/* カラー定義（コントラスト重視の黒基調UI） */
:root[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border-color: #475569;
  --accent-color: #3b82f6;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
}

:root[data-theme="light"] {
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border-color: #cbd5e1;
  --accent-color: #2563eb;
  --danger-color: #dc2626;
  --warning-color: #d97706;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, sans-serif; background-color: var(--bg-primary); color: var(--text-primary); height: 100vh; overflow: hidden; }

.app-layout { display: flex; flex-direction: column; height: 100vh; }

/* ヘッダー */
.app-header { height: 60px; background-color: var(--bg-secondary); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; padding: 0 20px; z-index: 1000; }
.header-left { display: flex; align-items: center; gap: 12px; }
.app-title { font-size: 1.25rem; font-weight: 800; letter-spacing: 0.5px; }
.status-badge { font-size: 0.75rem; padding: 4px 10px; border-radius: 9999px; font-weight: bold; }
.status-badge.connected { background-color: #10b981; color: #fff; }
.status-badge.connecting { background-color: var(--warning-color); color: #fff; }

.header-datetime { display: flex; gap: 12px; font-size: 0.95rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.rokuyou-tag { background: var(--bg-primary); padding: 2px 8px; border-radius: 4px; border: 1px solid var(--border-color); font-size: 0.85rem; }

.header-controls { display: flex; align-items: center; gap: 16px; }

/* 見やすい設定ボタン */
.btn-settings { padding: 6px 14px; background: var(--bg-primary); border: 1px solid var(--border-color); color: var(--text-primary); text-decoration: none; border-radius: 6px; font-size: 0.85rem; font-weight: bold; transition: 0.2s; }
.btn-settings:hover { border-color: var(--accent-color); color: var(--accent-color); }

/* メインレイアウト */
.main-content { flex: 1; display: flex; overflow: hidden; position: relative; }

/* サイドバー */
.sidebar { width: 420px; background-color: var(--bg-secondary); border-right: 1px solid var(--border-color); display: flex; flex-direction: column; gap: 16px; padding: 16px; overflow-y: auto; z-index: 10; }
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

/* タブナビゲーション（3カラム） */
.disaster-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; background: var(--bg-primary); padding: 4px; border-radius: 8px; border: 1px solid var(--border-color); }
.tab-btn { padding: 10px 2px; font-size: 0.85rem; font-weight: bold; border: none; background: transparent; color: var(--text-secondary); border-radius: 6px; cursor: pointer; transition: 0.2s; }
.tab-btn.active { background-color: var(--accent-color); color: #ffffff; }

.tab-content { display: none; flex-direction: column; gap: 16px; }
.tab-content.active { display: flex; }

/* カードデザイン */
.card { background-color: var(--bg-card); border-radius: 10px; padding: 16px; border: 1px solid var(--border-color); box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1); }
.card h2 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; border-bottom: 2px solid var(--border-color); padding-bottom: 6px; }
.card h3 { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 8px; }
.sub-text { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 8px; }

/* 地震メイン表示 */
.eq-main-display { display: flex; justify-content: space-between; align-items: center; background: var(--bg-primary); padding: 12px; border-radius: 8px; border: 1px solid var(--border-color); }
.eq-epicenter-box { display: flex; flex-direction: column; gap: 2px; }
.epicenter-title { font-size: 1.2rem; font-weight: bold; color: var(--danger-color); }
.eq-shindo-box { text-align: center; }

/* 震度バッジ */
.shindo-badge { display: inline-block; padding: 6px 14px; border-radius: 8px; font-size: 1.2rem; font-weight: 900; color: #fff; min-width: 70px; text-align: center; }
.tsunami-badge { font-size: 0.8rem; padding: 4px 8px; background: var(--bg-primary); border-radius: 4px; border: 1px solid var(--border-color); font-weight: bold; }

.shindo-0, .shindo-1 { background: #475569; }
.shindo-2 { background: #2563eb; }
.shindo-3 { background: #059669; }
.shindo-4 { background: #d97706; color: #000; }
.shindo-5弱, .shindo-5強 { background: #ea580c; }
.shindo-6弱, .shindo-6強, .shindo-7 { background: #dc2626; }

/* 各種リスト */
.data-list { list-style: none; display: flex; flex-direction: column; gap: 8px; max-height: 260px; overflow-y: auto; font-size: 0.85rem; }
.data-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; background: var(--bg-primary); border-radius: 6px; border: 1px solid var(--border-color); }

/* フォーム */
.schedule-form { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.input-field { width: 100%; padding: 8px 12px; border-radius: 6px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); font-size: 0.9rem; }
.btn { padding: 8px 16px; border: none; border-radius: 6px; font-weight: bold; cursor: pointer; transition: 0.2s; }
.btn-primary { background: var(--accent-color); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-secondary { background: var(--border-color); color: var(--text-primary); }

/* マップ & 震源地✖印 */
.view-wrapper { flex: 1; height: 100%; position: relative; }
.view-container { display: none; width: 100%; height: 100%; }
.view-container.active { display: block; }
#map { width: 100%; height: 100%; background: var(--bg-primary); }

.epicenter-mark { color: #ff0000; font-size: 32px; font-weight: 900; text-align: center; line-height: 28px; text-shadow: 0 0 8px rgba(0,0,0,0.9); }
.map-icon { font-size: 22px; text-align: center; }

/* カレンダー表示 */
#calendar-container { padding: 24px; background: var(--bg-primary); overflow-y: auto; }
.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.cal-day-head { text-align: center; font-weight: bold; padding: 8px; color: var(--text-secondary); }
.cal-cell { background: var(--bg-card); border: 1px solid var(--border-color); min-height: 95px; padding: 8px; border-radius: 6px; display: flex; flex-direction: column; }
.cal-cell.today { border: 2px solid var(--accent-color); }
.cal-event-badge { font-size: 0.75rem; background: var(--accent-color); color: #fff; border-radius: 4px; padding: 2px 6px; margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 全画面バナー */
.emergency-banner { position: absolute; top: 0; left: 0; right: 0; background: #dc2626; color: #fff; padding: 12px; z-index: 2000; font-weight: bold; text-align: center; box-shadow: 0 4px 12px rgba(0,0,0,0.5); }
.emergency-banner.hidden { display: none; }
.pulse-dot { display: inline-block; width: 12px; height: 12px; background: #fff; border-radius: 50%; margin-right: 8px; animation: pulse 1s infinite; }
@keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.2; } 100% { opacity: 1; } }

/* トグルスイッチ */
.theme-switch { position: relative; display: inline-block; width: 40px; height: 20px; }
.theme-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--border-color); transition: .3s; border-radius: 20px; }
.slider:before { position: absolute; content: ""; height: 14px; width: 14px; left: 3px; bottom: 3px; background: white; transition: .3s; border-radius: 50%; }
input:checked + .slider { background-color: var(--accent-color); }
input:checked + .slider:before { transform: translateX(20px); }
.mt-8 { margin-top: 8px; }