/**
 * City page rules
 *
 * Light mode: soft minimalist from design_demos/city-demo2.html.
 * Dark mode: glass-style clock surface from design_demos/city-demo1.html,
 * adapted to a solid background.
 */

:root {
  color-scheme: light;
  --city-bg: #f8fafc;
  --city-surface: #ffffff;
  --city-surface-hover: #f8fafc;
  --city-text: #0f172a;
  --city-muted: #64748b;
  --city-tertiary: #94a3b8;
  --city-border: rgba(226, 232, 240, 0.9);
  --city-shadow: 0 10px 25px -5px rgba(148, 163, 184, 0.14);
  --city-soft-shadow: 0 4px 20px -2px rgba(148, 163, 184, 0.14);
  --city-accent: #4f46e5;
  --city-cyan: #0891b2;
  --city-violet: #7c3aed;
  --city-rose: #e11d48;
  --city-radius: 24px;
  --city-radius-sm: 12px;
  --city-max: 1024px;
  --city-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --city-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.dark {
  color-scheme: dark;
  --city-bg: #0f0c29;
  --city-surface: rgba(255, 255, 255, 0.06);
  --city-surface-hover: rgba(255, 255, 255, 0.1);
  --city-text: #f8fafc;
  --city-muted: #cbd5e1;
  --city-tertiary: #94a3b8;
  --city-border: rgba(255, 255, 255, 0.12);
  --city-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
  --city-soft-shadow: 0 0 40px rgba(0, 242, 254, 0.14);
  --city-accent: #00f2fe;
  --city-cyan: #00f2fe;
  --city-violet: #a855f7;
  --city-rose: #ff0055;
}

* {
  box-sizing: border-box;
}

.city-page-wrapper {
  min-height: 100vh;
  margin: 0;
  background: var(--city-bg);
  color: var(--city-text);
  font-family: var(--city-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.city-page-wrapper a {
  color: inherit;
}

.city-shell {
  width: min(var(--city-max), calc(100% - 32px));
  margin: 0 auto;
  padding: 104px 0 64px;
}

.city-back-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-bottom: 20px;
  color: var(--city-muted);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 150ms ease, transform 150ms ease;
}

.city-back-link::before {
  content: "←";
  margin-right: 8px;
}

.city-back-link:hover {
  color: var(--city-text);
  transform: translateX(-2px);
}

.city-hero-card,
.info-card,
.city-guide-card,
.city-guide-links a {
  background: var(--city-surface);
  border: 1px solid var(--city-border);
  border-radius: var(--city-radius);
  box-shadow: var(--city-shadow);
}

.dark .city-hero-card,
.dark .info-card,
.dark .city-guide-card,
.dark .city-guide-links a {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.city-hero-card {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 28px;
  padding: 48px;
  text-align: center;
}

.city-title-block {
  max-width: 720px;
}

.city-eyebrow {
  margin: 0 0 10px;
  color: var(--city-muted);
  font-size: 0.875rem;
  font-weight: 600;
}

.dark .city-eyebrow {
  color: var(--city-cyan);
}

.city-title-block h1 {
  margin: 0;
  color: var(--city-text);
  font-size: clamp(2.5rem, 8vw, 4.25rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
}

.city-subtitle {
  margin: 12px 0 0;
  color: var(--city-muted);
  font-size: 1rem;
}

.clock-container {
  position: relative;
  width: min(320px, calc(100vw - 96px));
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 9999px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: var(--city-soft-shadow), inset 0 2px 10px rgba(0, 0, 0, 0.02);
}

.dark .clock-container {
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid rgba(0, 242, 254, 0.28);
  box-shadow: var(--city-soft-shadow), inset 0 0 20px rgba(0, 242, 254, 0.08);
}

#analog-clock {
  display: block;
  width: 100%;
  height: 100%;
}

.digital-time {
  text-align: center;
}

.digital-time-number {
  color: var(--city-text);
  font-family: var(--city-mono);
  font-size: clamp(2.75rem, 8vw, 4.75rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.dark .digital-time-number {
  color: #ffffff;
  text-shadow: 0 0 10px rgba(0, 242, 254, 0.45);
}

.digital-time-number span {
  color: var(--city-tertiary);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 400;
}

.digital-time-date {
  margin-top: 12px;
  color: var(--city-muted);
  font-size: 0.9375rem;
}

.format-toggle {
  position: absolute;
  right: 24px;
  top: 24px;
  min-width: 56px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--city-border);
  border-radius: 9999px;
  background: var(--city-surface-hover);
  color: var(--city-muted);
  font: 700 0.8125rem/1 var(--city-mono);
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}

.format-toggle:hover {
  color: var(--city-text);
  border-color: var(--city-accent);
}

.info-section {
  margin-top: 24px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.info-card {
  padding: 28px;
}

.info-card h2,
.city-guide-card h3 {
  margin: 0 0 20px;
  color: var(--city-text);
  font-size: 1rem;
  line-height: 1.35;
  font-weight: 700;
}

.info-card h2 {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-dot {
  width: 8px;
  height: 8px;
  border-radius: 9999px;
  flex: 0 0 auto;
}

.card-dot--cyan { background: var(--city-cyan); }
.card-dot--violet { background: var(--city-violet); }
.card-dot--rose { background: var(--city-rose); }

.dark .card-dot--cyan { box-shadow: 0 0 10px rgba(0, 242, 254, 0.7); }
.dark .card-dot--violet { box-shadow: 0 0 10px rgba(168, 85, 247, 0.7); }
.dark .card-dot--rose { box-shadow: 0 0 10px rgba(255, 0, 85, 0.7); }

.info-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.info-card li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--city-border);
  color: var(--city-muted);
  font-size: 0.875rem;
}

.info-card li:last-child {
  border-bottom: 0;
}

.info-card strong {
  color: var(--city-text);
  font-family: var(--city-mono);
  font-size: 0.875rem;
  font-weight: 700;
  text-align: right;
}

.info-card p,
.city-guide-intro p,
.city-guide-card p {
  margin: 0;
  color: var(--city-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.info-card p + p {
  margin-top: 14px;
}

.action-links {
  display: grid;
  gap: 12px;
}

.action-link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 12px 14px;
  border: 1px solid var(--city-border);
  border-radius: var(--city-radius-sm);
  background: var(--city-surface-hover);
  color: var(--city-text);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}

.action-link:hover {
  border-color: var(--city-accent);
  transform: translateX(2px);
}

.city-guide-section {
  margin-top: 40px;
}

.city-guide-intro {
  max-width: 760px;
  margin-bottom: 24px;
}

.city-guide-kicker {
  margin: 0 0 8px;
  color: var(--city-accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.city-guide-intro h2 {
  margin: 0 0 14px;
  color: var(--city-text);
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.2;
}

.city-guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.city-guide-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.city-guide-card {
  padding: 24px;
  border-radius: var(--city-radius-sm);
  box-shadow: none;
}

.city-guide-card h3 {
  margin-bottom: 10px;
}

.city-guide-link-card {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: border-color 150ms ease, background 150ms ease;
}

.city-guide-link-card:hover {
  border-color: var(--city-accent);
  background: var(--city-surface-hover);
}

.city-guide-link-card strong {
  display: block;
  color: var(--city-accent);
  font-size: 0.9375rem;
  line-height: 1.4;
}

.city-guide-link-card span {
  display: block;
  margin-top: 6px;
  color: var(--city-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.city-guide-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.city-guide-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: var(--city-radius-sm);
  color: var(--city-accent);
  font-size: 0.875rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  box-shadow: none;
  transition: border-color 150ms ease, background 150ms ease;
}

.city-guide-links a strong,
.city-guide-links a span {
  display: block;
}

.city-guide-links a span {
  margin-top: 4px;
  color: var(--city-muted);
  font-weight: 500;
}

.city-guide-links a:hover {
  border-color: var(--city-accent);
  background: var(--city-surface-hover);
}

@media (max-width: 900px) {
  .city-shell {
    padding-top: 88px;
  }

  .city-hero-card {
    padding: 36px 24px;
  }

  .info-grid,
  .city-guide-grid,
  .city-guide-grid--two,
  .city-guide-links {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .city-shell {
    width: min(100% - 24px, var(--city-max));
  }

  .city-hero-card,
  .info-card {
    border-radius: 18px;
  }

  .city-hero-card {
    padding: 48px 18px 28px;
  }

  .format-toggle {
    right: 16px;
    top: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}