:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-2: #eef0f6;
  --text: #1a1d29;
  --text-muted: #5b6072;
  --border: #e1e3ec;
  --accent: #2d5bff;

  --open-bg: #e6f7ee;
  --open-text: #0e7a45;
  --open-dot: #1fb264;

  --closed-bg: #f5f0f0;
  --closed-text: #8a8f9c;
  --closed-dot: #b8bcc8;

  --break-bg: #fff4e0;
  --break-text: #a6650a;
  --break-dot: #f0a03c;

  --shadow: 0 1px 2px rgba(20, 22, 40, 0.04), 0 8px 24px rgba(20, 22, 40, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12131c;
    --surface: #1b1d2a;
    --surface-2: #23263788;
    --text: #eef0f8;
    --text-muted: #9a9fb3;
    --border: #2c2f42;
    --accent: #6f8dff;

    --open-bg: #103524;
    --open-text: #4fd996;
    --open-dot: #2fce7f;

    --closed-bg: #23263a;
    --closed-text: #7f8399;
    --closed-dot: #4a4e63;

    --break-bg: #3a2a10;
    --break-text: #f0b25c;
    --break-dot: #f0a03c;

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.4);
  }
}

* {
  box-sizing: border-box;
}

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

.site-header {
  background: linear-gradient(180deg, var(--surface), var(--bg));
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 1.5rem 2rem;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.header-inner h1 {
  margin: 0 0 0.25rem;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

.subtitle {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
}

.clock-card {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 2rem;
  box-shadow: var(--shadow);
}

.clock-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.clock-time {
  font-size: clamp(2.2rem, 6vw, 3rem);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.clock-date {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.tz-note {
  max-width: 640px;
  margin: 1.25rem auto 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 3rem;
}

.summary-bar {
  text-align: center;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.exchange-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 860px) {
  .exchange-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .exchange-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.1rem 1.2rem 1.25rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--closed-dot);
  transition: border-color 0.3s ease;
}

.card.status-open {
  border-left-color: var(--open-dot);
}

.card.status-break {
  border-left-color: var(--break-dot);
}

.card-top {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
}

.flag {
  font-size: 1.6rem;
  line-height: 1;
}

.card-title {
  flex: 1;
  min-width: 0;
}

.card-title h3 {
  margin: 0;
  font-size: 1.02rem;
}

.card-sub {
  margin: 0.1rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.badge {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  white-space: nowrap;
}

.badge-open {
  background: var(--open-bg);
  color: var(--open-text);
}

.badge-closed {
  background: var(--closed-bg);
  color: var(--closed-text);
}

.badge-break {
  background: var(--break-bg);
  color: var(--break-text);
}

.card-details {
  margin: 0;
  display: grid;
  gap: 0.4rem;
}

.card-details > div {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.card-details dt {
  color: var(--text-muted);
}

.card-details dd {
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.countdown {
  margin: 0.75rem 0 0;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: right;
}

.roadmap-card {
  margin-top: 2.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow);
}

.roadmap-card h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.roadmap-card ol {
  padding-left: 1.2rem;
  color: var(--text-muted);
}

.roadmap-card li {
  margin-bottom: 0.4rem;
}

.roadmap-card a {
  color: var(--accent);
}

footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 1.5rem;
}