:root {
  --bg: #0a0a0a;
  --bg-elev: #151515;
  --bg-elev-2: #1f1f1f;
  --border: #2b2b2b;
  --text: #f5f5f5;
  --text-muted: #a0a0a0;
  --accent: #ffffff;
  --danger: #ff4d4d;
  --success: #3ddc84;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* HEADER */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,10,10,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}
.header .logo {
  display: flex;
  align-items: center;
  color: var(--text);
}
.header nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
}
.header nav a, .header nav button {
  color: var(--text);
  background: none;
  border: none;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}
.cart-link {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.cart-badge {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--accent);
  color: #000;
  border-radius: 50%;
  padding: 1px 6px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.4;
}
.logout-btn {
  color: var(--danger) !important;
  font-weight: 600;
}

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

h1 { font-size: 28px; margin-bottom: 24px; text-transform: uppercase; letter-spacing: 0.5px; }
h2 { font-size: 20px; margin-bottom: 16px; }

/* GRID PRODUCTOS */
.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 1024px) { .grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px)  { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .grid { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-2px); border-color: #444; }
.card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #222;
}
.card .info { padding: 14px 14px 18px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.card .cat { color: var(--text-muted); font-size: 12px; text-transform: uppercase; }
.card .name { font-size: 15px; font-weight: 600; }
.card .price {
  font-size: 20px;
  font-weight: 800;
  margin-top: auto;
  letter-spacing: 0.3px;
}

/* BOTONES */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 30px;
  padding: 12px 24px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.btn:hover { opacity: 0.85; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--text);
  color: var(--text);
}
.btn-full { width: 100%; }
.btn-danger { background: var(--danger); color: #fff; }

/* FORMS */
.form-box {
  max-width: 420px;
  margin: 40px auto;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px;
}
label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--text-muted); }
input, select {
  width: 100%;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 16px;
  font-family: inherit;
}
input:focus, select:focus { outline: 1px solid var(--accent); }
.checkbox-row { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 16px; }
.checkbox-row input { width: auto; margin: 3px 0 0; }
.checkbox-row label { color: var(--text); font-size: 13px; margin: 0; }
.error-msg { color: var(--danger); font-size: 13px; margin-bottom: 12px; min-height: 16px; }
.link-under { display: block; text-align: center; margin-top: 16px; font-size: 13px; color: var(--text-muted); }
.link-under a { text-decoration: underline; }

/* PRODUCT DETAIL */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
@media (max-width: 768px) { .product-detail { grid-template-columns: 1fr; } }
.product-detail img { width: 100%; border-radius: 8px; background: #222; }
.product-detail .price-big {
  font-size: 32px;
  font-weight: 800;
  margin: 12px 0 24px;
  letter-spacing: 0.3px;
}
.size-options { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.size-btn {
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.size-btn.selected { border-color: var(--accent); background: var(--accent); color: #000; font-weight: 700; }

/* CART */
.cart-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.cart-item img { width: 80px; height: 80px; object-fit: cover; border-radius: 6px; background: #222; }
.cart-item .meta { flex: 1; }
.cart-item .meta .name { font-weight: 600; }
.cart-item .meta .detail { color: var(--text-muted); font-size: 13px; margin-top: 4px; }
.cart-summary {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  margin-top: 24px;
}
.cart-summary .total-row { display: flex; justify-content: space-between; font-size: 18px; font-weight: 700; margin: 16px 0; }

/* ORDERS / ADMIN TABLE */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); text-transform: uppercase; font-size: 11px; }
.status-pill { padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.status-pendiente { background: #3a2e00; color: #ffcf40; }
.status-pagado { background: #0c3320; color: var(--success); }

.iban-box {
  background: var(--bg-elev-2);
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 20px;
  margin: 20px 0;
  font-size: 14px;
  line-height: 1.6;
}
.iban-box strong { font-size: 16px; letter-spacing: 1px; }

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

.footer-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 60px;
}