:root {
  --color-bg: #0d0d0d;
  --color-bg-elevated: #161616;
  --color-bg-card: #1a1a1a;
  --color-border: #2a2a2a;
  --color-border-light: #333;
  --color-text: #f5f5f5;
  --color-text-muted: #a0a0a0;
  --color-text-subtle: #666;
  --color-primary: #d4a843;
  --color-primary-hover: #e8c060;
  --color-primary-light: rgba(212, 168, 67, 0.15);
  --color-accent: #c8963a;
  --color-success: #2e7d32;
  --color-error: #c62828;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: 150ms ease;
  --container-max: 1200px;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

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

.section-header h2 {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 18px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(13, 13, 13, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.01em;
}

.logo-icon { width: 28px; height: 28px; flex-shrink: 0; }

.nav { display: flex; gap: 8px; }

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover, .nav-link:focus {
  color: var(--color-text);
  background: var(--color-bg-card);
}

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

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #0d0d0d;
}

.btn-primary:hover, .btn-primary:focus {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-lg { padding: 16px 32px; font-size: 17px; }

.btn-full { width: 100%; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Hero */
.hero {
  padding: 80px 0 100px;
  text-align: center;
}

.hero-content { max-width: 720px; margin: 0 auto; }

.hero h1 {
  font-size: clamp(36px, 7vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.hero-tagline {
  font-size: clamp(18px, 3vw, 22px);
  color: var(--color-text-muted);
  margin-bottom: 32px;
  line-height: 1.5;
}

.hero-pricing {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.price-highlight {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-primary);
}

.hero-trust {
  display: flex;
  justify-content: center;
  gap: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
}

.trust-item svg { width: 24px; height: 24px; color: var(--color-primary); }

/* Menu */
.menu { padding: 80px 0; }

.category-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 24px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text-muted);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.tab-btn:hover, .tab-btn:focus {
  color: var(--color-text);
  border-color: var(--color-border-light);
}

.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #0d0d0d;
}

.tab-panel { display: none; }

.tab-panel.active { display: block; animation: fadeIn 200ms ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-light);
}

.product-image {
  aspect-ratio: 4/3;
  background: var(--color-bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  font-size: 14px;
}

.product-image svg { width: 48px; height: 48px; }

.product-body { padding: 20px; }

.product-name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }

.product-type { font-size: 13px; color: var(--color-text-muted); margin-bottom: 12px; }

.product-pricing { display: flex; flex-wrap: wrap; gap: 8px; }

.price-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
}

.price-tag .amount { color: var(--color-primary); font-weight: 700; margin-right: 4px; }

/* About */
.about { padding: 80px 0; background: var(--color-bg-elevated); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }

.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }

.about-text p { color: var(--color-text-muted); margin-bottom: 16px; line-height: 1.7; }

.about-features {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.about-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
}

.about-features li::before {
  content: "";
  width: 20px; height: 20px;
  background: var(--color-primary);
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  mask-size: contain;
  flex-shrink: 0;
}

.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.stat { text-align: center; padding: 32px 24px; background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }

.stat-value { display: block; font-size: 40px; font-weight: 700; color: var(--color-primary); line-height: 1; letter-spacing: -0.02em; }

.stat-label { display: block; margin-top: 8px; font-size: 14px; color: var(--color-text-muted); font-weight: 500; }

/* Contact */
.contact { padding: 80px 0; }

.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; }

.contact-info { display: flex; flex-direction: column; gap: 24px; }

.contact-item { display: flex; gap: 16px; }

.contact-item svg { width: 24px; height: 24px; color: var(--color-primary); flex-shrink: 0; margin-top: 2px; }

.contact-item h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }

.contact-item p { color: var(--color-text-muted); font-size: 15px; margin: 0; }

.contact-item a { color: var(--color-primary); transition: color var(--transition); }

.contact-item a:hover { color: var(--color-primary-hover); }

.order-form { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 32px; }

.form-group { margin-bottom: 20px; }

.form-group label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 8px; color: var(--color-text); }

.form-group input, .form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: inherit;
  font-size: 15px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input::placeholder, .form-group textarea::placeholder { color: var(--color-text-subtle); }

.form-group textarea { min-height: 100px; resize: vertical; }

.form-disclaimer { margin-top: 16px; font-size: 13px; color: var(--color-text-subtle); text-align: center; }

/* Footer */
.footer { padding: 60px 0 24px; background: var(--color-bg-elevated); border-top: 1px solid var(--color-border); }

.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }

.footer-brand p { color: var(--color-text-muted); margin-top: 12px; font-size: 14px; max-width: 280px; }

.footer-links h4, .footer-legal h4 { font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); margin-bottom: 16px; }

.footer-links nav { display: flex; flex-direction: column; gap: 10px; }

.footer-links a { color: var(--color-text-muted); font-size: 14px; transition: color var(--transition); }

.footer-links a:hover { color: var(--color-primary); }

.footer-legal p { color: var(--color-text-subtle); font-size: 13px; line-height: 1.7; margin-bottom: 8px; }

.footer-bottom { padding-top: 24px; border-top: 1px solid var(--color-border); text-align: center; color: var(--color-text-subtle); font-size: 13px; }

/* Responsive */
@media (max-width: 900px) {
  .about-content { grid-template-columns: 1fr; gap: 40px; }
  .about-stats { grid-template-columns: repeat(4, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .footer-brand p { max-width: none; }
  .footer-brand { display: flex; flex-direction: column; align-items: center; }
  .about-features { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .header { height: auto; padding: 16px 0; }
  .header .container { flex-wrap: wrap; gap: 16px; }
  .nav { order: 3; width: 100%; justify-content: center; }
  .hero { padding: 60px 0 80px; }
  .hero-trust { gap: 24px; }
  .menu { padding: 60px 0; }
  .category-tabs { gap: 6px; }
  .tab-btn { padding: 10px 18px; font-size: 13px; }
  .product-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 32px; }
  .order-form { padding: 24px; }
}

/* Toast notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: slideIn 300ms ease;
  max-width: 360px;
}

.toast.success { border-color: var(--color-success); }
.toast.error { border-color: var(--color-error); }

@keyframes slideIn { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: none; } }

.toast svg { width: 20px; height: 20px; flex-shrink: 0; }
.toast.success svg { color: var(--color-success); }
.toast.error svg { color: var(--color-error); }
.toast-message { flex: 1; font-size: 14px; }
.toast-close { color: var(--color-text-muted); padding: 4px; }