:root {
  --brand-teal: #117e77;
  --brand-deep: #0b3b3a;
  --brand-gold: #e3b34b;
  --brand-orange: #d96a2b;
  --brand-cream: #f5e7c6;
  --bg: radial-gradient(900px 600px at -10% -10%, rgba(245,231,198,0.75) 0%, transparent 60%),
        radial-gradient(900px 600px at 110% 0%, rgba(17,126,119,0.12) 0%, transparent 60%),
        linear-gradient(180deg, #ffffff, #f8fafc);
  --panel: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(248,250,252,0.9));
  --glass: rgba(255,255,255,0.65);
  --glass-strong: rgba(255,255,255,0.86);
  --text: #0f172a;
  --muted: #64748b;
  --accent: var(--brand-teal);
  --border: 1px solid rgba(2,6,23,0.08);
  --shadow: 0 10px 30px rgba(2,6,23,0.08), inset 0 1px 0 rgba(255,255,255,0.6);
  --radius: 18px;
  --ok: #16a34a;
  --danger: #ef4444;
}

[data-theme="dark"] {
  --bg: radial-gradient(1200px 800px at 20% -10%, rgba(17,126,119,0.35) 0%, transparent 60%),
        radial-gradient(1000px 800px at 120% 10%, rgba(227,179,75,0.15) 0%, transparent 60%),
        linear-gradient(180deg, #0b1217, #0b1217);
  --panel: linear-gradient(180deg, #18222b, #0f1720);
  --glass: rgba(255,255,255,0.08);
  --glass-strong: rgba(255,255,255,0.14);
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: 1px solid rgba(255,255,255,0.15);
  --shadow: 0 10px 30px rgba(0,0,0,0.4), inset 0 1px 1px rgba(255,255,255,0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font: 15px/1.5 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial;
  color: var(--text);
  background-image: var(--bg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* Breadcrumbs */
.breadcrumbs {
  margin: 16px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  background: var(--glass);
  border: var(--border);
  border-radius: 999px;
}

.breadcrumbs .current {
  color: var(--text);
  background: transparent;
  padding: 0;
  box-shadow: none;
  border: none;
}

/* Layout */
.grid {
  display: grid;
  grid-template-columns: minmax(0,1fr) 360px;
  gap: 16px;
}

@media (max-width: 980px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

/* Cards */
.card {
  background: var(--glass);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Cart list */
.cart {
  padding: 14px;
}

.cart header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.cart h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
}

.progress {
  margin: 10px 0 0;
  background: var(--glass);
  border: var(--border);
  border-radius: 12px;
  overflow: hidden;
  height: 10px;
}

.progress .bar {
  height: 100%;
  background: linear-gradient(135deg, rgba(17,126,119,.95), rgba(11,59,58,.95));
  width: 0%;
}

.progress-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

.item {
  display: grid;
  grid-template-columns: 84px 1fr auto;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(2,6,23,0.08);
}

.item:last-child {
  border-bottom: none;
}

.thumb {
  width: 84px;
  height: 84px;
  border-radius: 12px;
  background: var(--panel);
  display: grid;
  place-items: center;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.thumb:hover {
  transform: scale(1.02);
}

.meta {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.name {
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s ease;
}

.name:hover {
  color: var(--accent);
}

.variant {
  font-size: 12px;
  color: var(--muted);
}

.controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.qty {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty button {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: var(--border);
  background: var(--glass);
  box-shadow: var(--shadow);
  font-size: 18px;
  cursor: pointer;
  color: var(--text);
  transition: background 0.2s ease;
}

.qty button:hover:not(:disabled) {
  background: var(--glass-strong);
}

.qty button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.qty input {
  width: 64px;
  text-align: center;
  border-radius: 10px;
  border: var(--border);
  background: var(--glass);
  color: var(--text);
  padding: 8px 10px;
  box-shadow: var(--shadow);
}

.remove {
  border-radius: 10px;
  border: var(--border);
  background: var(--glass);
  padding: 8px 10px;
  cursor: pointer;
  color: var(--text);
  transition: background 0.2s ease;
}

.remove:hover {
  background: var(--glass-strong);
}

.price {
  font-weight: 800;
}

/* Promo + notes */
.promo {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-top: 10px;
}

.promo input {
  padding: 10px 12px;
  border-radius: 12px;
  border: var(--border);
  background: var(--glass);
  color: var(--text);
}

.promo button {
  padding: 10px 14px;
  border-radius: 12px;
  border: var(--border);
  background: linear-gradient(135deg, rgba(17,126,119,.95), rgba(11,59,58,.95));
  color: #fff;
  cursor: pointer;
}

/* Summary */
.summary {
  padding: 14px;
  position: sticky;
  top: 84px;
}

.summary h2 {
  margin: 0 0 8px 0;
  font-size: 18px;
}

.sum-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(2,6,23,0.08);
}

.sum-row:last-child {
  border-bottom: none;
}

.sum-total {
  font-weight: 800;
  font-size: 18px;
}

.primary {
  width: 100%;
  margin-top: 10px;
  border-radius: 14px;
  border: var(--border);
  background: linear-gradient(135deg, rgba(17,126,119,.95), rgba(11,59,58,.95));
  padding: 14px 18px;
  font-weight: 800;
  cursor: pointer;
  color: #fff;
  transition: transform 0.2s ease;
}

.primary:hover {
  transform: translateY(-1px);
}

.primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.secondary {
  width: 100%;
  margin-top: 8px;
  border-radius: 14px;
  border: var(--border);
  background: var(--glass);
  padding: 12px 16px;
  cursor: pointer;
  color: var(--text);
  transition: background 0.2s ease;
}

.secondary:hover {
  background: var(--glass-strong);
}

.shipping {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.shipping select {
  padding: 10px 12px;
  border-radius: 12px;
  border: var(--border);
  background: var(--glass);
  color: var(--text);
}

.note {
  font-size: 12px;
  color: var(--muted);
}

/* Empty state */
.empty {
  display: grid;
  place-items: center;
  padding: 30px 12px;
  text-align: center;
}

.empty .big {
  font-size: 40px;
}

.empty a {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: var(--border);
  background: var(--glass);
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: background 0.2s ease;
}

.empty a:hover {
  background: var(--glass-strong);
}

/* Loading states */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--muted);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Error states */
.error-item {
  opacity: 0.7;
}

.error-item .name::after {
  content: ' ⚠️';
}

/* Success animations */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.pulse {
  animation: pulse 0.4s ease;
}

/* Mobile/responsive tweaks */
.pricebox {
  text-align: right;
}

@media (max-width: 980px) {
  .summary {
    position: static;
    top: auto;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 16px;
  }
  
  .grid {
    gap: 12px;
  }
  
  .cart {
    padding: 12px;
  }
  
  .cart header {
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .cart header .secondary {
    margin-left: auto;
  }
  
  .item {
    grid-template-columns: 64px 1fr;
    gap: 10px;
    align-items: start;
  }
  
  .thumb {
    width: 64px;
    height: 64px;
  }
  
  .pricebox {
    grid-column: 1 / -1;
    text-align: left;
    padding-left: 74px;
    margin-top: -6px;
  }
  
  .controls {
    flex-wrap: wrap;
  }
  
  .qty button {
    width: 36px;
    height: 36px;
  }
  
  .qty input {
    width: 56px;
  }
  
  .promo {
    grid-template-columns: 1fr;
  }
  
  .promo button {
    width: 100%;
  }
}

/* Dark mode form legibility */
select, input, textarea {
  color: var(--text);
}

.shipping select option {
  color: var(--text);
  background: var(--panel);
}

[data-theme="dark"] .shipping select {
  background: var(--glass-strong);
}

[hidden] {
  display: none !important;
}

button {
  color: var(--text);
}