:root {
  --amarillo: #F5D820;
  --negro: #111111;
  --gris-claro: #f7f7f7;
  --gris-borde: #e0e0e0;
  --verde-whatsapp: #25D366;
  --rojo: #c0392b;
  --verde: #1e8449;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--negro);
  background: #fff;
}

.topbar { background: var(--amarillo); }
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
}
.topbar-inner h1 { margin: 0; font-size: 1.4rem; letter-spacing: 0.5px; }
.cart-icon { font-size: 1.4rem; }
.topnav { padding: 10px 20px 16px; display: flex; gap: 12px; flex-wrap: wrap; }
.topnav a {
  display: inline-block;
  padding: 8px 16px;
  background: transparent;
  border: 1.5px solid var(--negro);
  border-radius: 6px;
  color: var(--negro);
  text-decoration: none;
  font-size: 0.9rem;
}

.product, .thankyou, .admin-main { max-width: 520px; margin: 0 auto; padding: 24px 20px 100px; }

.product-image { text-align: center; margin-bottom: 20px; }
.product-image img { max-width: 220px; width: 100%; }

.unit-price { font-size: 1.3rem; margin-bottom: 8px; }
.tiers { margin: 0 0 20px; padding-left: 20px; }
.tiers li { margin-bottom: 4px; }

.description { line-height: 1.6; margin-bottom: 24px; }

.stock-info { color: #555; font-size: 0.9rem; margin-bottom: 12px; }
.agotado {
  background: #fbeaea; color: var(--rojo); padding: 12px 16px;
  border-radius: 8px; font-weight: 600; margin-bottom: 20px;
}

.order-form { display: flex; flex-direction: column; gap: 14px; }
.order-form label { display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; font-weight: 600; }
.order-form input, .order-form textarea {
  padding: 12px; border: 1.5px solid var(--gris-borde); border-radius: 8px;
  font-size: 1rem; font-family: inherit;
}
.order-form input:focus, .order-form textarea:focus { outline: none; border-color: var(--negro); }

.total-preview { font-size: 1.1rem; font-weight: 700; }

.btn-add {
  background: var(--negro); color: #fff; border: none;
  padding: 16px; border-radius: 8px; font-size: 1rem; font-weight: 700;
  cursor: pointer; margin-top: 8px;
}
.btn-add:hover { background: #333; }

.shipping-note {
  margin-top: 20px; padding: 12px 16px; background: var(--gris-claro);
  border-radius: 8px; text-align: center; font-size: 0.9rem;
}

.whatsapp-float {
  position: fixed; bottom: 20px; left: 20px;
  background: var(--verde-whatsapp); width: 52px; height: 52px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; text-decoration: none; box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}

.thankyou h1 { margin-top: 0; }
.order-summary {
  background: var(--gris-claro); padding: 16px; border-radius: 8px; margin: 16px 0;
}
.order-summary p { margin: 4px 0; }

.login-box { max-width: 360px; margin: 60px auto; padding: 24px; }
.login-box h1 { font-size: 1.3rem; text-align: center; }

.error-msg { color: var(--rojo); font-weight: 600; }
.success-msg { color: var(--verde); font-weight: 600; background: #eafaf1; padding: 10px 14px; border-radius: 8px; }

.stock-summary { margin-bottom: 16px; }

.orders-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.orders-table th, .orders-table td {
  border: 1px solid var(--gris-borde); padding: 8px; text-align: left; vertical-align: top;
}
.orders-table th { background: var(--gris-claro); }

.badge { padding: 3px 8px; border-radius: 12px; font-size: 0.75rem; font-weight: 700; }
.badge-pendiente { background: #fff3cd; color: #856404; }
.badge-pagado { background: #d4edda; color: var(--verde); }
.badge-cancelado { background: #f8d7da; color: var(--rojo); }

.btn-small {
  border: none; padding: 6px 10px; border-radius: 6px; font-size: 0.78rem;
  cursor: pointer; margin: 2px 0; display: block; width: 100%;
}
.btn-pagar { background: var(--negro); color: #fff; }
.btn-cancelar { background: #f0f0f0; color: var(--negro); }

@media (max-width: 480px) {
  .admin-main { padding: 16px 12px; }
  .orders-table { display: block; overflow-x: auto; white-space: nowrap; }
}