/* Month-grid calendar viewer (/calendar).
   Built on the brand tokens declared in main.css. */

.page-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  margin: .5rem 0 1.25rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--gsf-line);
}

.page-head h3 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--gsf-ink);
}

.page-head-sub {
  font-size: .875rem;
  color: var(--gsf-ink-soft);
}

/* Brand button, used for the admin "添加活动" action and the modal's confirm. */
.btn-brand {
  background: var(--gsf-600);
  border: 1px solid var(--gsf-600);
  color: #fff;
  font-weight: 500;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(16, 42, 67, .12);
}

.btn-brand:hover,
.btn-brand:focus {
  background: var(--gsf-700);
  border-color: var(--gsf-700);
  color: #fff;
}

.btn-brand:focus,
.btn-brand.focus {
  box-shadow: 0 0 0 3px var(--gsf-200);
}

.btn-brand:disabled { opacity: .65; }

/* Success banner shown after an event is created; it fades itself out after
   five seconds (see the script in calendar.ejs). */
.flash-banner {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1rem;
  padding: .75rem 1rem;
  border: 1px solid #b7e4c7;
  border-left: 4px solid #1f9254;
  border-radius: 10px;
  background: #eaf7ef;
  color: #135c36;
  font-size: .9375rem;
  opacity: 1;
  transition: opacity .4s ease, transform .4s ease;
}

.flash-banner i { color: #1f9254; }

/* Same banner, deletion's colours: a green tick over "活动已删除" reads wrong. */
.flash-banner.is-removed {
  border-color: #f1c7c7;
  border-left-color: #b02a37;
  background: #fdf0f0;
  color: #7a2029;
}

.flash-banner.is-removed i { color: #b02a37; }

.flash-banner.is-leaving {
  opacity: 0;
  transform: translateY(-4px);
}

.card-surface {
  background: #fff;
  border: 1px solid var(--gsf-line);
  border-radius: var(--gsf-radius);
  box-shadow: var(--gsf-shadow);
  overflow: hidden;
}

/* --- month bar ---------------------------------------------------------- */

.cal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .875rem 1.125rem;
  background: linear-gradient(135deg, var(--gsf-700), var(--gsf-500));
  color: #fff;
}

.cal-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: .01em;
}

.cal-nav {
  display: flex;
  align-items: center;
  gap: .375rem;
}

.cal-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 .625rem;
  border-radius: 999px;
  font-size: .8125rem;
  line-height: 1;
  color: #fff;
  background: rgba(255, 255, 255, .14);
  transition: background .15s ease, transform .15s ease;
}

.cal-btn:hover,
.cal-btn:focus {
  background: rgba(255, 255, 255, .28);
  color: #fff;
  text-decoration: none;
}

.cal-btn:active { transform: translateY(1px); }

.cal-btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Already looking at the current month — keep the control visible but inert. */
.cal-btn-today.is-disabled {
  opacity: .5;
  pointer-events: none;
}

/* --- grid --------------------------------------------------------------- */

/* 1px of the container's background shows between cells, which gives hairline
   rules without doubling borders where cells meet. */
.cal-grid {
  background: var(--gsf-line);
  display: flex;
  flex-direction: column;
  gap: 1px;
  border-top: 1px solid var(--gsf-line);
}

.cal-weekdays,
.cal-week {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 1px;
}

.cal-weekday {
  padding: .5rem .25rem;
  background: var(--gsf-50);
  color: var(--gsf-700);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-align: center;
  text-transform: uppercase;
}

/* Weekends carry most of the club's fixtures, so the columns are tinted rather
   than de-emphasised — the header labels stay in the same brand colour. */

.cal-day {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-height: 108px;
  padding: .375rem .375rem .5rem;
  background: #fff;
}

.cal-day.is-weekend { background: var(--gsf-tint); }

.cal-day.is-outside {
  background: var(--gsf-outside);
  color: var(--gsf-ink-faint);
}

.cal-day.is-outside .cal-date { color: var(--gsf-ink-faint); }

.cal-date {
  align-self: flex-end;
  min-width: 1.625rem;
  height: 1.625rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: .8125rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--gsf-ink-soft);
}

.cal-day.is-today { box-shadow: inset 0 0 0 2px var(--gsf-400); }

.cal-day.is-today .cal-date {
  background: var(--gsf-600);
  color: #fff;
}

/* --- event chips -------------------------------------------------------- */

.cal-event {
  display: block;
  padding: .25rem .4375rem .3125rem;
  border-left: 3px solid var(--gsf-500);
  border-radius: 5px;
  background: var(--gsf-50);
  color: var(--gsf-800);
  font-size: .75rem;
  line-height: 1.25;
  transition: background .15s ease, transform .15s ease;
}

.cal-event:hover,
.cal-event:focus {
  background: var(--gsf-100);
  color: var(--gsf-900);
  text-decoration: none;
  transform: translateX(1px);
}

.cal-event-time {
  display: block;
  font-size: .6875rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--gsf-600);
}

/* Titles are member-authored and can be long; clamp instead of stretching the
   row, and keep the full text in the link's title attribute. */
.cal-event-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-weight: 500;
}

/* An event not everyone can see. The amber edge is the whole signal — the chip
   keeps its size and its layout, since a restricted event is still an ordinary
   one to the member looking at it. */
.cal-event.is-restricted {
  border-left-color: #d39e00;
  background: #fff8e6;
}

.cal-event-lock {
  margin-right: .25rem;
  font-size: .625rem;
  color: #b07d00;
}

.cal-event.is-past {
  border-left-color: var(--gsf-ink-faint);
  background: #f1f3f5;
  color: var(--gsf-ink-soft);
}

.cal-event.is-past .cal-event-time { color: var(--gsf-ink-faint); }

.cal-event.is-past:hover,
.cal-event.is-past:focus {
  background: #e9ecef;
  color: var(--gsf-ink);
}

.badge-brand {
  background: var(--gsf-50);
  color: var(--gsf-700);
}

/* --- full-viewport page --------------------------------------------------
   /calendar is the whole screen: the month grid stretches to the bottom edge
   and the page itself never scrolls. header.ejs puts .page-full on <body> and
   swaps the wrapper to .container-fluid for that path. Every element between
   the body and the week rows needs min-height:0 — the flex default of `auto`
   makes them refuse to shrink below their content, which pushes the last week
   out of sight instead of squeezing the rows. */
.page-full {
  height: 100vh;
  height: 100dvh; /* mobile: don't count the collapsing address bar */
  overflow: hidden;
}

.page-full .main-content {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding-bottom: 1rem;
}

/* The site footer would cost a row of days, and there is nowhere left to
   scroll to it. */
.page-full footer { display: none; }

.page-full .page-head { margin-bottom: .75rem; }

.page-full .cal {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.page-full .cal-grid {
  flex: 1;
  min-height: 0;
}

/* The six rows split whatever height is left, so cells no longer set it. */
.page-full .cal-week {
  flex: 1;
  min-height: 0;
}

.page-full .cal-day {
  min-height: 0;
  overflow-y: auto;
}

/* A day with more events than fit scrolls inside its own cell rather than
   compressing the chips — the cell is a flex column and they would otherwise
   shrink to nothing. */
.page-full .cal-day > * { flex: none; }

/* --- event form modal (create + edit) ----------------------------------- */

#event-modal .modal-content {
  border: none;
  border-radius: var(--gsf-radius);
  box-shadow: 0 24px 64px rgba(16, 42, 67, .22);
}

#event-modal .modal-header {
  align-items: center;
  border-bottom: 1px solid var(--gsf-line);
  background: var(--gsf-50);
  border-radius: var(--gsf-radius) var(--gsf-radius) 0 0;
}

#event-modal .modal-title {
  font-weight: 600;
  color: var(--gsf-800);
}

#event-modal label {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--gsf-ink-soft);
  margin-bottom: .25rem;
}

#event-modal .form-control {
  border-color: var(--gsf-line);
  border-radius: 8px;
}

#event-modal .form-control:focus {
  border-color: var(--gsf-400);
  box-shadow: 0 0 0 3px var(--gsf-100);
}

#event-modal .modal-footer { border-top: 1px solid var(--gsf-line); }

/* The <form> sits between .modal-content and .modal-body, so Bootstrap's
   .modal-dialog-scrollable pair of rules (max-height + overflow:hidden on the
   content, overflow-y:auto on the body) never meet: the form is the flex item,
   and with the default min-height:auto it refuses to shrink, so the content
   clips the footer instead of the body scrolling. Make the form the missing
   link in the chain. */
#event-modal .modal-dialog-scrollable .modal-content > form {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

#event-modal .modal-dialog-scrollable .modal-body { min-height: 0; }

/* Check-in point picker inside the modal. */
.ev-map-head {
  display: flex;
  align-items: center;
  gap: .375rem;
  margin-bottom: .375rem;
}

.ev-section-label {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--gsf-ink-soft);
}

.ev-map {
  height: 240px;
  border: 1px solid var(--gsf-line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--gsf-50);
}

/* Leaflet ships its own font stack; keep the map's labels on the page's. */
.ev-map .leaflet-container { font: inherit; }

/* Geocoder results, hanging under the 地点 field — which is the search box.
   The list is in normal flow rather than an absolutely positioned dropdown:
   the modal body is itself a scroll container, which would clip an overlay
   hanging past its bottom edge. */
.ev-search-results {
  margin-top: .375rem;
  max-height: 168px;
  overflow-y: auto;
  border: 1px solid var(--gsf-line);
  border-radius: 8px;
  background: #fff;
}

.ev-search-item {
  display: block;
  width: 100%;
  padding: .4375rem .625rem;
  border: 0;
  border-bottom: 1px solid var(--gsf-line);
  background: none;
  text-align: left;
  font-size: .8125rem;
  line-height: 1.35;
  color: var(--gsf-ink-soft);
}

.ev-search-item:last-child { border-bottom: 0; }

.ev-search-item:hover,
.ev-search-item:focus {
  background: var(--gsf-50);
  color: var(--gsf-800);
}

.ev-search-note {
  padding: .4375rem .625rem;
  font-size: .8125rem;
  color: var(--gsf-ink-soft);
}

/* Drag target on the rim of the radius circle. Leaflet supplies the size and
   the centring margins from the divIcon options. */
.ev-radius-handle {
  box-sizing: border-box;
  border: 3px solid #28a745;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(16, 42, 67, .35);
  cursor: nesw-resize;
}

/* A 16px dot is a poor finger target; widen the hit area without touching the
   marker's own transform, which Leaflet owns for positioning. */
.ev-radius-handle::before {
  content: '';
  position: absolute;
  top: -8px;
  right: -8px;
  bottom: -8px;
  left: -8px;
  border-radius: 50%;
}

/* --- narrow screens ------------------------------------------------------ */

@media (max-width: 767.98px) {
  .cal-day {
    min-height: 84px;
    padding: .25rem .25rem .375rem;
  }

  .cal-date {
    min-width: 1.375rem;
    height: 1.375rem;
    font-size: .75rem;
  }

  .cal-event {
    padding: .1875rem .25rem;
    border-left-width: 2px;
    font-size: .625rem;
  }

  /* Times don't survive the column width; the lists below carry the detail. */
  .cal-event-time { display: none; }
  .cal-event-title { -webkit-line-clamp: 2; }

  .ev-map { height: 200px; }
}

/* Below sm a short form field puts its label on the same line as the input,
   which buys back roughly a third of the form's height — used by both modals
   (event and user). Only below sm: at 576px .form-row's columns go side by
   side and the labels need the full width of their column again. */
@media (max-width: 575.98px) {
  .field-inline-sm {
    display: flex;
    align-items: center;
    gap: .5rem;
  }

  /* A fixed label column keeps the inputs left-aligned with each other; the
     four-character labels (活动名称, 人数上限, 场上位置) set the width. */
  .field-inline-sm > label {
    flex: 0 0 4.25rem;
    margin-bottom: 0;
    white-space: nowrap;
  }

  /* min-width:0 or a long placeholder pushes the input past the flex line. */
  .field-inline-sm > .form-control {
    flex: 1 1 auto;
    min-width: 0;
  }

  /* The hint under a field would land inside that flex row; the placeholders
     say the same thing, so it is dropped rather than wrapped. */
  .field-inline-sm > .form-text {
    display: none;
  }

  /* The page title is the single biggest block of dead height on a phone:
     a bootstrap h3 plus the rule under it costs ~70px before any content.
     Shared by every page that uses .page-head. */
  .page-head {
    margin: .25rem 0 .75rem;
    padding-bottom: .5rem;
    gap: .5rem;
  }

  .page-head h3 {
    font-size: 1.25rem;
  }
}