  border-color: var(--text-muted);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 80px 0 60px;
  text-align: center;
  overflow: hidden;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 40px;
}

/* Catalog Grids */
.grid-catalog {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.coupon-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  position: relative;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-gold { background: var(--accent-gold); color: #000; }
.badge-emerald { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); border: 1px solid var(--accent-emerald); }
.badge-rose { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); border: 1px solid var(--accent-rose); }

.brand-img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  background: #ffffff;
  padding: 6px;
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 16px 0;
}

.price-offer {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.price-orig {
  font-size: 1rem;
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Live Countdown Box */
.countdown-timer {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--accent-gold);
  width: fit-content;
  margin-bottom: 16px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 32px;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Form Elements */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-control {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-main);
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-gold);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title { font-size: 2.25rem; }
  .grid-catalog { grid-template-columns: 1fr; }
  .sticky-header .search-container { display: none; }
}