/*
 * Stylesheet for the South Bay Area Drop-In Basketball calendar.
 *
 * Layout zones (in document order):
 *   .app           — top-level grid: header / sidebar / main
 *   .header        — title, week navigation, Refresh button
 *   .sidebar       — Summary / Sources / About cards
 *   .main          — sticky day headers + scrollable 24-hour calendar grid
 *   .event         — one positioned tile per session in the grid
 *   .event-popup   — Google-Calendar-style click popup with #popupBackdrop
 *
 * Tunable layout via CSS custom properties on :root below. JS in app.js
 * mirrors HOUR_HEIGHT, START_HOUR, END_HOUR, DEFAULT_VIEW_START_HOUR — keep
 * those in sync with --hour-height, --start-hour, --end-hour, --hours.
 */
:root {
  --bg: #ffffff;
  --panel: #f8f9fa;
  --border: #e0e0e0;
  --text: #202124;
  --muted: #5f6368;
  --accent: #1a73e8;
  --sidebar-width: 300px;
  --header-height: 64px;
  --hour-height: 64px;
  --time-col-width: 72px;
  --day-cols: 7;
  /* Calendar renders the full 24-hour day; default scroll position snaps
     to 8 AM via JS so the standard view is still 8 AM – 10 PM. */
  --start-hour: 0;
  --end-hour: 24;
  --hours: 24;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }

.app {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  height: 100vh;
}

.header {
  grid-column: 1 / 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  background: #fff;
  z-index: 5;
}
.header-left, .header-right { display: flex; align-items: center; gap: 14px; }
.title { font-size: 18px; font-weight: 700; }
.week-title { font-size: 16px; font-weight: 700; color: var(--text); }

.week-nav { display: flex; align-items: center; gap: 6px; }
.btn.nav-today {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
}
.btn.nav-arrow {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
  font-size: 18px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn.nav-arrow:hover { background: var(--panel); }

.btn {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { background: var(--panel); }
.btn.primary {
  background: #d93025; /* Material red */
  color: #fff;
  border-color: #d93025;
}
.btn.primary:hover { background: #b1271b; }
.btn.primary.loading { opacity: 0.6; cursor: wait; }
.updated { font-size: 12px; color: var(--muted); }

.sidebar {
  border-right: 1px solid var(--border);
  background: #fff;
  padding: 16px;
  overflow: auto;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: var(--panel);
  margin-bottom: 16px;
}
.card h3 {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}
.legend-item input { margin: 0; }
.legend-item.disabled { opacity: 0.4; }
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex: 0 0 12px;
}
.legend-label {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 6px;
  flex: 1;
  min-width: 0;
}
.legend-label strong { font-weight: 600; }
.legend-city {
  font-size: 12px;
  color: var(--muted);
}
.legend-price {
  font-size: 12px;
  color: var(--muted);
  margin-left: auto;
}

.stats { display: grid; gap: 6px; font-size: 14px; }
.stats strong { color: var(--text); }

.note { font-size: 13px; color: var(--muted); line-height: 1.5; }

.main {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
}

.day-header-row {
  display: grid;
  grid-template-columns: var(--time-col-width) repeat(var(--day-cols), 1fr);
  border-bottom: 1px solid var(--border);
  background: #fff;
  /* Sit inside .calendar-grid-wrap so the columns share the same width as
     .calendar-grid (no scrollbar gap). Stick to the top while the user
     scrolls vertically. */
  position: sticky;
  top: 0;
  z-index: 3;
  min-width: 1120px;
}
.blank { border-right: 1px solid var(--border); background: #fff; }

.day-header {
  padding: 10px 8px;
  text-align: center;
  border-right: 1px solid var(--border);
}
.weekday {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.date {
  margin-top: 6px;
  font-size: 22px;
  font-weight: 500;
  width: 38px;
  height: 38px;
  line-height: 38px;
  display: inline-block;
  border-radius: 50%;
}
.day-header.active .date {
  background: var(--accent);
  color: #fff;
}

.calendar-grid-wrap {
  overflow: auto;
  position: relative;
  height: 100%;
}

.calendar-grid {
  position: relative;
  display: grid;
  grid-template-columns: var(--time-col-width) repeat(var(--day-cols), 1fr);
  min-width: 1120px;
}

.time-col {
  border-right: 1px solid var(--border);
  background: #fff;
  position: relative;
  z-index: 1;
}
.time-slot {
  height: var(--hour-height);
  /* No border-bottom here. The day-col background already draws each hour
     line via repeating-linear-gradient at the layout position; if we drew
     a border here it would be shifted by translateY below and produce a
     6 px-offset twin line beside every gradient line. */
  padding: 0 8px;
  font-size: 11px;
  color: var(--muted);
  text-align: right;
  /* Visually nudge the label up so it sits next to its hour line instead
     of at the top of the band. Layout-affecting properties stay untouched. */
  transform: translateY(-6px);
}

.day-col {
  position: relative;
  border-right: 1px solid var(--border);
  background: repeating-linear-gradient(
    to bottom,
    #fff 0,
    #fff calc(var(--hour-height) - 1px),
    var(--border) var(--hour-height)
  );
  min-height: calc(var(--hour-height) * var(--hours));
}
.day-col.active { background-color: rgba(26, 115, 232, 0.04); }

.event {
  position: absolute;
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 12px;
  overflow: hidden;
  border-left: 4px solid rgba(0, 0, 0, 0.18);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  transition: transform 0.05s ease;
}
.event:hover { transform: scale(1.01); z-index: 3; box-shadow: 0 4px 10px rgba(0,0,0,0.12); }
.event-title {
  font-weight: 700;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.event-time, .event-meta {
  font-size: 11px;
  color: #3c4043;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─── Google Calendar-style event popup ──────────────────────────── */

#popupBackdrop {
  position: fixed;
  inset: 0;
  background: transparent;
  z-index: 50;
}

.event-popup {
  position: fixed;
  z-index: 51;
  width: min(420px, calc(100vw - 32px));
  background: #fff;
  border-radius: 12px;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.12),
    0 8px 24px rgba(0, 0, 0, 0.18);
  padding: 22px 24px 18px;
  font-size: 14px;
  overflow: hidden;
}

.popup-color-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--accent);
}

.popup-close {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.popup-close:hover { background: var(--panel); color: var(--text); }

.popup-venue {
  margin: 0 32px 4px 6px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text);
}
.popup-activity {
  margin: 0 0 14px 6px;
  font-size: 13px;
  color: var(--muted);
}

.popup-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 10px 0 10px 6px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text);
}
.popup-icon {
  flex: 0 0 18px;
  text-align: center;
  font-size: 14px;
  opacity: 0.8;
  margin-top: 1px;
}

.popup-courts {
  display: grid;
  gap: 4px;
}
.popup-court-line {
  font-size: 13.5px;
}
.popup-court-line strong {
  font-weight: 600;
  margin-right: 6px;
}

.popup-notes-text {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.popup-actions {
  margin: 16px 0 2px 36px;
}
.popup-link {
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}
.popup-link:hover { text-decoration: underline; }

/* ─── Visitor counter badge ────────────────────────────────── */

.visitor-badge {
  position: fixed;
  bottom: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  z-index: 5;
  user-select: none;
}
.visitor-icon { font-size: 14px; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .header { grid-column: 1 / 2; }
}