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

:root {
  --primary: #00d4ff;
  --primary-dark: #0099cc;
  --accent: #ff6b00;
  --bg: #0a0a0f;
  --bg2: #111118;
  --bg3: #1a1a24;
  --card: #16161f;
  --border: #2a2a3a;
  --text: #e8e8f0;
  --text2: #9999bb;
  --green: #00ff88;
  --red: #ff3355;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,212,255,0.08);
}

html { scroll-behavior: smooth; }
body { font-family: 'Rajdhani', 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; outline: none; }
ul { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== HEADER ===== */
header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(10,10,15,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; gap: 16px;
  max-width: 1400px; margin: 0 auto;
}

.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.6rem; font-weight: 800; letter-spacing: 2px;
  color: var(--primary); text-shadow: 0 0 20px var(--primary);
  white-space: nowrap;
}
.logo span { color: var(--accent); }
.logo-icon { font-size: 1.8rem; }

.search-bar {
  flex: 1; max-width: 500px;
  display: flex; align-items: center;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden;
  transition: border-color 0.2s;
}
.search-bar:focus-within { border-color: var(--primary); }
.search-bar input {
  flex: 1; padding: 10px 14px;
  background: transparent; border: none; outline: none;
  color: var(--text); font-size: 0.95rem;
}
.search-bar input::placeholder { color: var(--text2); }
.search-bar button {
  padding: 10px 16px; background: var(--primary);
  color: #000; font-size: 1rem;
  transition: background 0.2s;
}
.search-bar button:hover { background: var(--primary-dark); }

.header-actions { display: flex; align-items: center; gap: 8px; }
.header-actions a {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 600;
  transition: all 0.2s;
}
.btn-cart {
  background: var(--primary); color: #000 !important;
  position: relative;
}
.btn-cart:hover { background: var(--primary-dark); transform: translateY(-1px); }
.cart-count {
  position: absolute; top: -6px; right: -6px;
  background: var(--accent); color: #fff;
  font-size: 0.7rem; font-weight: 700;
  width: 18px; height: 18px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

.nav-bar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.nav-bar nav {
  max-width: 1400px; margin: 0 auto;
  display: flex; align-items: center; gap: 4px;
  padding: 0 24px; overflow-x: auto;
}
.nav-bar nav a {
  padding: 12px 16px; font-size: 0.9rem; font-weight: 600;
  color: var(--text2); white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}
.nav-bar nav a:hover,
.nav-bar nav a.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, #0a0a0f 0%, #0d1a2e 50%, #0a0a0f 100%);
  padding: 64px 24px;
  text-align: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,212,255,0.08) 0%, transparent 70%);
}
.hero-content { position: relative; max-width: 700px; margin: 0 auto; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900; line-height: 1.1;
  letter-spacing: 3px; text-transform: uppercase;
  color: #fff;
}
.hero h1 span { color: var(--primary); text-shadow: 0 0 30px var(--primary); }
.hero p { color: var(--text2); margin: 16px 0 32px; font-size: 1.1rem; }
.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.btn {
  padding: 12px 28px; border-radius: 8px;
  font-size: 0.95rem; font-weight: 700;
  letter-spacing: 1px; text-transform: uppercase;
  transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: #000; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,212,255,0.3); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #000; transform: translateY(-2px); }

/* ===== SECTION ===== */
.section { max-width: 1400px; margin: 0 auto; padding: 48px 24px; }
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 32px;
}
.section-title {
  font-size: 1.5rem; font-weight: 800;
  letter-spacing: 2px; text-transform: uppercase;
  position: relative; padding-left: 16px;
}
.section-title::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px; background: var(--primary); border-radius: 2px;
}
.section-link { color: var(--primary); font-size: 0.9rem; font-weight: 600; }
.section-link:hover { text-decoration: underline; }

/* ===== CATEGORIES ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}
.cat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  display: block;
}
.cat-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,212,255,0.15);
}
.cat-icon { font-size: 2rem; margin-bottom: 10px; }
.cat-name { font-size: 0.85rem; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 1px; }

/* ===== PRODUCTS GRID ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.25s;
  display: flex; flex-direction: column;
  position: relative;
}
.product-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,212,255,0.12);
}

.product-badge {
  position: absolute; top: 12px; left: 12px;
  padding: 4px 10px; border-radius: 4px;
  font-size: 0.7rem; font-weight: 800;
  letter-spacing: 1px; text-transform: uppercase;
  z-index: 2;
}
.badge-new { background: var(--green); color: #000; }
.badge-hot { background: var(--accent); color: #fff; }
.badge-sale { background: var(--red); color: #fff; }

.product-img {
  width: 100%; height: 200px;
  object-fit: contain;
  background: #0e0e18;
  padding: 16px;
  transition: transform 0.3s;
}
.product-card:hover .product-img { transform: scale(1.04); }

.product-info { padding: 16px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.product-category { font-size: 0.72rem; color: var(--primary); font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
.product-name { font-size: 0.95rem; font-weight: 700; line-height: 1.4; }
.product-name a:hover { color: var(--primary); }
.product-price { margin-top: auto; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.price-current { font-size: 1.2rem; font-weight: 800; color: var(--primary); }
.price-old { font-size: 0.85rem; color: var(--text2); text-decoration: line-through; }

.product-actions { padding: 0 16px 16px; display: flex; gap: 8px; }
.btn-add-cart {
  flex: 1; padding: 10px;
  background: var(--primary); color: #000;
  border-radius: 8px; font-weight: 700;
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px;
  transition: all 0.2s;
}
.btn-add-cart:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-detail {
  padding: 10px 14px;
  background: var(--bg3); color: var(--text2);
  border-radius: 8px; font-size: 0.85rem;
  border: 1px solid var(--border);
  transition: all 0.2s;
}
.btn-detail:hover { border-color: var(--primary); color: var(--primary); }

/* ===== PRODUCTS PAGE ===== */
.products-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 28px;
  max-width: 1400px; margin: 0 auto; padding: 32px 24px;
}

.filters-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  height: fit-content;
  position: sticky; top: 80px;
}
.filter-title { font-size: 1rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; color: var(--primary); }
.filter-group { margin-bottom: 24px; }
.filter-group-title { font-size: 0.8rem; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.filter-option {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 0; cursor: pointer; font-size: 0.9rem;
}
.filter-option input[type="checkbox"] { accent-color: var(--primary); width: 15px; height: 15px; }
.filter-option:hover { color: var(--primary); }

.price-range { display: flex; gap: 8px; }
.price-range input {
  width: 100%; padding: 8px 10px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 0.85rem;
}
.price-range input:focus { border-color: var(--primary); outline: none; }

.btn-filter-apply {
  width: 100%; padding: 10px;
  background: var(--primary); color: #000;
  border-radius: 8px; font-weight: 700; font-size: 0.9rem;
  text-transform: uppercase; letter-spacing: 1px;
  margin-top: 8px;
}
.btn-filter-apply:hover { background: var(--primary-dark); }

.products-main {}
.products-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.products-count { color: var(--text2); font-size: 0.9rem; }
.sort-select {
  padding: 8px 14px; background: var(--card);
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-size: 0.9rem;
}
.sort-select:focus { border-color: var(--primary); outline: none; }

/* ===== PRODUCT DETAIL ===== */
.detail-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 40px; max-width: 1200px; margin: 0 auto; padding: 40px 24px;
}
.detail-gallery { position: relative; }
.detail-main-img {
  width: 100%; height: 420px; object-fit: contain;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
}
.detail-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.detail-thumb {
  width: 72px; height: 72px; object-fit: contain;
  background: var(--card); border: 2px solid var(--border);
  border-radius: 8px; padding: 6px; cursor: pointer;
  transition: border-color 0.2s;
}
.detail-thumb.active, .detail-thumb:hover { border-color: var(--primary); }

.detail-info {}
.detail-category { font-size: 0.75rem; color: var(--primary); font-weight: 700; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px; }
.detail-name { font-size: 1.8rem; font-weight: 900; line-height: 1.2; margin-bottom: 12px; }
.detail-price-wrap { display: flex; align-items: center; gap: 16px; margin: 20px 0; }
.detail-price { font-size: 2rem; font-weight: 900; color: var(--primary); }
.detail-price-old { font-size: 1.1rem; color: var(--text2); text-decoration: line-through; }
.detail-stock { font-size: 0.85rem; font-weight: 700; color: var(--green); }
.detail-desc { color: var(--text2); line-height: 1.7; margin: 16px 0; font-size: 0.95rem; }

.detail-specs { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin: 20px 0; }
.spec-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.spec-row:last-child { border-bottom: none; }
.spec-key { color: var(--text2); }
.spec-val { font-weight: 700; }

.detail-qty { display: flex; align-items: center; gap: 8px; margin: 20px 0; }
.qty-btn { width: 36px; height: 36px; background: var(--bg3); border: 1px solid var(--border); border-radius: 6px; color: var(--text); font-size: 1.1rem; font-weight: 700; transition: all 0.2s; }
.qty-btn:hover { border-color: var(--primary); color: var(--primary); }
.qty-input { width: 60px; text-align: center; padding: 8px; background: var(--bg3); border: 1px solid var(--border); border-radius: 6px; color: var(--text); font-size: 1rem; }
.qty-input:focus { border-color: var(--primary); outline: none; }

.detail-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-add-cart-big {
  flex: 1; padding: 14px 24px;
  background: var(--primary); color: #000;
  border-radius: 10px; font-weight: 800; font-size: 1rem;
  text-transform: uppercase; letter-spacing: 2px;
  transition: all 0.2s;
}
.btn-add-cart-big:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,212,255,0.3); }

/* ===== CART PAGE ===== */
.cart-layout {
  display: grid; grid-template-columns: 1fr 360px;
  gap: 28px; max-width: 1200px; margin: 0 auto; padding: 32px 24px;
}
.cart-title { font-size: 1.5rem; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 24px; }

.cart-item {
  display: flex; align-items: center; gap: 16px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  margin-bottom: 12px; transition: border-color 0.2s;
}
.cart-item:hover { border-color: var(--border); }
.cart-item-img { width: 90px; height: 90px; object-fit: contain; background: #0e0e18; border-radius: 8px; padding: 8px; flex-shrink: 0; }
.cart-item-info { flex: 1; }
.cart-item-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 4px; }
.cart-item-cat { font-size: 0.75rem; color: var(--primary); text-transform: uppercase; font-weight: 700; margin-bottom: 8px; }
.cart-item-price { font-size: 1rem; font-weight: 800; color: var(--primary); }
.cart-item-controls { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.cart-item-remove { padding: 6px 12px; background: transparent; border: 1px solid var(--red); border-radius: 6px; color: var(--red); font-size: 0.8rem; transition: all 0.2s; }
.cart-item-remove:hover { background: var(--red); color: #fff; }

.cart-summary {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  height: fit-content; position: sticky; top: 80px;
}
.summary-title { font-size: 1.1rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; color: var(--primary); }
.summary-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.summary-row:last-of-type { border-bottom: none; }
.summary-total { font-weight: 800; font-size: 1rem; }
.summary-total-price { font-weight: 800; font-size: 1.3rem; color: var(--primary); }
.btn-checkout {
  width: 100%; padding: 14px;
  background: var(--primary); color: #000;
  border-radius: 10px; font-weight: 800; font-size: 1rem;
  text-transform: uppercase; letter-spacing: 2px; margin-top: 20px;
  transition: all 0.2s;
}
.btn-checkout:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,212,255,0.3); }

.cart-empty { text-align: center; padding: 60px 24px; }
.cart-empty-icon { font-size: 4rem; margin-bottom: 16px; }
.cart-empty h2 { font-size: 1.4rem; font-weight: 800; margin-bottom: 8px; }
.cart-empty p { color: var(--text2); margin-bottom: 24px; }

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  background: var(--bg3); border: 1px solid var(--primary);
  border-radius: 10px; padding: 14px 20px;
  display: flex; align-items: center; gap: 10px;
  color: var(--text); font-weight: 600; font-size: 0.9rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  transform: translateY(100px); opacity: 0;
  transition: all 0.3s cubic-bezier(0.34,1.56,0.64,1);
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast-icon { font-size: 1.2rem; }

/* ===== FOOTER ===== */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  margin-top: 60px;
}
.footer-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px; max-width: 1400px; margin: 0 auto;
  padding: 48px 24px 32px;
}
.footer-col h4 { font-size: 0.85rem; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; color: var(--primary); margin-bottom: 16px; }
.footer-col p, .footer-col a { color: var(--text2); font-size: 0.9rem; line-height: 2; display: block; transition: color 0.2s; }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border);
  text-align: center; padding: 20px 24px;
  color: var(--text2); font-size: 0.85rem;
}

/* ===== MUSIC PLAYER ===== */
.music-player {
  position: fixed; bottom: 24px; left: 24px; z-index: 999;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 50px; padding: 10px 16px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  transition: all 0.2s;
}
.music-player:hover { border-color: var(--primary); }
.music-btn { background: var(--primary); color: #000; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; transition: all 0.2s; }
.music-btn:hover { transform: scale(1.1); }
.music-info { font-size: 0.8rem; }
.music-title { font-weight: 700; color: var(--text); white-space: nowrap; max-width: 150px; overflow: hidden; text-overflow: ellipsis; }
.music-sub { color: var(--text2); font-size: 0.7rem; }
.music-vol { width: 70px; accent-color: var(--primary); }

/* ===== PROMO BANNER ===== */
.promo-banner {
  background: linear-gradient(90deg, #0099cc, #00d4ff, #0099cc);
  background-size: 200% 100%; animation: shimmer 3s linear infinite;
  text-align: center; padding: 12px;
  font-weight: 700; font-size: 0.9rem; color: #000;
  letter-spacing: 1px;
}
@keyframes shimmer { 0%{background-position:0% 0%} 100%{background-position:200% 0%} }

/* ===== BREADCRUMB ===== */
.breadcrumb { padding: 14px 24px; max-width: 1400px; margin: 0 auto; display: flex; gap: 8px; align-items: center; font-size: 0.85rem; color: var(--text2); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--text2); }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,0.8); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px; max-width: 460px; width: 90%;
  transform: scale(0.9); transition: transform 0.2s;
}
.modal-overlay.open .modal { transform: scale(1); }
.modal h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 16px; }
.modal p { color: var(--text2); line-height: 1.6; margin-bottom: 20px; }
.modal-btns { display: flex; gap: 12px; justify-content: flex-end; }

/* ===== PAGE HEADER ===== */
.page-header {
  background: linear-gradient(135deg, var(--bg2), var(--bg3));
  border-bottom: 1px solid var(--border);
  padding: 32px 24px;
}
.page-header-inner { max-width: 1400px; margin: 0 auto; }
.page-header h1 { font-size: 2rem; font-weight: 900; text-transform: uppercase; letter-spacing: 3px; }
.page-header h1 span { color: var(--primary); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .products-layout { grid-template-columns: 1fr; }
  .filters-panel { position: static; }
  .detail-layout { grid-template-columns: 1fr; }
  .cart-layout { grid-template-columns: 1fr; }
  .cart-summary { position: static; }
}
@media (max-width: 768px) {
  .header-top { padding: 10px 16px; }
  .search-bar { max-width: 100%; }
  .logo { font-size: 1.2rem; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .hero { padding: 40px 16px; }
  .section { padding: 32px 16px; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr 1fr; }
  .header-actions .btn-cart span:not(.cart-count) { display: none; }
  .music-info, .music-vol { display: none; }
}