/* ============================================================
   SHENZHEN CBD 3D — glass UI（暗色 / 亮色双主题）
   主题由 <body data-theme="dark|light"> 切换，见 js/theme.js。
   ============================================================ */
:root{
  --bg:#05070c;
  --bg-2:#0a0f18;
  --line:rgba(120,160,220,.14);
  --line-2:rgba(120,160,220,.28);
  --fg:#dce6f5;
  --fg-dim:#7f8ea6;
  --accent:#4ea8ff;
  --accent-2:#7cf3d0;
  --warn:#ffb547;
  --glass:rgba(10,16,26,.72);
  /* 主题相关的杂项色，亮色下整组覆盖 */
  --inset:rgba(0,0,0,.35);          /* 输入框 / 内凹底 */
  --hairline:rgba(0,0,0,.4);        /* 色块描边 */
  --shadow:0 8px 30px rgba(0,0,0,.6);
  --shadow-sm:0 3px 14px rgba(0,0,0,.5);
  --minimap-bg:radial-gradient(circle at 50% 50%,#0d1626,#05070c);
  --gate-bg:radial-gradient(circle at 50% 35%,#0b1626,#03050a 70%);
  --label-bg:rgba(5,9,16,.62);
  --label-fg:#e8f2ff;
  --label-line:rgba(120,160,220,.22);
  --label-shadow:0 1px 3px #000;
  --joy-bg:radial-gradient(circle,rgba(10,16,26,.62),rgba(10,16,26,.28));
  --btn-primary-fg:#031018;
  --kbd-bg:rgba(255,255,255,.04);
  --track:rgba(255,255,255,.08);
  --crosshair:rgba(220,235,255,.75);
  --card-bg:rgba(255,255,255,.02);
  --sw-idle:#1b2430;
  --fg-faint:#54637a;
  --radius:10px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

/* ---------- 亮色主题 ---------- */
body[data-theme="light"]{
  --bg:#eef2f7;
  --bg-2:#ffffff;
  --line:rgba(30,60,100,.16);
  --line-2:rgba(30,60,100,.30);
  --fg:#16222e;
  --fg-dim:#5b6c7e;
  --accent:#1d6fd0;
  --accent-2:#0d8f74;
  --warn:#b3630a;
  --glass:rgba(255,255,255,.80);
  --inset:rgba(20,40,70,.06);
  --hairline:rgba(20,40,70,.22);
  --shadow:0 8px 26px rgba(30,50,80,.18);
  --shadow-sm:0 3px 12px rgba(30,50,80,.16);
  --minimap-bg:radial-gradient(circle at 50% 50%,#ffffff,#dde5ee);
  --gate-bg:radial-gradient(circle at 50% 35%,#f4f8fc,#cdd9e6 70%);
  --label-bg:rgba(255,255,255,.86);
  --label-fg:#14202c;
  --label-line:rgba(30,60,100,.22);
  --label-shadow:0 1px 2px rgba(255,255,255,.9);
  --joy-bg:radial-gradient(circle,rgba(255,255,255,.72),rgba(255,255,255,.34));
  --btn-primary-fg:#ffffff;
  --kbd-bg:rgba(20,40,70,.05);
  --track:rgba(20,40,70,.12);
  --crosshair:rgba(20,40,70,.7);
  --card-bg:rgba(20,40,70,.035);
  --sw-idle:#c3cedb;
  --fg-faint:#7c8b9c;
}

*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font:12px/1.5 var(--mono);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.02em;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
canvas#scene{position:fixed;inset:0;display:block;width:100%;height:100%;touch-action:none}

/* ---------- shared ---------- */
.panel,.topbar,.hud,.card,.tooltip{
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(1.4);
  -webkit-backdrop-filter:blur(14px) saturate(1.4);
}
.muted{color:var(--fg-dim)}
.sep{color:var(--fg-dim);margin:0 2px}

.btn{
  font:inherit;color:var(--fg);cursor:pointer;
  background:linear-gradient(180deg,rgba(78,168,255,.16),rgba(78,168,255,.05));
  border:1px solid var(--line-2);border-radius:7px;
  padding:6px 12px;text-transform:uppercase;letter-spacing:.08em;
  transition:.15s border-color,.15s background,.15s transform;
}
.btn:hover{border-color:var(--accent);background:rgba(78,168,255,.22)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn.ghost{background:transparent;padding:5px 9px}
.btn.primary{background:linear-gradient(180deg,var(--accent),#2b7fd4);border-color:transparent;color:var(--btn-primary-fg);font-weight:700}
.btn.on{border-color:var(--accent-2);background:rgba(124,243,208,.18)}
.mini{
  font:11px/1 var(--mono);color:var(--fg-dim);cursor:pointer;
  background:none;border:1px solid var(--line);border-radius:5px;padding:4px 7px;
}
.mini:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- topbar ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:44px;z-index:30;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 12px;border-width:0 0 1px 0;
}
.brand{display:flex;align-items:center;gap:7px;font-size:12px}
.brand strong{letter-spacing:.16em}
.dot{width:8px;height:8px;border-radius:50%;background:var(--warn);box-shadow:0 0 10px currentColor;transition:.3s}
.dot.ok{background:var(--accent-2)}
.dot.load{background:var(--accent);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.35}}
.topbar-right{display:flex;align-items:center;gap:6px}
.pill{
  display:flex;gap:6px;align-items:center;
  border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-size:11px;
}
.pill .k{color:var(--fg-dim);letter-spacing:.1em}
.pill .v{color:var(--fg)}

/* ---------- panels ---------- */
.panel{
  position:fixed;top:56px;bottom:64px;width:262px;z-index:25;
  display:flex;flex-direction:column;gap:8px;
  padding:8px;border-radius:var(--radius);
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:thin;scrollbar-color:var(--line-2) transparent;
}
.panel::-webkit-scrollbar{width:6px}
.panel::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:3px}
.panel-left{left:10px}
.panel-right{right:10px}
.panel.hidden{display:none}

.card{border-radius:8px;padding:9px;background:var(--card-bg)}
.card-head{
  display:flex;justify-content:space-between;align-items:center;
  font-size:10.5px;letter-spacing:.14em;color:var(--fg-dim);
  text-transform:uppercase;margin-bottom:7px;
  padding-bottom:6px;border-bottom:1px solid var(--line);
}
.tag{
  font-size:10px;padding:2px 6px;border-radius:4px;
  border:1px solid var(--line-2);color:var(--accent);
}
.kv{display:flex;justify-content:space-between;gap:8px;padding:2.5px 0;font-size:11.5px}
.kv span{color:var(--fg-dim)}
.kv b{font-weight:500;text-align:right;word-break:break-all}

.row{display:block;margin:7px 0;font-size:11px;color:var(--fg-dim)}
.row em{color:var(--accent);font-style:normal}
.row input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:3px;margin-top:6px;
  background:var(--line-2);border-radius:2px;outline:none;
}
.row input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:12px;height:12px;border-radius:50%;
  background:var(--accent);cursor:pointer;box-shadow:0 0 8px rgba(78,168,255,.7);
}
.row input[type=range]::-moz-range-thumb{
  width:12px;height:12px;border:0;border-radius:50%;background:var(--accent);cursor:pointer;
}
.row.switch{display:flex;align-items:center;gap:7px;cursor:pointer;color:var(--fg)}
.row.switch input{accent-color:var(--accent);width:13px;height:13px;cursor:pointer}

/* ---------- minimap ---------- */
.minimap-wrap{
  position:relative;width:100%;aspect-ratio:1;
  border:1px solid var(--line);border-radius:6px;overflow:hidden;
  background:var(--minimap-bg);
}
#minimap{width:100%;height:100%;display:block}
.legend{display:flex;flex-wrap:wrap;gap:4px 9px;margin:7px 0;font-size:10px;color:var(--fg-dim);align-items:center}
.sw{width:9px;height:9px;border-radius:2px;display:inline-block;margin-right:2px}
.sw-ready{background:#2f7fd6}
.sw-load{background:var(--warn)}
.sw-idle{background:var(--sw-idle);border:1px solid var(--line-2)}
.sw-view{background:transparent;border:1px solid var(--accent-2)}

/* ---------- search / landmarks ---------- */
.search{display:flex;gap:5px}
.search input{
  flex:1;min-width:0;font:inherit;color:var(--fg);
  background:var(--inset);border:1px solid var(--line-2);
  border-radius:6px;padding:6px 8px;outline:none;
}
.search input:focus{border-color:var(--accent)}
.landmarks{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:3px}
.landmarks li{
  display:flex;justify-content:space-between;align-items:center;gap:6px;
  padding:5px 7px;border:1px solid transparent;border-radius:6px;
  cursor:pointer;font-size:11.5px;transition:.12s;
}
.landmarks li:hover{background:rgba(78,168,255,.12);border-color:var(--line-2)}
.landmarks li i{font-style:normal;color:var(--fg-dim);font-size:10px}

.btn-grid{display:grid;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:7px}
.btn-grid.tri{grid-template-columns:repeat(3,1fr)}
.btn-grid .btn{padding:6px 4px;font-size:10.5px}

/* ---------- 配色图例 ---------- */
.colorkey{display:flex;flex-direction:column;gap:3px;font-size:10.5px;color:var(--fg-dim)}
.colorkey .ck-row{display:flex;align-items:center;gap:6px}
.colorkey .ck-sw{width:11px;height:11px;border-radius:3px;flex:none;border:1px solid var(--hairline)}
.colorkey .ck-ramp{
  height:9px;border-radius:3px;flex:1;
  border:1px solid var(--hairline);
}
.colorkey .ck-scale{display:flex;justify-content:space-between;font-size:9.5px;letter-spacing:0}

/* ---------- debug ---------- */
.collapsible.closed .card-body{display:none}
.card-head{cursor:default}
#debugHead{cursor:pointer}
#debugLog{
  margin:0 0 7px;font:10.5px/1.45 var(--mono);color:var(--fg-dim);
  max-height:150px;overflow:auto;white-space:pre-wrap;word-break:break-all;
}

/* ---------- hud ---------- */
.hud{
  position:fixed;bottom:0;left:0;right:0;z-index:28;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:8px 12px;border-width:1px 0 0 0;
  font-size:10.5px;color:var(--fg-dim);flex-wrap:wrap;
}
.keys{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
kbd{
  font:10px/1 var(--mono);color:var(--fg);
  border:1px solid var(--line-2);border-bottom-width:2px;border-radius:4px;
  padding:3px 5px;background:var(--kbd-bg);
}
.keys span{margin-right:8px}

/* ---------- tooltip / crosshair ---------- */
.tooltip{
  position:fixed;z-index:40;pointer-events:none;
  padding:7px 10px;border-radius:7px;max-width:230px;
  font-size:11px;line-height:1.5;box-shadow:var(--shadow);
}
.tooltip b{color:var(--accent-2);display:block;margin-bottom:2px;font-size:12px}
.crosshair{
  position:fixed;left:50%;top:50%;width:14px;height:14px;z-index:35;
  transform:translate(-50%,-50%);pointer-events:none;
}
.crosshair::before,.crosshair::after{
  content:"";position:absolute;background:var(--crosshair);
}
.crosshair::before{left:50%;top:0;width:1px;height:100%;transform:translateX(-50%)}
.crosshair::after{top:50%;left:0;height:1px;width:100%;transform:translateY(-50%)}

/* ---------- labels (CSS overlay) ---------- */
.label-layer{position:fixed;inset:0;z-index:20;pointer-events:none;overflow:hidden}
.map-label{
  position:absolute;transform:translate(-50%,-100%);
  font-size:10.5px;line-height:1;white-space:nowrap;
  color:var(--label-fg);padding:3px 6px;border-radius:5px;
  background:var(--label-bg);border:1px solid var(--label-line);
  text-shadow:var(--label-shadow);transition:opacity .2s;
}
.map-label.station{color:var(--accent-2);border-color:rgba(124,243,208,.3)}
.map-label.place{color:var(--warn);border-color:rgba(255,181,71,.3);letter-spacing:.1em}

/* ---------- gate ---------- */
.gate{
  position:fixed;inset:0;z-index:60;display:grid;place-items:center;
  background:var(--gate-bg);
  transition:opacity .6s;
}
.gate.gone{opacity:0;pointer-events:none}
.gate-inner{text-align:center;max-width:440px;padding:24px}
.gate-title{font-size:26px;letter-spacing:.3em;font-weight:700}
.gate-sub{color:var(--fg-dim);margin:6px 0 22px;letter-spacing:.2em}
.bar{height:3px;background:var(--track);border-radius:2px;overflow:hidden}
.bar i{
  display:block;height:100%;width:0%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transition:width .25s;
}
.gate-state{margin:12px 0 20px;color:var(--fg-dim);font-size:11px;min-height:16px}
.gate-tip{margin-top:18px;font-size:10.5px;color:var(--fg-faint);line-height:1.7}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:70;display:grid;place-items:center;background:rgba(2,4,8,.72)}
.modal-box{
  max-width:460px;padding:20px;border-radius:12px;
  background:var(--bg-2);border:1px solid var(--line-2);
}
.modal-box h3{margin:0 0 12px;font-size:14px;letter-spacing:.1em}
.modal-box ul{margin:0 0 16px;padding-left:18px;color:var(--fg-dim);line-height:1.9;font-size:11.5px}
.modal-box b{color:var(--fg)}

/* ---------- 帮助文案按设备切换 ---------- */
.help-mobile{display:none}
body.is-mobile .help-desktop{display:none}
body.is-mobile .help-mobile{display:block}

/* ================================================================
   移动端 / 触屏
   ================================================================ */

/* 抽屉标签栏（仅移动端注入） */
.drawer-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:32;
  display:flex;gap:6px;padding:6px 8px;
  padding-bottom:calc(6px + env(safe-area-inset-bottom));
  background:var(--glass);border-top:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.dtab{
  flex:1;font:11px/1 var(--mono);color:var(--fg-dim);
  background:var(--kbd-bg);border:1px solid var(--line);
  border-radius:7px;padding:9px 6px;cursor:pointer;
}
.dtab.on{color:var(--accent);border-color:var(--accent);background:rgba(78,168,255,.14)}

/* 抽屉化的面板。
   宽度用 min(calc(100vw-16px),460px) 显式算出来，再靠 translateX(-50%) 居中：
   position:fixed 同时设 left/right 时 max-width + margin:auto 不生效。 */
.panel.drawer{
  position:fixed;left:50%;right:auto;
  width:min(calc(100vw - 16px),460px);
  transform:translateX(-50%);
  top:auto;bottom:58px;bottom:calc(58px + env(safe-area-inset-bottom));
  max-height:52vh;z-index:33;
  transition:transform .25s ease,opacity .2s;
}
.panel.drawer.collapsed{
  transform:translateX(-50%) translateY(130%);opacity:0;pointer-events:none;
}

/* 虚拟摇杆 + 动作按钮 */
.mobile-ui{position:fixed;inset:0;z-index:31;pointer-events:none}
.mobile-ui > *{pointer-events:auto}
.mstick{
  position:absolute;left:20px;
  bottom:calc(84px + env(safe-area-inset-bottom));
  width:124px;height:124px;border-radius:50%;
  border:1px solid var(--line-2);
  background:var(--joy-bg);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  touch-action:none;transition:border-color .15s;
}
.mstick.active{border-color:var(--accent)}
.mstick-knob{
  position:absolute;left:50%;top:50%;width:46px;height:46px;
  transform:translate(-50%,-50%);border-radius:50%;
  background:linear-gradient(180deg,rgba(78,168,255,.9),rgba(43,127,212,.75));
  box-shadow:var(--shadow-sm);
}
.mbtns{
  position:absolute;right:18px;
  bottom:calc(88px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:10px;align-items:flex-end;
}
.mbtn{
  font:11px/1 var(--mono);color:var(--fg);
  background:var(--glass);border:1px solid var(--line-2);
  border-radius:50%;width:66px;height:66px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;
}
.mbtn.down{border-color:var(--accent-2);background:rgba(124,243,208,.22)}
.mbtn.sm{
  width:auto;height:auto;border-radius:7px;padding:8px 11px;font-size:11px;
}
.mmode{
  position:absolute;right:18px;top:56px;
  display:flex;flex-direction:column;gap:6px;
}
.mmode .mbtn.on{color:var(--accent);border-color:var(--accent);background:rgba(78,168,255,.16)}
/* 环绕模式没有跳跃/加速的语义，隐藏以免误触 */
.mobile-ui.orbit .mbtns{display:none}
.mobile-ui.orbit .mstick{opacity:.55}

/* 移动端整体布局微调 */
body.is-mobile .hud{display:none}
body.is-mobile .crosshair{display:none}
body.is-mobile .topbar{height:40px;padding:0 8px}
body.is-mobile .brand strong{letter-spacing:.1em;font-size:11px}
body.is-mobile .brand .muted,body.is-mobile .brand .sep{display:none}
body.is-mobile .topbar-right .pill{padding:2px 7px;font-size:10px}
body.is-mobile .minimap-wrap{max-width:200px;margin:0 auto}
body.is-mobile .gate-title{font-size:20px;letter-spacing:.18em}
body.is-mobile .modal-box{margin:12px;max-height:80vh;overflow-y:auto}
body.is-mobile .map-label{font-size:9.5px;padding:2px 4px}
/* 触屏上把可点区域放大到 44px 起，符合可达性建议 */
body.is-mobile .landmarks li{padding:10px 8px;font-size:12px}
body.is-mobile .btn{padding:9px 12px}
body.is-mobile .mini{padding:7px 9px}
body.is-mobile .row input[type=range]{height:5px}
body.is-mobile .row input[type=range]::-webkit-slider-thumb{width:20px;height:20px}
body.is-mobile .row input[type=range]::-moz-range-thumb{width:20px;height:20px}
body.is-mobile .row.switch input{width:18px;height:18px}
body.is-mobile .search input{padding:9px 10px;font-size:12px}

/* 横屏手机：面板改成侧边窄栏，避免吃掉垂直空间 */
@media (max-width:940px) and (orientation:landscape){
  body.is-mobile .panel.drawer{
    left:8px;right:auto;transform:none;
    width:250px;top:46px;bottom:8px;max-height:none;
  }
  body.is-mobile .panel.drawer.panel-right{left:auto;right:8px}
  body.is-mobile .panel.drawer.collapsed{transform:scale(.96);opacity:0}
  .drawer-bar{left:auto;right:8px;bottom:8px;width:auto;border-radius:8px;border:1px solid var(--line)}
  .mstick{bottom:20px;width:104px;height:104px}
  .mbtns{bottom:24px;right:96px;flex-direction:row}
  .mbtn{width:58px;height:58px}
}

/* ---------- 桌面端窄屏（非触屏）---------- */
@media (max-width:1080px){
  .panel{width:228px}
}
@media (max-width:820px){
  body:not(.is-mobile) .panel{
    position:fixed;top:auto;bottom:auto;left:8px;right:8px;width:auto;
    max-height:38vh;
  }
  body:not(.is-mobile) .panel-left{top:52px}
  body:not(.is-mobile) .panel-right{top:auto;bottom:78px}
  body:not(.is-mobile) .keys{display:none}
  body:not(.is-mobile) .hud{justify-content:center}
}

/* 尊重系统的减少动效偏好 */
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

