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

:root {
  --c-bg:        #0a0a0a;
  --c-surface:   #111111;
  --c-surface2:  #1a1a1a;
  --c-border:    #222222;
  --c-border2:   #333333;
  --c-text:      #f0ede8;
  --c-muted:     #888580;
  --c-accent:    #e8ff47;
  --c-accent-dk: #c8df20;
  --c-phone:     #3b6bff;
  --c-laptop:    #ff6b35;
  --c-tablet:    #7c3aed;
  --c-headphone: #059669;
  --radius:      12px;
  --radius-lg:   20px;
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --nav-h:       64px;
  --transition:  0.2s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: var(--font-body); cursor: pointer; border: none; }

/* ─── NAV ──────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: var(--nav-h);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}
.logo-dot { color: var(--c-accent); }

.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-muted);
  padding: 6px 12px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--c-text);
  background: var(--c-surface2);
}

.nav-right { margin-left: auto; }

.btn-search {
  background: var(--c-surface2);
  color: var(--c-muted);
  border: 1px solid var(--c-border);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.btn-search:hover { color: var(--c-text); border-color: var(--c-border2); }

/* ─── SEARCH BAR ───────────────────────────────── */
.search-bar {
  border-top: 1px solid var(--c-border);
  background: var(--c-surface);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4,0,0.2,1);
}
.search-bar.open { max-height: 400px; }

.search-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-inner svg { color: var(--c-muted); flex-shrink: 0; }
.search-inner input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
}
.search-inner input::placeholder { color: var(--c-muted); }
.search-inner kbd {
  font-size: 11px;
  color: var(--c-muted);
  border: 1px solid var(--c-border2);
  border-radius: 5px;
  padding: 2px 6px;
  font-family: var(--font-body);
}

.search-results {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px 12px;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition);
}
.search-result-item:hover { background: var(--c-surface2); }
.search-result-item .sri-cat {
  font-size: 11px;
  color: var(--c-muted);
  background: var(--c-surface2);
  padding: 2px 8px;
  border-radius: 99px;
  border: 1px solid var(--c-border);
  flex-shrink: 0;
}
.search-result-item .sri-name { font-size: 14px; font-weight: 500; }
.search-result-item .sri-price { margin-left: auto; font-size: 13px; color: var(--c-muted); }

/* ─── MAIN ─────────────────────────────────────── */
main { padding-top: var(--nav-h); }

/* ─── HERO ─────────────────────────────────────── */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 24px 80px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 500px;
  background: radial-gradient(ellipse, rgba(232,255,71,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--c-accent);
  background: rgba(232,255,71,0.08);
  border: 1px solid rgba(232,255,71,0.2);
  padding: 5px 14px;
  border-radius: 99px;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(52px, 8vw, 88px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.hero-accent {
  color: var(--c-accent);
  position: relative;
}

.hero-sub {
  font-size: 17px;
  color: var(--c-muted);
  margin-bottom: 48px;
  max-width: 400px;
}

/* ─── HERO SEARCH ──────────────────────────────── */
.hero-search {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--c-surface);
  border: 1px solid var(--c-border2);
  border-radius: var(--radius-lg);
  padding: 8px 8px 8px 12px;
  max-width: 640px;
  margin-bottom: 20px;
  transition: border-color var(--transition);
}
.hero-search:focus-within { border-color: rgba(232,255,71,0.4); }

.hs-slot {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--c-muted);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition);
  min-width: 0;
}
.hs-slot:hover { background: var(--c-surface2); color: var(--c-text); }
.hs-slot.filled { color: var(--c-text); background: var(--c-surface2); }
.hs-slot span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.hs-vs {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-muted);
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 4px 8px;
  flex-shrink: 0;
}

.hs-btn {
  background: var(--c-accent);
  color: #0a0a0a;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 10px;
  flex-shrink: 0;
  transition: all var(--transition);
  opacity: 0.4;
}
.hs-btn:not(:disabled) { opacity: 1; }
.hs-btn:not(:disabled):hover { background: var(--c-accent-dk); transform: translateY(-1px); }

.hero-popular {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.popular-label { font-size: 12px; color: var(--c-muted); }
.popular-tag {
  font-size: 12px;
  color: var(--c-muted);
  border: 1px solid var(--c-border);
  padding: 4px 12px;
  border-radius: 99px;
  transition: all var(--transition);
}
.popular-tag:hover { color: var(--c-text); border-color: var(--c-border2); background: var(--c-surface2); }

/* ─── FEATURES ─────────────────────────────────── */
.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature-card {
  background: var(--c-surface);
  padding: 32px 28px;
  transition: background var(--transition);
}
.feature-card:hover { background: var(--c-surface2); }
.feature-card--highlight { background: var(--c-surface2); }

.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(232,255,71,0.08);
  border: 1px solid rgba(232,255,71,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--c-accent);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p { font-size: 14px; color: var(--c-muted); line-height: 1.6; }

/* ─── SECTION TITLE ────────────────────────────── */
.section-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 24px;
}

/* ─── CATEGORIES ───────────────────────────────── */
.categories {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  overflow: hidden;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  min-height: 160px;
  display: flex;
  align-items: flex-end;
}

.cat-card:hover { transform: translateY(-4px); border-color: var(--c-border2); }

.cat-bg {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
}
.cat-card:hover .cat-bg { opacity: 1; }

.cat-card--phone .cat-bg    { background: radial-gradient(ellipse at 80% 20%, rgba(59,107,255,0.15), transparent 60%); }
.cat-card--laptop .cat-bg   { background: radial-gradient(ellipse at 80% 20%, rgba(255,107,53,0.15), transparent 60%); }
.cat-card--tablet .cat-bg   { background: radial-gradient(ellipse at 80% 20%, rgba(124,58,237,0.15), transparent 60%); }
.cat-card--headphone .cat-bg{ background: radial-gradient(ellipse at 80% 20%, rgba(5,150,105,0.15), transparent 60%); }

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

.cat-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.cat-card--phone    .cat-icon { background: rgba(59,107,255,0.15);  color: #3b6bff; }
.cat-card--laptop   .cat-icon { background: rgba(255,107,53,0.15);  color: #ff6b35; }
.cat-card--tablet   .cat-icon { background: rgba(124,58,237,0.15);  color: #7c3aed; }
.cat-card--headphone .cat-icon{ background: rgba(5,150,105,0.15);   color: #059669; }

.cat-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.cat-count { font-size: 12px; color: var(--c-muted); }

/* ─── TRENDING ─────────────────────────────────── */
.trending {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 100px;
}

.trending-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
}
.trending-sub { font-size: 13px; color: var(--c-muted); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

/* ─── PRODUCT CARD ─────────────────────────────── */
.product-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.product-card:hover { border-color: var(--c-border2); transform: translateY(-3px); }

.product-card .pc-badge {
  position: absolute;
  top: 12px; right: 12px;
  font-size: 11px;
  font-weight: 700;
  color: #0a0a0a;
  background: var(--c-accent);
  padding: 3px 8px;
  border-radius: 6px;
}
.pc-badge.down { background: #34d399; }

.product-card .pc-img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin: 0 auto 14px;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4));
}

.product-card .pc-cat {
  font-size: 11px;
  color: var(--c-muted);
  margin-bottom: 4px;
}
.product-card .pc-name {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}
.product-card .pc-price {
  font-size: 18px;
  font-weight: 500;
  font-family: var(--font-display);
}
.product-card .pc-old {
  font-size: 12px;
  color: var(--c-muted);
  text-decoration: line-through;
  margin-left: 6px;
}
.product-card .pc-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
.product-card .pc-btn {
  flex: 1;
  font-size: 12px;
  font-weight: 500;
  padding: 7px;
  border-radius: 8px;
  transition: all var(--transition);
  text-align: center;
}
.pc-btn-compare {
  background: rgba(232,255,71,0.1);
  color: var(--c-accent);
  border: 1px solid rgba(232,255,71,0.2);
}
.pc-btn-compare:hover { background: rgba(232,255,71,0.18); }
.pc-btn-alarm {
  background: var(--c-surface2);
  color: var(--c-muted);
  border: 1px solid var(--c-border);
}
.pc-btn-alarm:hover { color: var(--c-text); border-color: var(--c-border2); }

/* ─── SKELETON ─────────────────────────────────── */
.product-skeleton {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  height: 240px;
  position: relative;
  overflow: hidden;
}
.product-skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.03) 50%, transparent 100%);
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ─── FOOTER ───────────────────────────────────── */
.footer {
  border-top: 1px solid var(--c-border);
  background: var(--c-surface);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: flex;
  gap: 80px;
}

.footer-brand { flex: 1; }
.footer-brand .logo { font-size: 18px; display: inline-block; margin-bottom: 10px; }
.footer-brand p { font-size: 13px; color: var(--c-muted); max-width: 240px; line-height: 1.6; }

.footer-links { display: flex; gap: 60px; }

.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-col a { font-size: 13px; color: var(--c-muted); transition: color var(--transition); }
.footer-col a:hover { color: var(--c-text); }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--c-muted);
}

/* ─── RESPONSIVE ───────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding: 60px 20px 60px; }
  .hero-title { font-size: 44px; letter-spacing: -1px; }
  .hero-search { flex-direction: column; padding: 12px; }
  .hs-vs { align-self: center; }
  .hs-btn { width: 100%; }
  .features-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-links { gap: 32px; }
}

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