/*
 * demo-site/assets/style.css
 *
 * Minimal, dependency-free styling. The demo SPA is deliberately
 * plain so operators and reviewers focus on auth behaviour rather
 * than UX polish. Accessibility:
 *   - High contrast (WCAG AA).
 *   - Focus outlines preserved.
 *   - Form labels wrap inputs (no for= dance needed in HTML).
 */

:root {
  --color-fg: #1a1a1a;
  --color-muted: #5a5a5a;
  --color-bg: #ffffff;
  --color-surface: #f7f7f7;
  --color-accent: #0058a3;
  --color-accent-fg: #ffffff;
  --color-error-bg: #fcebea;
  --color-error-fg: #8a0e0e;
  --color-success-bg: #e8f4ea;
  --color-success-fg: #0f6b24;
  --color-info-bg: #e8f0f7;
  --color-info-fg: #0a4177;
  --radius: 6px;
  --gap: 1rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-fg);
  background: var(--color-bg);
}

.container {
  max-width: 520px;
  margin: 2rem auto;
  padding: 0 1rem;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
}

.subtitle {
  margin: 0 0 0.75rem;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.region-indicator {
  margin: 0 0 1.5rem;
  padding: 0.5rem 0.6rem;
  background: var(--color-info-bg);
  color: var(--color-info-fg);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.region-indicator__row {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
}

.region-indicator__label {
  flex: 0 0 8.5rem;
  color: var(--color-muted);
  font-weight: 600;
  font-size: 0.78rem;
}

.region-indicator__warning {
  margin-top: 0.35rem;
  padding: 0.35rem 0.5rem;
  background: var(--color-error-bg);
  color: var(--color-error-fg);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.78rem;
  line-height: 1.35;
}

.tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 2px solid var(--color-surface);
  margin-bottom: 1rem;
}

.tab {
  flex: 1;
  padding: 0.75rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--color-muted);
}

.tab.active {
  color: var(--color-fg);
  border-bottom-color: var(--color-accent);
  font-weight: 600;
}

.tab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.panel {
  padding: 0.5rem 0;
}

.panel h2 {
  margin: 0 0 1rem;
  font-size: 1.25rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

input {
  padding: 0.6rem 0.75rem;
  border: 1px solid #d0d0d0;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
}

input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 0;
  border-color: var(--color-accent);
}

button {
  padding: 0.7rem 1rem;
  background: var(--color-accent);
  color: var(--color-accent-fg);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

button:hover:not(:disabled) {
  filter: brightness(0.95);
}

button:focus-visible {
  outline: 2px solid var(--color-fg);
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.button-row {
  display: flex;
  gap: 0.5rem;
}

.button-row button {
  flex: 1;
}

.button--secondary {
  background: transparent;
  color: var(--color-fg);
  border: 1px solid #d0d0d0;
}

.button--secondary:hover:not(:disabled) {
  background: var(--color-surface);
  filter: none;
}

.button--danger {
  background: #c93030;
  color: #fff;
  border: 1px solid #8a1f1f;
}

.button--danger:hover:not(:disabled) {
  background: #a82020;
  filter: none;
}

.banner--warn {
  background: #fff4d1;
  color: #5a3e00;
  border: 1px solid #d9a400;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin: 1rem 0;
}

.response-pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
  margin-top: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.hint {
  margin-top: 1rem;
  padding: 0.75rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.hint code {
  background: rgba(0, 0, 0, 0.06);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
}

/* Per-field help text under an input. Used by sign-up password /
   phone fields to surface the validation rules inline instead of
   dumping them in the bottom hint block. */
.field-hint {
  display: block;
  margin-top: 0.2rem;
  color: var(--color-muted);
  font-size: 0.75rem;
  line-height: 1.3;
}

.field-hint code {
  background: rgba(0, 0, 0, 0.06);
  padding: 0.05rem 0.2rem;
  border-radius: 3px;
  font-size: 0.75rem;
}

.banner {
  margin-top: 1.5rem;
  padding: 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.banner:empty {
  display: none;
}

.banner--error {
  background: var(--color-error-bg);
  color: var(--color-error-fg);
}

.banner--success {
  background: var(--color-success-bg);
  color: var(--color-success-fg);
}

.banner--info {
  background: var(--color-info-bg);
  color: var(--color-info-fg);
}

#session-status {
  padding: 1rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  margin-bottom: var(--gap);
  font-size: 0.9rem;
}

#session-status dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.25rem 0.75rem;
  margin: 0;
}

#session-status dt {
  font-weight: 600;
  color: var(--color-muted);
}

#session-status dd {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  word-break: break-all;
  font-size: 0.85rem;
}

footer {
  max-width: 520px;
  margin: 2rem auto;
  padding: 0 1rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}