@layer reset,theme,base,layout,components,utilities;@layer reset{*,*:before,*:after{box-sizing:border-box;margin:0}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}a{color:inherit;text-decoration:none}svg{display:block}img{max-inline-size:100%;block-size:auto}}@layer theme{:root{color-scheme:dark;--bg: light-dark(#f4f4f5, #18181b);--surface: light-dark(#ffffff, #27272a);--border: light-dark(#e4e4e7, #3f3f46);--text: light-dark(#18181b, #f4f4f5);--muted: light-dark(#71717a, #a1a1aa);--accent: light-dark(#2563eb, #60a5fa);--poll: light-dark(#64748b, #94a3b8);--good: light-dark(#22c55e, #4ade80);--mod: light-dark(#eab308, #facc15);--usg: light-dark(#f97316, #fb923c);--unh: light-dark(#ef4444, #f87171);--vuh: light-dark(#a855f7, #c084fc);--haz: light-dark(#9f1239, #f43f5e);--weather-allergy-calendar-background: light-dark( rgba(206, 224, 252, 1), rgba(89, 79, 144, 1) );--radius: 8px;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}html.light-theme{color-scheme:light}}@layer base{html{scrollbar-gutter:stable;-webkit-text-size-adjust:100%}body{font:14px/1.5 var(--font-sans);background:var(--bg);color:var(--text);min-block-size:100vh;min-block-size:100dvh;display:flex;flex-direction:column;transition:background-color .2s ease,color .2s ease}:is(h1,h2,h3,h4){text-wrap:balance}p{text-wrap:pretty}:is(.chart-range,.hint-row,.hint-date,.wx,.aqi,.legend-range){font-variant-numeric:tabular-nums}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}}@layer layout{.container{max-inline-size:680px;margin-inline:auto;padding-inline:16px;inline-size:100%}main{flex:1;padding-block:24px 40px}}@layer utilities{.muted{color:var(--muted)}.small{font-size:12px}.sr-only{position:absolute;inline-size:1px;block-size:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}}@layer components{.site-header{position:sticky;inset-block-start:0;z-index:50;background:var(--surface);border-block-end:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;block-size:56px;gap:16px}.logo{display:flex;align-items:center;gap:8px;font-weight:600}.logo-icon{inline-size:28px;block-size:28px;color:var(--good);flex-shrink:0}.logo-text{font-size:15px;letter-spacing:-.01em}.header-actions{display:flex;align-items:center;gap:8px}.nav{display:flex;gap:8px}.nav-link{padding:8px 12px;border-radius:8px;font-size:13px;color:var(--muted);transition:background-color .15s ease,color .15s ease;&:hover{background:color-mix(in srgb,var(--text) 6%,transparent);color:var(--text)}&.active{color:var(--text);background:color-mix(in srgb,var(--text) 8%,transparent);font-weight:500}}.burger{display:none;inline-size:40px;block-size:40px;flex-direction:column;justify-content:center;align-items:center;gap:4px;border-radius:8px;flex-shrink:0;span{display:block;inline-size:20px;block-size:2px;background:var(--text);border-radius:2px;transition:translate .2s ease,rotate .2s ease,opacity .2s ease}&.open span:nth-child(1){translate:0 6px;rotate:45deg}&.open span:nth-child(2){opacity:0}&.open span:nth-child(3){translate:0 -6px;rotate:-45deg}}@media(width<=720px){.burger{display:flex}.nav{position:absolute;inset-block-start:56px;inset-inline:0;flex-direction:column;gap:4px;background:var(--surface);border-block-end:1px solid var(--border);padding:8px 16px 16px;display:none;&.open{display:flex}}.nav-link{padding:12px;border-radius:8px}}.theme-toggle{display:flex;align-items:center;justify-content:center;inline-size:40px;block-size:40px;border-radius:8px;border:1px solid var(--border);color:var(--text);transition:background-color .2s ease;flex-shrink:0;&:hover{background:color-mix(in srgb,var(--text) 6%,transparent)}svg{inline-size:20px;block-size:20px}.icon-sun{display:none}:where(html.light-theme) &{.icon-sun{display:block}.icon-moon{display:none}}}.head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;margin-block:16px;.update-info{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);svg{inline-size:16px;block-size:16px;stroke:currentColor;fill:none;stroke-width:2;flex-shrink:0}&.is-stale{color:var(--unh)}&.is-stale svg{opacity:.75}}}.head-link{transition:border-color .15s ease,background-color .15s ease;&:hover{border-color:color-mix(in srgb,var(--text) 25%,var(--border));background:color-mix(in srgb,var(--text) 3%,var(--surface));.back-link{color:var(--text)}}&:active{opacity:.85}}.back-link{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--muted);transition:color .15s ease;svg{inline-size:16px;block-size:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}}.page{padding-block-start:8px}.page-title{font-size:clamp(20px,4vw,24px);font-weight:600;margin-block-end:8px;letter-spacing:-.01em}.page-lead{color:var(--muted);font-size:15px;margin-block-end:24px;line-height:1.6;a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;&:hover{text-decoration:none}}}.block{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-block-start:16px;h3{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-block-end:8px;text-align:center}p+p{margin-block-start:8px}a{color:var(--accent);&:hover{text-decoration:underline}}}.sources-list{list-style:none;padding-inline-start:0;li{padding-block:8px;border-block-end:1px solid var(--border)}li:first-child{padding-block-start:0}li:last-child{border-block-end:none;padding-block-end:0}}.cat-0{--c: var(--good)}.cat-1{--c: var(--mod)}.cat-2{--c: var(--usg)}.cat-3{--c: var(--unh)}.cat-4{--c: var(--vuh)}.cat-5{--c: var(--haz)}#stations{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr))}.card{container-type:inline-size;position:relative;overflow:hidden;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px;color:inherit;text-decoration:none;transition:border-color .15s ease;&:hover{border-color:color-mix(in srgb,var(--text) 20%,var(--border))}header{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-block-end:8px}h3{font-size:15px;font-weight:600;line-height:1.3;color:var(--text);margin:0;min-inline-size:0}}.card>*{position:relative;z-index:1}.card-arrow{inline-size:16px;block-size:16px;color:var(--muted);flex-shrink:0;transition:color .15s ease,translate .15s ease}.card:hover .card-arrow{color:var(--text);translate:2px 0}.aqirow{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}.aqirow-main{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;flex-shrink:0}.aqi{font-size:60px;font-weight:800;line-height:1;color:var(--c);font-variant-numeric:tabular-nums;letter-spacing:-.04em;flex-shrink:0}.aqi-meta{display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding-block-end:4px;min-inline-size:0}.level-label{display:inline-flex;align-items:center;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--c);background:color-mix(in srgb,var(--c) 12%,transparent);border:1px solid color-mix(in srgb,var(--c) 25%,transparent);padding:4px 12px;border-radius:8px;line-height:1.2;white-space:nowrap}.aqi-unit{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-block-start:2px}.aqi-range{font-size:11px;letter-spacing:.02em;color:var(--muted);font-variant-numeric:tabular-nums;line-height:1.2;margin-block-start:2px}.sparkline{position:absolute;inset:0;inline-size:100%;block-size:100%;opacity:.1;pointer-events:none;z-index:0}.aqi-bar-wrap{position:relative;inline-size:100%;margin-block:8px 4px}.aqi-segments{display:flex;align-items:center;block-size:16px;background:transparent}.seg{flex:1;block-size:8px;background:var(--c);opacity:.35;transition:transform .3s ease,opacity .3s ease}.seg:first-child{border-start-start-radius:999px;border-end-start-radius:999px}.seg:last-child{border-start-end-radius:999px;border-end-end-radius:999px}.seg.active{opacity:1;transform:scaleY(1.5);filter:saturate(1.2) brightness(1.05);position:relative;z-index:1;border-radius:999px}.aqi-marker{position:absolute;inset-block-start:8px;transform:translate(-50%,-50%);z-index:2;pointer-events:none;transition:left .4s cubic-bezier(.25,.8,.25,1)}.aqi-marker__tip{inline-size:20px;block-size:20px;border-radius:999px;background:var(--surface);border:4px solid var(--c);box-shadow:0 1px 3px #0003;box-sizing:border-box}.aqi-scale{display:flex;margin-block-start:4px;font-size:10px;font-variant-numeric:tabular-nums;color:var(--muted)}.aqi-scale span{flex:1;text-align:right}.wx{display:flex;align-items:center;justify-content:space-between;gap:8px 16px;margin-block-start:8px;font-size:12px;color:var(--muted);flex-wrap:wrap}.wx-data{display:flex;gap:12px 16px;flex-wrap:wrap}.wx span{display:inline-flex;align-items:center;gap:4px}.wx svg{inline-size:16px;block-size:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;transform-origin:center}.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 20px;border-radius:var(--radius);font-size:13px;font-weight:600;border:none;transition:opacity .15s ease;&:hover{opacity:.85}}.heatmap-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:var(--border) transparent;&::-webkit-scrollbar{height:4px}&::-webkit-scrollbar-track{background:transparent}&::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}}.heatmap-grid{display:grid;grid-template-columns:minmax(36px,auto) repeat(12,minmax(0,1fr));gap:4px;inline-size:100%;padding-block-end:4px}.hm-cell{display:flex;align-items:center;justify-content:center;aspect-ratio:1 / 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var(--accent);outline-offset:2px}}}#chart-container{position:relative;user-select:none}.card-summary{margin-block-end:16px}.chart-hint{padding-block-start:8px;border-block-start:1px solid var(--border);font-size:13px;line-height:1.5;color:var(--muted)}.hint-date{font-size:13px;font-weight:600;color:var(--text);margin-block-end:8px}.hint-row{display:flex;align-items:center;gap:8px;margin-block-end:4px;&:last-child{margin-block-end:0}}.legend-item{border-block-end:1px solid var(--border);&:last-child{border-block-end:0}}.legend-summary{display:flex;align-items:center;gap:12px;padding-block:12px;cursor:pointer;list-style:none;&::-webkit-details-marker{display:none}}.legend-dot{inline-size:16px;block-size:16px;border-radius:4px;flex-shrink:0}.bg-good{background:var(--good)}.bg-mod{background:var(--mod)}.bg-usg{background:var(--usg)}.bg-unh{background:var(--unh)}.bg-vuh{background:var(--vuh)}.bg-haz{background:var(--haz)}.bg-poll{background:var(--poll)}.legend-info{flex:1;display:flex;flex-direction:column;gap:4px;min-inline-size:0}.legend-label{font-size:15px;font-weight:600}.legend-range{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.legend-chevron{inline-size:16px;block-size:16px;stroke:var(--muted);stroke-width:2;fill:none;transition:rotate .2s ease;flex-shrink:0}details[open] .legend-chevron{rotate:90deg}.legend-content{display:grid;grid-template-rows:0fr;transition:grid-template-rows .25s ease-out;>div{overflow:hidden}}details[open] .legend-content{grid-template-rows:1fr}.legend-text{padding-block:0 16px;padding-inline:24px 0;font-size:13px;line-height:1.6;color:var(--muted)}.poll-more--all-clear{margin-block-start:0;border-block-start:1px solid var(--border)}.poll-more{margin-block-start:8px}.poll-more__summary{display:flex;align-items:center;justify-content:center;gap:4px;padding-block:12px;cursor:pointer;list-style:none;font-size:12px;color:var(--muted);text-align:center;transition:color .15s ease}.poll-more__summary::-webkit-details-marker{display:none}.poll-more__summary:hover{color:var(--text)}.site-footer{margin-block-start:16px;border-block-start:1px solid var(--border);background:var(--surface);padding-block:32px;text-align:center}.footer-nav{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-block-end:12px;a{font-size:13px;color:var(--muted);transition:color .15s ease;&:hover{color:var(--text)}&.active{color:var(--text);font-weight:500}}}.footer-note{font-size:12px;color:var(--muted)}.error-page{text-align:center;padding-block-start:64px;.btn{margin-block-start:16px}}.error-page__icon{font-size:48px;line-height:1;margin-block-end:16px}}