/* ui.css — 공통 색 토큰 · 모바일 우선 */
:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666666;
  --accent: #2563eb;
  --border: #e5e5e5;
  --card-bg: #f7f7f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #eaeaea;
    --muted: #9a9a9a;
    --accent: #60a5fa;
    --border: #2c2c2c;
    --card-bg: #1c1c1e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  line-height: 1.5;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.5rem;
  margin: 8px 0 16px;
}

.session-block {
  margin-bottom: 20px;
}

.session-title {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.subject-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.subject-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}

.subject-name {
  font-size: 0.95rem;
}

.subject-label {
  color: var(--muted);
  font-size: 0.8rem;
  margin-left: 6px;
}

.status-bar {
  margin-top: 24px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--muted);
}

.notice {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  color: var(--muted);
  text-align: center;
}

.intro {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 16px;
}

.site-footer {
  max-width: 640px;
  margin: 24px auto 0;
  padding: 16px;
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
}

.site-footer a {
  color: var(--muted);
}