:root{color-scheme:dark;font-family:Helvetica Neue,Helvetica,Arial,sans-serif;background:#020405;color:#e9fff8;--line: rgba(172, 238, 217, .22);--muted: rgba(206, 242, 231, .54);--bright: #caffed;--bright-rgb: 202, 255, 237;--stage-background: #020405}*{box-sizing:border-box}html,body{width:100%;min-height:100%;margin:0}body{overflow:hidden;background:#020405}button,input{font:inherit}.terrain-stage{position:relative;min-height:100vh;min-height:100svh;overflow:hidden;isolation:isolate;background:var(--stage-background);transition:background-color .5s ease}.terrain-stage[data-scheme=ultraviolet]{--line: rgba(215, 187, 255, .22);--muted: rgba(223, 204, 248, .56);--bright: #ead7ff;--bright-rgb: 234, 215, 255;--stage-background: #05020a}.terrain-stage[data-scheme=ember]{--line: rgba(255, 186, 125, .23);--muted: rgba(244, 203, 167, .56);--bright: #ffd8ad;--bright-rgb: 255, 216, 173;--stage-background: #080302}.terrain-stage[data-scheme=sonar]{--line: rgba(119, 217, 255, .22);--muted: rgba(185, 225, 241, .56);--bright: #c5efff;--bright-rgb: 197, 239, 255;--stage-background: #010508}.terrain-stage[data-scheme=acid]{--line: rgba(212, 255, 103, .2);--muted: rgba(222, 238, 180, .54);--bright: #eaffb5;--bright-rgb: 234, 255, 181;--stage-background: #030501}.terrain-stage:before{content:"";position:absolute;z-index:1;top:0;right:0;bottom:0;left:0;pointer-events:none;background:linear-gradient(90deg,rgba(1,4,4,.82),transparent 24%,transparent 78%,rgba(1,4,4,.52)),radial-gradient(circle at 55% 48%,transparent 15%,rgba(0,2,2,.18) 66%,rgba(0,1,1,.74) 100%)}.terrain-stage:after{content:"";position:absolute;z-index:2;top:0;right:0;bottom:0;left:0;opacity:.13;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.36'/%3E%3C/svg%3E");mix-blend-mode:soft-light}canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block}.masthead{position:absolute;z-index:3;top:clamp(1.5rem,4vw,3.5rem);left:clamp(1.5rem,4vw,4rem)}.back-link{display:inline-flex;align-items:center;gap:.7rem;color:var(--muted);font-size:.64rem;font-weight:600;letter-spacing:.18em;text-decoration:none;text-transform:uppercase;transition:color .18s ease}.back-link:hover,.back-link:focus-visible{color:var(--bright)}.back-link:focus-visible,button:focus-visible,input:focus-visible{outline:1px solid var(--bright);outline-offset:.3rem}.title-block{margin-top:clamp(2.5rem,7vh,5.5rem)}.kicker{display:flex;justify-content:space-between;width:min(16rem,65vw);margin:0 0 1.1rem;color:var(--muted);font:500 .58rem/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.16em;text-transform:uppercase}h1{margin:0;color:rgba(var(--bright-rgb),.95);font-size:clamp(2.2rem,4.8vw,5.2rem);font-weight:300;line-height:.88;letter-spacing:-.065em;text-transform:lowercase;text-shadow:0 0 2rem rgba(122,255,213,.1)}.palette-picker{position:absolute;z-index:4;top:43%;right:clamp(1.5rem,4vw,4rem);display:grid;gap:.75rem;margin:0;padding:0;border:0}.palette-picker legend{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.palette-picker label{position:relative;display:block;cursor:pointer}.palette-picker input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.palette-picker span{width:.72rem;height:.72rem;display:block;overflow:hidden;border:1px solid color-mix(in srgb,var(--swatch) 72%,transparent);border-radius:50%;background:color-mix(in srgb,var(--swatch) 24%,transparent);color:transparent;box-shadow:0 0 0 transparent;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease}.palette-picker label:hover span{transform:scale(1.25);background:var(--swatch)}.palette-picker input:focus-visible+span{outline:1px solid var(--swatch);outline-offset:.3rem}.palette-picker input:checked+span{background:var(--swatch);box-shadow:0 0 .8rem color-mix(in srgb,var(--swatch) 65%,transparent);transform:scale(1.25)}.elevation-readout{position:absolute;z-index:3;top:clamp(1.8rem,4vw,3.7rem);right:clamp(1.5rem,4vw,4rem);width:clamp(8rem,14vw,12rem);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.readout-label{display:block;color:var(--muted);font-size:.55rem;letter-spacing:.16em;text-transform:uppercase}.elevation-readout strong{display:block;margin:.55rem 0 .85rem;font-size:clamp(1.4rem,2.5vw,2.5rem);font-weight:300;letter-spacing:-.06em}.readout-track{display:block;height:1px;background:#b6efdd38}.readout-track i{display:block;width:0;height:100%;background:var(--bright);box-shadow:0 0 .7rem #72ffd1}.readout-range{display:flex;justify-content:space-between;margin-top:.45rem;color:#cef2e759;font-size:.5rem;font-style:normal;letter-spacing:.1em;text-transform:uppercase}.readout-range i{font-style:normal}.controls{position:absolute;z-index:3;right:clamp(1.5rem,4vw,4rem);bottom:clamp(2.3rem,5vw,4rem);left:clamp(1.5rem,4vw,4rem);display:grid;grid-template-columns:auto repeat(5,minmax(6rem,1fr));align-items:end;gap:clamp(.9rem,2.2vw,2.4rem);padding-top:1rem;border-top:1px solid var(--line);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.control-actions{display:flex;align-items:center;gap:.75rem;min-width:max-content}button{border:0;color:var(--muted);background:transparent;cursor:pointer}.icon-button{width:2.25rem;height:2.25rem;padding:0;border:1px solid rgba(190,246,228,.28);border-radius:50%;font:500 .65rem/1 ui-monospace,monospace}.text-button{padding:.6rem 0;font-size:.57rem;letter-spacing:.14em;text-transform:uppercase}button:hover{color:var(--bright)}.control{display:grid;gap:.65rem;min-width:0;color:var(--muted);font:500 .53rem/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.1em;text-transform:uppercase}.control span{display:flex;justify-content:space-between;gap:.5rem;white-space:nowrap}.control output{color:#dafff3db}input[type=range]{width:100%;height:1px;margin:0;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:#bef6e438;cursor:pointer}input[type=range]::-webkit-slider-thumb{width:6px;height:6px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;border-radius:50%;background:var(--bright);box-shadow:0 0 .65rem #72ffd1bf}input[type=range]::-moz-range-thumb{width:6px;height:6px;border:0;border-radius:50%;background:var(--bright);box-shadow:0 0 .65rem #72ffd1bf}.field-note{position:absolute;z-index:3;bottom:.75rem;right:clamp(1.5rem,4vw,4rem);left:clamp(1.5rem,4vw,4rem);display:flex;justify-content:space-between;color:#cdefe442;font:500 .48rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;text-transform:uppercase}@media(max-width:900px){.controls{grid-template-columns:repeat(3,1fr)}.control-actions{grid-column:1 / -1}}@media(max-width:560px){.masthead{top:1.25rem;left:1.25rem}.title-block{margin-top:2.2rem}.elevation-readout{top:1.4rem;right:1.25rem;width:7rem}.palette-picker{top:8rem;right:1.25rem;gap:.68rem}.controls{right:1.25rem;bottom:2.1rem;left:1.25rem;grid-template-columns:repeat(2,1fr);gap:.9rem 1.4rem;padding-top:.8rem}.control-actions{grid-column:1 / -1}.control:nth-of-type(5){display:none}.field-note{right:1.25rem;left:1.25rem}.field-note span:last-child{display:none}}@media(prefers-reduced-motion:reduce){.terrain-stage,.back-link,button,.palette-picker span{transition:none}}