/* ==========================================================================
   逐时降雨可视化  —  层级：全屏 3D 场景 / 坐标轴标签 / 降雨编辑面板 / 悬浮数值
   场景铺满整个视口，不保留任何边距。
   ========================================================================== */

:root{
  --bg:#000000;
  --ink:#e9eef7;
  --ink-dim:#8e9cad;
  --ink-faint:#5d6875;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --panel:rgba(8,11,16,.62);
  --cyan:#8fd8ff;
  --font-ui:"Segoe UI Variable Text","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei UI",system-ui,-apple-system,sans-serif;
  --font-num:"JetBrains Mono","Cascadia Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-ui);font-size:14px;line-height:1.5;
  overflow:hidden;-webkit-font-smoothing:antialiased;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit;color:inherit}

#errbar{
  position:absolute;left:0;right:0;top:0;z-index:99;
  padding:6px 12px;font-family:var(--font-num);font-size:12px;line-height:1.5;
  color:#ffd9e2;background:rgba(122,12,42,.88);
  border-bottom:1px solid rgba(255,120,160,.45);
}
#stage{position:fixed;inset:0;overflow:hidden}

/* ---------------------------------------------- 全屏 3D 场景与叠加层 */
/* canvas 是替换元素：width:auto 会退回固有尺寸 300x150，
   因此必须由外层容器负责铺满定位，canvas 自身用 100% 填满。 */
.board{
  position:absolute;inset:0;
  background:#000000;
  overflow:hidden;
}
#gl{
  position:absolute;inset:0;width:100%;height:100%;display:block;
}
.vignette{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(130% 90% at 50% 8%,transparent 46%,rgba(0,0,0,.42) 100%),
    linear-gradient(180deg,rgba(0,0,0,.30) 0,rgba(0,0,0,0) 10%,rgba(0,0,0,0) 84%,rgba(0,0,0,.18) 100%);
  mix-blend-mode:multiply;
}
.axis-layer{position:absolute;inset:0;pointer-events:none;z-index:5}

/* ----------------------------------------------- 3D 坐标轴投影标签 */
.axis-label{
  position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:13.5px;line-height:1;color:#ffffff;
  white-space:nowrap;text-shadow:0 1px 6px rgba(0,0,0,.95);
  transition:opacity .25s ease;
}
.axis-label.axis-title{
  font-family:var(--font-ui);font-size:22px;font-weight:700;
  color:#ffffff;letter-spacing:.14em;
  text-shadow:0 2px 10px rgba(0,0,0,.95);
}
.axis-label.axis-sub{
  font-family:var(--font-ui);font-size:12px;color:rgba(255,255,255,.85);letter-spacing:.04em;
}
.axis-label.axis-hour{font-size:12.5px;color:rgba(255,255,255,.92)}

/* ------------------------------------------------------------ 编辑面板 */
.panel{
  position:absolute;left:16px;top:16px;width:420px;max-width:calc(100% - 32px);
  bottom:18px;
  display:flex;flex-direction:column;
  background:var(--panel);backdrop-filter:blur(20px) saturate(120%);
  border:1px solid var(--line);border-radius:14px;
  box-shadow:0 24px 60px rgba(0,0,0,.55);
  z-index:8;overflow:hidden;
  transition:opacity .22s ease,transform .22s cubic-bezier(.4,0,.2,1);
}
.panel[hidden]{display:none}
.panel.closing{opacity:0;transform:translateX(-18px) scale(.985)}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px 8px;
}
.panel-head h1{margin:0;font-size:15px;font-weight:600;letter-spacing:.02em}
.panel-desc{
  margin:0;padding:0 16px 12px;font-size:12px;line-height:1.65;color:var(--ink-dim);
  border-bottom:1px solid var(--line);
}
.chart-block{padding:12px 16px 4px;flex:none}
.chart-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.chart-title{font-size:12.5px;color:var(--ink-dim);letter-spacing:.04em}
.chart-badge{
  font-size:11px;color:var(--cyan);
  background:rgba(143,216,255,.10);border:1px solid rgba(143,216,255,.24);
  padding:1px 8px;border-radius:999px;transition:opacity .2s ease;
}
.chart-badge[hidden]{display:none}
.chart-host{height:186px;margin:0 -4px;touch-action:none}
.chart-host svg{display:block;width:100%;height:100%;overflow:visible}
.hint{margin:6px 0 0;font-size:11px;line-height:1.6;color:var(--ink-faint)}

.inputs-block{
  padding:12px 16px 4px;border-top:1px solid var(--line);
  flex:1 1 auto;min-height:120px;display:flex;flex-direction:column;
}
.inputs-head{
  font-size:12.5px;color:var(--ink-dim);margin-bottom:8px;
  display:flex;align-items:center;gap:10px;
}
.inputs-head em{font-style:normal;color:var(--ink-faint);font-size:11.5px}
.inputs-toggle{
  margin-left:auto;flex:none;
  font:inherit;font-size:11.5px;color:rgba(255,255,255,.72);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:6px;padding:3px 10px;cursor:pointer;
  transition:background .18s ease,color .18s ease;
}
.inputs-toggle:hover{background:rgba(255,255,255,.13);color:#fff}
.inputs-block.is-collapsed .inputs-grid{display:none}

/* 按城市载入真实天气（需要 http 环境，file:// 下浏览器禁止 fetch） */
.weather-block{
  margin-bottom:16px;padding:12px;
  border:1px solid rgba(255,255,255,.10);border-radius:10px;
  background:rgba(255,255,255,.03);
}
.weather-head{display:flex;align-items:baseline;gap:10px;font-size:12.5px;color:var(--ink-dim)}
.weather-hint{margin-left:auto;font-size:11px;color:var(--ink-faint);text-align:right}
.weather-hint.is-warn{color:#f0a09c}
.weather-search{display:flex;margin-top:9px;gap:8px}
.weather-search input{
  flex:1;min-width:0;height:34px;padding:0 10px;
  border:1px solid rgba(255,255,255,.14);border-radius:8px;
  background:rgba(255,255,255,.05);color:#fff;font:inherit;font-size:12.5px;outline:none;
}
.weather-search input:focus{border-color:rgba(255,255,255,.34)}
.weather-search input:disabled{opacity:.45;cursor:not-allowed}
.weather-search .btn{height:34px;padding:0 14px;font-size:12.5px}
.weather-results{display:flex;flex-direction:column;margin-top:8px;gap:5px}
.weather-results:empty{margin-top:0}
.city-item{
  display:flex;align-items:baseline;gap:8px;width:100%;
  padding:7px 10px;border:1px solid rgba(255,255,255,.10);border-radius:7px;
  background:rgba(255,255,255,.035);color:rgba(255,255,255,.86);
  font:inherit;font-size:12.5px;text-align:left;cursor:pointer;
  transition:background .16s ease,border-color .16s ease;
}
.city-item:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.26)}
.city-item i{font-style:normal;font-size:11px;color:var(--ink-faint)}
.city-tag{margin-left:auto;font-style:normal;font-size:11px;color:rgba(200,214,232,.62);white-space:nowrap}
.inputs-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:6px 10px;
  overflow:auto;padding-right:6px;flex:1 1 auto;
}
.inputs-grid::-webkit-scrollbar{width:6px}
.inputs-grid::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:99px}
.field{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ink-faint)}
.field label{font-family:var(--font-num);font-size:11px;color:var(--ink-dim);cursor:pointer}
.field input{
  width:100%;min-width:0;padding:3px 6px;text-align:right;
  font-family:var(--font-num);font-size:12px;
  background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.07);
  border-radius:6px;transition:border-color .15s,background .15s;
}
.field input:focus{outline:none;border-color:rgba(143,216,255,.55);background:rgba(143,216,255,.08)}
.field .unit{flex:none;font-size:10.5px;color:var(--ink-faint)}
.field.active label,.field.active .unit{color:var(--cyan)}

.panel-actions{
  display:flex;gap:10px;padding:12px 16px 14px;
  border-top:1px solid var(--line);background:rgba(0,0,0,.18);
}
.btn{
  flex:1;padding:8px 12px;border-radius:9px;font-size:13px;
  border:1px solid var(--line-strong);transition:background .16s,border-color .16s,transform .12s;
}
.btn:active{transform:translateY(1px)}
.btn.ghost{color:var(--ink-dim)}
.btn.ghost:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.btn.primary{background:#f2f6fb;color:#0a0d12;border-color:#f2f6fb;font-weight:600}
.btn.primary:hover{background:#fff}

.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:8px;color:var(--ink);
  transition:background .15s,color .15s;
}
.icon-btn:hover{background:rgba(255,255,255,.08)}

.panel-reopen{
  position:absolute;right:18px;top:18px;z-index:8;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:13px;color:var(--ink);
  background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(14px);
}
.panel-reopen::before{
  content:"";width:9px;height:9px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(143,216,255,.8);
}
.panel-reopen[hidden]{display:none}
.panel-reopen:hover{border-color:var(--line-strong);background:rgba(20,26,36,.72)}

/* 折线图 hover 气泡（由 chart.js 注入） */
.chart-tip{
  position:absolute;top:0;left:0;transform:translate(-50%,-118%);
  padding:3px 9px;border-radius:7px;white-space:nowrap;
  font-family:var(--font-num);font-size:11px;color:#0a0d12;background:#eaf3ff;
  box-shadow:0 8px 22px rgba(0,0,0,.5);pointer-events:none;z-index:9;
}

/* ---------------------------------------------------------- 悬浮数值 */
.probe{
  /* 左边缘定位：数值从个位变十位时，只有右侧的单位右移，竖条与时间不动 */
  position:absolute;left:82%;top:12%;z-index:7;
  display:flex;align-items:stretch;gap:12px;
  pointer-events:none;transition:opacity .25s ease;
}
.probe-stem{
  flex:none;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(255,255,255,.22));
}
.probe-body{display:flex;flex-direction:column;gap:6px}
/* 元信息行：城市与时间并排，作为同一层级的信息 */
.probe-meta{display:flex;align-items:center;gap:12px;line-height:1}
.probe-city{
  display:flex;align-items:center;gap:6px;
  font-family:var(--font-ui);font-size:15px;
  color:rgba(255,255,255,.94);
}
.probe-city[hidden]{display:none}
.probe-city__icon{width:16px;height:16px;flex:none;color:rgba(143,216,255,.95)}
.probe-time{
  font-family:var(--font-num);font-size:15px;line-height:1;
  color:rgba(255,255,255,.92);letter-spacing:.06em;
}
.probe-value{display:flex;align-items:baseline;gap:9px}
.probe-value b{
  font-family:var(--font-num);font-weight:300;font-size:38px;line-height:1;
  color:#fff;letter-spacing:-.01em;
}
.probe-value i{
  font-style:normal;font-size:13px;color:rgba(255,255,255,.55);letter-spacing:.02em;
  white-space:nowrap;
}

/* ------------------------------------------------------------ 响应式 */
@media (max-width:1180px){
  .panel{width:380px}
}
/* 注意：.probe 用的是 left 定位，这里必须同步改 left。
   若只写 right，两个属性会一起生效把元素拉伸成窄条，单位文字会被挤成竖排。 */
@media (max-width:900px){
  .panel{width:340px}
  .probe{left:74%;top:16%}
}
@media (max-width:720px){
  .panel{left:10px;right:10px;top:10px;bottom:10px;width:auto}
  .panel-reopen{right:12px;top:12px;padding:8px 13px;font-size:12.5px}
  .probe{left:68%;top:17%}
  .chart-host{height:150px}
}