/* 公開教室ページ。スマホ優先。
   OBSオーバーレイ（style.css）とは別物なので、あちらの数値と連動させないこと。 */

:root {
  --bg-0: #0d1030;
  --bg-1: #171a4a;
  --ink: #f4f6ff;
  --ink-dim: #a3aad3;
  --pink: #ff4fa3;
  --violet: #8b5cf6;
  --cyan: #35d6f5;
  --card: rgba(255, 255, 255, 0.07);
  --card-line: rgba(255, 255, 255, 0.14);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Noto Sans JP', system-ui, sans-serif;
  color: var(--ink);
  /* 単色を必ず敷いてからグラデーションを重ねる。
     background-attachment: fixed は使わない（ページが長いと下部が塗られず、
     iOSでも scroll 扱いにされて崩れるため） */
  background-color: var(--bg-0);
  background-image:
    radial-gradient(900px 600px at 20% -10%, #2a2f7a 0%, transparent 60%),
    radial-gradient(700px 500px at 100% 100%, #4a1b5c 0%, transparent 55%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1));
  background-repeat: no-repeat;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
  -webkit-text-size-adjust: 100%;
}

/* ---------- ヘッダー ---------- */

.v-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--card-line);
  background: linear-gradient(90deg, rgba(255, 79, 163, 0.18), rgba(53, 214, 245, 0.1));
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(10px);
}

.v-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  /* 狭い画面ではタイトルだけで1行を使い、在室数は次の行へ折り返させる。
     ここを詰めるとヘッダーがビューポートより広くなり、ページ全体が横に溢れる */
  flex: 1 1 100%;
}
.v-brand > div {
  min-width: 0;
}
.v-brain {
  font-size: 32px;
  flex: none;
}
.v-title {
  font-size: 16px;
  font-weight: 800;
  line-height: 1.25;
  overflow-wrap: anywhere;
}
.v-sub {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  font-size: 11px;
  color: var(--ink-dim);
  flex-wrap: wrap;
}

.v-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  border: 1px solid var(--card-line);
  color: var(--ink-dim);
}
.v-live .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #6b7099;
}
.v-live[data-live='true'] {
  color: #fff;
  background: rgba(255, 60, 90, 0.25);
  border-color: rgba(255, 60, 90, 0.6);
}
.v-live[data-live='true'] .dot {
  background: #ff3c5a;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(255, 60, 90, 0.7);
  }
  50% {
    box-shadow: 0 0 0 7px rgba(255, 60, 90, 0);
  }
}

.v-stats {
  display: flex;
  gap: 18px;
}
.v-stat {
  text-align: left;
}
.v-stat b {
  display: block;
  font-size: 20px;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.v-stat span {
  font-size: 10px;
  color: var(--ink-dim);
}

.v-realtime {
  margin: 12px 16px 0;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.5;
  color: #ffe9f5;
  background: rgba(255, 79, 163, 0.14);
  border: 1px solid rgba(255, 79, 163, 0.35);
}

/* ---------- レイアウト ---------- */

.v-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 16px;
  max-width: 1280px;
  margin: 0 auto;
}

@media (min-width: 700px) {
  .v-brand {
    flex: 0 1 auto;
  }
  .v-stat {
    text-align: right;
  }
  .v-title {
    font-size: 20px;
  }
}

@media (min-width: 900px) {
  .v-main {
    grid-template-columns: 1fr 320px;
    align-items: start;
  }
  .v-title {
    font-size: 22px;
  }
}

h2 {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  font-weight: 700;
  margin-bottom: 10px;
}
h2 small {
  font-weight: 600;
  letter-spacing: 0;
  margin-left: 8px;
}

/* ---------- 座席 ---------- */

.v-seats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(118px, 1fr));
  gap: 10px;
}

.v-free-head {
  margin-top: 22px;
}
.v-free {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(46px, 1fr));
  gap: 7px;
}
.v-free span {
  display: grid;
  place-items: center;
  padding: 9px 0;
  border-radius: 9px;
  border: 1px dashed rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.03);
  font-size: 12px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.45);
  font-variant-numeric: tabular-nums;
}

.v-seat {
  position: relative;
  border-radius: 14px;
  border: 1px solid var(--card-line);
  background: var(--card);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 0;
}


.v-no {
  position: absolute;
  top: 6px;
  left: 9px;
  font-size: 11px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.35);
  font-variant-numeric: tabular-nums;
}

.v-ring {
  --p: 0;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  flex: none;
  display: grid;
  place-items: center;
  padding: 3px;
  background:
    conic-gradient(var(--pink) calc(var(--p) * 360deg), rgba(255, 255, 255, 0.16) 0),
    radial-gradient(circle, transparent 63%, #000 0);
}
.v-ring img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: #2a2f5c;
  display: block;
}

.v-name {
  font-size: 13px;
  font-weight: 700;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.v-lv {
  font-size: 10px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--violet), var(--pink));
}
.v-task {
  font-size: 12px;
  font-weight: 600;
  color: #ffe9f5;
  text-align: center;
  line-height: 1.3;
  word-break: break-word;
}
.v-time {
  font-size: 14px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}
.v-seat.break {
  filter: grayscale(0.7);
  opacity: 0.65;
}
.v-seat.break .v-time {
  color: var(--ink-dim);
}
.v-break-tag {
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 14px;
}

.v-empty-note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-dim);
}
.v-empty-note code {
  color: #ffe9f5;
}

/* ---------- サイド ---------- */

.v-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.v-card {
  border-radius: 16px;
  border: 1px solid var(--card-line);
  background: rgba(8, 10, 34, 0.45);
  padding: 16px;
}
.v-hint {
  font-size: 11px;
  color: var(--ink-dim);
  line-height: 1.6;
  margin-top: 10px;
}
.v-hint:first-of-type {
  margin-top: 0;
  margin-bottom: 10px;
}

.v-cmds {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.v-cmds li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  flex-wrap: wrap;
}
.v-cmds code {
  font-size: 13px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 8px;
  background: rgba(255, 79, 163, 0.2);
  border: 1px solid rgba(255, 79, 163, 0.4);
  white-space: nowrap;
  cursor: pointer;
  /* タップでコピーできるようにしているので、押せることが分かる見た目にする */
  transition: background 0.15s;
}
.v-cmds code:active,
.v-cmds code.copied {
  background: rgba(53, 214, 245, 0.35);
}
.v-cmds li span {
  font-size: 11px;
  color: var(--ink-dim);
}

.v-watch {
  display: block;
  margin-top: 14px;
  padding: 11px;
  border-radius: 10px;
  text-align: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(90deg, #ff3c5a, var(--pink));
}

.v-ranking {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.v-ranking li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
}
.v-ranking .rank {
  width: 22px;
  font-weight: 800;
  color: var(--ink-dim);
  font-variant-numeric: tabular-nums;
}
.v-ranking img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: #2a2f5c;
}
.v-ranking .rname {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.v-ranking .rms {
  font-weight: 800;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.v-ranking .empty {
  font-size: 12px;
  color: var(--ink-dim);
  line-height: 1.6;
}

.v-footer {
  padding: 24px 16px 32px;
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.28);
}