/* TUM 品牌化重设计:圆角 0、无卡片/阴影、发丝线分隔、左对齐、仪表盘式数字读数 */

* { box-sizing: border-box; }
html, body { height: 100%; }
/* 纵向 flex 骨架,避免 calc 高度脆弱 */
body { display: flex; flex-direction: column; overflow: hidden; }

/* ---- 顶栏:标题左 + TUM logo 右(品牌约定 logo 锁右上) ---- */
.topbar {
  flex: 0 0 auto;
  display: flex; align-items: center; gap: 24px;
  padding: 11px var(--pad);
  border-bottom: 1px solid var(--tum-blue);
}
.topbar .brand { display: flex; flex-direction: column; gap: 2px; }
.topbar .eyebrow { font-size: var(--fs-cap); letter-spacing: .04em; color: var(--tum-gray-50); }
.topbar h1 { font-size: var(--fs-title); font-weight: 700; line-height: 1.1; margin: 0; }
.topbar .logo { height: 30px; width: auto; margin-left: auto; }

/* ---- 工具条:趟切换 segmented tabs ---- */
.toolbar {
  flex: 0 0 auto;
  display: flex; align-items: stretch; gap: 16px;
  padding: 0 var(--pad);
  background: var(--tum-gray-5);
  border-bottom: 1px solid var(--rule);
}
.toolbar .eyebrow {
  align-self: center;
  font-size: var(--fs-cap); letter-spacing: .08em; text-transform: uppercase;
  color: var(--tum-gray-50);
}
.tabs { display: flex; }
.tab {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  padding: 9px 18px 7px; border-bottom: 2px solid transparent;
  display: flex; flex-direction: column; align-items: flex-start; gap: 1px;
  font-family: inherit; color: var(--tum-gray-50);
  transition: color .15s ease, border-color .15s ease;
}
.tab:hover { color: var(--tum-blue-dark); }
.tab.active { color: var(--tum-blue); border-bottom-color: var(--tum-blue); }
.tab .tab-id  { font-size: var(--fs-body); font-weight: 700; font-variant-numeric: tabular-nums; }
.tab .tab-sub { font-size: var(--fs-cap); font-variant-numeric: tabular-nums; opacity: .8; }
.tab:focus-visible { outline: 2px solid var(--tum-blue); outline-offset: -2px; }

/* ---- 主区:地图(主角) + 侧栏 ---- */
.layout {
  flex: 1 1 auto; min-height: 0;
  display: grid; grid-template-columns: 1fr 360px;
}
#map { height: 100%; background: var(--tum-gray-5); }

.sidebar {
  overflow-y: auto; background: var(--tum-white);
  border-left: 1px solid var(--rule);
  padding: var(--pad);
  display: flex; flex-direction: column; gap: 26px;
}

/* ---- 区块:发丝线下划标题,无卡片 ---- */
.block { display: flex; flex-direction: column; gap: 12px; }
.block h2, .block h3 {
  margin: 0;
  font-size: var(--fs-body); font-weight: 700; color: var(--tum-blue);
  padding-bottom: 5px; border-bottom: 1px solid var(--tum-blue);
}
.block canvas { width: 100% !important; }
.chart-note {        /* 图下诚实注记(如 gas 预热说明):安静、不抢图 */
  font-size: var(--fs-cap); color: var(--tum-gray-50);
  margin: 6px 0 0; line-height: 1.35;
}

/* ---- 环境读数:仪表盘式数字(该趟均值+区间),2×2 发丝线网格,无卡片 ---- */
.readout { display: grid; grid-template-columns: 1fr 1fr; }
.readout .card { padding: 10px 4px; border-top: 1px solid var(--rule); }
.readout .card:nth-child(odd)  { padding-right: 14px; }
.readout .card:nth-child(even) { padding-left: 14px; border-left: 1px solid var(--rule); }
.readout .card:nth-child(-n+2) { border-top: 0; }          /* 首行不画上线 */
.readout .val {
  font-size: var(--fs-num); font-weight: 700; line-height: 1;
  color: var(--tum-blue-dark); font-variant-numeric: tabular-nums;
}
.readout .val.empty { color: #b6b6b6; font-weight: 400; }   /* 空读数:诚实地弱化,不冒充有值 */
.readout .card-range {        /* 该趟 min–max 区间(+ gas warmup 后缀);安静、tabular */
  font-size: var(--fs-cap); color: var(--tum-gray-50);
  font-variant-numeric: tabular-nums; margin-top: 3px;
}
.readout .lbl { font-size: var(--fs-cap); color: var(--tum-gray-50); margin-top: 4px; }

/* ---- 数据质量 ---- */
.meta { font-size: var(--fs-cap); }
.meta dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 5px 12px; }
.meta dt { font-weight: 700; color: var(--tum-blue-dark); }
.meta dd { margin: 0; color: #333; font-variant-numeric: tabular-nums; }
.meta .mono { font-family: var(--font-mono); font-size: 10px; }

/* ---- 品牌页脚(TUM footer 约定) ---- */
.brandfoot {
  margin-top: auto; padding-top: 14px; border-top: 1px solid var(--rule);
  font-size: var(--fs-cap); color: var(--tum-gray-50); line-height: 1.45;
}

/* ===== Leaflet 控件/弹窗 TUM 化:圆角 0、去阴影、发丝线 ===== */
.leaflet-control-layers,
.leaflet-bar,
.leaflet-popup-content-wrapper,
.legend {
  border-radius: 0 !important;
  box-shadow: none !important;
  border: 1px solid var(--rule);
}
.leaflet-popup-tip { box-shadow: none !important; }

.leaflet-control-layers { padding: 8px 11px; font-size: var(--fs-cap); color: #222; }
.leaflet-control-layers-list { line-height: 1.75; }
.leaflet-control-layers label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.leaflet-control-layers input { accent-color: var(--tum-blue); }

.leaflet-bar a { border-radius: 0 !important; color: var(--tum-blue-dark); border-bottom: 1px solid var(--rule); }
.leaflet-bar a:last-child { border-bottom: 0; }
.leaflet-bar a:hover { background: var(--tum-gray-5); color: var(--tum-blue); }

.leaflet-popup-content-wrapper { padding: 2px 4px; }
.leaflet-popup-content { font-size: 13px; line-height: 1.5; color: #222; }
.leaflet-popup-content b { color: var(--tum-blue); }

/* ---- 舒适度图例:方形色块刻度(数据编码,绿→红 = ISO 反应等级) ---- */
.legend { padding: 9px 11px; line-height: 1.7; font-size: var(--fs-cap);
  max-width: 252px; background: var(--tum-white); }
.legend b { display: block; margin-bottom: 5px; color: var(--tum-blue); }
.legend i { display: inline-block; width: 13px; height: 13px; margin-right: 7px;
  vertical-align: -2px; border-radius: 0; }
.legend-note { margin-top: 7px; padding-top: 6px; border-top: 1px solid var(--rule);
  font-size: 10px; color: var(--tum-gray-50); line-height: 1.35; }
.legend .grad-bar { height: 11px; margin: 5px 0 3px; border: 1px solid var(--rule); }
.legend .grad-ticks { display: flex; justify-content: space-between;
  font-size: 10px; color: var(--tum-gray-50); }

/* ---- 图例内的配色模式切换:TUM 段控(comfort a_w ↔ ML 路面) ---- */
.legend-toggle { display: flex; flex-wrap: wrap; gap: 1px; margin-bottom: 8px;
  background: var(--rule); border: 1px solid var(--rule); }
.legend-toggle .lt-btn {
  flex: 1 1 46%; appearance: none; border: 0; cursor: pointer;
  background: var(--tum-white); color: var(--tum-gray-50);
  font-family: inherit; font-size: 10px; line-height: 1.2; padding: 4px 6px;
  border-right: 0;
  transition: color .15s ease, background .15s ease;
}
.legend-toggle .lt-btn:last-child { border-right: 0; }
.legend-toggle .lt-btn:hover { color: var(--tum-blue-dark); }
.legend-toggle .lt-btn.active { background: var(--tum-blue); color: var(--tum-white); font-weight: 700; }
.legend-toggle .lt-btn:focus-visible { outline: 2px solid var(--tum-blue); outline-offset: -2px; }

/* ---- 窄屏:侧栏落到地图下方,整页可滚 ---- */
@media (max-width: 860px) {
  body { overflow: auto; }
  .layout { grid-template-columns: 1fr; }
  #map { height: 56vh; min-height: 320px; }
  .sidebar { border-left: 0; border-top: 1px solid var(--rule); }
  .toolbar { overflow-x: auto; }
}