:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --ink: #1a1d21;
  --muted: #5c6570;
  --line: #e3e7ec;
  --accent: #0b6bcb;
  --accent-ink: #ffffff;
  --cancelled: #b0182a;
  --weekend: #ffe9a8;
  --holiday: #f7c3c3;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 820px; margin: 0 auto; padding: 0 20px; }
.wrap.wide { max-width: 1180px; }

/* ── Header ─────────────────────────────────────────────── */
.site-header { background: var(--card); border-bottom: 1px solid var(--line); padding: 24px 0 16px; }
.site-header h1 { margin: 0; font-size: 1.5rem; letter-spacing: -0.01em; }
.semester { color: var(--muted); font-size: 0.95rem; }

.header-bar { display: flex; gap: 16px 20px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.header-left { display: flex; align-items: center; gap: 14px; min-width: 0; }
.header-title { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; min-width: 0; }
.header-actions { display: flex; gap: 8px; align-items: center; }
.logo { width: auto; display: block; flex: none; }
.logo-screen { height: 54px; }
.logo-print { display: none; height: 60px; }
.print-title { display: none; }
.print-head { display: none; }

.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
.toolbar-right { display: flex; gap: 10px; align-items: center; }

.view-toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--bg); }
.view-toggle button { border: 0; background: transparent; padding: 6px 15px; font-size: 0.9rem; color: var(--muted); cursor: pointer; font-family: inherit; }
.view-toggle button.active { background: var(--accent); color: var(--accent-ink); }

.ics-link { display: inline-block; padding: 6px 13px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); text-decoration: none; font-size: 0.88rem; white-space: nowrap; }
.ics-link:hover { border-color: var(--accent); color: var(--accent); }
.print-btn { padding: 6px 13px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); color: var(--muted); font-size: 0.88rem; cursor: pointer; font-family: inherit; white-space: nowrap; }
.print-btn:hover { border-color: var(--accent); color: var(--accent); }

.filters { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.chip { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 3px 9px; font-size: 0.8rem; color: var(--ink); cursor: pointer; font-family: inherit; display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.chip .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex: none; }
.chip-grade { color: var(--muted); font-size: 0.72rem; }
.chip.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.chip.active .chip-grade { color: rgba(255, 255, 255, 0.85); }

main { padding: 22px 0 48px; }
.empty { text-align: center; color: var(--muted); padding: 48px 0; }

/* ── Grid (terminliste) view ─────────────────────────────── */
.season-switch { display: flex; gap: 8px; margin-bottom: 16px; }
.season-switch:empty { display: none; }
.season-btn { padding: 7px 16px; border: 1px solid var(--line); background: var(--card); border-radius: 8px; cursor: pointer; font-family: inherit; font-size: 0.92rem; color: var(--muted); }
.season-btn.active { background: var(--ink); color: #fff; border-color: var(--ink); }

.grid-page { display: none; }
.grid-page.active { display: block; }
.page-title { font-size: 1.15rem; margin: 0 0 12px; }
/* The semester already shows in the header on screen — only need it in print. */
@media screen { .page-title { display: none; } }

.months-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.month-col { min-width: 0; }

.month-table { width: 100%; table-layout: fixed; border-collapse: collapse; font-size: 0.72rem; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.col-dow { width: 15px; }
.col-num { width: 20px; }
.month-table .month-name { background: var(--accent); color: #fff; text-align: left; padding: 6px 8px; font-size: 0.9rem; letter-spacing: 0.01em; }
.month-table .sub-head th { background: #eef1f5; color: var(--muted); font-weight: 600; text-align: left; padding: 3px 6px; border-bottom: 1px solid var(--line); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.03em; }

.month-table td { border-bottom: 1px solid #eef1f5; padding: 1px 4px; vertical-align: top; }
.c-dow { width: 14px; color: var(--muted); text-align: center; }
.c-num { width: 20px; text-align: right; font-variant-numeric: tabular-nums; padding-right: 6px; }
.c-num.weekend { background: var(--weekend); font-weight: 700; }
.c-num.holiday { background: var(--holiday); color: var(--cancelled); font-weight: 700; }
.c-act { min-height: 16px; }
.c-act.holiday { background: var(--holiday); }
.weekend-row .c-dow { background: var(--weekend); }

.hol-name { display: block; color: var(--cancelled); font-weight: 600; font-size: 0.68rem; }

/* Spanning event bars (single or multi-day, "covers" days like the classic) */
.bar { display: flex; align-items: center; gap: 5px; color: #fff; font-size: 0.68rem; line-height: 1.2; min-height: 15px; padding: 1px 5px; margin: 1px 0; border-radius: 4px; overflow: hidden; white-space: nowrap; }
.bar.cont { border-top-left-radius: 0; border-top-right-radius: 0; margin-top: 0; }
.bar.first { border-bottom-left-radius: 0; border-bottom-right-radius: 0; margin-bottom: 0; }
.bar.cancelled { text-decoration: line-through; opacity: 0.7; }
.bar.brk { background: #c0453f; font-weight: 600; }
/* Dots inside a bar (grey meeting pill or multi-subgroup activity) */
.bar-dots { display: inline-flex; gap: 3px; align-items: center; flex: none; }
.bar-title { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.5); }
.bar.meeting { padding: 2px 6px; }

/* ── List view ──────────────────────────────────────────── */
.day-group { margin-bottom: 22px; }
.day-heading { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin: 0 0 10px; font-weight: 600; }
.event { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 13px 15px; margin-bottom: 9px; display: grid; grid-template-columns: 84px 1fr; gap: 13px; }
.event .time { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 0.92rem; }
.event .title { margin: 0; font-size: 1.02rem; font-weight: 600; }
.event .meta { color: var(--muted); font-size: 0.9rem; margin-top: 3px; }
.event .desc { margin-top: 8px; font-size: 0.93rem; white-space: pre-wrap; color: #333a42; }
.event .badges { margin-top: 9px; display: flex; flex-wrap: wrap; gap: 6px; }
.badge { font-size: 0.78rem; padding: 2px 9px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.badge .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.event.cancelled .title { text-decoration: line-through; color: var(--cancelled); }
.tag-cancelled { color: var(--cancelled); font-weight: 600; font-size: 0.8rem; margin-left: 8px; }

/* ── Footer ─────────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--line); padding: 20px 0 40px; color: var(--muted); font-size: 0.85rem; }

@media (max-width: 900px) {
  .months-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .months-row { grid-template-columns: repeat(2, 1fr); }
  .event { grid-template-columns: 1fr; gap: 3px; }
}

/* ── Print / PDF ────────────────────────────────────────── */
@page { size: A4 landscape; margin: 7mm; }
@media print {
  /* Print background colours faithfully (weekends, holidays, event bars). */
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
  .header-actions, .season-switch, .site-footer, .header-title, .filters, .page-title { display: none !important; }
  .logo-screen { display: none !important; }
  .logo-print { display: block !important; }
  /* Group name (+ subgroup) beside the logo, semester on the line below. */
  .print-head { display: block !important; }
  .print-title { display: block !important; font-size: 1.15rem; font-weight: 700; line-height: 1.2; }
  .print-semester { display: block !important; font-size: 0.85rem; color: #555; }
  .site-header { border: 0; padding: 0 0 4px; }
  body { background: #fff; }
  .wrap { max-width: none; padding: 0; }
  main { padding: 0; }
  .filters { margin: 0 0 3px; gap: 5px; }
  .chip { cursor: default; padding: 2px 9px; font-size: 0.62rem; }
  .chip .dot { width: 9px; height: 9px; }
  .chip-grade { font-size: 0.58rem; }
  /* Print BOTH half-year pages, each on its own landscape sheet. */
  .grid-page { display: block !important; page-break-after: always; page-break-inside: avoid; }
  .grid-page:last-child { page-break-after: auto; }
  .page-title { font-size: 0.95rem; margin: 0 0 4px; }
  .months-row { grid-template-columns: repeat(6, 1fr); gap: 5px; }
  .month-table { font-size: 0.58rem; }
  .month-table .month-name { padding: 2px 6px; font-size: 0.72rem; }
  .month-table .sub-head th { padding: 1px 5px; font-size: 0.54rem; }
  .month-table td { padding: 0 4px; line-height: 1.12; }
  .bar { font-size: 0.54rem; padding: 0 4px; margin: 0; }
  .hol-name { font-size: 0.52rem; }
  .dots { padding: 0; gap: 2px; }
  .dots .dot { width: 8px; height: 8px; }
  #list-view { display: none !important; }
}