:root {
  --bg: var(--tg-theme-bg-color, #0e0d11);
  --card: var(--tg-theme-secondary-bg-color, #1a1820);
  --card-2: #211f29;
  --text: var(--tg-theme-text-color, #f2f1f6);
  --hint: var(--tg-theme-hint-color, #8b869a);
  --accent: var(--tg-theme-button-color, #c9a86a);
  --accent-soft: rgba(201, 168, 106, 0.14);
  --accent-text: #191510;
  --border: rgba(255, 255, 255, 0.06);
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
  margin: 0;
  background: var(--bg);
  background-image: radial-gradient(circle at 50% -10%, rgba(201, 168, 106, 0.10), transparent 45%);
  background-attachment: fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.01em;
}

#app {
  padding: 20px 18px 40px;
  max-width: 560px;
  margin: 0 auto;
  animation: rise 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Header */
.topbar { padding: 4px 2px 20px; text-align: center; }
.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.topbar h1 {
  font-size: 26px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, var(--text), var(--hint));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.date-label {
  color: var(--hint);
  font-size: 13px;
  margin-top: 6px;
  text-transform: capitalize;
}

/* Tabs — sliding segmented control */
.tabs { margin-bottom: 14px; }
.tabs-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 4px;
}
.tabs-indicator {
  position: absolute;
  top: 4px;
  left: 4px;
  height: calc(100% - 8px);
  width: calc(33.333% - 4px);
  background: var(--accent);
  box-shadow: inset 0 -6px 10px rgba(0, 0, 0, 0.15), 0 4px 12px rgba(201, 168, 106, 0.25);
  border-radius: 10px;
  transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1);
}
.tab {
  position: relative;
  z-index: 1;
  padding: 9px 6px;
  border: none;
  background: transparent;
  color: var(--hint);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.25s ease;
  border-radius: 10px;
}
.tab.active { color: var(--accent-text); }

/* Timer caption */
.timer-caption {
  background: linear-gradient(135deg, var(--card), var(--card-2));
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 14px;
  padding: 13px 16px;
  margin-bottom: 14px;
  font-size: 14px;
  line-height: 1.5;
  box-shadow: var(--shadow);
  animation: rise 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.timer-caption b { color: var(--accent); font-weight: 600; }

.content { display: flex; flex-direction: column; gap: 9px; }

/* Skeleton loader */
.skeleton { display: flex; flex-direction: column; gap: 9px; }
.skeleton-card {
  height: 62px;
  border-radius: 16px;
  background: linear-gradient(100deg, var(--card) 30%, var(--card-2) 50%, var(--card) 70%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Lesson cards */
.lesson-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 13px 15px;
  display: flex;
  align-items: center;
  gap: 13px;
  box-shadow: var(--shadow);
  animation: rise 0.35s cubic-bezier(0.16, 1, 0.3, 1) backwards;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.lesson-card:active { transform: scale(0.98); }

.lesson-num {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.lesson-body { flex: 1; min-width: 0; }
.lesson-subject {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lesson-meta {
  color: var(--hint);
  font-size: 12.5px;
  margin-top: 3px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.lesson-meta .dot { opacity: 0.5; }

.empty-state {
  text-align: center;
  color: var(--hint);
  padding: 56px 20px;
  font-size: 14px;
  line-height: 1.6;
}
.empty-state .icon { font-size: 32px; display: block; margin-bottom: 10px; opacity: 0.7; }

/* Bells */
.bells-table {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.bells-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.bells-row:last-child { border-bottom: none; }
.bells-row .num { color: var(--hint); font-weight: 500; }
.bells-row .time {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.01em;
}