[hidden]{display:none!important}

:root{
  --bg:#f3f6f7;--card:#fff;--text:#13222b;--muted:#68757d;--line:#dde5e8;
  --accent:#216f61;--deep:#173f46;--shadow:0 12px 34px rgba(19,34,43,.08);
  --radius:22px;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",sans-serif}
body{min-height:100vh}
button,input{font:inherit}
.app-shell{max-width:560px;margin:0 auto;padding:calc(env(safe-area-inset-top) + 12px) 14px calc(env(safe-area-inset-bottom) + 28px)}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:5px 2px 14px}
.app-title{font-size:30px;font-weight:760;letter-spacing:-.7px}
.subtle{font-size:14px;color:var(--muted);margin-top:4px}
.header-actions{display:flex;gap:8px}
.round-button{width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);font-size:19px}
.card{background:var(--card);border:1px solid rgba(214,224,228,.9);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.eyebrow{font-size:12px;font-weight:760;text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.light{color:#c9dfdd}
.hero-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:12px;align-items:center;margin-top:7px}
.aqi-value{font-size:72px;line-height:.95;font-weight:780;letter-spacing:-4px}
.aqi-caption{font-size:13px;color:var(--muted);margin-top:7px}
.status-pill{display:inline-block;padding:8px 11px;border-radius:999px;font-size:14px;font-weight:750;background:#e9f3ef;color:#1b5e50}
.trend-text{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.35}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:17px}
.metric-tile{background:#f6f9fa;border-radius:15px;padding:11px}
.metric-tile span{display:block;color:var(--muted);font-size:12px}
.metric-tile strong{display:block;font-size:17px;margin-top:5px}
.summary-text{font-size:16px;line-height:1.45;margin:15px 0 0}
.updated-text{font-size:12px;color:var(--muted);margin-top:11px}
.advisor-card{background:linear-gradient(145deg,#153c44,#28656a);color:#fff;border:none}
.advisor-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:13px 0}
.temp-entry{display:flex;align-items:center;gap:5px}
.temp-entry input{width:82px;padding:10px;border-radius:12px;border:none;font-size:17px}
.advisor-title{font-size:21px;font-weight:760;line-height:1.25;margin:12px 0 8px}
.advisor-detail{font-size:14px;line-height:1.5;color:#d9ebea}
.section-heading{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}
.section-heading h2,.info-card h2{font-size:19px;margin:0;letter-spacing:-.25px}
.section-heading p{font-size:12px;color:var(--muted);margin:5px 0 0}
.map-frame{position:relative}
#map{height:335px;border-radius:17px;background:#e8eef0;overflow:hidden}
.map-loading{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);padding:10px 13px;background:#fff;border-radius:999px;box-shadow:var(--shadow);z-index:600;font-size:13px}
.time-controls{display:flex;gap:7px;overflow-x:auto;padding:11px 0 2px}
.time-chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:var(--muted);white-space:nowrap}
.time-chip.active{background:var(--text);color:#fff;border-color:var(--text)}
.legend{display:flex;justify-content:space-between;gap:5px;font-size:10px;color:var(--muted);margin-top:11px}
.legend i{display:block;height:7px;border-radius:999px;margin-bottom:5px}
.good{background:#62b98c}.moderate{background:#e7ca5b}.elevated{background:#e7924f}.unhealthy{background:#cf5b55}.very-high{background:#7d5b99}
canvas{display:block;width:100%;height:215px}
.confidence-row{display:flex;justify-content:space-between;padding-top:12px;border-top:1px solid var(--line);font-size:13px}
.timeline{display:grid;gap:0}
.timeline-item{display:grid;grid-template-columns:72px 20px 1fr;gap:10px;min-height:64px}
.timeline-time{font-size:13px;color:var(--muted);padding-top:1px}
.timeline-mark{position:relative}
.timeline-mark:before{content:"";position:absolute;left:9px;top:0;bottom:0;width:2px;background:var(--line)}
.timeline-mark:after{content:"";position:absolute;left:4px;top:2px;width:12px;height:12px;border-radius:50%;background:var(--accent);border:3px solid #e8f3f0}
.timeline-item:last-child .timeline-mark:before{bottom:50%}
.timeline-copy strong{display:block;font-size:14px}
.timeline-copy span{display:block;color:var(--muted);font-size:12px;margin-top:4px;line-height:1.35}
.outlook{display:grid;grid-template-columns:repeat(5,minmax(88px,1fr));gap:8px;overflow-x:auto}
.day-card{min-width:88px;padding:12px;background:#f6f9fa;border-radius:15px}
.day-card b,.day-card span{display:block}.day-card b{font-size:13px}.day-card .level{font-size:12px;margin:9px 0 4px}.day-card .max{font-size:20px;font-weight:760}
.info-card p{font-size:13px;line-height:1.5;color:var(--muted)}
.error-banner{background:#fff4e5;color:#714b00;border:1px solid #f2d19b;padding:12px;border-radius:14px;margin-bottom:14px;font-size:13px}
.launch-screen{position:fixed;inset:0;background:var(--bg);z-index:2000;display:flex;flex-direction:column;justify-content:center;align-items:center;transition:opacity .25s ease}
.launch-screen.hidden{opacity:0;pointer-events:none}
.launch-screen img{width:90px;height:90px;border-radius:22px;box-shadow:var(--shadow)}
.launch-screen h1{margin:18px 0 6px}.launch-screen p{margin:0;color:var(--muted);font-size:14px}
.sheet-backdrop{position:fixed;inset:0;background:rgba(12,24,30,.35);z-index:3000;display:flex;align-items:flex-end}
.settings-sheet{width:min(560px,100%);margin:0 auto;background:#fff;border-radius:26px 26px 0 0;padding:10px 18px calc(env(safe-area-inset-bottom) + 24px);box-shadow:0 -15px 40px rgba(0,0,0,.16)}
.sheet-handle{width:42px;height:5px;border-radius:99px;background:#cfd8dc;margin:0 auto 12px}
.sheet-title-row{display:flex;justify-content:space-between;align-items:center}
.sheet-title-row h2{margin:0;font-size:22px}
.text-button{border:none;background:none;color:var(--accent);font-weight:750}
.setting-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:17px 0;border-bottom:1px solid var(--line)}
.setting-row strong,.setting-row span{display:block}.setting-row span{font-size:12px;color:var(--muted);margin-top:4px}
.setting-row input{width:22px;height:22px}
.settings-note{font-size:12px;color:var(--muted);margin-top:16px}
@media (max-width:390px){
  .metric-grid{grid-template-columns:1fr 1fr}.metric-tile:last-child{grid-column:span 2}
  .aqi-value{font-size:64px}.hero-grid{grid-template-columns:1fr 1fr}
}

.round-button:disabled{opacity:.55}
.data-loading .aqi-value,
.data-loading .metric-tile strong,
.data-loading .summary-text{
  color:transparent!important;
  position:relative;
  overflow:hidden;
  border-radius:8px;
  background:#edf2f4;
}
.data-loading .aqi-value{min-width:104px;min-height:68px}
.data-loading .metric-tile strong{min-height:20px}
.data-loading .summary-text{min-height:44px}
.data-loading .aqi-value:after,
.data-loading .metric-tile strong:after,
.data-loading .summary-text:after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.8),transparent);
  transform:translateX(-100%);
  animation:shimmer 1.2s infinite;
}
@keyframes shimmer{to{transform:translateX(100%)}}
.location-note{font-size:12px;color:var(--muted);margin-top:6px}
.map-loading.small{padding:8px 11px;font-size:12px}
.launch-screen{animation:autoHideLaunch .45s ease 1.1s forwards}
@keyframes autoHideLaunch{to{opacity:0;visibility:hidden;pointer-events:none}}