/* サイネージ専用フルスクリーンCSS（STARTUSブランドカラー: オレンジ×ブラック） */
:root {
  --sig-bg: #0a0a0a;
  --sig-bg2: #141414;
  --sig-text: #f8fafc;
  --sig-muted: #94a3b8;
  --sig-primary: #ff7a18;       /* STARTUSオレンジ */
  --sig-primary-deep: #e55c00;
  --sig-accent: #ffb547;        /* 明るいオレンジ */
  --sig-success: #34d399;       /* 入会の数字用に緑保持 */
  --sig-danger: #f43f5e;
  --sig-warning: #f59e0b;
  --sig-brand-grad: linear-gradient(135deg, #ff7a18 0%, #ffb547 100%);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--sig-bg);
  color: var(--sig-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Yu Gothic UI', Meiryo, sans-serif;
  cursor: none;
}

/* マウスが動いている時だけ一時的に表示（PCの蓋閉じ時のカーソル中央問題対策） */
body.sig-show-cursor { cursor: auto; }
body.sig-show-cursor .sig-indicator-dot,
body.sig-show-cursor .sig-nav-arrow,
body.sig-show-cursor .sig-playpause-btn,
body.sig-show-cursor .sig-refresh-btn,
body.sig-show-cursor .sig-exit-btn,
body.sig-show-cursor .sig-slides { cursor: pointer; }
body:not(.sig-show-cursor) * { cursor: none !important; }

/* ログイン画面ではカーソル常時表示（auto-hide はサイネージ表示中のみ） */
#sig-login, #sig-login * { cursor: auto !important; }
#sig-login .sig-btn-google { cursor: pointer !important; }

/* 背景: グラデ + 微小アニメ（画面焼け対策） */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 18% 26%, rgba(255, 122, 24, 0.10), transparent 55%),
    radial-gradient(circle at 82% 74%, rgba(255, 181, 71, 0.08), transparent 55%),
    radial-gradient(circle at 50% 100%, rgba(52, 211, 153, 0.06), transparent 55%);
  animation: bgshift 90s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}
@keyframes bgshift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(2vw, -2vh) scale(1.05); }
}

/* === 焼き付き対策: ピクセルシフト === */
/* 固定位置要素(ヘッダー・インジケータ・時計)を3分周期で1〜2px動かす */
@keyframes pxShift {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(1px, 1px); }
  50%  { transform: translate(2px, 0); }
  75%  { transform: translate(1px, -1px); }
  100% { transform: translate(0, 0); }
}
.sig-header,
.sig-indicator-wrap,
.sig-progress { animation: pxShift 180s linear infinite; }

/* === 焼き付き対策: 深夜帯の自動ディマー === */
body.sig-night-mode {
  filter: brightness(0.55) contrast(0.95);
  transition: filter 60s linear;
}

/* === ログイン画面 === */
#sig-login {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.sig-login-card {
  background: rgba(30, 41, 59, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 20px;
  padding: 56px 72px;
  text-align: center;
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}
.sig-login-card h1 {
  margin: 0 0 10px;
  font-size: 1.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.sig-login-card p {
  margin: 0 0 36px;
  color: var(--sig-muted);
}
.sig-btn-google {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  color: #1f2937;
  border: none;
  border-radius: 10px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.sig-btn-google:hover {
  background: #f1f5f9;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}
.sig-error {
  margin-top: 18px;
  color: #fca5a5;
  font-size: 0.9rem;
}

/* === サイネージ本体 === */
#sig-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  z-index: 1;
}

/* ヘッダー */
.sig-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background: linear-gradient(180deg, rgba(0,0,0,0.45), transparent);
  z-index: 2;
}
.sig-header-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
/* SVG をマスクとして使い、背景のオレンジグラデーションがマーク形状に透ける。
   結果: 文字ロゴと同じカラーグラデのマークになる */
.sig-brand-mark {
  display: inline-block;
  width: 30px;
  height: 30px;
  background: var(--sig-brand-grad);
  -webkit-mask: url('../startus-logo/startus-symbol.svg') center / contain no-repeat;
          mask: url('../startus-logo/startus-symbol.svg') center / contain no-repeat;
  filter: drop-shadow(0 0 6px rgba(255, 122, 24, 0.55));
  flex-shrink: 0;
}
.sig-brand-text {
  font-size: 1.5rem;
  letter-spacing: 0.12em;
  background: var(--sig-brand-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sig-brand-sub {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--sig-muted);
  letter-spacing: 0.08em;
}
.sig-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.sig-header-clock {
  font-size: 1.4rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--sig-text);
  background: rgba(15, 23, 42, 0.5);
  padding: 6px 18px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.15);
}

.sig-refresh-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(20, 20, 20, 0.6);
  border: 1px solid rgba(255, 122, 24, 0.3);
  color: var(--sig-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

/* ヘッダー内の小さなアイコンボタン(全画面/ログアウト) */
.sig-header-icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(20, 20, 20, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--sig-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0.55;
  transition: opacity 0.2s, color 0.2s, background 0.2s, transform 0.15s;
}
.sig-header-icon-btn .material-icons { font-size: 18px; }
.sig-header-icon-btn:hover {
  opacity: 1;
  background: rgba(255, 122, 24, 0.18);
  color: var(--sig-primary);
  transform: scale(1.05);
}
.sig-header-icon-btn--logout:hover {
  background: rgba(244, 63, 94, 0.2);
  color: var(--sig-danger);
}
.sig-refresh-btn .material-icons {
  font-size: 22px;
  transition: transform 0.3s;
}
.sig-refresh-btn:hover {
  background: rgba(56,189,248,0.2);
  box-shadow: 0 0 14px rgba(56,189,248,0.35);
  transform: scale(1.06);
}
.sig-refresh-btn:active {
  transform: scale(0.96);
}
.sig-refresh-btn.is-spinning .material-icons {
  animation: refreshSpin 0.8s linear infinite;
}
@keyframes refreshSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* スライド領域 */
.sig-slides {
  flex: 1;
  position: relative;
  margin: 0 24px 12px;
  overflow: hidden;
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.3);
  border: 1px solid rgba(148, 163, 184, 0.08);
}
.sig-slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: 28px 44px 36px;
  opacity: 0;
  transform: translateX(40px) scale(0.98);
  transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.sig-slide.is-active {
  opacity: 1;
  transform: translateX(0) scale(1);
  pointer-events: auto;
}
.sig-slide.is-prev {
  opacity: 0;
  transform: translateX(-40px) scale(0.98);
}

.slide-title {
  font-size: clamp(1.5rem, 2.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--sig-text);
  letter-spacing: 0.03em;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.slide-title::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 0.85em;
  background: linear-gradient(180deg, var(--sig-primary), var(--sig-accent));
  border-radius: 3px;
  align-self: center;
}
.slide-title-sub {
  font-size: 0.6em;
  font-weight: 500;
  color: var(--sig-muted);
}

/* === スライド1: 大数字＋時計 === */
.slide1-clock-wrap {
  text-align: center;
  margin: 8px 0 28px;
}
.slide1-bigclock {
  font-size: clamp(4rem, 11vw, 10rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, #f8fafc 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 4px 24px rgba(56,189,248,0.15);
}
.big-clock-sec {
  font-size: 0.5em;
  -webkit-text-fill-color: var(--sig-muted);
  background: none;
  margin-left: 6px;
}
.slide1-date {
  margin-top: 14px;
  font-size: clamp(1.1rem, 1.6vw, 1.6rem);
  color: var(--sig-muted);
  letter-spacing: 0.06em;
}
.slide1-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: auto;
  margin-bottom: 16px;
}
.slide1-stat {
  position: relative;
  background: linear-gradient(160deg, rgba(20, 20, 20, 0.78) 0%, rgba(10, 10, 10, 0.6) 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 22px;
  padding: 32px 20px 22px;
  text-align: center;
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: transform 0.3s, border-color 0.3s;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
}
.slide1-stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--stat-bar, transparent);
  border-radius: 22px 22px 0 0;
}
.slide1-stat-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--stat-glow, transparent), transparent 65%);
  opacity: 0.7;
  pointer-events: none;
}
.sig-slide.is-active .slide1-stat {
  animation: statPop 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) backwards;
}
.sig-slide.is-active .slide1-stat:nth-child(1) { animation-delay: 0.05s; }
.sig-slide.is-active .slide1-stat:nth-child(2) { animation-delay: 0.15s; }
.sig-slide.is-active .slide1-stat:nth-child(3) { animation-delay: 0.25s; }
@keyframes statPop {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.slide1-stat--primary {
  --stat-glow: rgba(255, 122, 24, 0.32);
  --stat-bar: linear-gradient(90deg, #ff7a18, #ffb547);
}
.slide1-stat--accent {
  --stat-glow: rgba(255, 181, 71, 0.28);
  --stat-bar: linear-gradient(90deg, #ffb547, #ffe082);
}
.slide1-stat--success {
  --stat-glow: rgba(52,211,153,0.25);
  --stat-bar: linear-gradient(90deg, #10b981, #34d399);
}
.slide1-stat-value {
  position: relative;
  font-size: clamp(3rem, 7.5vw, 7rem);
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 16px var(--stat-glow, transparent);
}
.slide1-stat--primary .slide1-stat-value { color: var(--sig-primary); }
.slide1-stat--accent  .slide1-stat-value { color: var(--sig-accent); }
.slide1-stat--success .slide1-stat-value { color: var(--sig-success); }
.slide1-stat-label {
  position: relative;
  font-size: clamp(1rem, 1.3vw, 1.35rem);
  color: var(--sig-text);
  letter-spacing: 0.04em;
  font-weight: 500;
}

/* 比較行(前月同期・前年同月) */
.slide1-stat-compare {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  justify-content: center;
  align-items: center;
  margin-top: 4px;
}
.slide1-stat-compare-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  font-variant-numeric: tabular-nums;
}
.slide1-stat-compare-item .material-icons { font-size: 13px; }
.slide1-stat-compare-item.is-up {
  color: #34d399;
  background: rgba(52,211,153,0.1);
  border-color: rgba(52,211,153,0.25);
}
.slide1-stat-compare-item.is-down {
  color: #f87171;
  background: rgba(248,113,113,0.1);
  border-color: rgba(248,113,113,0.25);
}
.slide1-stat-compare-item.is-neutral {
  color: var(--sig-muted);
}

/* === スライド2: 教室別グラフ === */
.slide2-chart-wrap {
  flex: 1;
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(148,163,184,0.1);
  border-radius: 14px;
  padding: 20px;
  min-height: 0;
}

/* === スライド3: 週次サマリー === */
.slide3-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 22px;
  margin-bottom: 32px;
  flex: 1;
  align-content: center;
}
.slide3-card {
  background: rgba(30, 41, 59, 0.55);
  border: 2px solid var(--card-color, rgba(148,163,184,0.2));
  border-radius: 18px;
  padding: 32px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(6px);
}
.slide3-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-color);
}
.sig-slide.is-active .slide3-card {
  animation: cardFlip 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) backwards;
}
.sig-slide.is-active .slide3-card:nth-child(1) { animation-delay: 0.08s; }
.sig-slide.is-active .slide3-card:nth-child(2) { animation-delay: 0.16s; }
.sig-slide.is-active .slide3-card:nth-child(3) { animation-delay: 0.24s; }
.sig-slide.is-active .slide3-card:nth-child(4) { animation-delay: 0.32s; }
.sig-slide.is-active .slide3-card:nth-child(5) { animation-delay: 0.40s; }
@keyframes cardFlip {
  from { opacity: 0; transform: translateY(24px) rotateX(-10deg); }
  to   { opacity: 1; transform: translateY(0) rotateX(0); }
}
.slide3-card-icon {
  color: var(--card-color);
  font-size: clamp(2rem, 3.5vw, 3rem) !important;
  filter: drop-shadow(0 0 12px var(--card-color));
}
.slide3-card-count {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 800;
  color: var(--card-color);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.slide3-card-label {
  font-size: clamp(1rem, 1.3vw, 1.4rem);
  color: var(--sig-text);
  letter-spacing: 0.05em;
}
.slide3-total {
  text-align: center;
  font-size: clamp(1.1rem, 1.5vw, 1.5rem);
  color: var(--sig-muted);
}
.slide3-total strong {
  color: var(--sig-primary);
  font-size: 1.4em;
  margin: 0 8px;
  font-weight: 800;
}

/* === スライド4: カレンダー === */
.slide4-iframe {
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 14px;
  background: #fff;
}
.slide4-fallback {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 14px;
  background: #fff;
}
.slide4-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
  color: var(--sig-muted);
  text-align: center;
}
.slide4-empty .material-icons {
  font-size: 4rem;
  margin-bottom: 16px;
}
.slide4-empty p { margin: 4px 0; }
.slide4-empty-hint {
  font-size: 0.9rem;
  max-width: 580px;
}
.slide4-empty code {
  background: rgba(255,255,255,0.08);
  padding: 2px 7px;
  border-radius: 4px;
  font-family: monospace;
  color: var(--sig-primary);
}

/* === 矢印ナビゲーション === マウス静止時は非表示 */
.sig-nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(20, 20, 20, 0.55);
  border: 1px solid rgba(255, 122, 24, 0.2);
  color: var(--sig-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, background 0.2s, transform 0.2s;
  backdrop-filter: blur(8px);
}
.sig-nav-arrow .material-icons { font-size: 36px; }
.sig-nav-arrow--prev { left: 16px; }
.sig-nav-arrow--next { right: 16px; }
body.sig-show-cursor .sig-nav-arrow {
  opacity: 0.5;
  pointer-events: auto;
}
body.sig-show-cursor .sig-nav-arrow:hover {
  opacity: 1;
  background: rgba(255, 122, 24, 0.28);
  transform: translateY(-50%) scale(1.08);
}

/* === 進行バー === */
.sig-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgba(148,163,184,0.1);
}
.sig-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--sig-primary), var(--sig-accent));
  box-shadow: 0 0 12px rgba(56,189,248,0.5);
}
.sig-slides.is-paused .sig-progress-bar {
  background: rgba(148,163,184,0.4);
  box-shadow: none;
}

/* === インジケータ === */
.sig-indicator-wrap {
  padding: 4px 0 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.sig-indicator {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  width: 100%;
}
.sig-indicator-dot {
  position: relative;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.35);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}
.sig-indicator-dot::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
}
.sig-indicator-dot:hover {
  background: var(--sig-text);
  transform: scale(1.25);
}
.sig-indicator-dot.is-active {
  background: var(--sig-primary);
  transform: scale(1.3);
  box-shadow: 0 0 12px var(--sig-primary), 0 0 0 4px rgba(56,189,248,0.15);
}
.sig-hint {
  font-size: 0.75rem;
  color: var(--sig-muted);
  opacity: 0.5;
  letter-spacing: 0.05em;
}

/* === 再生/一時停止 ボタン（右端絶対配置・ドット中央配置を維持） === */
.sig-playpause-btn {
  position: absolute;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(56,189,248,0.18);
  border: 1px solid rgba(56,189,248,0.4);
  color: var(--sig-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 12px rgba(56,189,248,0.25);
}
.sig-playpause-btn .material-icons {
  font-size: 20px;
}
.sig-playpause-btn:hover {
  background: rgba(56,189,248,0.35);
  transform: translateY(-50%) scale(1.12);
  box-shadow: 0 0 18px rgba(56,189,248,0.5);
}
.sig-playpause-btn.is-paused {
  background: rgba(244,114,182,0.2);
  border-color: rgba(244,114,182,0.5);
  color: var(--sig-accent);
  box-shadow: 0 0 14px rgba(244,114,182,0.4);
  animation: pulseBtn 1.6s ease-in-out infinite;
}
.sig-playpause-btn.is-paused:hover {
  background: rgba(244,114,182,0.35);
  box-shadow: 0 0 18px rgba(244,114,182,0.55);
}
@keyframes pulseBtn {
  0%, 100% { box-shadow: 0 0 12px rgba(244,114,182,0.3); }
  50%      { box-shadow: 0 0 22px rgba(244,114,182,0.6); }
}

/* === 中央パルスアイコン（一時停止/再開トグル時の視覚フィードバック） === */
.sig-center-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.6);
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.72);
  border: 2px solid rgba(148, 163, 184, 0.3);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sig-text);
  opacity: 0;
  pointer-events: none;
  z-index: 30;
}
.sig-center-pulse .material-icons {
  font-size: 72px;
}
.sig-center-pulse.is-on {
  animation: centerPulse 0.85s ease-out forwards;
}
@keyframes centerPulse {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  20%  { opacity: 0.95; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.3); }
}

/* スライド領域のクリック可能カーソル */
.sig-slides { cursor: pointer; }
.sig-slides .sig-indicator-dot,
.sig-slides .sig-nav-arrow { cursor: pointer; }

/* === ホバープレビューカード === */
.sig-preview-card {
  position: absolute;
  bottom: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%) translateY(6px) scale(0.92);
  width: 240px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 14px;
  padding: 14px 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s, transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 20;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  backdrop-filter: blur(12px);
  text-align: left;
}
.sig-preview-card::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 7px solid transparent;
  border-top-color: rgba(15, 23, 42, 0.95);
}
.sig-indicator-dot:hover .sig-preview-card {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
  pointer-events: auto;
}
.sig-preview-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px solid rgba(148,163,184,0.15);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--sig-primary);
}
.sig-preview-head .material-icons {
  font-size: 18px;
}
.sig-preview-body {
  color: var(--sig-text);
}
.sig-preview-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 4px 0;
  font-size: 0.85rem;
}
.sig-preview-num {
  font-size: 1.4rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 50px;
  text-align: right;
}
.sig-preview-lab {
  color: var(--sig-muted);
  font-size: 0.8rem;
}
.sig-preview-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  text-align: center;
}
.sig-preview-grid div {
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.sig-preview-grid small {
  font-size: 0.65rem;
  color: var(--sig-muted);
  font-weight: 400;
}
.sig-preview-sub {
  font-size: 0.78rem;
  color: var(--sig-muted);
  margin-top: 6px;
}
.sig-preview-loading {
  color: var(--sig-muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 8px 0;
}

/* スライド4はカレンダー描画用にpadding 0 */
#sig-slide-4 { padding: 0; }
#sig-slide-4 .sig-loading { padding: 28px 44px; }

/* === スライド4: ダーク版 Googleカレンダー風 日表示タイムライン === */
.slide4-cal-wrap {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  background: #262d3f;
  color: #e2e8f0;
  border-radius: 14px;
  overflow: hidden;
  font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Yu Gothic UI', Meiryo, sans-serif;
  --cal-border: rgba(255, 255, 255, 0.07);
  --cal-border-strong: rgba(255, 255, 255, 0.12);
  --cal-text-mute: #94a3b8;
  --cal-bg-sub: #232a3a;
}
.slide4-cal-header {
  padding: 12px 24px 10px;
  border-bottom: 1px solid var(--cal-border-strong);
  background: #262d3f;
}
.slide4-cal-date {
  font-size: clamp(1rem, 1.3vw, 1.35rem);
  font-weight: 500;
  color: #e2e8f0;
  letter-spacing: 0.03em;
}

/* カラムヘッダー（職員名の行） */
.slide4-cal-cols {
  display: grid;
  grid-template-columns: 56px repeat(var(--col-count, 6), 1fr);
  border-bottom: 1px solid var(--cal-border-strong);
  background: #262d3f;
  flex-shrink: 0;
}
.cal-col-header {
  padding: 10px 8px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: clamp(0.85rem, 1.05vw, 1.05rem);
  font-weight: 500;
  color: #e2e8f0;
  border-left: 1px solid var(--cal-border);
  letter-spacing: 0.02em;
}
.cal-col-header--time { border-left: 0; }
.cal-col-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cal-color, #3b82f6);
  box-shadow: 0 0 8px var(--cal-color, #3b82f6);
  flex-shrink: 0;
}
.cal-col-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 終日予定バー */
.slide4-cal-allday {
  display: grid;
  grid-template-columns: 56px repeat(var(--col-count, 6), 1fr);
  border-bottom: 1px solid var(--cal-border-strong);
  background: var(--cal-bg-sub);
  min-height: 24px;
  max-height: 56px;
  overflow-y: auto;
  flex-shrink: 0;
}
.cal-allday-label {
  padding: 6px 8px;
  font-size: 0.7rem;
  color: var(--cal-text-mute);
  text-align: right;
  border-right: 1px solid var(--cal-border);
  align-self: center;
}
.cal-allday-cell {
  padding: 3px 4px;
  border-left: 1px solid var(--cal-border);
  display: flex;
  flex-direction: column;
  gap: 3px;
  justify-content: center;
}
.cal-allday-pill {
  font-size: 0.75rem;
  color: #fff;
  padding: 2px 9px;
  border-radius: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
  position: relative;
  isolation: isolate;
}
.cal-allday-pill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.22);
  border-radius: inherit;
  pointer-events: none;
  z-index: -1;
}

/* タイムライン本体 — 画面に6:00-22:00を全部フィット(スクロールなし) */
.slide4-cal-body {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #262d3f;
  min-height: 0;
}

/* 時間グリッド: 17行 = 6:00〜22:00 を画面高さに均等分割 */
.slide4-cal-grid {
  display: grid;
  grid-template-columns: 56px repeat(var(--col-count, 6), 1fr);
  grid-template-rows: repeat(17, 1fr);
  height: 100%;
}
.cal-hour-row { display: contents; }
.cal-hour-label {
  padding: 0 8px 0 0;
  font-size: 0.7rem;
  color: var(--cal-text-mute);
  text-align: right;
  border-top: 1px solid var(--cal-border);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  transform: translateY(-7px);
}
.cal-hour-cell {
  border-top: 1px solid var(--cal-border);
  border-left: 1px solid var(--cal-border);
}

/* 予定ブロック（絶対配置レイヤー） */
.slide4-cal-events {
  position: absolute;
  top: 0;
  left: 56px;
  right: 0;
  height: 100%;
  pointer-events: none;
  display: grid;
  grid-template-columns: repeat(var(--col-count, 6), 1fr);
}
.cal-event-col {
  position: relative;
}
.cal-event {
  position: absolute;
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 0.78rem;
  color: #fff;
  overflow: hidden;
  line-height: 1.25;
  box-shadow: 0 1px 2px rgba(0,0,0,0.4);
  border: 1px solid rgba(255, 255, 255, 0.22);
}
.cal-event::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.22);
  border-radius: inherit;
  pointer-events: none;
}
.cal-event > * { position: relative; z-index: 1; }
.cal-event-title {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.82rem;
}
.cal-event-time {
  font-size: 0.7rem;
  opacity: 0.95;
  margin-top: 1px;
  font-variant-numeric: tabular-nums;
}
.cal-event-loc {
  font-size: 0.68rem;
  opacity: 0.88;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}

/* 現在時刻ライン（赤） */
.cal-now-line {
  position: absolute;
  left: -6px;
  right: 0;
  height: 2px;
  background: #ef4444;
  box-shadow: 0 0 8px rgba(239,68,68,0.7);
  z-index: 3;
  pointer-events: none;
}
.cal-now-line::before {
  content: '';
  position: absolute;
  left: -2px;
  top: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 8px rgba(239,68,68,0.8);
}

/* === スライド更新間隔の注釈（右下に控えめに） === */
.sig-slide-note {
  position: absolute;
  bottom: 18px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: rgba(226, 232, 240, 0.32);
  letter-spacing: 0.04em;
  pointer-events: none;
  user-select: none;
}
.sig-slide-note .material-icons {
  font-size: 13px;
  opacity: 0.7;
}
.sig-slide-note-sep {
  opacity: 0.5;
  margin: 0 2px;
}
.sig-slide-note-last {
  font-variant-numeric: tabular-nums;
  opacity: 0.85;
}
.sig-slide-note--cal {
  background: rgba(15, 23, 42, 0.78);
  padding: 4px 10px;
  border-radius: 999px;
  color: rgba(226, 232, 240, 0.6);
  border: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(4px);
  bottom: 14px;
  right: 16px;
}

/* 最終更新が古い時: 赤字で注意喚起 */
.sig-slide-note.is-stale {
  color: #fca5a5;
  font-size: 0.82rem;
  background: rgba(127, 29, 29, 0.35);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(248, 113, 113, 0.4);
  animation: sig-stale-pulse 2.2s ease-in-out infinite;
}
.sig-slide-note.is-stale .material-icons {
  color: #f87171;
  opacity: 1;
}
.sig-slide-note.is-stale .sig-slide-note-last {
  color: #fecaca;
  opacity: 1;
}
@keyframes sig-stale-pulse {
  0%, 100% { box-shadow: 0 0 0 rgba(248,113,113,0); }
  50%      { box-shadow: 0 0 12px rgba(248,113,113,0.35); }
}

/* === セッション切れ警告バナー === */
#sig-session-banner {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translate(-50%, -120%);
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #b91c1c, #dc2626);
  color: #fff;
  padding: 12px 20px 12px 16px;
  border-radius: 999px;
  box-shadow: 0 12px 40px rgba(220, 38, 38, 0.4);
  z-index: 9999;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  max-width: min(760px, 92vw);
}
#sig-session-banner.is-visible {
  transform: translate(-50%, 0);
}
#sig-session-banner .material-icons {
  font-size: 22px;
  color: #fee2e2;
}
.sig-session-banner-text {
  flex: 1;
  line-height: 1.4;
}
.sig-session-banner-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
.sig-session-banner-btn:hover { background: rgba(255,255,255,0.28); }
.sig-session-banner-btn .material-icons { font-size: 16px; color: #fff; }

/* === ローディング === */
.sig-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--sig-muted);
  font-size: 1.1rem;
}

/* (旧 .sig-exit-btn / .sig-corner-btn は廃止。
    ヘッダーの .sig-header-icon-btn に統合済み) */