:root {
  --fg: #222;
  --muted: #666;
  --bg: #fafafa;
  --card: #fff;
  --border: #ddd;
  --accent: #0a66c2;
  --badge-bme: #1f77b4;
  --badge-mic: #2ca02c;
  --badge-bims: #9467bd;
  --badge-bmg: #d62728;
  --badge-cic: #ff7f0e;
  --badge-none: #888;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  margin: 0;
  padding: 2rem 1rem;
  max-width: 900px;
  margin-inline: auto;
  line-height: 1.4;
}

header h1 { margin-bottom: 0.25rem; }
.subtitle { color: var(--muted); margin: 0; }
.updated { color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}
.filters fieldset {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  background: var(--card);
}
.filters legend { font-size: 0.85rem; color: var(--muted); padding: 0 0.25rem; }
.filters label { display: inline-flex; align-items: center; gap: 0.25rem; margin-right: 0.5rem; font-size: 0.9rem; }

main > section, main > details { margin-top: 2rem; }

/* ── Subscribe section ─────────────────────────────────────────────── */
.subscribe {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.subscribe h2 { margin: 0 0 0.35rem 0; font-size: 1.15rem; }
.sub-desc { color: var(--muted); margin: 0 0 0.9rem 0; font-size: 0.92rem; }
.sub-links { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.55rem 1rem;
  border-radius: 6px;
}
.btn:hover { opacity: 0.9; }
.copyrow { display: flex; gap: 0.4rem; flex: 1 1 20rem; min-width: 0; }
.copyrow input {
  flex: 1 1 auto;
  min-width: 0;
  font: inherit;
  font-size: 0.85rem;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
}
.copyrow button {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
  cursor: pointer;
  white-space: nowrap;
}
.copyrow button:hover { border-color: var(--accent); color: var(--accent); }

.howto, .filtered-feeds { margin-top: 0.9rem; font-size: 0.9rem; }
.howto summary, .filtered-feeds summary { cursor: pointer; color: var(--accent); font-weight: 500; }
.howto ul, .filtered-feeds ul { margin: 0.6rem 0 0 0; padding-left: 1.2rem; }
.howto li, .filtered-feeds li { margin-bottom: 0.4rem; }
.note { color: var(--muted); font-size: 0.85rem; }

/* ── View toggle ────────────────────────────────────────────────────── */
.view-toggle { margin: 1.5rem 0 0 0; }
.view-toggle-buttons { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.view-btn {
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border: none;
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
}
.view-btn + .view-btn { border-left: 1px solid var(--border); }
.view-btn[aria-pressed="true"] { background: var(--accent); color: #fff; }
.view-btn:hover:not([aria-pressed="true"]) { color: var(--fg); }

/* ── Tables ─────────────────────────────────────────────────────────── */
.tablewrap { overflow-x: auto; margin-top: 0.75rem; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  background: var(--card);
}
#upcoming-table, #past-table { table-layout: fixed; }
th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
tbody tr:hover td { background: rgba(10, 102, 194, 0.06); }

#upcoming-table th:nth-child(1), #upcoming-table td.when-cell,
#past-table th:nth-child(1), #past-table td.when-cell { width: 6.5rem; }
#upcoming-table th:nth-child(3), #upcoming-table td.where-cell,
#past-table th:nth-child(3), #past-table td.where-cell { width: 11rem; }

.when-cell { white-space: nowrap; }
.when-date { font-weight: 600; }
.when-time { color: var(--muted); font-size: 0.78rem; margin-top: 0.1rem; }

.talk-cell { white-space: normal; }
.talk-title { font-weight: 700; font-size: 0.98rem; line-height: 1.3; }
.talk-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.2rem;
}
.talk-who { margin-right: 0.1rem; }

.where-cell { color: var(--muted); white-space: normal; }

.badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  color: #fff;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.badge.type { background: #444; }
.badge.prog-BME { background: var(--badge-bme); }
.badge.prog-MIC { background: var(--badge-mic); }
.badge.prog-BIMS { background: var(--badge-bims); }
.badge.prog-BMG { background: var(--badge-bmg); }
.badge.prog-CIC { background: var(--badge-cic); }
.badge.prog-_none { background: var(--badge-none); }
.badge-sm { font-size: 0.62rem; padding: 0.05rem 0.4rem; opacity: 0.72; }

.empty { color: var(--muted); font-style: italic; margin-top: 0.5rem; }

/* Card-style stacked rows on phones: When on top, then Talk, then Where. */
@media (max-width: 600px) {
  #table-view table { table-layout: auto; }
  #table-view thead { display: none; }
  #table-view table, #table-view tbody, #table-view tr, #table-view td {
    display: block;
    width: 100%;
  }
  #table-view tr {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
  }
  #table-view tr:hover td { background: none; }
  #table-view td {
    padding: 0.15rem 0;
    border-bottom: none;
  }
  #upcoming-table td.when-cell, #upcoming-table td.where-cell,
  #past-table td.when-cell, #past-table td.where-cell {
    width: auto;
  }
}

/* ── Calendar view ──────────────────────────────────────────────────── */
.cal-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}
.cal-nav h2 { flex: 1 1 auto; margin: 0; font-size: 1.1rem; text-align: center; }
.cal-nav-btn, .cal-today-btn {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
  cursor: pointer;
}
.cal-nav-btn:hover, .cal-today-btn:hover { border-color: var(--accent); color: var(--accent); }

.cal-dow-row, .cal-cells { display: grid; grid-template-columns: repeat(7, 1fr); }
.cal-dow-row { margin-bottom: 0.3rem; }
.cal-dow {
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
}
.cal-cells { gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.cal-cell {
  background: var(--card);
  min-height: 6.5rem;
  padding: 0.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.cal-cell.outside { background: rgba(0, 0, 0, 0.02); }
.cal-cell.outside .cal-daynum { color: var(--muted); opacity: 0.6; }
.cal-cell.today { background: rgba(10, 102, 194, 0.07); }
.cal-daynum { font-size: 0.78rem; font-weight: 600; color: var(--muted); }
.cal-cell.today .cal-daynum {
  color: var(--accent);
  display: inline-block;
}

.cal-event {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  font-size: 0.7rem;
  line-height: 1.25;
  padding: 0.12rem 0.35rem;
  border: none;
  border-left: 3px solid var(--badge-none);
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.04);
  color: var(--fg);
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cal-event:hover { background: rgba(10, 102, 194, 0.1); }
.cal-event.prog-BME { border-left-color: var(--badge-bme); }
.cal-event.prog-MIC { border-left-color: var(--badge-mic); }
.cal-event.prog-BIMS { border-left-color: var(--badge-bims); }
.cal-event.prog-BMG { border-left-color: var(--badge-bmg); }
.cal-event.prog-CIC { border-left-color: var(--badge-cic); }
.cal-event.prog-_none { border-left-color: var(--badge-none); }

.cal-more {
  font: inherit;
  font-size: 0.68rem;
  color: var(--accent);
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
}
.cal-more:hover { text-decoration: underline; }

/* Agenda fallback for narrow screens. */
.cal-agenda-day { margin-bottom: 1.1rem; }
.cal-agenda-day h3 {
  font-size: 0.85rem;
  margin: 0 0 0.4rem 0;
  color: var(--fg);
}
.cal-agenda-day.today h3 { color: var(--accent); }
.cal-agenda-list { display: flex; flex-direction: column; gap: 0.3rem; }
.cal-agenda-list .cal-event { font-size: 0.82rem; padding: 0.35rem 0.55rem; white-space: normal; }

/* ── Detail modal ───────────────────────────────────────────────────── */
.cal-detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 10;
}
.cal-detail-overlay[hidden] { display: none; }
.cal-detail-card {
  position: relative;
  background: var(--card);
  border-radius: 10px;
  padding: 1.5rem;
  max-width: 26rem;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
}
.cal-detail-close {
  position: absolute;
  top: 0.6rem;
  right: 0.7rem;
  font-size: 1.3rem;
  line-height: 1;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0.2rem;
}
.cal-detail-close:hover { color: var(--fg); }
.cal-detail-card h3 { margin: 0 1.5rem 0.75rem 0; font-size: 1.1rem; }
.cal-detail-row { display: flex; gap: 0.6rem; padding: 0.3rem 0; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
.cal-detail-row:last-child { border-bottom: none; }
.cal-detail-label { flex: 0 0 7rem; color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.02em; }
.cal-detail-value { flex: 1 1 auto; }

/* ── API section ────────────────────────────────────────────────────── */
.api { border-top: 1px solid var(--border); padding-top: 1.25rem; }
.api h2 { margin-bottom: 0.35rem; font-size: 1.1rem; }
.api p { font-size: 0.9rem; color: var(--muted); }
.api code { background: rgba(0, 0, 0, 0.06); padding: 0.1em 0.35em; border-radius: 4px; font-size: 0.85em; }
.api table td code, .api table th { font-size: 0.85em; }
.curl {
  background: rgba(0, 0, 0, 0.06);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  font-size: 0.85rem;
  overflow-x: auto;
}
.api-links a { color: var(--accent); text-decoration: none; font-size: 0.88rem; }
.api-links a:hover { text-decoration: underline; }

footer { margin-top: 3rem; color: var(--muted); font-size: 0.85rem; text-align: center; }