:root {
  --bg: #0a0e1a; --bg-2: #0f1729; --surface: rgba(15,23,41,.7);
  --primary: #22d3ee; --primary-2: #0891b2; --accent: #8b5cf6;
  --text: #e2e8f0; --muted: #94a3b8; --border: rgba(148,163,184,.15);
  --success: #22c55e; --danger: #ef4444;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, system-ui, 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6;
  background-image: radial-gradient(circle at 20% 20%, rgba(34,211,238,.08), transparent 50%), radial-gradient(circle at 80% 80%, rgba(139,92,246,.06), transparent 50%); min-height: 100vh; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
img { max-width: 100%; }

/* Navbar */
.navbar { position: sticky; top: 0; z-index: 50; background: rgba(10,14,26,.85); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; gap: 24px; }
.logo { font-size: 22px; font-weight: 800; color: var(--primary); }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--muted); font-weight: 500; font-size: 14px; transition: color .2s; }
.nav-links a:hover { color: var(--primary); }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.cart-btn { padding: 8px 14px; border-radius: 8px; background: rgba(34,211,238,.1); color: var(--primary); font-weight: 600; font-size: 14px; }
.btn-primary { background: linear-gradient(135deg,var(--primary),var(--primary-2)); color: var(--bg); padding: 10px 20px; border-radius: 8px; font-weight: 700; border: none; cursor: pointer; font-size: 14px; }
.btn-ghost { padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border); color: var(--text); font-size: 14px; }
.btn-primary:hover, .btn-ghost:hover { opacity: .85; }

/* Hero */
.hero { padding: 100px 20px 80px; text-align: center; }
.hero h1 { font-size: clamp(36px, 6vw, 64px); font-weight: 800; line-height: 1.1; margin-bottom: 20px;
  background: linear-gradient(135deg, #fff, var(--primary)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: 18px; color: var(--muted); max-width: 640px; margin: 0 auto 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Sections */
section { padding: 60px 20px; }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.section-title p { color: var(--muted); }

/* Cards */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 28px; transition: all .2s; backdrop-filter: blur(20px); }
.card:hover { transform: translateY(-4px); border-color: rgba(34,211,238,.4); box-shadow: 0 20px 40px rgba(34,211,238,.1); }
.card h3 { font-size: 20px; margin-bottom: 8px; }
.card .price { font-size: 32px; font-weight: 800; color: var(--primary); margin: 16px 0; }
.card .price small { font-size: 14px; color: var(--muted); font-weight: 400; }
.card .old-price { color: var(--muted); text-decoration: line-through; font-size: 16px; margin-right: 8px; }
.card ul { list-style: none; margin: 16px 0; }
.card ul li { padding: 6px 0; color: var(--muted); font-size: 14px; }
.card ul li::before { content: '✓ '; color: var(--success); font-weight: 700; }
.badge { display: inline-block; background: rgba(34,211,238,.15); color: var(--primary); padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; max-width: 900px; margin: 0 auto; }
.stat { text-align: center; padding: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.stat .num { font-size: 36px; font-weight: 800; color: var(--primary); }
.stat .label { color: var(--muted); font-size: 14px; }

/* Forms */
.form { max-width: 520px; margin: 0 auto; }
.form label { display: block; margin: 12px 0 6px; font-size: 14px; color: var(--muted); }
.form input, .form textarea, .form select { width: 100%; padding: 12px 16px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 14px; font-family: inherit; }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--primary); }
.form button { width: 100%; margin-top: 20px; padding: 14px; }

/* Search */
.search-box { max-width: 720px; margin: 0 auto; display: flex; gap: 12px; padding: 8px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.search-box input { flex: 1; padding: 14px 18px; background: transparent; border: none; color: var(--text); font-size: 16px; outline: none; }
.search-box button { padding: 14px 28px; }

/* Table */
table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: 12px; overflow: hidden; }
th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
th { background: rgba(34,211,238,.05); color: var(--primary); font-weight: 600; }

/* Flash */
.flash { max-width: 1200px; margin: 16px auto; padding: 14px 20px; border-radius: 8px; }
.flash-success { background: rgba(34,197,94,.1); border: 1px solid var(--success); color: #86efac; }
.flash-error { background: rgba(239,68,68,.1); border: 1px solid var(--danger); color: #fca5a5; }

/* Footer */
.footer { background: var(--bg-2); border-top: 1px solid var(--border); padding: 60px 20px 20px; margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer h3 { color: var(--primary); margin-bottom: 12px; }
.footer h4 { margin-bottom: 16px; }
.footer a { display: block; color: var(--muted); padding: 4px 0; font-size: 14px; }
.footer a:hover { color: var(--primary); }
.footer-bottom { text-align: center; color: var(--muted); padding-top: 20px; border-top: 1px solid var(--border); font-size: 13px; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}