/* =====================================================
   台灣海平面上升觀測站 — Redesigned
   ===================================================== */

:root {
  --bg:      #020B18;
  --surface: #0A1628;
  --panel:   rgba(10, 22, 50, 0.82);
  --blue:    #0EA5E9;
  --cyan:    #06B6D4;
  --green:   #10B981;
  --amber:   #F59E0B;
  --orange:  #F97316;
  --red:     #EF4444;
  --purple:  #7c3aed;
  --text:    #E2E8F0;
  --muted:   #94A3B8;
  --dim:     #475569;
  --border:  rgba(14, 165, 233, 0.18);
  --r:       12px;
  --r-sm:    8px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  width: 100%; height: 100%; overflow: hidden;
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg); color: var(--text);
}

/* === Wave bg === */
.wave-bg { position: fixed; bottom: 0; left: 0; right: 0; height: 200px; pointer-events: none; z-index: 0; opacity: 0.1; }
.wave { position: absolute; bottom: 0; width: 200%; height: 120px; fill: var(--blue); }
.wave-1 { animation: waveMove 8s linear infinite; }
.wave-2 { animation: waveMove 12s linear infinite reverse; opacity: 0.6; fill: var(--cyan); }
@keyframes waveMove { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* === App shell: 4-row grid === */
.app {
  position: relative; z-index: 1;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  height: 100vh;
  gap: 6px;
  padding: 8px;
}

/* === Topbar === */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 14px;
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border); border-radius: var(--r);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { font-size: 1.5rem; filter: drop-shadow(0 0 8px var(--blue)); }
.brand-title {
  font-size: 1rem; font-weight: 700;
  background: linear-gradient(135deg, #fff 30%, var(--blue));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.brand-sub { font-size: 0.6rem; color: var(--dim); margin-top: 1px; }
.badges { display: flex; gap: 5px; }
.badge {
  padding: 2px 8px;
  background: rgba(14,165,233,0.1); border: 1px solid rgba(14,165,233,0.3);
  border-radius: 4px; font-size: 0.62rem; color: var(--blue); letter-spacing: 0.5px;
}

/* === Scenario bar === */
.scenario-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 12px;
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border); border-radius: var(--r);
  overflow-x: auto;
}
.scenario-bar::-webkit-scrollbar { display: none; }

.scenario-tab {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 13px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px; flex-shrink: 0;
  cursor: pointer; transition: all 0.2s;
  color: var(--muted); white-space: nowrap;
}
.scenario-tab:hover { background: rgba(255,255,255,0.08); color: var(--text); }
.scenario-tab.active { color: var(--text); }
.scenario-tab.active[data-scenario="ssp126"]          { background: rgba(16,185,129,0.15);  border-color: var(--green);  }
.scenario-tab.active[data-scenario="ssp245"]          { background: rgba(245,158,11,0.15);  border-color: var(--amber);  }
.scenario-tab.active[data-scenario="ssp585"]          { background: rgba(249,115,22,0.15);  border-color: var(--orange); }
.scenario-tab.active[data-scenario="ssp_extreme"]     { background: rgba(239,68,68,0.15);   border-color: var(--red);    }
.scenario-tab.active[data-scenario="ssp_catastrophe"] { background: rgba(124,58,237,0.18);  border-color: var(--purple); }

.tab-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-green      { background: var(--green);  box-shadow: 0 0 5px var(--green);  }
.dot-amber      { background: var(--amber);  box-shadow: 0 0 5px var(--amber);  }
.dot-red        { background: var(--orange); box-shadow: 0 0 5px var(--orange); }
.dot-purple     { background: var(--red);    box-shadow: 0 0 5px var(--red);    }
.dot-darkpurple { background: var(--purple); box-shadow: 0 0 5px var(--purple); }

.tab-name { font-size: 0.8rem; font-weight: 600; }
.tab-rise { font-size: 0.72rem; color: var(--blue); font-weight: 700; font-variant-numeric: tabular-nums; }

.scenario-desc {
  flex-shrink: 0; margin-left: auto;
  font-size: 0.68rem; color: var(--muted); line-height: 1.5;
  max-width: 320px; padding-left: 14px;
  border-left: 1px solid var(--border);
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* === Workspace === */
.workspace { display: flex; gap: 6px; min-height: 0; }

/* === Side panel === */
.side-panel {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; gap: 6px;
  overflow-y: auto; min-height: 0;
  order: -1; /* 桌機：DOM 是 map→side，order:-1 讓 side 視覺排左 */
}
.side-panel::-webkit-scrollbar { width: 4px; }
.side-panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; flex-shrink: 0; }
.stat-card {
  padding: 10px 11px;
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border); border-radius: var(--r-sm);
  display: flex; flex-direction: column;
}
.stat-val  { font-size: 1.5rem; font-weight: 800; color: var(--blue); font-variant-numeric: tabular-nums; line-height: 1; }
.stat-unit { font-size: 0.63rem; color: var(--dim); margin-top: 2px; }
.stat-lbl  { font-size: 0.65rem; color: var(--muted); margin-top: 4px; }

.panel-box {
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border); border-radius: var(--r);
  padding: 12px; display: flex; flex-direction: column;
}
.box-title {
  font-size: 0.7rem; font-weight: 700; color: var(--muted);
  letter-spacing: 0.5px; text-transform: uppercase;
  margin-bottom: 8px;
  display: flex; align-items: baseline; justify-content: space-between;
}
.box-sub { font-size: 0.7rem; color: var(--blue); font-variant-numeric: tabular-nums; font-weight: 600; text-transform: none; letter-spacing: 0; }

.chart-box { flex: 1; min-height: 0; }
.chart-wrap { flex: 1; min-height: 120px; position: relative; }
.chart-wrap canvas { width: 100% !important; height: 100% !important; }

.cities-box { flex-shrink: 0; }
.cities-list { display: flex; flex-wrap: wrap; gap: 5px; }
.city-tag {
  padding: 3px 9px;
  background: rgba(14,165,233,0.1); border: 1px solid rgba(14,165,233,0.3);
  border-radius: 20px; font-size: 0.7rem; color: var(--blue); font-weight: 500; white-space: nowrap;
}
.city-none { font-size: 0.7rem; color: var(--dim); }

/* === Map === */
.map-section {
  flex: 1; position: relative; min-width: 0; max-width: 50%; order: 0;
  border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--border);
}
#map { width: 100%; height: 100%; }

.map-hud {
  position: absolute; top: 10px; left: 10px; z-index: 900; display: flex; gap: 6px;
}
.hud-badge {
  padding: 5px 12px;
  background: rgba(2,11,24,0.88); backdrop-filter: blur(8px);
  border-radius: 20px; font-size: 0.73rem; font-weight: 600; font-variant-numeric: tabular-nums;
}
.hud-level    { border: 1px solid var(--blue);  color: var(--blue);  }
.mode-history { border: 1px solid var(--cyan);  color: var(--cyan);  }
.mode-future  { border: 1px solid var(--amber); color: var(--amber); }

.map-legend {
  position: absolute; bottom: 10px; right: 10px; z-index: 900;
  padding: 8px 11px;
  background: rgba(2,11,24,0.88); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: var(--r-sm);
}
.legend-title { font-size: 0.63rem; color: var(--muted); margin-bottom: 5px; font-weight: 600; letter-spacing: 0.4px; }
.legend-items { display: flex; flex-direction: column; gap: 4px; }
.legend-item  { display: flex; align-items: center; gap: 6px; font-size: 0.62rem; color: var(--muted); }
.lc { width: 14px; height: 8px; border-radius: 2px; border: 1px solid; flex-shrink: 0; }

/* Leaflet popup */
.leaflet-popup-content-wrapper {
  background: rgba(10,22,50,0.95); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-sm);
  backdrop-filter: blur(12px); box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.leaflet-popup-tip { background: rgba(10,22,50,0.95); }
.leaflet-popup-content { margin: 10px 14px; font-size: 0.78rem; }

/* === Control bar === */
.control-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 14px;
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border); border-radius: var(--r);
}

.playback-btns { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.ctrl-btn {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-sm); color: var(--muted); font-size: 0.85rem;
  cursor: pointer; transition: all 0.15s;
}
.ctrl-btn:hover { background: rgba(14,165,233,0.15); border-color: var(--blue); color: var(--blue); }
.play-btn {
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(14,165,233,0.2); border-color: var(--blue); color: var(--blue); font-size: 1rem;
  box-shadow: 0 0 14px rgba(14,165,233,0.25);
}
.play-btn:hover { background: rgba(14,165,233,0.3); box-shadow: 0 0 22px rgba(14,165,233,0.45); }
.play-btn.playing { background: rgba(14,165,233,0.3); box-shadow: 0 0 18px rgba(14,165,233,0.4); }

.gran-group { display: flex; gap: 3px; flex-shrink: 0; }
.gran-btn {
  padding: 5px 10px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px; color: var(--muted); font-size: 0.7rem; font-weight: 600;
  cursor: pointer; transition: all 0.15s;
}
.gran-btn:hover { background: rgba(255,255,255,0.09); color: var(--text); }
.gran-btn.active { background: rgba(14,165,233,0.15); border-color: var(--blue); color: var(--blue); }

.timeline-track { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.timeline-labels { display: flex; justify-content: space-between; font-size: 0.58rem; color: var(--dim); padding: 0 2px; }
.label-today { color: var(--cyan); font-weight: 600; }

.slider-wrapper { position: relative; height: 22px; }
.slider-track-bg {
  position: absolute; top: 50%; transform: translateY(-50%);
  left: 0; right: 0; height: 6px; border-radius: 3px;
  background: rgba(255,255,255,0.05); overflow: hidden; display: flex;
}
.slider-track-history { background: linear-gradient(to right, rgba(6,182,212,0.3), rgba(14,165,233,0.5)); }
.slider-track-future  { flex: 1; background: linear-gradient(to right, rgba(245,158,11,0.3), rgba(239,68,68,0.5)); }
.today-marker {
  position: absolute; top: 0; bottom: 0;
  width: 2px; background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: todayPulse 2s ease-in-out infinite;
}
@keyframes todayPulse { 0%,100% { opacity:1; } 50% { opacity:0.35; } }

.time-slider {
  position: absolute; top: 0; left: 0; right: 0;
  width: 100%; height: 22px; appearance: none; background: transparent; cursor: pointer; z-index: 2;
}
.time-slider::-webkit-slider-thumb {
  appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--blue); border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.3);
  cursor: pointer; transition: transform 0.1s;
}
.time-slider::-webkit-slider-thumb:hover { transform: scale(1.2); }
.time-slider::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--blue); border: 2px solid var(--bg); cursor: pointer;
}
.time-display { text-align: center; font-size: 0.63rem; color: var(--muted); font-variant-numeric: tabular-nums; }

.speed-group { display: flex; align-items: center; gap: 5px; flex-shrink: 0; }
.speed-lbl { font-size: 0.62rem; color: var(--dim); }
.speed-sel {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 5px; color: var(--muted); font-size: 0.7rem; padding: 3px 6px; cursor: pointer;
}

/* === Flood animations === */
.flood-red    { animation: flashRed    0.65s ease-in-out infinite; }
.flood-orange { animation: flashOrange 0.75s ease-in-out infinite; }
.flood-yellow { animation: flashYellow 0.90s ease-in-out infinite; }
.flood-pink   { animation: flashPink   1.10s ease-in-out infinite; }
@keyframes flashRed    { 0%,100%{stroke:#ef4444;stroke-width:3px;stroke-opacity:1;}50%{stroke:#ff0000;stroke-width:12px;stroke-opacity:0.10;} }
@keyframes flashOrange { 0%,100%{stroke:#f97316;stroke-width:3px;stroke-opacity:1;}50%{stroke:#fb923c;stroke-width:11px;stroke-opacity:0.12;} }
@keyframes flashYellow { 0%,100%{stroke:#eab308;stroke-width:3px;stroke-opacity:1;}50%{stroke:#facc15;stroke-width:10px;stroke-opacity:0.14;} }
@keyframes flashPink   { 0%,100%{stroke:#f472b6;stroke-width:3px;stroke-opacity:1;}50%{stroke:#f9a8d4;stroke-width:9px; stroke-opacity:0.16;} }

@keyframes countUp { from { opacity:0; transform:translateY(4px); } to { opacity:1; transform:translateY(0); } }
@keyframes warningFlash {
  0%, 100% { color: #facc15; text-shadow: 0 0 8px #facc15, 0 0 2px #fbbf24; }
  50%       { color: #fef08a; text-shadow: 0 0 18px #facc15, 0 0 6px #fbbf24; }
}
.stat-val.updated { animation: countUp 0.25s ease-out; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* =====================
   Mobile (≤ 768px)
   ===================== */
@media (max-width: 768px) {
  html, body { overflow: auto; height: auto; }

  .app {
    display: flex; flex-direction: column;
    height: auto; min-height: 100vh;
    padding: 6px 6px 82px;
    gap: 6px;
  }

  /* workspace 垂直排列：map（DOM 第一）自然在上，side-panel 在下 */
  .workspace { flex-direction: column; }

  /* 手機重設 order，讓 DOM 順序生效（map 在上，side 在下） */
  .map-section { order: 0; max-width: 100%; height: 62vw; min-height: 240px; max-height: 380px; }
  .side-panel  { order: 1; width: 100%; overflow-y: visible; flex: none; }

  /* Topbar — 加大加顯眼 */
  .brand-sub   { display: none; }
  .brand-title { font-size: 1.05rem; }
  .brand-icon  { font-size: 1.8rem; }
  .topbar {
    padding: 10px 14px;
    border-bottom: 2px solid rgba(14,165,233,0.35);
    background: rgba(10,22,50,0.95);
  }

  /* 情境選擇：2 欄大按鈕，貼近地圖，明顯可點 */
  .scenario-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
    padding: 8px;
  }
  .scenario-desc { display: none; }

  .scenario-tab {
    flex-direction: column; align-items: flex-start;
    gap: 4px; padding: 11px 13px;
    border-radius: var(--r-sm);
    white-space: normal;
  }
  /* 最後一個（第5張）跨兩欄，加大顯示 */
  .scenario-tab:nth-child(5) {
    grid-column: 1 / -1;
    flex-direction: row; align-items: center; justify-content: center;
    gap: 10px; padding: 14px 16px;
  }
  .scenario-tab:nth-child(5) .tab-name,
  .scenario-tab:nth-child(5) .tab-rise {
    animation: warningFlash 1.2s ease-in-out infinite;
  }
  .scenario-tab:nth-child(5) .tab-name { font-size: 0.95rem; }
  .scenario-tab:nth-child(5) .tab-rise { font-size: 0.88rem; }

  .tab-name { font-size: 0.85rem; }
  .tab-rise { font-size: 0.8rem; }

  /* Side panel */
  .chart-box  { height: 200px; flex: none; }
  .cities-box { flex-shrink: 0; }

  /* Sticky control bar — CSS Grid 兩列，位置明確 */
  .control-bar {
    position: fixed; bottom: 0; left: 0; right: 0;
    border-radius: 0;
    border: none; border-top: 1px solid var(--border);
    padding: 8px 12px 12px;
    z-index: 1000;
    background: rgba(2, 11, 24, 0.97);
    /* Grid: row1 = 播放+步長+速度, row2 = 時間軸 */
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    grid-template-rows: auto auto;
    align-items: center;
    gap: 8px 10px;
  }
  .playback-btns { grid-column: 1; grid-row: 1; display: flex; gap: 4px; }
  .gran-group    { grid-column: 2; grid-row: 1; }
  .speed-group   { grid-column: 4; grid-row: 1; }
  .timeline-track { grid-column: 1 / -1; grid-row: 2; }

  .play-btn { width: 50px; height: 50px; font-size: 1.25rem; box-shadow: 0 0 22px rgba(14,165,233,0.45); }
  .ctrl-btn { width: 40px; height: 40px; font-size: 1rem; }

  .timeline-labels span { display: none; }
  .timeline-labels span:first-child,
  .timeline-labels span:last-child,
  .timeline-labels .label-today { display: inline; }
}

@media (max-width: 400px) {
  .stats-grid { gap: 5px; }
  .stat-val   { font-size: 1.2rem; }
}