/* ─── PREORDER PAGE STYLES ───────────────────────────────────── */

/* Main layout offset for fixed nav */
.checkout-main {
  padding-top: 68px;
}

/* ─── PAGE HEADER ─────────────────────────────────────────────── */
.checkout-header {
  padding-block: clamp(var(--space-10), 5vw, var(--space-20));
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  transition: color var(--transition);
}
.back-link:hover { color: var(--color-accent); }
.back-link svg { width: 16px; height: 16px; }

.checkout-header-text { max-width: 680px; }

.checkout-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  margin-top: var(--space-2);
}

.checkout-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 60ch;
  margin-bottom: var(--space-6);
}

/* Founding Notice Banner */
.founding-notice {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  max-width: 640px;
}
[data-theme="dark"] .founding-notice {
  background: rgba(196, 137, 42, 0.12);
  border-color: rgba(196, 137, 42, 0.4);
}
.founding-notice-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}
.founding-notice-icon svg { width: 100%; height: 100%; }
.founding-notice strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.founding-notice p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
  max-width: none;
}

/* ─── CHECKOUT BODY ───────────────────────────────────────────── */
.checkout-body {
  padding-block: clamp(var(--space-10), 5vw, var(--space-20));
}

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-12);
  align-items: start;
}

@media (max-width: 960px) {
  .checkout-layout {
    grid-template-columns: 1fr;
  }
  /* Move summary above form on mobile */
  .checkout-summary {
    order: -1;
  }
}

/* ─── CHECKOUT STEPS ──────────────────────────────────────────── */
.checkout-step {
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
}
.checkout-step:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.step-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #FFF8EE;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 1;
}

.step-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.2;
}

/* ─── TIER SELECTOR ───────────────────────────────────────────── */
.tier-selector {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.tier-option {
  position: relative;
  cursor: pointer;
  display: block;
}

.tier-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.tier-option-inner {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  background: var(--color-surface);
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.tier-option:hover .tier-option-inner {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

[data-theme="dark"] .tier-option:hover .tier-option-inner {
  background: rgba(196, 137, 42, 0.06);
}

.tier-option input:checked + .tier-option-inner,
.tier-option input:checked ~ .tier-option-inner {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
  box-shadow: 0 0 0 1px var(--color-accent);
}

[data-theme="dark"] .tier-option input:checked + .tier-option-inner,
[data-theme="dark"] .tier-option input:checked ~ .tier-option-inner {
  background: rgba(196, 137, 42, 0.1);
}

/* Featured tier */
.tier-option--featured .tier-option-inner {
  border-color: var(--color-gold);
}
.tier-option--featured input:checked + .tier-option-inner,
.tier-option--featured input:checked ~ .tier-option-inner {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 1px var(--color-gold);
}

.tier-option-badge {
  position: absolute;
  top: -11px;
  left: var(--space-6);
  background: var(--color-gold);
  color: #1A1000;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 3px var(--space-3);
  border-radius: 999px;
  white-space: nowrap;
  z-index: 1;
}

.tier-option-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.tier-option-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.tier-option-price {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}
[data-theme="dark"] .tier-option-price { color: var(--color-gold); }

.tier-option-price span {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-text-muted);
}

/* Check circle */
.tier-option-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color var(--transition), background var(--transition);
  margin-top: 2px;
}
.tier-option-check svg {
  width: 14px; height: 14px;
  opacity: 0;
  transition: opacity var(--transition);
  color: #FFF8EE;
}

.tier-option input:checked + .tier-option-inner .tier-option-check,
.tier-option input:checked ~ .tier-option-inner .tier-option-check {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.tier-option input:checked + .tier-option-inner .tier-option-check svg,
.tier-option input:checked ~ .tier-option-inner .tier-option-check svg {
  opacity: 1;
}

/* Tier list */
.tier-option-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}
.tier-option-list li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}
.tier-option-list li::before {
  content: '—';
  color: var(--color-gold);
  flex-shrink: 0;
}
.tier-option-list li:last-child { border-bottom: none; }

.tier-option-deposit {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
  margin-top: var(--space-2);
}

/* ─── CHECKOUT FORM ───────────────────────────────────────────── */
.checkout-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row-sm {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 480px) {
  .form-row-sm { grid-template-columns: 1fr; }
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
  line-height: 1.6;
}

.field-hint {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-1);
}

.field-error {
  font-size: var(--text-xs);
  color: #c0392b;
  font-weight: 500;
  margin-top: var(--space-1);
}
.field-error[hidden] { display: none; }

.form-required {
  color: var(--color-accent);
}

.form-input:user-invalid,
.form-input.error {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}

/* ─── DEPOSIT EXPLAINER ───────────────────────────────────────── */
.deposit-explainer {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.deposit-amount-display {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.deposit-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.deposit-figure {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
}
[data-theme="dark"] .deposit-figure { color: var(--color-gold); }

.deposit-note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: none;
}

/* ─── PAYMENT BOX ─────────────────────────────────────────────── */
.payment-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.payment-stripe-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.stripe-wordmark {
  width: 48px;
  color: var(--color-text-faint);
}

.stripe-secure-label {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

/* Stripe Setup Notice */
.stripe-setup-notice {
  margin-bottom: var(--space-5);
}
.setup-notice-inner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-accent-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
[data-theme="dark"] .setup-notice-inner {
  background: rgba(196, 137, 42, 0.08);
  border-color: rgba(196, 137, 42, 0.25);
}
.setup-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: var(--color-gold);
}
.setup-icon svg { width: 100%; height: 100%; }
.setup-text strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.setup-text p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: none;
}
.setup-text a {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Stripe Card Element mount point */
.stripe-element-mount {
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  min-height: 48px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.stripe-element-mount:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

/* Secure pay notice */
.secure-pay-notice {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
  margin-bottom: var(--space-5);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.secure-pay-notice svg {
  color: var(--color-green);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Submit button */
.co-submit-btn {
  width: 100%;
  margin-top: var(--space-2);
  gap: var(--space-2);
}

.co-fine {
  text-align: center;
  margin-top: var(--space-4);
  line-height: 1.65;
}
.co-fine a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ─── CHECKOUT SUMMARY (right column) ────────────────────────── */
.checkout-summary {
  position: sticky;
  top: 88px;
}

.summary-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  overflow: hidden;
}

.summary-header {
  margin-bottom: var(--space-5);
}

.summary-tier {
  margin-bottom: var(--space-4);
}

.summary-tier-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.summary-tier-price {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
}
[data-theme="dark"] .summary-tier-price { color: var(--color-gold); }

.summary-includes { margin-bottom: var(--space-4); }
.summary-includes-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.summary-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.summary-list li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-1) 0;
}
.summary-list li::before {
  content: '·';
  color: var(--color-gold);
  font-size: 1.1em;
  flex-shrink: 0;
  line-height: 1.4;
}

.summary-divider {
  height: 1px;
  background: var(--color-border);
  margin-block: var(--space-4);
}

.summary-line-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.summary-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
}
.summary-line--muted {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-weight: 400;
}
.summary-line--note {
  font-style: italic;
}

.summary-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: var(--space-1);
}
.summary-total span:first-child {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
}
.summary-total-amount {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
}
[data-theme="dark"] .summary-total-amount { color: var(--color-gold); }

.summary-badges {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.summary-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
}
.summary-badge svg { color: var(--color-green); flex-shrink: 0; }

.summary-qr-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.summary-qr-mini {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  color: var(--color-text-faint);
  opacity: 0.6;
}
.summary-qr-note p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
  max-width: none;
}

/* ─── SUCCESS STATE ───────────────────────────────────────────── */
.checkout-success {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.success-inner {
  max-width: 600px;
  margin-inline: auto;
  text-align: center;
}

.success-mark {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-8);
  color: var(--color-green);
}
.success-mark svg { width: 100%; height: 100%; }

.success-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.success-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 52ch;
  margin-inline: auto;
}
.success-body a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }
.success-body strong { color: var(--color-text); }

.success-details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.success-detail-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.success-detail-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.success-detail-label {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  font-weight: 500;
}
.success-detail-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.success-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn--outline:hover {
  background: var(--color-accent);
  color: #FFF8EE;
  transform: translateY(-2px);
}

/* ─── RESPONSIVE ADJUSTMENTS ──────────────────────────────────── */
@media (max-width: 640px) {
  .checkout-header { padding-block: var(--space-8); }
  .checkout-title { font-size: var(--text-xl); }
  .founding-notice { flex-direction: column; gap: var(--space-3); }
  .founding-notice-icon { width: 28px; height: 28px; }
  .tier-option-inner { padding: var(--space-5); }
  .payment-box { padding: var(--space-5); }
  .summary-card { padding: var(--space-5); }
  .success-actions { flex-direction: column; align-items: stretch; }
  .success-actions .btn { text-align: center; }
}