/* ── Cart page — airy surfaces, no boxy borders ── */

:root {
  --cart-ink: #161c24;
  --cart-ink-muted: #637381;
  --cart-ink-faint: #919eab;
  --cart-surface: #ffffff;
  --cart-surface-muted: #f6f8fa;
  --cart-accent: #1e3a8a;
  --cart-accent-hover: #1e40af;
  --cart-radius-lg: 20px;
  --cart-radius-md: 12px;
  --cart-shadow: 0 20px 50px -24px rgba(22, 28, 36, 0.18);
  --cart-shadow-soft: 0 8px 30px -18px rgba(22, 28, 36, 0.12);
}

body.cart-page {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--cart-ink);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(30, 58, 138, 0.06), transparent),
    #f4f6f8;
  -webkit-font-smoothing: antialiased;
}

body.cart-page .main-navbar.cart-navbar {
  box-shadow: none;
  border-bottom: none;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
}

.cart-brand-link {
  color: inherit;
  text-decoration: none;
}

.cart-brand-link:hover {
  color: inherit;
  opacity: 0.85;
}

/* ── Layout ── */

.cart-layout {
  max-width: 1080px;
  margin: 0 auto;
  padding: 3.5rem 1.75rem 5rem;
}

.cart-hero {
  margin-bottom: 2.75rem;
  max-width: 36rem;
}

.cart-eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cart-accent);
}

.cart-page-title {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--cart-ink);
}

.cart-page-subtitle {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--cart-ink-muted);
  font-weight: 400;
}

.cart-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 2rem;
  align-items: start;
}

/* ── Surfaces (shadow + radius, no hard borders) ── */

.cart-surface {
  border-radius: var(--cart-radius-lg);
  background: var(--cart-surface);
  box-shadow: var(--cart-shadow);
  padding: 2rem 2.25rem;
}

.cart-surface--summary {
  position: sticky;
  top: 1.5rem;
  background: var(--cart-surface-muted);
  box-shadow: var(--cart-shadow-soft);
  padding: 1.75rem 1.85rem;
}

.cart-section-label {
  margin: 0 0 1.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cart-ink-faint);
}

/* ── Empty state ── */

.cart-empty {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
}

.cart-empty__visual {
  width: 88px;
  height: 88px;
  margin: 0 auto 1.75rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #eef2ff 0%, #f8fafc 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.cart-empty__icon {
  width: 36px;
  height: 36px;
  color: #94a3b8;
  stroke-width: 1.25;
}

.cart-empty h2 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--cart-ink);
}

.cart-empty p {
  margin: 0 0 2rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--cart-ink-muted);
}

.cart-empty .cart-btn {
  width: auto;
  min-width: 200px;
  margin: 0 auto;
}

/* ── Line items ── */

.cart-item {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 1.25rem 1.5rem;
  padding: 1.75rem 0;
}

.cart-item + .cart-item {
  border-top: 1px solid rgba(145, 158, 171, 0.14);
}

.cart-item:first-child {
  padding-top: 0;
}

.cart-item:last-child {
  padding-bottom: 0;
}

.cart-item__thumb {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: linear-gradient(160deg, #f0f4ff, #fafbfc);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem;
}

.cart-item__thumb img {
  width: 100%;
  height: auto;
  opacity: 0.9;
}

.cart-item__title {
  margin: 0 0 0.3rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--cart-ink);
}

.cart-item__meta {
  margin: 0;
  font-size: 0.875rem;
  color: var(--cart-ink-muted);
}

.cart-item__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.65rem;
}

.cart-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.28rem 0.6rem;
  border-radius: 6px;
  background: rgba(30, 58, 138, 0.08);
  color: var(--cart-accent);
}

.cart-item__controls {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.85rem;
  min-width: 110px;
}

.cart-item__price {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--cart-ink);
}

.cart-qty {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 3px;
  border-radius: 999px;
  background: var(--cart-surface-muted);
}

.cart-qty button {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--cart-ink-muted);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.cart-qty button:hover {
  background: rgba(22, 28, 36, 0.06);
  color: var(--cart-ink);
}

.cart-qty input {
  width: 2.25rem;
  height: 30px;
  border: none;
  background: transparent;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--cart-ink);
  -moz-appearance: textfield;
}

.cart-qty input::-webkit-outer-spin-button,
.cart-qty input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.cart-item__remove {
  border: none;
  background: none;
  color: var(--cart-ink-faint);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
  transition: color 0.15s ease;
}

.cart-item__remove:hover {
  color: #b42318;
}

/* ── Summary ── */

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.65rem;
  font-size: 0.9375rem;
  color: var(--cart-ink-muted);
}

.cart-summary-row--total {
  margin: 1.25rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(145, 158, 171, 0.16);
  color: var(--cart-ink);
  font-size: 1.0625rem;
  font-weight: 600;
}

.cart-summary-note {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--cart-ink-faint);
}

.cart-summary-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* ── Buttons ── */

.cart-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 0.9rem 1.25rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.cart-btn--primary {
  background: var(--cart-accent);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(30, 58, 138, 0.45);
}

.cart-btn--primary:hover {
  background: var(--cart-accent-hover);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -6px rgba(30, 58, 138, 0.4);
}

.cart-btn--primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.cart-btn--secondary {
  background: transparent;
  color: var(--cart-ink-muted);
  box-shadow: none;
}

.cart-btn--secondary:hover {
  background: rgba(22, 28, 36, 0.04);
  color: var(--cart-ink);
  text-decoration: none;
}

/* ── Alerts (borderless tinted blocks) ── */

.cart-alert {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: var(--cart-radius-md);
  font-size: 0.8125rem;
  line-height: 1.55;
}

.cart-alert--info {
  background: rgba(30, 58, 138, 0.06);
  color: #334155;
}

.cart-alert--warning {
  background: rgba(180, 83, 9, 0.08);
  color: #78350f;
}

.cart-checkout-panel {
  margin-top: 2rem;
  padding: 2rem 2.25rem;
  border-radius: var(--cart-radius-lg);
  background: var(--cart-surface);
  box-shadow: var(--cart-shadow);
}

.cart-checkout-panel #checkout {
  min-height: 420px;
}

/* ── Nav ── */

.cart-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  color: var(--cart-ink-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.cart-nav-link:hover {
  background: rgba(22, 28, 36, 0.05);
  color: var(--cart-ink);
  text-decoration: none;
}

.cart-nav-link--active {
  color: var(--cart-ink);
  background: rgba(22, 28, 36, 0.06);
}

.cart-nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.125rem;
  height: 1.125rem;
  padding: 0 0.3rem;
  border-radius: 999px;
  background: var(--cart-accent);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
}

.cart-nav-badge[hidden] {
  display: none;
}

/* ── Responsive ── */

@media (max-width: 900px) {
  .cart-layout {
    padding: 2.25rem 1.25rem 3.5rem;
  }

  .cart-hero {
    margin-bottom: 2rem;
  }

  .cart-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .cart-surface {
    padding: 1.5rem 1.35rem;
  }

  .cart-surface--summary {
    position: static;
  }

  .cart-item {
    grid-template-columns: 56px 1fr;
  }

  .cart-item__controls {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding-top: 0.25rem;
  }
}