:root {
  --bg: var(--tg-theme-secondary-bg-color, #f1f2f5);
  --card: var(--tg-theme-section-bg-color, var(--tg-theme-bg-color, #ffffff));
  --text: var(--tg-theme-text-color, #16181d);
  --muted: var(--tg-theme-hint-color, #6f7682);
  --accent: var(--tg-theme-button-color, #2f7de1);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --line: color-mix(in srgb, var(--muted) 22%, transparent);
  --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-tg]) {
    --bg: #101216; --card: #1b1e24; --text: #eef0f3; --muted: #8d94a0; --accent: #5a9cf0;
  }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
}
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px 6px; }
.group-btn { display: inline-flex; align-items: center; gap: 6px; padding: 4px 0; font-size: 22px; font-weight: 700; letter-spacing: -.01em; }
.group-btn svg { color: var(--muted); }
.period { color: var(--muted); font-size: 13px; text-align: right; white-space: nowrap; }

.days {
  position: sticky; top: 0; z-index: 2;
  display: flex; gap: 6px; padding: 8px 16px 10px;
  background: var(--bg); overflow-x: auto; scrollbar-width: none;
}
.days::-webkit-scrollbar { display: none; }
.day {
  flex: 1 1 0; min-width: 40px; display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 7px 0; border-radius: 12px; background: var(--card);
}
.day-name { font-size: 12px; color: var(--muted); }
.day-num { font-size: 17px; font-weight: 600; font-variant-numeric: tabular-nums; }
.day.today .day-name, .day.today .day-num { color: var(--accent); }
.day[aria-pressed="true"] { background: var(--accent); }
.day[aria-pressed="true"] .day-name, .day[aria-pressed="true"] .day-num { color: var(--accent-text); }

.content { padding: 2px 16px 0; }
.state { margin: 48px 16px; text-align: center; color: var(--muted); }
.state strong { display: block; margin-bottom: 4px; color: var(--text); font-size: 17px; font-weight: 600; }
.state button { margin-top: 14px; padding: 9px 18px; border-radius: 10px; background: var(--accent); color: var(--accent-text); font-weight: 600; }

.summary { margin: 2px 2px 10px; color: var(--muted); font-size: 13px; }
.summary b { color: var(--accent); font-weight: 600; }

.lesson {
  display: grid; grid-template-columns: 52px 1fr; gap: 12px;
  padding: 12px 14px; margin-bottom: 8px; border-radius: var(--radius); background: var(--card);
}
.lesson.past { opacity: .6; }
.lesson.now { box-shadow: inset 0 0 0 2px var(--accent); }
.times { font-variant-numeric: tabular-nums; }
.start { font-weight: 600; }
.end { color: var(--muted); font-size: 13px; }
.pair-no { margin-top: 5px; color: var(--muted); font-size: 12px; }
.body { min-width: 0; }
.code { color: var(--muted); font-size: 12px; }
.subject { font-weight: 600; overflow-wrap: anywhere; }
.meta { display: flex; flex-wrap: wrap; gap: 2px 12px; margin-top: 5px; color: var(--muted); font-size: 13px; }
.room { color: var(--text); font-weight: 500; }
.progress { height: 3px; margin-top: 9px; border-radius: 2px; background: var(--accent-soft); overflow: hidden; }
.progress i { display: block; height: 100%; background: var(--accent); }
.gap { margin: 0 2px 8px; color: var(--muted); font-size: 12px; }

.updated { padding: 10px 16px 0; color: var(--muted); font-size: 12px; text-align: center; }

.picker { position: fixed; inset: 0; z-index: 5; display: flex; flex-direction: column; background: var(--bg); }
.picker[hidden] { display: none; }
.picker-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; }
.picker-search {
  flex: 1; min-width: 0; padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--card); color: var(--text); font: inherit; font-size: 16px;
}
.picker-close { color: var(--accent); font-weight: 500; white-space: nowrap; }
.picker-list {
  flex: 1; overflow-y: auto; padding: 0 16px 16px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 8px; align-content: start;
}
.picker-item { padding: 12px 4px; border-radius: 12px; background: var(--card); font-weight: 500; }
.picker-item.mine { box-shadow: inset 0 0 0 2px var(--accent); }
.picker-empty { grid-column: 1 / -1; margin: 32px 0; text-align: center; color: var(--muted); }

@media (prefers-reduced-motion: no-preference) {
  .animate .lesson { animation: rise .16s ease-out; }
  @keyframes rise { from { transform: translateY(3px); } }
}