:root{color-scheme:light;--bg:#f3f7f8;--panel:#ffffff;--text:#173340;--muted:#536c7a;--line:#d2e0e5;--accent:#146b60;--grid:#a4bec9;--land-start:#c5dfd2;--land-end:#93b9aa;--land-edge:#6b978c;--sea:#658390;--compass:#526e7b;--scale:#617b88;--scale-text:#617b88;--leader:#79949f;--halo:#167b6a15;--halo-edge:#167b6a40;--dot:#167b6a;--label-bg:#ffffff;--label-edge:#a3bec5;--label-code:#536c7a;--label-hover:#e5f3ef;--aircraft:#7a4c15;--tab-selected:#e0ecee;--row-line:#d2e0e580;--state:#536c7a;--cancelled:#a83e37;--cta-text:#ffffff;--cta-hover:#0e584f;--footer:#536c7a;--upcoming-dot:#748c97;--upcoming-leader:#9eb4be;--upcoming-text:#496674;--subtle:#647c88;--scroll:#9fb8c2;--shadow:#28435018;--map-glow:#dfedea;--hud:#ffffffed;font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC",sans-serif;color:var(--text);background:var(--bg)}
:root.night{color-scheme:dark;--bg:#0c1925;--panel:#132330;--text:#eff4f7;--muted:#9aafbd;--line:#2b3e4b;--accent:#a8e3d4;--grid:#36505c;--land-start:#354d50;--land-end:#23363e;--land-edge:#668887;--sea:#5b7586;--compass:#a5b8c3;--scale:#6f8998;--scale-text:#8aa1af;--leader:#8ba4ad;--halo:#a8e3d41a;--halo-edge:#a8e3d440;--dot:#a8e3d4;--label-bg:#172d3b;--label-edge:#547782;--label-code:#a8bfc8;--label-hover:#234554;--aircraft:#e6b77a;--tab-selected:#2b424f;--row-line:#2b3e4b80;--state:#b9ccd6;--cancelled:#f0a99d;--cta-text:#122a30;--cta-hover:#c7f3e8;--footer:#8da4b3;--upcoming-dot:#81939e;--upcoming-leader:#617683;--upcoming-text:#b0c0c9;--subtle:#6e8b9c;--scroll:#3e5867;--shadow:#00000040;--map-glow:#18333a;--hud:#132330ed;}
*{box-sizing:border-box}body{margin:0;min-width:320px}button,a,select{-webkit-tap-highlight-color:transparent}button,select{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button:disabled{cursor:wait;opacity:.5}svg{display:block}button svg{pointer-events:none}[hidden]{display:none!important}
.home-header{position:sticky;top:0;z-index:20;background:var(--bg);display:flex;justify-content:space-between;align-items:center;gap:24px;padding:18px 28px;border-bottom:1px solid var(--line)}
.home-brand{display:flex;gap:12px;align-items:center;font-size:19px;font-weight:650;letter-spacing:.08em}.home-brand .plane-icon{width:32px;height:32px;fill:currentColor;stroke:none}.home-brand small{display:block;color:var(--muted);font-size:8px;font-weight:500;letter-spacing:.23em;margin-top:5px}.home-clock{text-align:right;display:grid;gap:3px}.home-clock span{color:var(--muted);font-size:10px;letter-spacing:.08em}.home-clock time{font-size:21px;font-variant-numeric:tabular-nums;font-weight:550}
.home-layout{position:relative}.island-section{position:relative;background:radial-gradient(ellipse at 40% 45%,var(--map-glow),transparent 70%),var(--bg)}.island-section:before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:64px 64px;opacity:.3;pointer-events:none}.map-heading{position:relative;z-index:2}.eyebrow{font-size:9px;font-weight:600;letter-spacing:.2em;color:var(--accent)}h1{font-size:24px;letter-spacing:.07em;line-height:1.4;margin:6px 0}h2{font-size:22px;letter-spacing:.04em;margin:6px 0 0}.map-heading p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}.island-map{position:relative;max-width:620px;margin:14px auto 0}.taiwan-map{width:100%;height:auto;overflow:visible}.map-grid{display:none}.coastline{filter:drop-shadow(0 4px 0 var(--land-edge)) drop-shadow(0 14px 12px var(--shadow))}.island{fill:url(#land-fill);stroke:var(--land-edge);stroke-width:1.3;stroke-linejoin:round}#land-fill stop:first-child{stop-color:var(--land-start)}#land-fill stop:last-child{stop-color:var(--land-end)}.map-terrain{opacity:.65;mix-blend-mode:multiply;pointer-events:none}.night .map-terrain{opacity:.35;mix-blend-mode:luminosity}.sea-name{fill:var(--sea);font-size:18px;letter-spacing:.14em}.vertical-sea{writing-mode:vertical-rl;letter-spacing:1em}.map-orientation{fill:var(--compass);font-size:17px}.map-scale{stroke:var(--scale);fill:var(--scale-text);font-size:16px}.map-scale text{stroke:none}.airport-leader{fill:none;stroke:var(--leader);stroke-width:1.3}.airport-halo{fill:var(--halo);stroke:var(--halo-edge);stroke-width:1}.airport-dot{fill:var(--accent);stroke:var(--bg);stroke-width:2}.airport-label-bg{fill:var(--label-bg);stroke:var(--label-edge);stroke-width:1.5;transition:fill .18s,stroke .18s}.airport-label{fill:var(--text);font-size:25px;font-weight:600;letter-spacing:.04em}.airport-label-code{fill:var(--label-code);font-size:17px;font-weight:500;letter-spacing:.1em}@media(hover:hover) and (pointer:fine){.map-airport:hover .airport-label-bg{fill:var(--label-hover);stroke:var(--accent)}}.map-airport.selected .airport-dot{fill:var(--aircraft)}
.island-aircraft,.island-aircraft *{pointer-events:none}.island-plane{color:var(--aircraft);fill:var(--aircraft);stroke:var(--bg);stroke-width:2;stroke-linejoin:round;paint-order:stroke fill}.upcoming-airport{pointer-events:none}.upcoming-airport circle{fill:var(--upcoming-dot);stroke:var(--bg);stroke-width:2}.upcoming-airport path{fill:none;stroke:var(--upcoming-leader);stroke-width:1}.upcoming-airport text{fill:var(--upcoming-text);font-size:22px;font-weight:500;paint-order:stroke fill;stroke:var(--bg);stroke-width:5;stroke-linejoin:round}.upcoming-airport tspan{fill:var(--footer);font-size:16px;font-weight:400}
.map-hud{position:relative;z-index:4;color:var(--muted)}.map-caption{display:flex;justify-content:space-between;gap:18px;font-size:11px}.map-key{display:flex;align-items:center;gap:8px}.map-key i{width:6px;height:6px;border-radius:50%;background:var(--accent)}#island-traffic-state{color:var(--aircraft);text-align:right}.traffic-note{font-size:10px;line-height:1.6;margin:10px 0}.upcoming-list{border-top:1px solid var(--line);font-size:11px}.upcoming-list summary{display:flex;align-items:center;justify-content:space-between;cursor:pointer;min-height:44px;list-style:none;gap:12px}.upcoming-list summary::-webkit-details-marker{display:none}.upcoming-list summary svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;flex-shrink:0;transition:transform .2s}.upcoming-list[open] summary svg{transform:rotate(180deg)}.upcoming-list>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 10px;padding:7px 0 18px}.upcoming-list small{font-size:9px;color:var(--subtle);margin-left:6px}
.flight-board{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 14px 40px var(--shadow)}.board-heading{padding:22px 22px 18px;display:flex;justify-content:space-between;align-items:center;gap:12px}.feed-state{font-size:10px;white-space:nowrap;color:var(--muted);display:flex;align-items:center;gap:6px}.feed-state:before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}.feed-state.live{color:var(--accent)}.feed-state.stale{color:var(--aircraft)}
.airport-picker{margin:0 22px}.airport-picker label{display:block;font-size:10px;color:var(--muted);margin-bottom:7px}.airport-select{position:relative}.airport-select select{appearance:none;-webkit-appearance:none;width:100%;min-height:46px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--text);padding:10px 44px 10px 14px;font-size:14px;font-weight:550}.airport-select>svg{position:absolute;right:15px;top:15px;width:16px;height:16px;fill:none;stroke:var(--text);stroke-width:1.7;pointer-events:none}.airport-select option:disabled{color:var(--muted)}
.board-summary{display:flex;gap:22px;margin:20px 22px;color:var(--muted)}.board-summary div{display:grid;gap:5px;flex:1}.board-summary span{font-size:10px}.board-summary strong{color:var(--text);font-size:27px;font-weight:500;font-variant-numeric:tabular-nums}.board-summary p{font-size:9px;line-height:1.7;margin:0;align-self:center}.board-toolbar{display:flex;justify-content:space-between;align-items:center;padding:0 22px;border-bottom:1px solid var(--line)}.direction-tabs{display:flex;gap:21px}.direction-tabs button{min-height:44px;background:none;border:0;border-bottom:2px solid transparent;padding:0 2px;color:var(--muted);font-size:12px}.direction-tabs button[aria-pressed=true]{color:var(--accent);border-bottom-color:var(--accent)}.refresh-board{background:transparent;border:0;color:var(--muted);min-width:44px;min-height:44px;display:grid;place-items:center}.refresh-board svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.flight-columns{padding:12px 22px 9px;color:var(--muted);font-size:9px;display:grid;grid-template-columns:49px 1fr 56px;gap:10px}.flight-columns span:last-child{text-align:right}.home-flights{min-height:180px;max-height:390px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--scroll) transparent}.home-flight{padding:12px 22px;display:grid;grid-template-columns:49px minmax(0,1fr) 56px;gap:10px;align-items:center;border-bottom:1px solid var(--row-line);min-height:67px}.home-flight:last-child{border-bottom:0}.home-flight time{font-size:16px;font-variant-numeric:tabular-nums}.flight-route{min-width:0}.flight-route strong{font-size:13px;font-weight:550;display:block;overflow-wrap:anywhere}.flight-route small{font-size:9px;color:var(--muted);display:block;margin-top:5px;line-height:1.4;overflow-wrap:anywhere}.flight-state{color:var(--state);font-size:10px;line-height:1.5;text-align:right;overflow-wrap:anywhere}.flight-state.cancelled{color:var(--cancelled)}.flight-state.boarding{color:var(--accent)}.flight-state.delayed{color:var(--aircraft)}.board-empty{margin:0;padding:40px 22px;color:var(--muted);font-size:12px;text-align:center;line-height:1.9}.board-bottom{padding:12px 22px 20px;border-top:1px solid var(--line)}.board-bottom p{font-size:9px;line-height:1.5;color:var(--muted);margin:0 0 12px}.enter-airport{display:flex;justify-content:space-between;align-items:center;min-height:46px;padding:0 16px;border-radius:9px;background:var(--accent);color:var(--cta-text);font-size:12px;font-weight:650;letter-spacing:.04em;white-space:nowrap}.enter-airport:hover{background:var(--cta-hover)}.enter-airport svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linejoin:round}
.home-footer{display:flex;justify-content:space-between;gap:20px;padding:12px 28px;color:var(--footer);font-size:9px;line-height:1.6;background:var(--bg);border-top:1px solid var(--line)}.home-footer div{display:flex;gap:14px;flex-wrap:wrap}.home-footer a:hover{color:var(--text)}
@media(min-width:1200px){
 html{height:100%;overflow:hidden}body{height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden}.home-header{flex:0 0 76px;padding:15px 28px}.home-layout{flex:1;min-height:0;overflow:hidden}.island-section{position:absolute;inset:0;overflow:hidden}.map-heading{position:absolute;top:22px;left:28px;max-width:190px;pointer-events:none}.map-heading h1{font-size:22px}.map-heading p{display:none}.island-map{position:absolute;inset:12px 398px 12px 20px;max-width:none;margin:0}.taiwan-map{height:100%;width:100%}.map-hud{position:absolute;left:28px;bottom:20px;width:300px;padding:14px 16px 0;border:1px solid var(--line);border-radius:12px;background:var(--hud);backdrop-filter:blur(16px)}.traffic-note{font-size:9px;margin:8px 0 10px}.upcoming-list>div{position:absolute;left:-1px;bottom:calc(100% + 10px);width:340px;max-height:min(300px,55vh);overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:0 10px 30px var(--shadow);grid-template-columns:repeat(2,minmax(0,1fr))}.flight-board{position:absolute;top:20px;right:24px;bottom:20px;width:350px;z-index:5;display:flex;flex-direction:column;background:var(--hud);backdrop-filter:blur(20px)}.flight-board>*{flex-shrink:0}.home-flights{flex:1;min-height:0;max-height:none;flex-shrink:1}.home-footer{flex:0 0 32px;padding:7px 28px;font-size:8px;align-items:center}.home-footer div{gap:12px;flex-wrap:nowrap}
}
@media(min-width:1200px) and (max-height:700px){.home-header{flex-basis:64px}.board-heading{padding-top:14px;padding-bottom:12px}h2{font-size:20px}.board-summary{margin:12px 22px}.board-summary strong{font-size:23px}.airport-picker label{display:none}.airport-select select{min-height:44px}.board-bottom{padding-bottom:14px}.board-bottom p{margin-bottom:8px}.map-hud{width:270px;padding:10px 12px 0;bottom:14px}.map-caption{font-size:10px}.map-hud .traffic-note{display:none}.map-hud .upcoming-list{margin-top:10px}.flight-board{top:14px;bottom:14px}.home-flight{min-height:62px;padding-top:10px;padding-bottom:10px}}
@media(max-width:1199px){.home-layout{padding:0 20px 24px}.island-section{margin:0 -20px;padding:24px 20px 0}.map-hud{padding:14px 0 4px;border-top:1px solid var(--line)}.flight-board{margin-top:24px}.home-footer{padding:14px 20px;display:block}.home-footer div{margin-top:10px;gap:10px 14px}.island-map{max-width:520px}.home-header{padding:18px 20px}.home-brand{font-size:17px}.home-clock time{font-size:19px}.airport-label{font-size:28px;transform:translateY(2px)}.airport-label-code{font-size:19px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media(min-width:1200px){.map-hud{width:250px}.map-caption{font-size:10px;gap:12px}.board-heading{padding:16px 22px 12px}.airport-picker label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.board-summary{margin:14px 22px}.board-summary strong{font-size:24px}.board-bottom{padding:10px 22px 14px}.board-bottom p{margin-bottom:8px}}

/* Geographic ocean relief follows the existing solar palette. */
:root{--ocean-bg:#c3dfeb;--ocean-ink:#355c70}
:root.night{--ocean-bg:#102333;--ocean-ink:#a0c0d3}
.island-section{background:var(--ocean-bg)}.island-section:before{display:none}
.map-ocean{opacity:.85;pointer-events:none}.night .map-ocean{opacity:.65;filter:brightness(.45) saturate(.75)}
.sea-name{fill:var(--ocean-ink);paint-order:stroke fill;stroke:var(--ocean-bg);stroke-width:3;stroke-linejoin:round}
.ocean-note{font-size:9px;line-height:1.5;margin:8px 0;color:var(--muted)}

.island-map:after{display:none}

/* Map illumination follows solar elevation continuously, independently of the
   UI's earlier dusk-lighting switch. The VIIRS layer shares the relief grid. */
:root .map-ocean{opacity:var(--map-ocean-opacity,.85);filter:brightness(var(--map-relief-brightness,1)) saturate(.85)}
:root .map-terrain{opacity:var(--map-terrain-opacity,.65);mix-blend-mode:multiply;filter:brightness(var(--map-relief-brightness,1))}
.map-night{opacity:var(--map-night-opacity,0);pointer-events:none}
.map-twilight{fill:var(--map-twilight-fill,url(#map-sunset-fill));opacity:var(--map-twilight-opacity,0);pointer-events:none}
.map-weather-shade{opacity:var(--home-weather-dimming,0);pointer-events:none}

/* Continuous regional geography fills the stage, without raster edge fading. */
.taiwan-map{width:100%;height:100%;overflow:hidden}.coastline{fill:url(#land-fill);stroke:var(--land-edge);stroke-width:1;stroke-linejoin:round;filter:drop-shadow(0 2px 0 var(--land-edge))}
@media(min-width:1200px){.island-map{inset:0;max-width:none;margin:0}}
@media(max-width:1199px){.island-section{padding-top:0}.island-map{height:clamp(460px,120vw,680px);max-width:none;margin:0 -20px}.map-orientation{transform:translate(650px,250px)}}

/* Phones and medium windows: map + status first, operations below. */
@media(max-width:1199px){
 .island-section{height:calc(100vh - var(--home-header-height,76px));height:calc(100dvh - var(--home-header-height,76px));display:flex;flex-direction:column;min-height:0}
 .island-map{height:auto;flex:1;min-height:0}
 .home-flights{height:auto;min-height:0;max-height:none;overflow:visible;overscroll-behavior:auto}
 .map-hud{flex:0 0 auto;max-height:50%;overflow-y:auto;overscroll-behavior:contain;margin:0 -20px;padding:14px 20px 4px;background:var(--hud)}
}
/* The geographic camera completes its 600 ms move before the cards appear. */
.home-header,.flight-board,.map-hud,.home-footer,.home-clock{transition:opacity .18s ease}
html[data-home-transition="preparing"] .taiwan-map{visibility:hidden}
html[data-home-transition]:not([data-home-transition="ready"]) :is(.flight-board,.map-hud,.home-footer,.home-clock,.map-airport,.upcoming-airport,.map-scale,.sea-name,.map-orientation,#island-aircraft){opacity:0;visibility:hidden;pointer-events:none;transition:none}
html[data-home-transition]:not([data-home-transition="ready"]) .home-header{opacity:0;visibility:hidden;pointer-events:none;transition:none}
/* Fade the entire header, including its surface, as soon as departure starts. */
html:root[data-home-transition="leaving"] .home-header{opacity:0;visibility:hidden;transition:opacity .18s ease,visibility 0s .18s}
@media(prefers-reduced-motion:reduce){.home-header,.flight-board,.map-hud,.home-footer,.home-clock{transition:none}}

.home-footer div{align-items:center}.home-footer a{display:inline-flex;align-items:center;min-height:24px}
.island-flight-trail{fill:none;stroke:var(--aircraft);stroke-width:1.2;opacity:.55;stroke-linejoin:round}

/* Header actions share one centered, unfilled target in both member states. */
.home-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex-shrink:0}
.home-header .home-actions :is(.settings-trigger,.member-avatar){display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;padding:0;margin:0;border:0;border-radius:10px;box-shadow:none;background:transparent;color:var(--text)}
.home-header .home-actions .member-avatar{flex-basis:36px;width:36px;height:36px}
.home-header .home-actions :is(.settings-trigger,.member-avatar) svg{display:block;width:22px;height:22px;flex:none;stroke-linecap:round;stroke-linejoin:round}
.home-header .home-actions :is(.settings-trigger,.member-avatar):is(:focus-visible,:active){background:var(--tab-selected)}
@media(hover:hover){.home-header .home-actions :is(.settings-trigger,.member-avatar):hover{background:var(--tab-selected)}}
.island-map .home-clock{position:absolute;right:16px;bottom:12px;z-index:3;display:grid;justify-items:end;gap:3px;padding:6px 9px;background:transparent;color:var(--text);pointer-events:none}
.island-map .home-clock span{font-size:10px;color:inherit}.island-map .home-clock time{font-size:16px;line-height:1.2}
@media(min-width:1200px){.island-map .home-clock{right:398px;bottom:20px}}