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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3350;
  --accent: #4f8ef7;
  --accent2: #7c6fff;
  --text: #e2e8f0;
  --text-muted: #8892b0;
  --danger: #f75555;
  --success: #4ade80;
  --warn: #fbbf24;
  --radius: 8px;
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

#app {
  display: grid;
  grid-template-rows: auto auto 1fr;
  grid-template-columns: 380px 1fr;
  grid-template-areas:
    "header header"
    "controls map"
    "controls map";
  height: 100vh;
  overflow: hidden;
}

/* ── Header ── */
#header {
  grid-area: header;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 16px;
}
#header h1 { font-size: 1.3rem; color: var(--accent); letter-spacing: .02em; }
.subtitle { font-size: .8rem; color: var(--text-muted); }

/* ── Controls sidebar ── */
#controls {
  grid-area: controls;
  overflow-y: auto;
  padding: 16px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.control-section {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.control-section h2 {
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 12px;
}

/* File drop zone */
.file-drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 20px 12px;
  text-align: center;
  transition: border-color .2s, background .2s;
  cursor: pointer;
}
.file-drop-zone:hover, .file-drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(79,142,247,.06);
}
.file-drop-zone input[type="file"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.file-drop-zone label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
  cursor: pointer;
  font-size: .85rem;
  color: var(--text-muted);
}
.drop-icon { font-size: 2rem; }
.file-hint { font-size: .72rem; color: var(--text-muted); opacity: .6; }

/* Date row */
.date-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.date-row label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: .8rem;
  color: var(--text-muted);
}
.date-row input[type="date"] {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 6px 8px;
  font-size: .85rem;
  width: 100%;
  colorscheme: dark;
}
.date-row input[type="date"]:focus { outline: 1px solid var(--accent); }

/* Playback row */
.playback-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.speed-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: .8rem;
  color: var(--text-muted);
}
select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 4px 6px;
  font-size: .8rem;
}
.time-display {
  font-size: .8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  margin-left: auto;
}

.progress-wrap { margin-top: 10px; }

/* ヒートマップバー */
#heatmapCanvas {
  display: block;
  width: 100%;
  height: 8px;
  border-radius: 3px;
  margin-top: 3px;
  opacity: .85;
}

/* 再生範囲入力行 */
.time-range-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.seek-action-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}
.range-label {
  font-size: .72rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.range-sep { font-size: .8rem; color: var(--text-muted); }
.time-range-row input[type="time"] {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 4px 6px;
  font-size: .8rem;
  colorscheme: dark;
  width: 88px;
}
.time-range-row input[type="time"]:focus { outline: 1px solid var(--accent); }
.time-range-row input[type="time"]:disabled { opacity: .35; }

/* 小ボタン */
.btn-sm {
  padding: 4px 9px;
  font-size: .72rem;
}
.btn-set-range {
  min-width: 0;
  text-align: center;
}
.btn-reload {
  width: 100%;
  margin-top: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .78rem;
  text-align: center;
}
.btn-reload:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }

/* 線スタイルコントロール */
.style-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: .78rem;
  color: var(--text-muted);
}
.skip-label { gap: 5px; }
.skip-label input[type="checkbox"] {
  width: 14px; height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
}

input[type="color"] {
  width: 28px;
  height: 22px;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px;
  background: var(--bg);
  cursor: pointer;
}

/* タイムラインルーラー */
#timelineRuler {
  position: relative;
  height: 36px;
  margin-top: 4px;
  user-select: none;
}

/* ルーラー全体をまたぐ横線 */
#timelineRuler::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0; right: 0;
  height: 1px;
  background: var(--border);
}

.ruler-tick {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--text-muted);
  font-size: .72rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  line-height: 1;
  transition: color .15s;
}

/* 中間点は中央揃え */
.ruler-tick.mid  { transform: translateX(-50%); }
/* スタートは左揃え */
.ruler-tick.edge-start { left: 0 !important; transform: none; align-items: flex-start; }
/* ゴールは右揃え */
.ruler-tick.edge-end   { left: auto !important; right: 0; transform: none; align-items: flex-end; }

.ruler-tick::before {
  content: '';
  display: block;
  width: 1px;
  height: 7px;
  background: currentColor;
}
.ruler-tick.edge-start::before,
.ruler-tick.edge-end::before { height: 10px; width: 2px; background: var(--accent2); }

.ruler-tick:hover { color: var(--accent); }

/* ラベル行 */
.ruler-label {
  display: block;
  font-size: .7rem;
}
.ruler-sub {
  display: block;
  font-size: .6rem;
  opacity: .7;
  margin-top: 1px;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}
input[type="range"]:disabled { opacity: .4; cursor: default; }

/* Record row */
.record-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.hint { font-size: .72rem; color: var(--text-muted); margin-top: 8px; line-height: 1.5; }

/* Buttons */
.btn {
  padding: 7px 14px;
  border: none;
  border-radius: var(--radius);
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  background: var(--border);
  color: var(--text);
}
.btn:hover:not(:disabled) { opacity: .85; transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: .35; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-play    { background: var(--success); color: #000; }
.btn-record  { background: var(--danger); color: #fff; }
.btn-cancel  { background: var(--warn) !important; color: #000 !important; }

/* Status messages */
.status-msg {
  font-size: .78rem;
  padding: 6px 10px;
  border-radius: 4px;
  margin-top: 8px;
  background: rgba(255,255,255,.04);
  border-left: 3px solid var(--text-muted);
}
.status-msg.success { border-color: var(--success); color: var(--success); }
.status-msg.error   { border-color: var(--danger);  color: var(--danger);  }
.status-msg.info    { border-color: var(--accent);   color: var(--accent);  }
.status-msg.warn    { border-color: var(--warn);     color: var(--warn);    }
.download-status {
  display: block;
  flex: 1 1 100%;
  color: var(--text);
}
.download-message {
  display: block;
  color: var(--success);
  line-height: 1.45;
}
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.download-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  text-decoration: none;
}
.btn-download { background: var(--success); color: #07110a; }
.hidden { display: none !important; }

/* ── Map ── */
#mapContainer {
  grid-area: map;
  position: relative;
  overflow: hidden;
}
#map {
  width: 100%;
  height: 100%;
  background: #111;
}
#mapAttribution {
  position: absolute;
  left: 10px;
  top: 10px;
  z-index: 1000;
  max-width: calc(100% - 20px);
  padding: 5px 8px;
  border-radius: 5px;
  background: rgba(255,255,255,.92);
  color: #1f2937;
  font-size: .74rem;
  font-weight: 600;
  line-height: 1.25;
  pointer-events: auto;
}
#mapAttribution a {
  color: inherit;
  text-decoration: underline;
}
#mapOverlay {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1000;
  pointer-events: none;
}
.map-date-label {
  background: rgba(15,17,23,.85);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text);
  backdrop-filter: blur(4px);
}

/* Leaflet dark overrides */
.leaflet-tile { filter: brightness(.85) saturate(.7); }

/* Responsive: narrow screens stack vertically */
@media (max-width: 700px) {
  #app {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 50vh auto;
    grid-template-areas:
      "header"
      "map"
      "map"
      "controls";
    height: auto;
    overflow: auto;
  }
  #mapContainer { height: 50vh; }
  #controls { overflow-y: visible; border-right: none; border-top: 1px solid var(--border); }

  /* 地図を先に見せるためコントロールは後ろ。ファイル選択は先頭に */
  .playback-row { gap: 10px; }

  /* タッチしやすいボタンサイズ */
  .btn { padding: 10px 16px; font-size: .88rem; }
  .btn-sm { padding: 8px 12px; font-size: .8rem; }
  .seek-action-row {
    grid-template-columns: 1fr 1fr;
  }
  .seek-action-row .range-label {
    grid-column: 1 / -1;
  }

  /* タッチしやすいセレクト */
  select { padding: 8px 8px; font-size: .85rem; }
  input[type="color"] { width: 36px; height: 32px; }
  input[type="range"] { height: 28px; }

  /* 時刻入力 */
  .time-range-row input[type="time"] { width: 100px; padding: 8px 6px; font-size: .85rem; }

  /* プログレスバーを太く (指で触りやすく) */
  input[type="range"] { height: 24px; }

  /* ファイル選択ゾーンでドロップの説明を変更 */
  .file-hint::after { content: ' (タップして選択)'; }

  /* スタイルラベルの間隔 */
  .style-label { gap: 6px; font-size: .82rem; }

  /* ヘッダーをコンパクトに */
  #header { padding: 10px 16px; }
  #header h1 { font-size: 1.1rem; }
  .subtitle { display: none; }
}