/* -----------------------------------------------------------------
   Tokens
   ----------------------------------------------------------------- */
:root {
  --color-ink: #1B1E21;          /* primary text */
  --color-slate: #52585E;        /* secondary text */
  --color-mist: #6B7280;         /* muted text (still 4.5:1+ on white) */
  --color-canvas: #FBFBFA;       /* page background */
  --color-surface: #FFFFFF;      /* card background */
  --color-surface-muted: #F1F2F3;/* muted card background */
  --color-line: #DADFE3;         /* default border */
  --color-line-strong: #B7BEC5;  /* stronger border */
  --color-accent: #0B5FA5;       /* transit blue */
  --color-accent-deep: #084578;  /* text on light accent tint */
  --color-accent-tint: #E3EEF7;  /* light accent background */

  /* Event category colors */
  --cat-rtan-base: #0B5FA5;
  --cat-rtan-deep: #084578;
  --cat-rtan-tint: #E3EEF7;
  --cat-partner-base: #0E6E5E;
  --cat-partner-deep: #0A5245;
  --cat-partner-tint: #DEF0EC;
  --cat-deadline-base: #B3271E;
  --cat-deadline-deep: #8C1F17;
  --cat-deadline-tint: #FBE3E1;
  --cat-awareness-base: #6B3FA0;
  --cat-awareness-deep: #54317F;
  --cat-awareness-tint: #ECE3F7;

  --font-sans: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 8px;
  --radius-card: 12px;
  --max-width: 960px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.55;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 8px; top: -48px;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius);
  z-index: 100;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 8px; }

a { color: var(--color-accent); }
a:hover { color: var(--color-accent-deep); }

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* -----------------------------------------------------------------
   Header
   ----------------------------------------------------------------- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
}
.site-header h1 {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 4px;
}
.site-header .subtitle {
  margin: 0;
  color: var(--color-slate);
  font-size: 15px;
  max-width: 46ch;
}
.submit-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
}
.submit-link:hover {
  background: var(--color-accent-tint);
}

/* -----------------------------------------------------------------
   Main layout
   ----------------------------------------------------------------- */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.view-toggle {
  display: inline-flex;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
}
.toggle-btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  border: none;
  background: var(--color-surface);
  color: var(--color-slate);
  cursor: pointer;
}
.toggle-btn + .toggle-btn { border-left: 1px solid var(--color-line-strong); }
.toggle-btn.is-active {
  background: var(--color-accent);
  color: #fff;
}

section h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 12px;
}
section h2:first-child { margin-top: 0; }

/* -----------------------------------------------------------------
   Calendar view (FullCalendar)
   ----------------------------------------------------------------- */
#panel-calendar {
  --fc-border-color: var(--color-line);
  --fc-page-bg-color: var(--color-surface);
  --fc-neutral-bg-color: var(--color-surface-muted);
  --fc-today-bg-color: var(--color-accent-tint);
  --fc-event-bg-color: var(--color-accent);
  --fc-event-border-color: var(--color-accent);
  --fc-event-text-color: #fff;
  --fc-button-bg-color: var(--color-surface);
  --fc-button-border-color: var(--color-line-strong);
  --fc-button-text-color: var(--color-ink);
  --fc-button-hover-bg-color: var(--color-accent-tint);
  --fc-button-hover-border-color: var(--color-accent);
  --fc-button-active-bg-color: var(--color-accent);
  --fc-button-active-border-color: var(--color-accent);
  font-size: 14px;
}
#calendar { background: var(--color-surface); border-radius: var(--radius-card); border: 1px solid var(--color-line); padding: 12px; }

/* Let event titles wrap onto two lines instead of truncating at one.
   !important is needed because FullCalendar injects its own stylesheet
   at runtime, after this one loads. */
#calendar .fc-daygrid-event {
  white-space: normal !important;
}
#calendar .fc-event-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.3;
  white-space: normal !important;
}

.calendar-detail {
  margin-top: 20px;
}
.calendar-detail[hidden] { display: none; }
.calendar-detail-close {
  margin-top: 12px;
  background: none;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius);
  padding: 8px 14px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-ink);
}
.calendar-detail-close:hover { background: var(--color-surface-muted); }

/* On wider screens, the clicked event's details show beside the
   calendar instead of below it (easy to miss when scrolled below). */
@media (min-width: 700px) {
  .calendar-layout {
    display: flex;
    align-items: flex-start;
    gap: 20px;
  }
  #calendar {
    flex: 1 1 60%;
    min-width: 0;
  }
  .calendar-detail {
    flex: 1 1 320px;
    max-width: 360px;
    margin-top: 0;
    position: sticky;
    top: 20px;
  }
}

/* -----------------------------------------------------------------
   Tile view
   ----------------------------------------------------------------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.event-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-card);
  padding: 16px 18px;
}
.event-card.is-past {
  border-left-color: var(--color-line-strong);
  background: var(--color-surface-muted);
}

.event-date {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent-deep);
  background: var(--color-accent-tint);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.event-card.is-past .event-date {
  color: var(--color-slate);
  background: var(--color-line);
}

.event-title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 2px;
}
.event-host {
  font-size: 13px;
  color: var(--color-slate);
  margin: 0 0 8px;
}
.event-meta {
  font-size: 13px;
  color: var(--color-slate);
  margin: 0 0 8px;
}
.event-description {
  font-size: 13px;
  color: var(--color-ink);
  margin: 0 0 10px;
}
.event-unconfirmed {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #7A4A00;
  background: #FCEFD9;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.event-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
  margin-left: 8px;
}
.event-category.cat-rtan      { color: var(--cat-rtan-deep);      background: var(--cat-rtan-tint); }
.event-category.cat-partner   { color: var(--cat-partner-deep);   background: var(--cat-partner-tint); }
.event-category.cat-deadline  { color: var(--cat-deadline-deep);  background: var(--cat-deadline-tint); }
.event-category.cat-awareness { color: var(--cat-awareness-deep); background: var(--cat-awareness-tint); }

/* Calendar chips, colored by category. !important because FullCalendar
   injects its own stylesheet at runtime, after this one loads. */
#calendar .fc-event.cat-rtan {
  background-color: var(--cat-rtan-base) !important;
  border-color: var(--cat-rtan-base) !important;
}
#calendar .fc-event.cat-partner {
  background-color: var(--cat-partner-base) !important;
  border-color: var(--cat-partner-base) !important;
}
#calendar .fc-event.cat-deadline {
  background-color: var(--cat-deadline-base) !important;
  border-color: var(--cat-deadline-base) !important;
}
#calendar .fc-event.cat-awareness {
  background-color: var(--cat-awareness-base) !important;
  border-color: var(--cat-awareness-base) !important;
}

/* Color key legend */
.category-legend {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--color-slate);
}
.category-legend li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.legend-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.legend-swatch.cat-rtan      { background: var(--cat-rtan-base); }
.legend-swatch.cat-partner   { background: var(--cat-partner-base); }
.legend-swatch.cat-deadline  { background: var(--cat-deadline-base); }
.legend-swatch.cat-awareness { background: var(--cat-awareness-base); }

.event-links {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid var(--color-line);
  padding-top: 10px;
}
.event-links a {
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}
.event-links a:hover { text-decoration: underline; }

.event-contact {
  font-size: 13px;
  color: var(--color-slate);
  text-decoration: none;
  display: inline-block;
}
.event-contact:hover { text-decoration: underline; }

/* -----------------------------------------------------------------
   Footer
   ----------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding: 24px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--color-slate);
}

/* -----------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------- */
@media (max-width: 560px) {
  .header-inner { flex-direction: column; }
  .site-header h1 { font-size: 22px; }
  .tile-grid { grid-template-columns: 1fr; }
}