/* Interactive scenes of the home page (scale, you, lab, map). They have no photo: the global starfield shows through. */

.counter #counter-total { margin: 0; color: inherit; }

.scene.s-tool { min-height: 0; padding: clamp(110px, 16svh, 170px) 0 clamp(70px, 12svh, 130px); }
.scene.s-tool,
.s-tool + .scene { margin-top: 0; }

.s-tool h2 { max-width: 14ch; font-size: clamp(2.2rem, 4.8vw, 4.8rem); }
.s-tool .lede { max-width: 46ch; }

.panel {
    margin-top: clamp(28px, 5svh, 48px);
    border: 1px solid rgba(143, 156, 186, .2);
    background: rgba(4, 8, 18, .62);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.chip {
    padding: 10px 18px;
    border: 1px solid rgba(143, 156, 186, .35);
    background: transparent;
    color: var(--mute);
    font: 400 11px/1 var(--mono);
    letter-spacing: .2em;
    text-transform: uppercase;
    cursor: pointer;
    transition: color .3s, border-color .3s, background .3s;
}

.chip:hover, .chip:focus-visible { color: var(--ink); border-color: var(--ink); }
.chip.is-on { color: var(--gold); border-color: var(--gold); background: rgba(245, 184, 92, .08); }

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 28px;
    background: transparent;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track { height: 2px; background: rgba(143, 156, 186, .35); }
input[type="range"]::-moz-range-track { height: 2px; background: rgba(143, 156, 186, .35); }
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    margin-top: -8px;
    border-radius: 50%;
    border: 0;
    background: var(--gold);
    box-shadow: 0 0 16px rgba(245, 184, 92, .8);
}
input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 0;
    background: var(--gold);
    box-shadow: 0 0 16px rgba(245, 184, 92, .8);
}

/* ---------- 03 THE SCALE ---------- */

.scale { display: flex; flex-direction: column; overflow: hidden; }

.scale-read { display: grid; gap: 8px; padding: clamp(24px, 4vw, 48px) clamp(20px, 4vw, 48px) 8px; min-height: 230px; align-content: start; }
.scale-exp { font-size: clamp(2.6rem, 7vw, 6rem); font-weight: 300; letter-spacing: -.04em; line-height: 1; color: var(--gold); }
.scale-exp sup { font-size: .5em; vertical-align: top; position: relative; top: -.1em; }
.scale-size { font: 400 12px/1.4 var(--mono); letter-spacing: .24em; text-transform: uppercase; color: var(--mute); }
.scale-read h3 { margin-top: 18px; font-size: clamp(1.5rem, 3vw, 2.4rem); font-weight: 400; letter-spacing: -.02em; line-height: 1.1; }
.scale-fact { max-width: 56ch; color: #b9c4de; }
.scale-rel { font: 400 11px/1.5 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--blue); }

.scale-ruler {
    order: 3;
    position: relative;
    height: 110px;
    overflow: hidden;
    border-top: 1px solid rgba(143, 156, 186, .14);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
}

.scale-track { position: absolute; left: 0; top: 0; height: 100%; will-change: transform; }

.tick { position: absolute; top: 46px; width: 1px; height: 10px; background: rgba(143, 156, 186, .4); }
.tick.big { height: 18px; top: 38px; background: rgba(143, 156, 186, .7); }
.tick.big::after {
    content: attr(data-l);
    position: absolute;
    top: 24px;
    left: 0;
    transform: translateX(-50%);
    font: 400 10px/1 var(--mono);
    color: var(--mute);
    white-space: nowrap;
}

.mark-obj { position: absolute; top: 10px; width: 1px; height: 28px; background: var(--blue); opacity: .7; }
.mark-obj::before { content: ""; position: absolute; top: -3px; left: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 10px var(--blue); }
.mark-obj.near { background: var(--gold); opacity: 1; }
.mark-obj.near::before { background: var(--gold); box-shadow: 0 0 14px var(--gold); }

.scale-needle { position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: linear-gradient(to bottom, var(--gold), transparent); }

.scale-ctl { order: 2; display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center; padding: 14px clamp(20px, 4vw, 48px) 18px; }

/* ---------- 04 YOU ---------- */

.you-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px 22px;
    width: fit-content;
    max-width: 100%;
    padding: 18px clamp(18px, 3vw, 30px);
}

.you-form label { font: 400 11px/1 var(--mono); letter-spacing: .24em; text-transform: uppercase; color: var(--mute); }

.you-form input {
    padding: 12px 14px;
    border: 1px solid rgba(143, 156, 186, .35);
    background: rgba(2, 4, 10, .6);
    color: var(--ink);
    font: 400 15px var(--mono);
    color-scheme: dark;
}

.you-form .cta { margin-top: 0; padding: 14px 26px; cursor: pointer; }

.you-out { margin-top: clamp(28px, 5svh, 52px); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 0; background: rgba(143, 156, 186, .16); border: 1px solid rgba(143, 156, 186, .16); }
.stat { display: flex; flex-direction: column-reverse; justify-content: flex-end; gap: 10px; margin: 0; padding: clamp(20px, 3vw, 34px); background: rgba(4, 8, 18, .78); }
.stat dd { margin: 0; font-size: clamp(1.5rem, 2.5vw, 2.5rem); font-weight: 300; letter-spacing: -.03em; line-height: 1; color: var(--gold); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.stat:nth-child(even) dd { color: var(--blue); }
.stat dt { font: 400 11px/1.5 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); }

.stats-note { max-width: 70ch; margin: 22px 0 18px; font-size: .85rem; color: var(--mute); }

/* ---------- 07 THE LAB ---------- */

.lab { padding: clamp(14px, 2.4vw, 28px); }
.lab-tabs { display: flex; gap: 8px; margin-bottom: 16px; }

#lab-canvas {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 8;
    background: #01030a;
    border: 1px solid rgba(143, 156, 186, .14);
    touch-action: pan-y;
}

#lab-canvas.is-julia { cursor: crosshair; touch-action: none; }

.lab-ctl { display: grid; gap: 12px; padding-top: 16px; }
.lab-pane { display: grid; gap: 10px; }
.lab-pane[hidden] { display: none; }
.lab-pane label { font: 400 11px/1 var(--mono); letter-spacing: .24em; text-transform: uppercase; color: var(--mute); }
.lab-pane output { text-transform: none; margin-left: 10px; color: var(--gold); font-size: 14px; letter-spacing: .08em; }
.presets { display: flex; flex-wrap: wrap; gap: 8px; }
.lab-note { max-width: 70ch; color: #b9c4de; font-size: .95rem; min-height: 3em; }
.julia-hint { color: var(--mute); font-size: .9rem; }

/* ---------- 09 THE MAP ---------- */

.s-map h2 { max-width: 12ch; }

.constellation {
    position: relative;
    margin-top: clamp(30px, 6svh, 64px);
    aspect-ratio: 16 / 5.4;
    min-height: 300px;
}

.constellation svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.constellation polyline { fill: none; stroke: rgba(143, 156, 186, .35); stroke-width: 1; stroke-dasharray: 3 6; vector-effect: non-scaling-stroke; }

.star {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: clamp(120px, 14vw, 210px);
    translate: -50% -50%;
    display: grid;
    justify-items: center;
    gap: 6px;
    text-align: center;
}

.orb {
    position: relative;
    width: clamp(62px, 7.4vw, 108px);
    aspect-ratio: 1;
    margin-bottom: 8px;
    border-radius: 50%;
    overflow: hidden;
    border: 1px solid var(--c);
    box-shadow: 0 0 30px -4px var(--c), inset 0 0 22px rgba(2, 4, 10, .6);
    transition: transform .6s var(--ease), box-shadow .6s var(--ease);
}

.orb img { width: 100%; height: 100%; object-fit: cover; }
.star strong { text-shadow: 0 0 10px #02040a, 0 0 18px #02040a; font-size: clamp(.9rem, 1.3vw, 1.2rem); font-weight: 500; letter-spacing: -.01em; line-height: 1.15; }
.star em { font-style: normal; font-size: .8rem; line-height: 1.35; color: #9aa7c6; opacity: 0; transform: translateY(-4px); transition: opacity .4s, transform .4s var(--ease); }
.star:hover .orb, .star:focus-visible .orb { transform: scale(1.14); box-shadow: 0 0 60px 2px var(--c), inset 0 0 22px rgba(2, 4, 10, .5); }
.star:hover strong, .star:focus-visible strong { color: var(--c); }
.star:hover em, .star:focus-visible em { opacity: 1; transform: none; }

.map-links { display: flex; flex-wrap: wrap; gap: 14px 36px; margin-top: clamp(30px, 6svh, 60px); font: 400 12px/1 var(--mono); letter-spacing: .24em; text-transform: uppercase; }
.map-links a { color: var(--gold); padding: 8px 0; border-bottom: 1px solid transparent; }
.map-links a:hover { border-bottom-color: var(--gold); }

.s-map .foot { margin-top: clamp(70px, 14svh, 140px); }

/* ---------- small screens ---------- */

@media (max-width: 900px) {
    .stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
    .scene.s-tool { padding-bottom: 110px; }
    .chip { padding: 13px 18px; }
    .scale-ctl { grid-template-columns: 1fr; gap: 8px; }
    .scale-read { min-height: 250px; }
    #lab-canvas { aspect-ratio: 4 / 3.4; }

    .constellation { aspect-ratio: auto; min-height: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 34px 14px; }
    .constellation svg { display: none; }
    .star { position: static; translate: none; width: auto; }
    .star em { opacity: 1; transform: none; font-size: .76rem; }
    .orb { width: min(36vw, 120px); }
}

@media (max-width: 420px) {
    .stats { grid-template-columns: 1fr; }
}

/* language switcher: see nerdicate.css */
.bar .counter { margin-left: clamp(18px, 3vw, 40px); }

.map-links small { align-self: center; color: var(--mute); font: 400 11px/1 var(--mono); letter-spacing: .12em; text-transform: none; }


/* longer words in the translations: keep headlines inside the screen on phones */
@media (max-width: 720px) {
    html:not([lang="en"]) .s-cosmos h1 { font-size: clamp(2.1rem, 10.4vw, 4rem); max-width: none; }
    html:not([lang="en"]) h2 { font-size: clamp(1.9rem, 9.4vw, 3rem); overflow-wrap: break-word; }
    html:not([lang="en"]) .s-tool h2 { font-size: clamp(1.9rem, 9.4vw, 3rem); }
}