@font-face{font-family:Inter;src:url(/assets/inter-latin-400-normal-C38fXH4l.woff2) format("woff2");font-weight:400;font-display:swap}@font-face{font-family:Inter;src:url(/assets/inter-latin-600-normal-LgqL8muc.woff2) format("woff2");font-weight:600;font-display:swap}:root{--abt-ink:#111318;--abt-muted:#626874;--abt-canvas:#f7f8fa;--abt-surface:#fff;--abt-action:#315eea;--abt-sunrise:#2385ff;--abt-sunset:#ff9f0a;--abt-reference:#a5aab3;--abt-border:#e2e5ea;--abt-radius-sm:12px;--abt-radius-lg:20px;--abt-sunset-line:#9c4a00;--abt-reference-line:#68707d;--abt-axis:#59616e;--abt-mobile-actions-height:69px;--abt-shadow:0 16px 46px rgba(17,19,24,.08)}*{box-sizing:border-box}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}html{color:var(--abt-ink);background:var(--abt-canvas);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.45;-webkit-font-smoothing:antialiased}body{margin:0;min-width:320px;background:var(--abt-canvas);font-size:15px}button,input{font:inherit}button,a,input{touch-action:manipulation;-webkit-tap-highlight-color:rgba(49,94,234,.18)}button{cursor:pointer;transition:background-color .15s,border-color .15s,transform .15s}button:hover:not(:disabled){border-color:#c6cbd4}button:active:not(:disabled){transform:translateY(1px)}button:focus-visible,a:focus-visible,[tabindex]:focus-visible,input:focus-visible{outline:3px solid color-mix(in srgb,var(--abt-action) 30%,transparent);outline-offset:3px}.no-js .js-only{display:none!important}h1,h2{text-wrap:balance;scroll-margin-top:24px}p{text-wrap:pretty}a{color:inherit}.skip-link{position:fixed;z-index:100;top:8px;left:8px;padding:10px 14px;background:var(--abt-ink);color:#fff;border-radius:8px;opacity:0;pointer-events:none;transform:translateY(-160%)}.skip-link:focus{opacity:1;pointer-events:auto;transform:none}.site-header{height:72px;max-width:1536px;margin:auto;padding:0 clamp(20px,4vw,64px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--abt-border)}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;font-weight:600;letter-spacing:-.02em}.brand img{border-radius:50%;border:1px solid var(--abt-border)}.project-label{color:#6c717b;font-size:13px}.hero{max-width:850px;margin:0 auto;padding:clamp(58px,8vw,110px) 24px clamp(44px,6vw,74px);text-align:center}.eyebrow{margin:0 0 10px;color:#6d727c;font-size:11px;line-height:1.2;font-weight:600;letter-spacing:.13em;text-transform:uppercase}.hero h1{max-width:780px;margin:0 auto;font-size:clamp(40px,6vw,76px);line-height:.99;letter-spacing:-.058em;font-weight:600}.hero-copy{max-width:650px;margin:24px auto 30px;color:#555b65;font-size:clamp(16px,2vw,20px);line-height:1.55}.location-button{min-width:0;width:min(100%,390px);padding:12px 14px;display:inline-flex;align-items:center;gap:12px;text-align:left;color:var(--abt-ink);border:1px solid var(--abt-border);border-radius:var(--abt-radius-sm);background:var(--abt-surface);box-shadow:0 8px 24px #1113180d}.location-button:hover{background:#fbfcfd}.location-button svg{width:22px;flex:0 0 auto;fill:none;stroke:var(--abt-action);stroke-width:1.8}.location-button span:nth-of-type(1){display:grid;flex:1;min-width:0;overflow-wrap:anywhere}.location-button small,.location-note{font-size:12px;color:var(--abt-muted)}.location-button strong{font-size:14px}.location-button>span:last-child{font-size:12px;color:var(--abt-action);font-weight:600}.location-note{margin:9px 0 0}.app-workspace{width:min(calc(100% - 40px),1536px);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-items:start}.settings-rail,.insight-rail{display:none}.result-column{min-width:0}.settings-row{display:none}.chart-card{background:var(--abt-surface);border:1px solid var(--abt-border);border-radius:var(--abt-radius-lg);box-shadow:var(--abt-shadow);overflow:hidden}.chart-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:22px 22px 0}.chart-header h2{margin:0;font-size:clamp(20px,2.4vw,30px);letter-spacing:-.035em;line-height:1.1}.share-wrap{position:relative}.icon-button{width:44px;height:44px;padding:11px;display:grid;place-items:center;background:var(--abt-canvas);border:1px solid var(--abt-border);border-radius:50%}.icon-button:hover{background:#edf0f5}.icon-button svg{width:20px;fill:none;stroke:currentColor;stroke-width:1.8}.tooltip{position:absolute;z-index:5;right:0;top:calc(100% + 8px);width:max-content;padding:6px 9px;background:var(--abt-ink);color:#fff;border-radius:7px;font-size:11px;opacity:0;transform:translateY(-3px);pointer-events:none;transition:opacity .15s,transform .15s}.share-wrap:hover .tooltip,.icon-button:focus-visible+.tooltip{opacity:1;transform:none}.gain-summary{margin:20px 22px 4px;display:flex;align-items:baseline;gap:10px}.gain-summary strong{font-size:clamp(28px,4vw,45px);line-height:1;letter-spacing:-.05em;color:var(--abt-action)}.gain-summary span{max-width:350px;color:#686e78;font-size:12px}.gain-summary strong,.insight-rail strong,.chart-readout,.setting-block strong,.settings-row strong{font-variant-numeric:tabular-nums}.chart-region{padding:14px 14px 18px}.chart-plot{position:relative;padding:4px 0 0 36px}.time-labels{position:absolute;inset:5px auto 20px 0;display:flex;flex-direction:column;justify-content:space-between;color:var(--abt-axis);font-size:9px}.daylight-chart{display:block;width:100%;height:clamp(240px,34vw,410px);overflow:visible}.grid path{fill:none;stroke:#d8dce2;stroke-width:1;vector-effect:non-scaling-stroke}.daylight-fill{fill:#2385ff0f}.sunrise-line,.sunset-line,.reference-line,.today-line{fill:none;vector-effect:non-scaling-stroke}.sunrise-line{stroke:var(--abt-sunrise);stroke-width:3}.sunset-line{stroke:var(--abt-sunset-line);stroke-width:3}.reference-line{stroke:var(--abt-reference-line);stroke-width:1.5;stroke-dasharray:5 5}.today-line{stroke:#939ba7;stroke-width:1}.sun-dot{fill:var(--abt-sunrise);stroke:#fff;stroke-width:3;vector-effect:non-scaling-stroke}.month-labels{display:flex;justify-content:space-between;color:var(--abt-axis);font-size:9px}.chart-legend{padding:10px 4px 0 36px;display:flex;gap:14px;flex-wrap:wrap;color:#505762;font-size:11px}.chart-legend span{display:flex;align-items:center;gap:6px}.legend-line{width:15px;height:2px;background:currentColor}.legend-line.sunrise{color:var(--abt-sunrise)}.legend-line.sunset{color:var(--abt-sunset-line)}.legend-line.reference{height:0;color:var(--abt-reference-line);background:transparent;border-top:2px dashed currentColor}.chart-readout{margin:18px 0 0 36px;padding:12px 14px;display:flex;gap:8px;align-items:center;background:var(--abt-canvas);border-radius:var(--abt-radius-sm);font-size:11px}.chart-readout strong{white-space:nowrap}.chart-readout span{color:#5e6570}.post-tool{display:flow-root}.editorial{max-width:970px;margin:clamp(80px,11vw,150px) auto;padding:0 24px}.editorial h2{max-width:740px;margin:0;font-size:clamp(34px,5vw,62px);line-height:1.02;letter-spacing:-.052em}.editorial-grid{margin-top:36px;display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(24px,5vw,70px)}.editorial-grid p{margin:0;color:#525862;font-size:17px;line-height:1.7}.closing-cta{width:min(calc(100% - 40px),1200px);margin:0 auto 70px;padding:clamp(30px,5vw,58px);display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--abt-ink);color:#fff;border-radius:var(--abt-radius-lg)}.closing-cta h2{max-width:700px;margin:0;font-size:clamp(28px,4vw,46px);line-height:1.08;letter-spacing:-.04em}.closing-cta p:not(.eyebrow){color:#afb3bc}.closing-cta .eyebrow{color:#aeb4c3}.site-footer{max-width:1200px;margin:auto;padding:0 24px 36px;display:flex;justify-content:space-between;color:var(--abt-muted);font-size:12px}.site-footer a{color:var(--abt-ink)}.primary-button,.secondary-button{min-height:48px;padding:0 18px;border-radius:var(--abt-radius-sm);font-weight:600;white-space:nowrap}.primary-button{color:#fff;background:var(--abt-action);border:1px solid var(--abt-action)}.primary-button:hover:not(:disabled){background:#244fd5;border-color:#244fd5}.primary-button:disabled{opacity:.55;cursor:not-allowed}.secondary-button{color:var(--abt-ink);background:#fff;border:1px solid var(--abt-border)}.secondary-button:hover:not(:disabled){background:#f1f3f7}.mobile-actions{display:none}dialog{width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:max(20px,env(safe-area-inset-top)) max(20px,env(safe-area-inset-right)) max(20px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));border:0;background:transparent;color:var(--abt-ink);overscroll-behavior:contain}dialog::backdrop{background:#1113187a;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.dialog-panel{width:min(100%,480px);max-height:100%;margin:auto;padding:26px;background:#fff;border:1px solid var(--abt-border);border-radius:var(--abt-radius-lg);box-shadow:var(--abt-shadow);overflow:auto;overscroll-behavior:contain}dialog[open]{display:flex;align-items:center}.dialog-panel header{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.dialog-panel h2{margin:0;font-size:25px;letter-spacing:-.035em}.dialog-panel>p{color:#656b75}.dialog-close{width:44px;height:44px;padding:0;border:1px solid var(--abt-border);border-radius:50%;background:var(--abt-canvas);font-size:24px;line-height:1}.dialog-panel label{display:grid;gap:7px;margin:18px 0;color:#4f5560;font-size:12px;font-weight:600}.dialog-panel input:not([type=range]){width:100%;height:46px;padding:0 12px;color:var(--abt-ink);border:1px solid var(--abt-border);border-radius:10px;background:#fff}.dialog-panel input[type=range]{width:100%;accent-color:var(--abt-action)}.dialog-panel>.primary-button,.dialog-panel>.secondary-button,.dialog-panel form>.primary-button{width:100%;margin-top:8px}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.range-labels{display:flex;justify-content:space-between;color:#5f6671;font-size:10px;font-weight:400}.dialog-feedback{min-height:20px;margin-bottom:0}.noscript{margin:20px;padding:16px;background:#fff;border:1px solid var(--abt-border);border-radius:12px;box-shadow:var(--abt-shadow)}@media(max-width:699px){.site-header{height:60px;padding-inline:18px}.project-label{display:none}.hero{padding:48px 18px 36px}.hero h1{font-size:42px}.hero-copy{margin-top:18px;font-size:16px}.app-workspace{width:calc(100% - 24px)}.chart-header{padding:18px 16px 0}.chart-header h2{font-size:20px}.gain-summary{margin:18px 16px 4px;display:grid;gap:5px}.gain-summary strong{font-size:35px}.gain-summary span{font-size:11px}.chart-region{padding:6px 10px 15px}.daylight-chart{height:260px}.chart-readout{margin-left:30px;display:grid}.chart-legend{padding-left:30px;gap:10px}.editorial{margin:80px auto;padding-inline:20px}.editorial h2{font-size:38px}.editorial-grid{grid-template-columns:1fr;gap:18px;margin-top:24px}.editorial-grid p{font-size:15px}.closing-cta{margin-bottom:42px;padding:30px 24px}.closing-cta h2{font-size:30px}.desktop-support{display:none}.site-footer{padding-bottom:30px;display:grid;gap:7px}.mobile-actions{position:sticky;z-index:20;top:calc(100dvh - var(--abt-mobile-actions-height) - env(safe-area-inset-bottom));min-height:calc(var(--abt-mobile-actions-height) + env(safe-area-inset-bottom));width:calc(100% - 24px);margin:12px auto 0;padding:10px 0 calc(10px + env(safe-area-inset-bottom));display:grid;grid-template-columns:1fr 1fr;gap:9px;background:var(--abt-canvas);border-top:1px solid var(--abt-border)}.mobile-actions button{min-width:0}.tune-dialog{padding:0}.tune-dialog[open]{align-items:flex-end}.tune-dialog .dialog-panel{width:100%;margin:0;padding:24px max(20px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));border-radius:20px 20px 0 0}.location-button{width:100%}}@media(min-width:700px){.mobile-support{display:none}.settings-row{margin-bottom:14px;padding:14px 18px;display:grid;grid-template-columns:repeat(3,1fr) auto;gap:18px;align-items:center;background:var(--abt-surface);border:1px solid var(--abt-border);border-radius:var(--abt-radius-sm)}.settings-row div{display:grid;gap:2px}.settings-row span{color:var(--abt-muted);font-size:10px;text-transform:uppercase;letter-spacing:.08em}.settings-row strong{font-size:13px}.settings-row button{color:var(--abt-action);background:transparent;border:0;font-weight:600}.chart-header{padding:28px 30px 0}.gain-summary{margin:24px 30px 5px}.chart-region{padding:14px 24px 24px}}@media(min-width:900px){.app-workspace{grid-template-columns:minmax(0,2.25fr) minmax(205px,.75fr);gap:20px}.settings-row{grid-column:1/-1}.insight-rail{display:grid;gap:12px}.insight-rail section{padding:20px;display:grid;gap:5px;background:var(--abt-surface);border:1px solid var(--abt-border);border-radius:var(--abt-radius-lg)}.insight-rail strong{margin-top:7px;font-size:20px;letter-spacing:-.03em}.insight-rail .insight-value{font-size:36px;color:var(--abt-action)}.insight-rail span{color:#6e747e;font-size:11px}.insight-rail p{margin:6px 0 0;color:#6e747e;font-size:12px}.support-status{border-left:3px solid var(--abt-action)!important}.daylight-chart{height:360px}}@media(min-width:1200px){.app-workspace{grid-template-columns:220px minmax(0,1fr) 225px;gap:22px}.settings-rail{position:sticky;top:22px;padding:22px;display:block;background:var(--abt-surface);border:1px solid var(--abt-border);border-radius:var(--abt-radius-lg)}.rail-heading h2{margin:0;font-size:20px;letter-spacing:-.03em}.setting-block{padding:20px 0;border-bottom:1px solid var(--abt-border);display:grid;gap:7px}.setting-block>span,.rail-note{color:var(--abt-muted);font-size:11px}.setting-block strong{font-size:14px}.balance-track{height:3px;margin-top:8px;background:var(--abt-border)}.balance-track i{display:block;width:8px;height:8px;margin:auto;border-radius:50%;background:var(--abt-action);transform:translateY(-2px)}.balance-labels{display:flex;justify-content:space-between;color:var(--abt-muted);font-size:9px}.rail-note{margin:18px 0 0;line-height:1.5}.rail-tune-button{width:100%;margin-top:18px}.settings-row{display:none}.daylight-chart{height:390px}}@media(min-width:1600px){.app-workspace{grid-template-columns:240px minmax(0,1000px) 240px;justify-content:center}.hero{padding-top:110px}.chart-card{min-height:650px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}.chart-tabs{width:max-content;margin:12px 0 4px 36px;padding:3px;display:flex;gap:2px;background:#eef1f5;border:1px solid var(--abt-border);border-radius:10px}.chart-tabs button{min-height:38px;padding:0 14px;color:#626975;background:transparent;border:0;border-radius:7px;font-size:12px;font-weight:600}.chart-tabs button.is-active{color:var(--abt-ink);background:#fff;box-shadow:0 1px 4px #1113181f}.chart-views{display:grid;gap:18px}.chart-panel{min-width:0}.chart-panel[data-chart-panel=clock],.chart-region[data-active-chart=clock] .chart-panel[data-chart-panel=daylight]{display:none}.chart-region[data-active-chart=clock] .chart-panel[data-chart-panel=clock]{display:block}.model-chart{display:block;width:100%;height:clamp(250px,32vw,390px);overflow:hidden}.model-chart path,.model-chart line{vector-effect:non-scaling-stroke}.chart-grid-line,.chart-axis-line{stroke:#dde1e7;stroke-width:1}.chart-axis-label,.chart-month-label{fill:var(--abt-axis);font-family:Inter,sans-serif;font-size:9px}.sunrise-line,.sunset-line,.reference-line,.offset-line,.adjustment-line{fill:none;stroke-linecap:round;stroke-linejoin:round}.sunrise-line{stroke:var(--abt-sunrise);stroke-width:2.5}.sunset-line{stroke:var(--abt-sunset-line);stroke-width:2.5}.reference-line{stroke:var(--abt-reference-line);stroke-width:1.4;stroke-dasharray:5 5}.offset-line{stroke:var(--abt-action);stroke-width:2.5}.adjustment-line{stroke:var(--abt-sunset-line);stroke-width:1.4;stroke-dasharray:2 4}.zero-line{stroke:var(--abt-ink);stroke-width:1;opacity:.65}.dst-marker{stroke:var(--abt-reference-line);stroke-width:1;stroke-dasharray:2 4}.active-cursor{stroke:var(--abt-ink);stroke-width:1.5}.inspection-target{cursor:crosshair;pointer-events:all}.inspection-target:focus{outline:none}.model-chart:has(.inspection-target:focus-visible){filter:drop-shadow(0 0 2px color-mix(in srgb,var(--abt-action) 55%,transparent))}.chart-readout{min-height:52px}.chart-readout span{overflow-wrap:anywhere}.field-error{min-height:18px;margin:4px 0;color:#a12a20!important;font-size:12px}.reset-notice{width:min(calc(100% - 40px),920px);margin:-28px auto 28px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff5e6;border:1px solid #e9c78d;border-radius:var(--abt-radius-sm);font-size:12px}.reset-notice button{width:34px;height:34px;background:transparent;border:0;border-radius:50%;font-size:20px}.balance-track i{margin-left:50%;transform:translate(-50%,-2px)}@media(max-width:699px){.chart-tabs{margin:12px auto 6px}.chart-tabs button{min-width:112px}.model-chart{height:250px}.chart-readout{margin-left:0}.chart-axis-label,.chart-month-label{font-size:10px}.reset-notice{width:calc(100% - 24px);margin:-18px auto 20px}}@media(min-width:1200px){.chart-tabs{display:none}.chart-views{grid-template-columns:1.45fr 1fr;gap:12px}.chart-panel[data-chart-panel=clock],.chart-region[data-active-chart=clock] .chart-panel[data-chart-panel=daylight]{display:block}.model-chart{height:310px}.chart-readout{margin-top:10px}.chart-card{min-height:0}}@media(min-width:1600px){.chart-card{min-height:680px}.model-chart{height:350px}}.sunset-line{stroke-width:3}.model-chart-legend{padding:0 8px 0 42px}.legend-line.offset{color:var(--abt-action)}.legend-line.adjustment{height:0;color:var(--abt-sunset-line);background:transparent;border-top:2px dotted currentColor}.polar-label{fill:var(--abt-ink);font:600 11px Inter,sans-serif}.dst-label{fill:var(--abt-axis);font:600 8px Inter,sans-serif;letter-spacing:.06em}.location-search{position:relative}.location-results{position:absolute;z-index:2;inset:calc(100% - 14px) 0 auto;margin:0;padding:6px;max-height:240px;overflow:auto;list-style:none;background:var(--abt-surface);border:1px solid var(--abt-border);border-radius:10px;box-shadow:0 14px 32px #11131821}.location-results[hidden]{display:none}.location-results [role=option]{min-height:44px;padding:11px 12px;display:flex;align-items:center;border-radius:7px;font-size:14px;cursor:pointer}.location-results [role=option]:hover,.location-results [role=option][aria-selected=true]{background:#eef2ff;color:#214bc7}.location-status{min-height:21px;margin:8px 0 0!important;color:#656b75!important;font-size:12px}.location-status:not(:empty){padding:2px 0}.dialog-panel>[data-use-location]{width:100%;margin-top:20px}[data-support-status][aria-busy=true] [data-support-label]{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[data-support-status][aria-busy=true]>.support-status>span:after,[data-support-status][aria-busy=true]>span:after,.closing-support-status[data-support-status][aria-busy=true]>p:first-child:after{content:"";display:inline-block;width:120px;height:11px;background:#e7eaf0;border-radius:5px;animation:support-pulse 1.3s ease-in-out infinite}[data-support-count]:empty{display:none}.support-status>span{display:flex;align-items:baseline;gap:7px}.support-status [data-support-count]{font-size:31px;color:var(--abt-action);font-style:normal}.support-status [data-support-label]{font-size:11px;font-style:normal}.support-status [data-support-recent]{line-height:1.5}.support-status [data-support-recent] span{display:block;color:var(--abt-ink)}.closing-support-status>p:first-child{display:flex;align-items:baseline;gap:9px}.closing-support-status [data-support-count]{font-size:28px}.closing-support-status [data-support-recent]{font-size:12px;color:#afb3bc}.support-preview{padding:12px 14px;display:grid;gap:4px;background:var(--abt-canvas);border:1px solid var(--abt-border);border-radius:10px}.support-preview span{color:var(--abt-muted);font-size:10px;text-transform:uppercase;letter-spacing:.08em}.support-preview strong{font-size:13px;overflow-wrap:anywhere}.dialog-panel .consent-field{min-height:44px;grid-template-columns:20px 1fr;align-items:center;font-size:12px;line-height:1.5}.dialog-panel .consent-field input{width:18px!important;height:18px!important;margin:0;accent-color:var(--abt-action)}.support-privacy{font-size:11px;color:#717782;line-height:1.55}.support-privacy a{text-decoration:underline}.support-confirmation{min-height:20px;color:#17653a;font-size:12px}.turnstile-slot{min-height:0}.support-dialog form>.primary-button{width:100%;margin-top:5px}@keyframes support-pulse{50%{opacity:.52}}@media(max-width:699px){.support-dialog{padding:0}.support-dialog[open]{align-items:flex-end}.support-dialog .dialog-panel{width:100%;margin:0;padding:24px max(20px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));border-radius:20px 20px 0 0}}@media(prefers-reduced-motion:reduce){[data-support-status][aria-busy=true] [data-support-label]{animation:none}}.share-preview{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;background:var(--abt-canvas);border:1px solid var(--abt-border);border-radius:12px}.share-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.share-actions .secondary-button{display:flex;align-items:center;justify-content:center;text-decoration:none}.share-error{min-height:20px;margin:8px 0 0!important;color:#6a707a!important;font-size:12px}