/* AI0 Keys Room — Dark premium tech, same-room design */

:root {
  --kr-bg: #0f1419;
  --kr-bg-soft: #1a2332;
  --kr-surface: #151d28;
  --kr-surface-soft: #1e2a38;
  --kr-border: #2d3a4a;
  --kr-border-focus: #3d4f66;
  --kr-text: #f0f4f8;
  --kr-text-soft: #94a3b8;
  --kr-text-faint: #64748b;
  --kr-accent: #3b82f6;
  --kr-accent-hover: #2563eb;
  --kr-success: #22c55e;
  --kr-danger: #ef4444;
  --kr-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --kr-shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.4);
  --kr-glow: 0 0 40px rgba(59, 130, 246, 0.08);
  --kr-radius: 12px;
  --kr-radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--kr-bg);
  color: var(--kr-text);
  font-family: "DM Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
}

.kr-page {
  min-height: 100vh;
  padding: 32px 20px;
}

.kr-shell {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}

/* Hero */
.kr-hero {
  text-align: center;
  margin-bottom: 40px;
}

.kr-brand {
  display: inline-block;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--kr-accent);
  margin-bottom: 8px;
}

.kr-title {
  margin: 0 0 8px;
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--kr-text);
}

.kr-lead {
  margin: 0;
  font-size: 1rem;
  color: var(--kr-text-soft);
}

.kr-tagline {
  margin: 12px 0 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--kr-text);
}

/* 2-column layout */
.kr-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .kr-columns {
    grid-template-columns: 1fr;
  }
}

/* Left column */
.kr-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Cards */
.kr-card {
  background: var(--kr-surface);
  border: 1px solid var(--kr-border);
  border-radius: var(--kr-radius);
  box-shadow: var(--kr-shadow);
  padding: 24px;
}

.kr-card-pay {
  box-shadow: var(--kr-shadow-lg), var(--kr-glow);
}

.kr-card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--kr-text);
}

.kr-card-sub {
  font-size: 0.875rem;
  color: var(--kr-text-soft);
  margin: 0 0 20px;
}

.kr-list {
  margin: 0 0 12px;
  padding-left: 20px;
  color: var(--kr-text-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.kr-list li {
  margin-bottom: 4px;
}

.kr-list-plain {
  list-style: none;
  padding-left: 0;
}

.kr-list-steps {
  list-style: none;
  padding-left: 0;
}

.kr-list-steps li::before {
  content: "→ ";
  color: var(--kr-accent);
}

.kr-note {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--kr-text-faint);
  line-height: 1.5;
}

/* Order summary */
.kr-order-summary {
  background: var(--kr-surface-soft);
  border: 1px solid var(--kr-border);
  border-radius: var(--kr-radius-sm);
  padding: 16px;
  margin-bottom: 24px;
}

.kr-order-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9375rem;
  padding: 4px 0;
}

.kr-order-row span:first-child {
  color: var(--kr-text-soft);
}

.kr-order-total {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--kr-border);
  font-weight: 600;
  font-size: 1.125rem;
}

.kr-order-total span:last-child {
  color: var(--kr-success);
}

/* Payment section */
.kr-payment-section {
  margin-bottom: 20px;
}

.kr-or-divider {
  text-align: center;
  font-size: 0.875rem;
  color: var(--kr-text-faint);
  margin: 0 0 16px;
}

.kr-stripe-container {
  background: var(--kr-bg-soft);
  border: 1px solid var(--kr-border);
  border-radius: var(--kr-radius-sm);
  padding: 16px;
  margin-bottom: 20px;
  min-height: 140px;
}

/* Stripe dark theme */
.kr-stripe-container .StripeElement,
.kr-stripe-container iframe {
  font-family: inherit !important;
}

/* Buttons */
.kr-btn {
  width: 100%;
  border: 0;
  outline: 0;
  cursor: pointer;
  padding: 14px 24px;
  border-radius: var(--kr-radius-sm);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  transition: background 0.15s ease, opacity 0.15s ease, border-color 0.15s ease;
}

.kr-btn-primary {
  background: var(--kr-accent);
  color: white;
}

.kr-btn-primary:hover:not(:disabled) {
  background: var(--kr-accent-hover);
}

.kr-btn-secondary {
  background: transparent;
  color: var(--kr-text-soft);
  border: 1px solid var(--kr-border);
}

.kr-btn-secondary:hover:not(:disabled) {
  border-color: var(--kr-border-focus);
  color: var(--kr-text);
}

.kr-btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.kr-terms {
  margin: 16px 0 0;
  font-size: 0.8125rem;
  color: var(--kr-text-faint);
  line-height: 1.5;
}

.kr-secure-note {
  margin: 12px 0 0;
  font-size: 0.8125rem;
  color: var(--kr-success);
  text-align: center;
}

.kr-lock {
  margin-right: 4px;
}

.kr-secondary-pay {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--kr-border);
}

/* Loading */
.kr-loading {
  text-align: center;
  padding: 40px 0;
}

.kr-spinner {
  width: 32px;
  height: 32px;
  margin: 0 auto 16px;
  border: 3px solid var(--kr-border);
  border-top-color: var(--kr-accent);
  border-radius: 50%;
  animation: kr-spin 0.8s linear infinite;
}

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

.kr-loading p {
  margin: 0;
  color: var(--kr-text-soft);
  font-size: 0.9375rem;
}

.kr-unavailable p,
.kr-outage p {
  margin: 0;
  color: #D4C4A8;
  font-size: 0.9375rem;
}

/* Unavailable (billing disabled) */
.kr-unavailable {
  text-align: center;
  padding: 40px 0;
}

.kr-hint {
  margin-top: 8px !important;
  font-size: 0.875rem !important;
  color: #D4C4A8 !important;
}

/* Outage (temp) */
.kr-outage {
  text-align: center;
  padding: 40px 0;
}

.kr-outage #retryBtn {
  margin-top: 16px;
  width: auto;
  padding: 10px 24px;
}

/* Notice */
.kr-notice {
  margin-top: 20px;
  padding: 12px 16px;
  border-radius: var(--kr-radius-sm);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.kr-notice-hidden {
  display: none;
}

.kr-notice-info {
  background: rgba(59, 130, 246, 0.15);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.kr-notice-warn {
  background: rgba(212, 196, 168, 0.2);
  color: #D4C4A8;
  border: 1px solid rgba(212, 196, 168, 0.4);
}

.kr-notice-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* API Reference */
.kr-api-ref {
  background: var(--kr-surface);
  border: 1px solid var(--kr-border);
  border-radius: var(--kr-radius);
  padding: 24px;
  margin-bottom: 32px;
}

.kr-api-section {
  margin-bottom: 20px;
}

.kr-code-label {
  font-size: 0.8125rem;
  color: var(--kr-text-faint);
  margin-bottom: 8px;
}

.kr-code-block {
  position: relative;
  background: #0d1117;
  color: #e6edf3;
  border-radius: var(--kr-radius-sm);
  padding: 16px;
  font-family: ui-monospace, "SF Mono", Monaco, monospace;
  font-size: 0.8125rem;
  overflow-x: auto;
  border: 1px solid var(--kr-border);
}

.kr-code-block pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
}

.kr-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--kr-surface-soft);
  color: var(--kr-text-soft);
  border: 1px solid var(--kr-border);
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
}

.kr-copy-btn:hover {
  color: var(--kr-text);
  border-color: var(--kr-border-focus);
}

.kr-api-meta {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--kr-border);
}

.kr-api-meta p {
  margin: 0 0 8px;
  font-size: 0.875rem;
  color: var(--kr-text-soft);
}

/* Footer */
.kr-footer {
  text-align: center;
}

.kr-footer p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--kr-text-faint);
}

.kr-footer-legal {
  margin-top: 8px !important;
  font-size: 0.75rem !important;
  opacity: 0.9;
}

.kr-shown-once {
  margin: 8px 0 0;
  font-size: 0.75rem;
  color: var(--kr-text-faint);
}

.kr-key-box {
  position: relative;
}

.kr-success-actions {
  display: flex;
  flex-direction: column;
}

/* Success / order card (keys-success.html) */
.kr-order-card {
  background: var(--kr-surface);
  border: 1px solid var(--kr-border);
  border-radius: var(--kr-radius);
  box-shadow: var(--kr-shadow);
  padding: 28px;
}

.kr-badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.kr-badge-neutral {
  background: var(--kr-surface-soft);
  color: var(--kr-text-soft);
  border: 1px solid var(--kr-border);
}

.kr-badge-live {
  background: rgba(34, 197, 94, 0.2);
  color: var(--kr-success);
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.kr-badge-review {
  background: rgba(245, 158, 11, 0.2);
  color: #fcd34d;
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.kr-badge-danger {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.kr-order-title { font-size: 1.25rem; font-weight: 600; color: var(--kr-text); }
.kr-order-copy { margin: 8px 0 0; font-size: 0.9375rem; color: var(--kr-text-soft); line-height: 1.5; }
.kr-divider { height: 1px; background: var(--kr-border); margin: 24px 0; }

/* Utility */
.kr-hidden {
  display: none !important;
}