/* ============================================================
   RMP Tech — Design System v2.0
   Premium dark theme + E-commerce catalog + Cart
   ============================================================ */

:root {
  --bg-primary: #0a0b0f;
  --bg-secondary: #12131a;
  --bg-tertiary: #1a1b26;
  --bg-card: rgba(26, 27, 38, 0.7);
  --bg-card-hover: rgba(35, 37, 52, 0.8);
  --text-primary: #f0f0f5;
  --text-secondary: #a0a3b8;
  --text-muted: #6b6f85;
  --accent-1: #6c5ce7;
  --accent-2: #00d2ff;
  --accent-3: #a855f7;
  --gradient-primary: linear-gradient(135deg, #6c5ce7, #00d2ff);
  --gradient-accent: linear-gradient(135deg, #a855f7, #6c5ce7);
  --gradient-glow: linear-gradient(135deg, rgba(108, 92, 231, 0.4), rgba(0, 210, 255, 0.4));
  --whatsapp: #25d366;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --border-color: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(108, 92, 231, 0.3);
  --section-padding: 100px 0;
  --container-max: 1200px;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --shadow-glow: 0 0 40px rgba(108, 92, 231, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

/* --- Particles --- */
.bg-particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.particle { position: absolute; width: 2px; height: 2px; background: var(--accent-1); border-radius: 50%; opacity: 0; animation: particleFloat 8s infinite; }
@keyframes particleFloat {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  20% { opacity: 0.6; }
  80% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* --- Navbar --- */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 12px 0; transition: var(--transition); background: transparent; }
.navbar.scrolled { background: rgba(10, 11, 15, 0.9); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-color); padding: 8px 0; }
.nav-container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 16px; }
.nav-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; flex-shrink: 0; }
.logo-icon { font-size: 1.5rem; filter: drop-shadow(0 0 8px rgba(108, 92, 231, 0.5)); }
.logo-text { color: var(--text-primary); }
.logo-accent { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Search Bar */
.search-bar { flex: 1; max-width: 480px; position: relative; }
.search-bar input {
  width: 100%; padding: 10px 16px 10px 42px; background: var(--bg-tertiary); border: 1px solid var(--border-color);
  border-radius: 100px; color: var(--text-primary); font-family: var(--font-primary); font-size: 0.9rem;
  transition: var(--transition); outline: none;
}
.search-bar input:focus { border-color: var(--accent-1); box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15); }
.search-bar input::placeholder { color: var(--text-muted); }
.search-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.search-results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; background: var(--bg-secondary);
  border: 1px solid var(--border-color); border-radius: var(--radius-md); max-height: 400px; overflow-y: auto;
  display: none; z-index: 100; box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.search-results.active { display: block; }
.search-result-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px; cursor: pointer;
  transition: var(--transition); border-bottom: 1px solid var(--border-color);
}
.search-result-item:hover { background: var(--bg-card-hover); }
.search-result-item img { width: 40px; height: 40px; object-fit: contain; border-radius: 6px; background: white; padding: 4px; }
.search-result-info { flex: 1; }
.search-result-info .name { font-size: 0.85rem; font-weight: 500; }
.search-result-info .price { font-size: 0.8rem; color: var(--accent-2); font-weight: 600; }

.nav-links { display: flex; gap: 24px; }
.nav-link { color: var(--text-secondary); text-decoration: none; font-size: 0.85rem; font-weight: 500; transition: var(--transition); position: relative; white-space: nowrap; }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--gradient-primary); transition: var(--transition); border-radius: 2px; }
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

/* Nav icon buttons */
.nav-icon-btn {
  position: relative; background: none; border: 1px solid var(--border-color); border-radius: var(--radius-sm);
  color: var(--text-secondary); cursor: pointer; padding: 8px; display: flex; align-items: center;
  justify-content: center; transition: var(--transition);
}
.nav-icon-btn:hover { color: var(--text-primary); border-color: var(--border-hover); background: rgba(108,92,231,0.08); }
.cart-badge {
  position: absolute; top: -6px; right: -6px; background: var(--accent-1); color: white; font-size: 0.65rem;
  font-weight: 700; min-width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center;
  justify-content: center; transition: var(--transition);
}
.cart-badge.has-items { background: var(--accent-2); animation: cartPop 0.3s ease; }
@keyframes cartPop { 50% { transform: scale(1.3); } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: var(--radius-sm);
  font-family: var(--font-primary); font-size: 0.9rem; font-weight: 600; text-decoration: none; cursor: pointer;
  border: none; transition: var(--transition); position: relative; overflow: hidden;
}
.btn-primary { background: var(--gradient-primary); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(108, 92, 231, 0.35); }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border-color); }
.btn-ghost:hover { color: var(--text-primary); border-color: var(--border-hover); background: rgba(108,92,231,0.08); }
.btn-whatsapp { background: var(--whatsapp); color: white; }
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(37, 211, 102, 0.35); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: var(--radius-md); }
.btn-glow::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%); opacity: 0; transition: opacity 0.3s; }
.btn-glow:hover::before { opacity: 1; }
.btn-nav-cta { padding: 8px 16px; font-size: 0.85rem; }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.mobile-toggle span { width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* --- Hero --- */
.hero { min-height: 100vh; display: flex; align-items: center; padding: 100px 24px 60px; max-width: var(--container-max); margin: 0 auto; gap: 60px; position: relative; z-index: 1; }
.hero-content { flex: 1; max-width: 620px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: rgba(108,92,231,0.1); border: 1px solid rgba(108,92,231,0.2); border-radius: 100px; font-size: 0.85rem; color: var(--accent-2); font-weight: 500; margin-bottom: 24px; animation: fadeInUp 0.8s ease; }
.badge-dot { width: 6px; height: 6px; background: var(--accent-2); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,210,255,0.4); } 50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(0,210,255,0); } }
.hero-title { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; margin-bottom: 18px; animation: fadeInUp 0.8s ease 0.1s both; }
.gradient-text { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1.1rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 28px; animation: fadeInUp 0.8s ease 0.2s both; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; animation: fadeInUp 0.8s ease 0.3s both; }
.hero-stats { display: flex; align-items: center; gap: 28px; animation: fadeInUp 0.8s ease 0.4s both; }
.stat { text-align: center; }
.stat-number { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; }
.stat-plus { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--accent-2); }
.stat-label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }
.stat-divider { width: 1px; height: 36px; background: var(--border-color); }

.hero-visual { flex: 1; position: relative; display: flex; align-items: center; justify-content: center; min-height: 350px; }
.hero-card { position: absolute; background: var(--bg-card); backdrop-filter: blur(12px); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 16px 24px; display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.9rem; z-index: 2; transition: var(--transition); }
.hero-card:nth-child(1) { top: 10%; left: 5%; }
.hero-card:nth-child(2) { top: 5%; right: 5%; }
.hero-card:nth-child(3) { bottom: 15%; left: 0%; }
.hero-card:nth-child(4) { bottom: 10%; right: 10%; }
.hero-card:hover { border-color: var(--border-hover); transform: translateY(-4px) scale(1.02); box-shadow: var(--shadow-glow); }
.card-icon { font-size: 1.6rem; }
.card-glow { position: absolute; inset: -1px; border-radius: var(--radius-lg); background: var(--gradient-glow); opacity: 0; transition: opacity 0.3s; z-index: -1; filter: blur(8px); }
.hero-card:hover .card-glow { opacity: 0.5; }
.floating { animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.orbit-ring { position: absolute; width: 300px; height: 300px; border: 1px solid rgba(108,92,231,0.08); border-radius: 50%; animation: spin 30s linear infinite; }
.orbit-ring-2 { width: 200px; height: 200px; border-color: rgba(0,210,255,0.06); animation-direction: reverse; animation-duration: 20s; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* --- Promo Banner --- */
.promo-banner { position: relative; z-index: 1; padding: 0; overflow: hidden; }
.promo-strip {
  display: flex; align-items: center; justify-content: center; gap: 40px; padding: 16px 24px;
  background: linear-gradient(90deg, var(--bg-tertiary), rgba(108,92,231,0.08), var(--bg-tertiary));
  border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}
.promo-item { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-secondary); white-space: nowrap; }
.promo-item strong { color: var(--accent-2); }
.promo-item svg { color: var(--accent-1); flex-shrink: 0; }

/* --- Section Headers --- */
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag { display: inline-block; font-size: 0.8rem; font-weight: 600; color: var(--accent-2); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.section-title { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 700; margin-bottom: 12px; }
.section-subtitle { font-size: 1rem; color: var(--text-secondary); }

/* --- Catalog --- */
.catalog { padding: var(--section-padding); position: relative; z-index: 1; }
.catalog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 32px; flex-wrap: wrap; }
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  padding: 8px 16px; border-radius: 100px; font-size: 0.8rem; font-weight: 500; cursor: pointer;
  background: var(--bg-tertiary); color: var(--text-secondary); border: 1px solid var(--border-color);
  transition: var(--transition); white-space: nowrap;
}
.chip:hover { border-color: var(--border-hover); color: var(--text-primary); }
.chip.active { background: var(--gradient-primary); color: white; border-color: transparent; }
.catalog-sort select {
  padding: 8px 16px; background: var(--bg-tertiary); border: 1px solid var(--border-color); border-radius: var(--radius-sm);
  color: var(--text-secondary); font-family: var(--font-primary); font-size: 0.85rem; cursor: pointer; outline: none;
}
.catalog-sort select:focus { border-color: var(--accent-1); }

/* Product Grid */
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.product-card {
  background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg);
  overflow: hidden; transition: var(--transition); cursor: pointer; position: relative;
}
.product-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.product-image {
  width: 100%; height: 200px; background: white; display: flex; align-items: center; justify-content: center;
  padding: 20px; position: relative; overflow: hidden;
}
.product-image img { max-width: 100%; max-height: 100%; object-fit: contain; transition: transform 0.4s; }
.product-card:hover .product-image img { transform: scale(1.08); }
.product-discount {
  position: absolute; top: 12px; left: 12px; background: var(--danger); color: white; font-size: 0.7rem;
  font-weight: 700; padding: 4px 8px; border-radius: 6px;
}
.product-stock {
  position: absolute; top: 12px; right: 12px; font-size: 0.7rem; font-weight: 600; padding: 4px 8px;
  border-radius: 6px; display: flex; align-items: center; gap: 4px;
}
.product-stock.in-stock { background: rgba(16,185,129,0.15); color: var(--success); }
.product-stock.low-stock { background: rgba(245,158,11,0.15); color: var(--warning); }
.product-info { padding: 16px; }
.product-brand { font-size: 0.75rem; color: var(--accent-2); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.product-name { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-specs { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-pricing { display: flex; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.product-price { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--text-primary); }
.product-original-price { font-size: 0.85rem; color: var(--text-muted); text-decoration: line-through; }
.product-rating { display: flex; align-items: center; gap: 4px; font-size: 0.8rem; color: var(--warning); margin-bottom: 12px; }
.product-actions { display: flex; gap: 8px; }
.product-actions .btn { flex: 1; justify-content: center; padding: 8px 12px; font-size: 0.8rem; }
.btn-add-cart { background: var(--gradient-primary); color: white; border: none; }
.btn-add-cart:hover { box-shadow: 0 4px 20px rgba(108,92,231,0.35); }
.btn-quick-wa { background: transparent; color: var(--whatsapp); border: 1px solid rgba(37,211,102,0.3); }
.btn-quick-wa:hover { background: rgba(37,211,102,0.1); }

.catalog-footer { text-align: center; margin-top: 40px; }
.catalog-note { color: var(--text-muted); font-size: 0.85rem; padding: 16px; background: var(--bg-tertiary); border-radius: var(--radius-md); display: inline-block; }

/* --- Features --- */
.features { padding: var(--section-padding); background: var(--bg-secondary); position: relative; z-index: 1; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card { text-align: center; padding: 36px 20px; border-radius: var(--radius-lg); transition: var(--transition); }
.feature-card:hover { background: var(--bg-card); }
.feature-icon-wrapper { width: 60px; height: 60px; margin: 0 auto 16px; border-radius: var(--radius-md); background: rgba(108,92,231,0.1); display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.feature-card:hover .feature-icon-wrapper { background: var(--gradient-glow); transform: scale(1.1); }
.feature-icon { font-size: 1.6rem; }
.feature-card h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.5; }

/* --- CTA --- */
.cta-section { padding: var(--section-padding); position: relative; z-index: 1; }
.cta-card { background: var(--bg-tertiary); border: 1px solid var(--border-color); border-radius: var(--radius-xl); padding: 56px; position: relative; overflow: hidden; }
.cta-content { position: relative; z-index: 2; max-width: 540px; }
.cta-content h2 { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; margin-bottom: 14px; }
.cta-content p { color: var(--text-secondary); font-size: 1rem; margin-bottom: 28px; line-height: 1.7; }
.cta-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-decoration { position: absolute; top: 0; right: 0; bottom: 0; width: 50%; }
.cta-circle { position: absolute; right: -60px; top: -60px; width: 300px; height: 300px; border-radius: 50%; background: var(--gradient-glow); filter: blur(80px); opacity: 0.3; }
.cta-circle-2 { right: 60px; top: auto; bottom: -100px; width: 220px; height: 220px; background: linear-gradient(135deg, rgba(0,210,255,0.2), rgba(168,85,247,0.2)); }

/* --- Footer --- */
.footer { padding: 40px 0 20px; border-top: 1px solid var(--border-color); position: relative; z-index: 1; }
.footer-content { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
.footer-brand { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.footer-brand p { width: 100%; color: var(--text-muted); font-size: 0.8rem; margin-top: 6px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-secondary); text-decoration: none; font-size: 0.85rem; transition: var(--transition); }
.footer-links a:hover { color: var(--text-primary); }
.footer-bottom { border-top: 1px solid var(--border-color); padding-top: 20px; text-align: center; }
.footer-bottom p { color: var(--text-muted); font-size: 0.75rem; }

/* --- Floating WhatsApp --- */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 24px; width: 56px; height: 56px; background: var(--whatsapp);
  border-radius: 50%; display: flex; align-items: center; justify-content: center; z-index: 999;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4); transition: var(--transition); text-decoration: none;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(37,211,102,0.5); }
.whatsapp-tooltip {
  position: absolute; right: 70px; top: 50%; transform: translateY(-50%); background: var(--bg-secondary);
  color: var(--text-primary); padding: 8px 16px; border-radius: var(--radius-sm); font-size: 0.8rem;
  font-weight: 500; white-space: nowrap; opacity: 0; transition: opacity 0.3s; pointer-events: none;
  border: 1px solid var(--border-color);
}
.whatsapp-float:hover .whatsapp-tooltip { opacity: 1; }

/* --- Cart Sidebar --- */
.cart-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 1100; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.cart-overlay.active { opacity: 1; pointer-events: all; }
.cart-sidebar {
  position: fixed; top: 0; right: -400px; width: 380px; max-width: 90vw; height: 100vh; background: var(--bg-secondary);
  border-left: 1px solid var(--border-color); z-index: 1200; display: flex; flex-direction: column; transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.cart-sidebar.active { right: 0; }
.cart-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--border-color); }
.cart-header h3 { font-family: var(--font-display); font-size: 1.1rem; }
.cart-close { background: none; border: none; color: var(--text-secondary); font-size: 1.6rem; cursor: pointer; transition: var(--transition); }
.cart-close:hover { color: var(--text-primary); }
.cart-body { flex: 1; overflow-y: auto; padding: 16px 24px; }
.cart-empty { text-align: center; padding: 60px 0; }
.cart-empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.5; }
.cart-empty p { color: var(--text-muted); margin-bottom: 20px; }
.cart-items { display: flex; flex-direction: column; gap: 12px; }
.cart-item {
  display: flex; gap: 12px; padding: 12px; background: var(--bg-tertiary); border-radius: var(--radius-md);
  border: 1px solid var(--border-color); position: relative;
}
.cart-item-img { width: 60px; height: 60px; background: white; border-radius: 8px; padding: 4px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cart-item-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { font-size: 0.82rem; font-weight: 500; margin-bottom: 4px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cart-item-price { font-size: 0.9rem; font-weight: 700; color: var(--accent-2); }
.cart-item-qty { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.cart-item-qty button { width: 24px; height: 24px; border-radius: 6px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); cursor: pointer; font-size: 0.9rem; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.cart-item-qty button:hover { border-color: var(--accent-1); }
.cart-item-qty span { font-size: 0.85rem; font-weight: 600; min-width: 20px; text-align: center; }
.cart-item-remove { position: absolute; top: 8px; right: 8px; background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1rem; transition: var(--transition); }
.cart-item-remove:hover { color: var(--danger); }
.cart-footer { padding: 20px 24px; border-top: 1px solid var(--border-color); }
.cart-total { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.cart-total span:first-child { font-size: 0.9rem; color: var(--text-secondary); }
.cart-total-price { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; color: var(--text-primary); }
.cart-checkout { width: 100%; justify-content: center; }
.cart-disclaimer { font-size: 0.72rem; color: var(--text-muted); text-align: center; margin-top: 10px; }

/* --- Product Modal --- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 1300; display: none; align-items: center;
  justify-content: center; padding: 24px; backdrop-filter: blur(4px);
}
.modal-overlay.active { display: flex; }
.modal-card {
  background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-xl);
  max-width: 700px; width: 100%; max-height: 90vh; overflow-y: auto; position: relative; animation: modalIn 0.3s ease;
}
@keyframes modalIn { from { opacity: 0; transform: scale(0.95) translateY(20px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal-close { position: absolute; top: 16px; right: 16px; background: var(--bg-tertiary); border: 1px solid var(--border-color); color: var(--text-secondary); width: 36px; height: 36px; border-radius: 50%; cursor: pointer; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; transition: var(--transition); z-index: 2; }
.modal-close:hover { color: var(--text-primary); border-color: var(--border-hover); }
.modal-body { padding: 32px; }
.modal-product { display: flex; gap: 32px; }
.modal-image { flex: 0 0 260px; background: white; border-radius: var(--radius-md); padding: 24px; display: flex; align-items: center; justify-content: center; }
.modal-image img { max-width: 100%; max-height: 220px; object-fit: contain; }
.modal-details { flex: 1; }
.modal-brand { font-size: 0.8rem; color: var(--accent-2); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.modal-name { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; line-height: 1.3; }
.modal-rating { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--warning); margin-bottom: 16px; }
.modal-pricing { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.modal-price { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--text-primary); }
.modal-original { font-size: 1rem; color: var(--text-muted); text-decoration: line-through; }
.modal-save { font-size: 0.85rem; color: var(--success); font-weight: 600; margin-bottom: 16px; }
.modal-specs { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; padding: 16px; background: var(--bg-tertiary); border-radius: var(--radius-md); }
.modal-stock { font-size: 0.85rem; margin-bottom: 20px; display: flex; align-items: center; gap: 6px; }
.modal-stock.in-stock { color: var(--success); }
.modal-actions { display: flex; gap: 12px; }
.modal-actions .btn { flex: 1; justify-content: center; }

/* --- Animations --- */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* --- Toast notification --- */
.toast {
  position: fixed; bottom: 100px; right: 24px; background: var(--bg-secondary); border: 1px solid var(--success);
  border-radius: var(--radius-md); padding: 14px 20px; color: var(--text-primary); font-size: 0.85rem;
  z-index: 2000; display: flex; align-items: center; gap: 10px; box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  animation: toastIn 0.4s ease, toastOut 0.4s ease 2.5s forwards;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(100px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(100px); } }

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

@media (max-width: 768px) {
  .hero { flex-direction: column; padding: 90px 24px 40px; min-height: auto; }
  .hero-content { max-width: 100%; text-align: center; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; flex-wrap: wrap; gap: 16px; }
  .hero-visual { min-height: 260px; width: 100%; }
  .hero-card { padding: 12px 16px; font-size: 0.8rem; }
  .hero-card:nth-child(1) { top: 5%; left: 0; }
  .hero-card:nth-child(2) { top: 0; right: 0; }
  .hero-card:nth-child(3) { bottom: 10%; left: -5%; }
  .hero-card:nth-child(4) { bottom: 5%; right: 0; }

  .nav-links { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(10,11,15,0.97); flex-direction: column; align-items: center; justify-content: center; gap: 24px; z-index: 900; }
  .nav-links.active { display: flex; }
  .nav-link { font-size: 1.1rem; }
  .mobile-toggle { display: flex; }
  .search-bar { position: absolute; top: 100%; left: 16px; right: 16px; max-width: none; display: none; }
  .search-bar.mobile-active { display: block; }
  .btn-nav-cta { display: none; }

  .promo-strip { gap: 16px; justify-content: flex-start; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .filter-chips { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 8px; }
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .features-grid { grid-template-columns: 1fr; gap: 8px; }
  .cta-card { padding: 32px 20px; }
  .cta-decoration { display: none; }
  .footer-content { flex-direction: column; gap: 20px; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 12px; }

  .modal-product { flex-direction: column; }
  .modal-image { flex: none; height: 200px; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .product-image { height: 180px; }
}