:root {
  color-scheme: dark;
  --ink: #050708;
  --cream: #f3e6c6;
  --orange: #f4512c;
  --cyan: #52d3e8;
  --shadow: #010203;
  --pointer: 37.5%;
  --blend: .5;
  --ease: cubic-bezier(.2,.9,.2,1);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: var(--ink); }
body { color: var(--cream); font-family: Arial, Helvetica, sans-serif; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button { color: inherit; }

.app { position: relative; width: 100%; height: 100%; min-height: 100svh; overflow: hidden; isolation: isolate; background: var(--ink); }
.app::before { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none; background: radial-gradient(circle at 50% 40%, transparent 0 42%, rgba(0,0,0,.12) 70%, rgba(0,0,0,.62) 100%); }
.app::after { content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none; opacity: .1; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E"); mix-blend-mode: soft-light; }

.single-sky, .compare-sky, .sky-canvas, .twinkle-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.single-sky { z-index: 0; overflow: hidden; }
.sky-canvas { opacity: 0; transform: scale(1.025); transition: opacity 1500ms var(--ease), transform 2200ms var(--ease); }
.sky-canvas.is-visible { opacity: 1; transform: scale(1); }
.twinkle-canvas { z-index: 1; pointer-events: none; }

.topbar { position: absolute; z-index: 30; top: 0; left: 0; right: 0; display: flex; align-items: flex-start; justify-content: space-between; padding: max(24px,env(safe-area-inset-top)) 34px 0; pointer-events: none; }
.topbar button { pointer-events: auto; }
.brand, .learning-brand { padding: 0; border: 0; background: transparent; color: var(--cream); font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif; font-size: clamp(48px,5vw,72px); line-height: .82; letter-spacing: -.045em; text-transform: uppercase; text-shadow: 4px 4px 0 rgba(0,0,0,.5); cursor: pointer; }
.brand-star, .learning-brand span { display: inline-block; width: .4em; color: var(--orange); font-family: Georgia,serif; font-size: .46em; vertical-align: .3em; transform: rotate(8deg); }
.actions { display: flex; align-items: center; gap: 12px; }
.text-button, .icon-button, .learning-back { min-height: 48px; padding: 0 18px; border: 2px solid var(--cream); border-radius: 0; background: rgba(5,7,8,.88); color: var(--cream); box-shadow: 5px 5px 0 var(--shadow); font-family: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size: 12px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; cursor: pointer; transition: transform 120ms ease, box-shadow 120ms ease, color 160ms ease; }
.icon-button { display: flex; align-items: center; gap: 8px; }
.icon-button svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: square; stroke-linejoin: miter; }
.learn-button { color: var(--cyan); }
.text-button:hover, .icon-button:hover, .learning-back:hover, .text-button:focus-visible, .icon-button:focus-visible, .learning-back:focus-visible { transform: translate(3px,3px); box-shadow: 2px 2px 0 var(--shadow); outline: 0; color: var(--cyan); }

.search-region { position: absolute; z-index: 20; inset: 0; pointer-events: none; }
.search-stack { pointer-events: auto; }
.is-home .search-stack { position: absolute; top: 50%; left: 4vw; width: min(1000px,68vw); transform: translateY(-39%); }
.intro { margin: 0 0 clamp(24px,3vh,34px); }
.intro h1 { max-width: 950px; margin: 0; color: var(--cream); font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: clamp(70px,7.3vw,112px); font-weight: 900; line-height: .84; letter-spacing: -.03em; text-transform: uppercase; text-shadow: 5px 5px 0 rgba(0,0,0,.46); }
.intro h1 em { color: var(--orange); font-style: normal; }

.search-form { position: relative; display: grid; grid-template-columns: minmax(0,1fr) minmax(300px,38%); width: 100%; height: 94px; border: 3px solid var(--cream); background: var(--ink); box-shadow: 8px 8px 0 var(--shadow); }
.search-form input { min-width: 0; height: 100%; padding: 0 28px; border: 0; border-right: 3px solid var(--ink); outline: 0; background: var(--cream); color: var(--ink); font-family: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size: clamp(17px,1.6vw,24px); font-weight: 900; letter-spacing: .08em; text-transform: uppercase; appearance: none; }
.search-form input::placeholder { color: rgba(5,7,8,.68); opacity: 1; }
.search-form input::-webkit-search-cancel-button { display: none; }
.search-forward { display: flex; min-width: 0; align-items: center; justify-content: center; gap: 20px; padding: 0 20px; border: 0; border-left: 3px solid var(--ink); border-radius: 0; background: var(--orange); color: var(--ink); font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: clamp(27px,2.5vw,40px); letter-spacing: .015em; text-transform: uppercase; cursor: pointer; touch-action: manipulation; }
.search-forward svg { width: 38px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: square; stroke-linejoin: miter; }
.search-forward:hover, .search-forward:focus-visible { outline: 3px solid var(--cyan); outline-offset: -7px; filter: brightness(1.06); }
.search-forward:active { transform: translate(4px,4px); }
.search-forward:disabled { cursor: wait; filter: saturate(.55) brightness(.8); }
.loading-dot { position: absolute; z-index: 3; top: 14px; right: calc(38% + 14px); width: 9px; height: 9px; border-radius: 50%; background: var(--orange); opacity: 0; }
.is-loading .loading-dot { opacity: 1; animation: pulse .5s steps(2,end) infinite alternate; }

.search-results { width: 62%; max-height: min(240px,28vh); margin-top: 9px; overflow-y: auto; border: 2px solid var(--cream); background: var(--ink); box-shadow: 6px 6px 0 var(--shadow); }
.result-option { display: grid; width: 100%; padding: 13px 16px; border: 0; border-bottom: 1px solid rgba(243,230,198,.35); background: var(--ink); color: var(--cream); text-align: left; cursor: pointer; }
.result-option:last-child { border-bottom: 0; }
.result-option:hover, .result-option:focus-visible { background: var(--cream); color: var(--ink); outline: 0; }
.option-name { font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: 23px; letter-spacing: .02em; text-transform: uppercase; }
.option-context { margin-top: 4px; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.result-option:hover .option-context, .result-option:focus-visible .option-context { color: #096b7b; }
.search-message { min-height: 18px; margin: 9px 0 0; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 12px; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.quick-places { display: flex; align-items: center; gap: 12px; margin-top: 5px; color: var(--cream); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 11px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.quick-places span { color: var(--cream); }
.quick-places i { color: var(--cream); font-style: normal; }
.quick-places button { padding: 6px 0; border: 0; background: transparent; color: var(--cyan); font: inherit; cursor: pointer; }
.quick-places button:hover, .quick-places button:focus-visible { color: var(--orange); outline: 0; text-decoration: underline; text-underline-offset: 4px; }
.quick-places.is-rotating { animation: place-swap .38s var(--ease); }
.search-results:not([hidden]) ~ .quick-places, .search-message:not(:empty) + .quick-places { display: none; }

.result { position: absolute; z-index: 14; top: clamp(150px,17vh,185px); left: 4vw; width: min(820px,58vw); }
.result.is-revealing { animation: reveal .8s var(--ease) both; }
.place-label { margin: 0 0 14px; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 14px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.place-label::before { content: "⌖ "; color: var(--cyan); }
.meaning { max-width: 800px; margin: 0; color: var(--cream); font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: clamp(64px,6.5vw,100px); font-weight: 900; line-height: .84; letter-spacing: -.018em; text-transform: uppercase; text-shadow: 4px 4px 0 rgba(0,0,0,.48); }
.meaning em { color: var(--orange); font-style: normal; }
.result-meta { display: flex; align-items: stretch; gap: 12px; margin-top: 22px; }
.bortle-readout { display: inline-flex; align-items: center; margin: 0; padding: 11px 14px; border: 2px solid var(--cream); background: rgba(5,7,8,.9); color: var(--cream); box-shadow: 4px 4px 0 var(--shadow); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 14px; font-weight: 900; letter-spacing: .08em; }
.bortle-help { padding: 10px 14px; border: 2px solid var(--cyan); border-radius: 0; background: rgba(5,7,8,.9); color: var(--cyan); box-shadow: 4px 4px 0 var(--shadow); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 12px; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; cursor: pointer; }
.bortle-help:hover, .bortle-help:focus-visible { background: var(--cyan); color: var(--ink); outline: 0; }
.detail { max-width: 720px; margin: 18px 0 0; color: rgba(243,230,198,.9); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 17px; font-weight: 700; line-height: 1.5; }
.drive, .darker { margin: 15px 0 0; color: var(--cream); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 13px; font-weight: 900; line-height: 1.35; letter-spacing: .065em; text-transform: uppercase; }
.darker { margin-top: 6px; color: var(--cyan); }
.darker-action { display: grid; width: min(640px,100%); margin-top: 14px; padding: 0; overflow: hidden; border: 2px solid var(--cream); border-radius: 0; background: rgba(5,7,8,.92); color: var(--cream); box-shadow: 7px 7px 0 var(--shadow); text-align: left; cursor: pointer; transition: transform 140ms ease, box-shadow 140ms ease; }
.darker-destination { padding: 10px 14px; border-bottom: 2px solid var(--cream); color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 11px; font-weight: 900; line-height: 1.3; letter-spacing: .065em; text-transform: uppercase; }
.darker-cta { display: flex; min-height: 58px; align-items: center; justify-content: space-between; gap: 20px; padding: 7px 16px; background: var(--orange); color: var(--ink); font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: clamp(28px,2.4vw,38px); letter-spacing: .018em; text-transform: uppercase; }
.darker-cta svg { flex: 0 0 auto; width: 34px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: square; stroke-linejoin: miter; transition: transform 180ms var(--ease); }
.darker-action:hover, .darker-action:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; transform: translate(4px,4px); box-shadow: 3px 3px 0 var(--shadow); }
.darker-action:hover .darker-cta svg, .darker-action:focus-visible .darker-cta svg { transform: translateX(6px); }

.bortle-machine { display: none; }
.has-result .bortle-machine { position: absolute; z-index: 14; top: clamp(220px,25vh,275px); right: 4vw; display: block; width: min(500px,34vw); padding: 28px 28px 22px; border: 2px solid var(--cream); background: rgba(4,6,8,.89); box-shadow: 8px 8px 0 var(--shadow); }
.machine-label { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 14px; font-weight: 900; letter-spacing: .1em; }
.machine-label button { width: auto; min-height: 30px; padding: 5px 8px; border: 1px solid var(--cyan); background: transparent; color: var(--cyan); font-family: inherit; font-size: 9px; font-weight: 900; letter-spacing: .05em; cursor: pointer; }
.machine-label button:hover, .machine-label button:focus-visible { background: var(--cyan); color: var(--ink); outline: 0; }
.machine-explainer { max-width: 390px; margin: 17px 0 27px; color: rgba(243,230,198,.82); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 13px; font-weight: 700; line-height: 1.55; }
.scale-slots { display: grid; grid-template-columns: repeat(9,1fr); gap: 4px; height: 48px; }
.scale-slots span { position: relative; display: grid; place-items: center; }
.scale-slots span b { position: relative; z-index: 2; font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 15px; }
.scale-slots span::after { content: ""; position: absolute; bottom: -14px; left: 50%; width: 2px; height: 11px; background: var(--cream); transform: translateX(-50%); }
.scale-slots span.is-active b { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 50%; background: var(--orange); color: var(--ink); box-shadow: 3px 3px 0 var(--shadow); font-size: 20px; }
.machine-track { position: relative; height: 20px; border-top: 2px solid var(--cream); }
.machine-track i { position: absolute; top: -5px; left: var(--pointer); width: 2px; height: 38px; background: var(--orange); transform: translateX(-50%); transition: left .8s cubic-bezier(.2,1.35,.25,1); }
.spring { display: none; }
.machine-ends { display: flex; justify-content: space-between; margin-top: 18px; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 10px; font-weight: 900; letter-spacing: .07em; }
.bortle-machine > p:last-child { margin: 22px 0 0; color: var(--cream); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 12px; font-weight: 900; letter-spacing: .08em; text-align: center; }
.is-loading .scale-slots span b { animation: pulse .5s steps(2,end) infinite alternate; }

.has-result .intro, .has-result .quick-places, .has-result .learn-button, .is-comparing .intro, .is-comparing .quick-places, .is-comparing .learn-button { display: none; }
.has-result .search-stack, .is-comparing .search-stack { position: absolute; right: 4vw; bottom: 34px; left: 4vw; }
.has-result .search-form, .is-comparing .search-form { grid-template-columns: minmax(0,1fr) 110px; height: 62px; }
.has-result .search-form input, .is-comparing .search-form input { font-size: 12px; }
.has-result .search-forward span, .is-comparing .search-forward span { display: none; }
.has-result .search-forward svg, .is-comparing .search-forward svg { width: 31px; }
.has-result .search-results, .is-comparing .search-results { position: absolute; right: 110px; bottom: 70px; left: 0; width: auto; max-height: 260px; margin: 0; }
.has-result .search-message, .is-comparing .search-message { position: absolute; bottom: -23px; left: 0; margin: 0; }

.compare-sky { z-index: 1; display: none; grid-template-columns: 1fr 1fr; overflow: hidden; }
.is-comparing .single-sky, .is-comparing .result, .is-comparing .bortle-machine { display: none; }
.is-comparing .compare-sky { display: grid; }
.compare-pane { position: relative; min-width: 0; overflow: hidden; }
.compare-pane canvas { width: 100%; height: 100%; }
.compare-caption { position: absolute; z-index: 5; right: 30px; bottom: 130px; left: 30px; padding: 15px 17px; border: 2px solid var(--cream); background: rgba(5,7,8,.88); box-shadow: 6px 6px 0 var(--shadow); }
.compare-role { display: block; margin-bottom: 7px; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 10px; font-weight: 900; letter-spacing: .12em; }
.compare-place, .compare-class { display: inline; font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: clamp(24px,2.3vw,36px); text-transform: uppercase; }
.compare-place::after { content: " / "; color: var(--orange); }
.compare-class { color: var(--orange); }
.compare-meaning { margin: 7px 0 0; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.compare-divider { position: absolute; z-index: 6; top: 0; bottom: 0; left: 50%; width: 2px; background: var(--cream); }
.compare-divider span { position: absolute; top: 50%; left: 50%; width: 34px; height: 34px; border: 2px solid var(--cream); background: var(--orange); box-shadow: 4px 4px 0 var(--shadow); transform: translate(-50%,-50%) rotate(45deg); }
.is-blending .compare-sky { display: block; }
.is-blending .compare-pane { position: absolute; inset: 0; }
.is-blending .compare-divider { display: none; }
.is-blending .compare-primary { z-index: 1; }
.is-blending .compare-secondary { z-index: 2; opacity: var(--blend); }
.is-blending .compare-caption { display: none; }
.blend-control { position: absolute; z-index: 32; left: 50%; bottom: 122px; width: min(380px,calc(100% - 60px)); padding: 11px; border: 2px solid var(--cream); background: var(--ink); box-shadow: 5px 5px 0 var(--shadow); transform: translateX(-50%); }
.blend-control label { display: block; margin-bottom: 7px; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 10px; font-weight: 900; letter-spacing: .08em; text-align: center; text-transform: uppercase; }
.blend-control input { width: 100%; accent-color: var(--orange); }

.footer { position: absolute; z-index: 31; bottom: 7px; left: 4vw; }
.attribution { padding: 5px 0; border: 0; background: transparent; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.method-dialog { width: min(560px,calc(100% - 32px)); max-height: calc(100svh - 32px); overflow-y: auto; padding: 36px; border: 3px solid var(--cream); border-radius: 0; background: var(--ink); color: var(--cream); box-shadow: 10px 10px 0 #000; }
.method-dialog::backdrop { background: rgba(0,0,0,.78); backdrop-filter: blur(5px); }
.method-dialog h2 { margin: 0 0 18px; font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: 42px; text-transform: uppercase; }
.method-dialog p { color: rgba(243,230,198,.76); font-size: 14px; line-height: 1.6; }
.method-dialog a { color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 10px; font-weight: 900; text-transform: uppercase; }
.dialog-close { position: absolute; top: 10px; right: 12px; width: 38px; height: 38px; border: 2px solid var(--cream); border-radius: 0; background: var(--orange); color: var(--ink); font-size: 27px; font-weight: 900; cursor: pointer; }

.bortle-dialog { width: 100vw; max-width: none; height: 100svh; max-height: none; margin: 0; padding: 0; border: 0; background: transparent; color: var(--cream); overflow: hidden; }
.bortle-dialog::backdrop { background: transparent; }
.is-learning > .topbar, .is-learning > .search-region, .is-learning > .result, .is-learning > .bortle-machine, .is-learning > .footer, .is-learning > .compare-sky, .is-learning > .blend-control { visibility: hidden; }
.learning-header { position: absolute; z-index: 2; top: 0; right: 0; left: 0; display: flex; align-items: flex-start; justify-content: space-between; padding: max(24px,env(safe-area-inset-top)) 34px 0; }
.learning-back { background: rgba(5,7,8,.9); }
.learning-layout { position: absolute; inset: 0; display: grid; grid-template-columns: minmax(0,42fr) minmax(0,58fr); align-items: center; gap: 3vw; padding: 100px 4vw 70px; }
.learning-copy h2 { margin: 0 0 22px; font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: clamp(70px,7vw,106px); line-height: .86; letter-spacing: -.02em; }
.learning-copy p { max-width: 620px; margin: 0; color: var(--cream); font-family: Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif; font-size: clamp(38px,4vw,62px); line-height: .96; text-transform: uppercase; }
.learning-copy p strong { color: var(--orange); font-weight: inherit; }
.learning-copy small { display: block; margin-top: 24px; color: var(--cream); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.class-explorer { align-self: center; min-width: 0; }
.explorer-numbers { position: relative; display: grid; grid-template-columns: repeat(9,1fr); gap: 7px; padding-bottom: 17px; border-bottom: 2px solid var(--cream); }
.explorer-numbers button { position: relative; z-index: 2; width: 50px; height: 50px; justify-self: center; border: 0; border-radius: 50%; background: rgba(5,7,8,.78); color: var(--cream); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 20px; font-weight: 900; cursor: pointer; }
.explorer-numbers button::after { content: ""; position: absolute; top: 50px; left: 50%; width: 2px; height: 16px; background: var(--cream); transform: translateX(-50%); }
.explorer-numbers button.is-active { background: var(--orange); color: var(--ink); box-shadow: 4px 4px 0 var(--shadow); transform: translateY(-4px); }
.explorer-numbers button:hover, .explorer-numbers button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.explorer-line { display: flex; align-items: center; justify-content: space-between; margin-top: 19px; color: var(--cyan); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.explorer-line i { flex: 1; height: 1px; margin: 0 18px; background: repeating-linear-gradient(90deg,var(--cyan) 0 7px,transparent 7px 11px); opacity: .45; }
.explorer-meaning { min-height: 52px; margin: 34px 0 0; color: var(--cream); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 17px; font-weight: 900; letter-spacing: .055em; text-align: center; }
.bortle-note { margin: 28px 0 0; color: var(--cream); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 10px; font-weight: 900; letter-spacing: .07em; text-align: center; }

.toast { position: absolute; z-index: 60; left: 50%; bottom: 25px; padding: 11px 15px; border: 2px solid var(--cream); background: var(--orange); color: var(--ink); box-shadow: 5px 5px 0 var(--shadow); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 9px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; opacity: 0; transform: translate(-50%,10px); transition: opacity .15s ease, transform .2s var(--ease); pointer-events: none; }
.toast.is-visible { opacity: 1; transform: translate(-50%,0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@keyframes pulse { to { opacity: .28; transform: scale(1.4); } }
@keyframes reveal { from { opacity: 0; transform: translateY(22px); filter: blur(7px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes place-swap { from { opacity: .2; transform: translateY(4px); } to { opacity: 1; transform: none; } }

@media (max-width: 1050px) and (min-width: 701px) {
  .is-home .search-stack { width: 78vw; }
  .intro h1 { font-size: 75px; }
  .result { width: 56vw; }
  .meaning { font-size: 65px; }
  .has-result .bortle-machine { width: 34vw; padding: 22px 20px 18px; }
  .machine-explainer { margin-bottom: 20px; }
  .explorer-numbers { gap: 3px; }
  .explorer-numbers button { width: 40px; height: 40px; font-size: 17px; }
  .explorer-numbers button::after { top: 40px; }
}

@media (max-height: 850px) and (min-width: 701px) {
  .is-home .search-stack { transform: translateY(-34%); }
  .intro { margin-bottom: 20px; }
  .intro h1 { font-size: clamp(62px,6.6vw,88px); }
  .search-form { height: 76px; }
  .result { top: 92px; bottom: 120px; overflow-y: auto; padding-right: 10px; scrollbar-width: thin; scrollbar-color: var(--cyan) transparent; }
  .meaning { font-size: clamp(52px,5vw,68px); }
  .detail { font-size: 15px; line-height: 1.42; }
  .drive, .darker { font-size: 11px; }
  .has-result .bortle-machine { top: 124px; }
  .has-result .search-form, .is-comparing .search-form { height: 54px; }
  .has-result .search-results, .is-comparing .search-results { bottom: 62px; }
}

@media (max-width: 700px) {
  .topbar { padding: max(17px,env(safe-area-inset-top)) 18px 0; }
  .brand, .learning-brand { font-size: 41px; }
  .actions { gap: 7px; }
  .text-button, .icon-button, .learning-back { min-height: 40px; padding: 0 10px; border-width: 1.5px; box-shadow: 3px 3px 0 var(--shadow); font-size: 9px; }
  .icon-button span { display: none; }

  .is-home .search-stack { top: 112px; right: 18px; left: 18px; width: auto; transform: none; }
  .intro { margin-bottom: 25px; }
  .intro h1 { max-width: 355px; font-size: clamp(56px,16vw,70px); line-height: .85; }
  .search-form { grid-template-columns: 1fr; grid-template-rows: 62px 60px; height: 126px; border-width: 2px; box-shadow: 6px 6px 0 var(--shadow); }
  .search-form input { padding: 0 16px; border-right: 0; border-bottom: 2px solid var(--ink); font-size: 14px; }
  .search-forward { border-top: 2px solid var(--ink); border-left: 0; font-size: 27px; }
  .search-forward svg { width: 29px; }
  .loading-dot { top: 10px; right: 10px; }
  .search-results { width: 100%; max-height: 190px; }
  .search-message { font-size: 9px; }
  .quick-places { flex-wrap: wrap; gap: 5px 9px; font-size: 8.5px; }
  .quick-places button { padding: 4px 0; }

  .result { top: 116px; right: 18px; bottom: 166px; left: 18px; width: auto; overflow-y: auto; padding: 0 3px 16px 0; scrollbar-width: thin; scrollbar-color: var(--cyan) transparent; }
  .place-label { margin-bottom: 10px; font-size: 11px; }
  .meaning { max-width: 100%; font-size: clamp(50px,14vw,61px); line-height: .86; }
  .result-meta { flex-wrap: wrap; gap: 8px; margin-top: 15px; }
  .bortle-readout { padding: 9px 10px; font-size: 10px; }
  .bortle-help { padding: 9px 10px; font-size: 9px; }
  .detail { margin-top: 13px; font-size: 13px; line-height: 1.45; }
  .drive, .darker { margin-top: 9px; font-size: 10px; line-height: 1.4; }
  .darker-action { margin-top: 12px; box-shadow: 5px 5px 0 var(--shadow); }
  .darker-destination { padding: 8px 10px; font-size: 9px; }
  .darker-cta { min-height: 50px; padding: 6px 11px; font-size: 25px; }
  .darker-cta svg { width: 28px; }
  .has-result .bortle-machine { display: none; }

  .has-result .search-stack, .is-comparing .search-stack { right: 18px; bottom: 43px; left: 18px; }
  .has-result .search-form, .is-comparing .search-form { grid-template-columns: minmax(0,1fr) 54px; grid-template-rows: 1fr; height: 58px; }
  .has-result .search-form input, .is-comparing .search-form input { border-right: 2px solid var(--ink); border-bottom: 0; font-size: 10px; }
  .has-result .search-forward, .is-comparing .search-forward { border-top: 0; border-left: 0; }
  .has-result .search-results, .is-comparing .search-results { right: 0; bottom: 66px; }
  .has-result .search-message, .is-comparing .search-message { bottom: -20px; }
  .footer { bottom: 3px; left: 18px; }
  .attribution { font-size: 7.5px; }

  .is-comparing .compare-sky { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
  .compare-divider { top: 50%; right: 0; bottom: auto; left: 0; width: auto; height: 2px; }
  .compare-caption { right: 15px; bottom: 83px; left: 15px; padding: 9px 11px; }
  .compare-secondary .compare-caption { top: 18px; bottom: auto; }
  .compare-place, .compare-class { font-size: 20px; }
  .compare-role { margin-bottom: 4px; font-size: 8px; }
  .compare-meaning { font-size: 8px; }
  .is-comparing .footer { display: none; }
  .blend-control { bottom: 109px; }

  .learning-header { padding: max(17px,env(safe-area-inset-top)) 18px 0; }
  .learning-back { max-width: 145px; }
  .learning-layout { display: block; padding: 112px 18px 32px; overflow-y: auto; }
  .learning-copy h2 { margin-bottom: 14px; font-size: 58px; }
  .learning-copy p { max-width: 350px; font-size: 35px; }
  .learning-copy small { margin-top: 14px; font-size: 9px; }
  .class-explorer { margin-top: 42px; }
  .explorer-numbers { gap: 2px; padding-bottom: 13px; }
  .explorer-numbers button { width: 34px; height: 34px; font-size: 13px; }
  .explorer-numbers button::after { top: 34px; height: 13px; }
  .explorer-line { margin-top: 15px; font-size: 8px; }
  .explorer-line i { margin: 0 8px; }
  .explorer-meaning { min-height: 38px; margin: 22px 0 0; font-size: 12px; }
  .bortle-note { margin-top: 18px; font-size: 8px; }
  .method-dialog { padding: 30px 24px; }
}

@media (max-width: 700px) and (max-height: 740px) {
  .is-home .search-stack { top: 88px; }
  .intro { margin-bottom: 18px; }
  .intro h1 { font-size: 48px; }
  .search-form { grid-template-rows: 54px 52px; height: 110px; }
  .quick-places { display: none; }
  .result { top: 92px; }
  .meaning { font-size: 45px; }
  .detail { font-size: 12px; }
  .learning-layout { padding-top: 86px; }
  .learning-copy h2 { font-size: 48px; }
  .learning-copy p { font-size: 29px; }
  .class-explorer { margin-top: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; transition-duration: 1ms !important; }
}