:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --surface-2: #1c1c1c;
  --border: #2a2a2a;
  --text: #f3f3f3;
  --text-dim: #9aa0a6;
  --primary: #00ff9d;
  --accent: #00b8ff;
  --danger: #ff4d6d;
  --warning: #ffb020;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(0,0,0,.45);
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.5;
  min-height: 100%;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--accent); }

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

button, .btn {
  cursor: pointer;
  border: none;
  background: var(--primary);
  color: #001a10;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius);
  transition: transform .15s ease, box-shadow .15s ease, background .2s;
  font-size: 14px;
}
button:hover, .btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0,255,157,.25); }
.btn-outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-accent { background: var(--accent); color: #00131f; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); }
.btn-sm { padding: 6px 10px; font-size: 12px; }

input, select, textarea {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary);
}

/* Header */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,10,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 14px 20px;
  display: flex; align-items: center; gap: 16px;
}
.logo {
  font-weight: 800; font-size: 22px; letter-spacing: 2px;
  color: var(--primary);
  display: flex; align-items: center;
}
.logo img { max-height: 44px; width: auto; }
.search-wrap { flex: 1; max-width: 420px; }
.cart-btn {
  position: relative; background: transparent; color: var(--text);
  border: 1px solid var(--border); padding: 8px 14px;
}
.cart-count {
  position: absolute; top: -8px; right: -8px;
  background: var(--primary); color: #001a10;
  border-radius: 999px; padding: 2px 7px; font-size: 11px; font-weight: 700;
}

/* Hero */
.hero {
  padding: 64px 20px;
  background:
    radial-gradient(circle at 20% 30%, rgba(0,255,157,.12), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0,184,255,.12), transparent 50%);
  text-align: center;
}
.hero-inner { max-width: 900px; margin: 0 auto; }
.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1; margin-bottom: 14px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.hero p { color: var(--text-dim); font-size: 18px; margin-bottom: 28px; }
.hero-image { margin-top: 28px; border-radius: var(--radius); overflow: hidden; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 30px 20px; }
.section-title {
  font-size: 24px; margin-bottom: 18px;
  display: flex; align-items: center; justify-content: space-between;
}

/* Filters */
.filters {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px;
  background: var(--surface); padding: 14px; border-radius: var(--radius);
  border: 1px solid var(--border);
}
.filters > * { flex: 1; min-width: 160px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.chip {
  padding: 6px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text-dim); font-size: 13px; cursor: pointer;
  user-select: none; transition: .15s;
}
.chip:hover { color: var(--text); }
.chip.active { background: var(--primary); color: #001a10; border-color: var(--primary); }

/* Product grid */
.grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .2s ease, border-color .2s;
}
.card:hover { transform: translateY(-3px); border-color: var(--primary); }
.card-img {
  aspect-ratio: 1/1; background: var(--surface-2);
  position: relative; overflow: hidden;
}
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.badge {
  position: absolute; top: 10px; left: 10px;
  background: var(--danger); color: #fff;
  padding: 4px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 700;
}
.badge.new { background: var(--accent); color: #00131f; }
.card-body { padding: 14px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-cat { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; }
.card-title { font-size: 16px; font-weight: 600; }
.card-desc { color: var(--text-dim); font-size: 13px; flex: 1; }
.price-row { display: flex; align-items: baseline; gap: 8px; }
.price { font-size: 20px; font-weight: 700; color: var(--primary); }
.price-old { color: var(--text-dim); text-decoration: line-through; font-size: 13px; }
.stock { font-size: 12px; color: var(--text-dim); }
.stock.out { color: var(--danger); }
.card-actions { display: flex; gap: 8px; margin-top: 8px; }
.card-actions > * { flex: 1; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  display: none; align-items: center; justify-content: center;
  z-index: 100; padding: 20px;
}
.modal-backdrop.show { display: flex; }
.modal {
  background: var(--surface); border-radius: var(--radius);
  border: 1px solid var(--border);
  max-width: 720px; width: 100%; max-height: 90vh; overflow: auto;
  box-shadow: var(--shadow);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-body { padding: 20px; }
.close-btn { background: transparent; color: var(--text-dim); padding: 4px 8px; }

/* Cart */
.cart-item {
  display: flex; gap: 12px; padding: 12px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.cart-item img { width: 60px; height: 60px; border-radius: 8px; object-fit: cover; }
.cart-item-info { flex: 1; }
.qty-controls { display: flex; align-items: center; gap: 6px; }
.qty-controls button { padding: 4px 10px; }
.cart-total {
  display: flex; justify-content: space-between;
  padding: 16px 0; font-size: 18px; font-weight: 700;
}

/* WhatsApp floating button */
.wa-float {
  position: fixed; bottom: 22px; right: 22px;
  background: #25d366; width: 58px; height: 58px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(37,211,102,.4);
  z-index: 90; transition: transform .15s;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; fill: #fff; }

/* Footer */
.footer {
  text-align: center; padding: 40px 20px;
  color: var(--text-dim); font-size: 13px;
  border-top: 1px solid var(--border); margin-top: 40px;
}
.socials {
  display: flex; gap: 14px; justify-content: center;
  margin-bottom: 18px; flex-wrap: wrap;
}
.socials a {
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text); transition: transform .15s, border-color .15s, color .15s;
}
.socials a:hover { transform: translateY(-2px); border-color: var(--primary); color: var(--primary); }
.socials svg { width: 20px; height: 20px; fill: currentColor; }

/* Admin */
.admin-shell { max-width: 1200px; margin: 0 auto; padding: 20px; }
.admin-tabs {
  display: flex; gap: 6px; flex-wrap: wrap;
  border-bottom: 1px solid var(--border); margin-bottom: 24px;
}
.tab-btn {
  background: transparent; color: var(--text-dim);
  border-bottom: 2px solid transparent; border-radius: 0;
  padding: 10px 16px;
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th, .admin-table td {
  padding: 10px; text-align: left; border-bottom: 1px solid var(--border);
}
.admin-table th { color: var(--text-dim); font-weight: 500; font-size: 12px; text-transform: uppercase; }
.admin-table tr:hover { background: var(--surface-2); }
.admin-table img { width: 40px; height: 40px; object-fit: cover; border-radius: 6px; }

.form-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .5px; }
.form-group.full { grid-column: 1 / -1; }

.image-preview {
  display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px;
}
.image-preview img {
  width: 70px; height: 70px; object-fit: cover; border-radius: 8px;
  border: 1px solid var(--border);
}

.login-shell {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.login-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; max-width: 380px; width: 100%;
  box-shadow: var(--shadow);
}
.login-card h1 { margin-bottom: 8px; color: var(--primary); }
.login-card p { color: var(--text-dim); margin-bottom: 22px; font-size: 14px; }

.toast {
  position: fixed; bottom: 90px; right: 22px;
  background: var(--surface); border: 1px solid var(--primary);
  color: var(--text); padding: 12px 18px; border-radius: 10px;
  z-index: 200; box-shadow: var(--shadow);
  opacity: 0; transform: translateY(20px); transition: .25s;
  max-width: 320px;
}
.toast.show { opacity: 1; transform: translateY(0); }

.empty {
  text-align: center; padding: 60px 20px; color: var(--text-dim);
}

.row-actions { display: flex; gap: 6px; }

@media (max-width: 640px) {
  .header-inner { flex-wrap: wrap; }
  .search-wrap { order: 3; flex-basis: 100%; max-width: none; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .card-title { font-size: 14px; }
  .price { font-size: 17px; }
}