/* KSVF 2026 shared timetable: 12:00-18:00, one 5-minute grid unit. */

.tt-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 82% 4%, rgba(62,224,216,.11), transparent 30%),
    radial-gradient(circle at 14% 18%, rgba(157,123,255,.1), transparent 28%),
    var(--bg-0);
}

.tt-page-nav {
  min-height: 72px;
  padding: 14px 32px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.tt-page-brand img {
  display: block;
  width: auto;
  height: 28px;
}

.tt-page-nav nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.tt-page-nav nav a {
  color: var(--ink-on-dark-2);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.tt-page-nav nav a:hover,
.tt-page-nav nav a:focus-visible,
.tt-page-nav nav a[aria-current="page"] {
  color: var(--accent-mint);
}

.tt-page-main {
  min-height: calc(100vh - 144px);
}

.tt-page-intro {
  max-width: var(--container);
  margin: 0 auto;
  padding: 80px 32px 0;
}

.tt-page-intro h1 {
  margin: 14px 0 16px;
  color: var(--ink-on-dark-0);
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -.025em;
}

.tt-page-intro p {
  color: var(--ink-on-dark-2);
  font-size: 16px;
  line-height: 1.7;
}

.tt-page-main .schedule {
  padding-top: 72px;
}

.tt-page-footer {
  padding: 24px 32px;
  border-top: 1px solid rgba(255,255,255,.08);
  color: var(--ink-on-dark-3);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.tt-page-footer a {
  color: var(--ink-on-dark-2);
  text-decoration: none;
}

.schedule {
  padding-bottom: 96px;
}

.schedule [hidden] {
  display: none !important;
}

.tt-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.day-tabs {
  display: inline-flex;
  padding: 4px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-pill);
}

.day-tab {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 18px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--ink-on-dark-2);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, color .15s;
}

.day-tab .day-num {
  color: var(--ink-on-dark-3);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .04em;
}

.day-tab:hover,
.day-tab:focus-visible {
  color: var(--ink-on-dark-0);
}

.day-tab.active {
  background: var(--ink-on-dark-0);
  color: var(--bg-0);
}

.day-tab.active .day-num {
  color: rgba(5,10,31,.62);
}

.tt-legend {
  display: inline-flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tt-cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-pill);
  background: rgba(255,255,255,.03);
  color: var(--ink-on-dark-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}

.tt-cat::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.tt-cat:hover,
.tt-cat:focus-visible {
  border-color: rgba(255,255,255,.24);
  color: var(--ink-on-dark-0);
}

.tt-cat.active {
  border-color: transparent;
  color: var(--bg-0);
}

.tt-cat[data-cat="all"] { color: var(--ink-on-dark-1); }
.tt-cat[data-cat="all"]::before { box-shadow: none; }
.tt-cat[data-cat="all"].active { background: var(--ink-on-dark-0); color: var(--bg-0); }
.tt-cat--official { color: #ffae7b; }
.tt-cat--official.active { background: #ffae7b; }
.tt-cat--special { color: var(--accent-yellow); }
.tt-cat--special.active { background: var(--accent-yellow); }
.tt-cat--session { color: var(--accent-cyan); }
.tt-cat--session.active { background: var(--accent-cyan); }
.tt-cat--sovac { color: var(--accent-violet); }
.tt-cat--sovac.active { background: var(--accent-violet); }

.tt-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-md);
  background: rgba(0,0,0,.18);
  box-shadow: 0 28px 90px rgba(0,0,0,.18);
  overscroll-behavior-inline: contain;
}

.tt-grid {
  --tt-header-h: 62px;
  /* [2026-08-29] 3줄짜리 프로그램명이 잘려 행 높이를 키움 (13px -> 18px, 클라이언트 확인용) */
  --tt-unit-h: 18px;
  --tt-time-w: 82px;
  --tt-lane: 0;
  --tt-lanes: 1;
  --tt-lane-left: 0%;
  --tt-lane-width: 100%;
  display: grid;
  grid-template-columns: var(--tt-time-w) repeat(var(--tt-rooms, 1), minmax(190px, 1fr));
  grid-template-rows: var(--tt-header-h) repeat(73, var(--tt-unit-h));
  /* [2026-08-22] 상단·하단 시간 간격이 달라 보이던 원인 수정.
     JS(updateDayRange)가 세션 데이터에 맞춰 시간축을 12~18시 밖으로 늘리면
     위 명시 행 73개를 넘어가는 구간이 암시적 행(height:auto)이 돼 찌부러졌다.
     암시적 행도 같은 단위 높이로 고정해 전 구간 간격을 균일하게 만든다. */
  grid-auto-rows: var(--tt-unit-h);
  min-width: max(100%, calc(var(--tt-time-w) + var(--tt-rooms, 1) * 190px));
}

.tt-room-head {
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,.12);
  border-left: 1px solid rgba(255,255,255,.05);
  background: rgba(13,20,48,.96);
  color: var(--ink-on-dark-0);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 6;
}

.tt-room-head .room-name {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tt-room-head .room-cap {
  max-width: 100%;
  margin-top: 4px;
  overflow: hidden;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .06em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tt-room-head.timecorner {
  grid-column: 1;
  left: 0;
  border-left: 0;
  background: rgba(5,10,31,.98);
  z-index: 8;
}

.tt-time {
  grid-column: 1;
  padding: 7px 12px 0;
  border-top: 1px dashed rgba(255,255,255,.07);
  background: rgba(5,10,31,.96);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  position: sticky;
  left: 0;
  z-index: 4;
}

.tt-time.hour,
.tt-cell.hour {
  border-top-color: rgba(255,255,255,.15);
  border-top-style: solid;
}

.tt-cell {
  border-top: 1px dashed rgba(255,255,255,.055);
  border-left: 1px solid rgba(255,255,255,.045);
  pointer-events: none;
}

.tt-card {
  position: relative;
  z-index: 3;
  align-self: stretch;
  justify-self: start;
  width: calc(var(--tt-lane-width) - 8px);
  margin: 3px 0 3px calc(var(--tt-lane-left) + 4px);
  padding: 9px 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  border-left: 3px solid;
  border-radius: var(--r-sm);
  color: inherit;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  transition: transform .15s, background .15s, box-shadow .15s, opacity .15s;
}

.tt-card:not(.is-static):hover,
.tt-card:not(.is-static):focus-visible {
  z-index: 5;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0,0,0,.28);
}

.tt-card.is-static {
  cursor: default;
}

.tt-card.is-static:hover {
  z-index: 3;
  transform: none;
  box-shadow: none;
}

.tt-card.is-dimmed {
  opacity: .2;
  filter: saturate(.45);
}

.tt-card .tc-time {
  /* [2026-08-22] 클라이언트 요청: 시간·주최 텍스트를 흰색으로 */
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .03em;
}

.tt-card .tc-title {
  color: var(--ink-on-dark-0);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.tt-card .tc-speaker {
  margin-top: auto;
  color: #fff;
  font-size: 11px;
  line-height: 1.35;
}

/* [2026-08-22] 클라이언트 요청: 투명도를 낮춰(알파 상향) 카드 색이 더 잘 보이게 */
.tt-card--official { border-left-color: #ff8d48; background: rgba(255,141,72,.42); }
.tt-card--special { border-left-color: var(--accent-yellow); background: rgba(255,209,102,.40); }
.tt-card--session { border-left-color: var(--accent-cyan); background: rgba(62,224,216,.38); }
.tt-card--sovac { border-left-color: var(--accent-violet); background: rgba(157,123,255,.42); }
.tt-card--official:not(.is-static):hover, .tt-card--official:not(.is-static):focus-visible { background: rgba(255,141,72,.52); }
.tt-card--special:not(.is-static):hover, .tt-card--special:not(.is-static):focus-visible { background: rgba(255,209,102,.50); }
.tt-card--session:not(.is-static):hover, .tt-card--session:not(.is-static):focus-visible { background: rgba(62,224,216,.48); }
.tt-card--sovac:not(.is-static):hover, .tt-card--sovac:not(.is-static):focus-visible { background: rgba(157,123,255,.52); }

.tt-state,
.tt-inline-state {
  text-align: center;
  color: var(--ink-on-dark-2);
}

.tt-state {
  padding: 48px 24px;
  border: 1px dashed rgba(255,255,255,.16);
  border-radius: var(--r-md);
  background: rgba(255,255,255,.025);
}

.tt-state strong,
.tt-state span {
  display: block;
}

.tt-state strong {
  margin-bottom: 8px;
  color: var(--ink-on-dark-0);
  font-size: 17px;
}

.tt-state span {
  font-size: 13px;
  line-height: 1.6;
}

.tt-error-state {
  border-color: rgba(255,122,217,.28);
  background: rgba(255,122,217,.055);
}

.tt-inline-state {
  margin-top: 18px;
  font-size: 13px;
}

@media (max-width: 960px) {
  .tt-page-nav,
  .tt-page-footer {
    padding-right: 20px;
    padding-left: 20px;
  }

  .tt-page-nav nav {
    gap: 14px;
  }

  .tt-page-intro {
    padding: 56px 20px 0;
  }

  .tt-page-main .schedule {
    padding-top: 56px;
  }

  .schedule {
    padding-bottom: 72px;
  }

  .tt-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .day-tabs {
    max-width: 100%;
    overflow-x: auto;
  }

  .tt-grid {
    --tt-unit-h: 16px;
    --tt-time-w: 72px;
    grid-template-columns: var(--tt-time-w) repeat(var(--tt-rooms, 1), minmax(172px, 1fr));
    min-width: calc(var(--tt-time-w) + var(--tt-rooms, 1) * 172px);
  }
}