:root{
  --abyssal:#304082;
  --dead-sea:#74e1f1;
  --everlight:#fbfffe;
  --actinic:#ff6be9;
  --quinacridone:#ab3571;
  --temptress:#5f1535;
  --ink:#25366d;
  --console:#172458;
  --line:#b9cedc;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--abyssal);
  font-synthesis:none;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  isolation:isolate;
  background:#435bb0;
}
body::before{
  content:"";
  position:fixed;
  z-index:-1;
  inset:0;
  background:
    linear-gradient(105deg,#17245736,#1724571f),
    url("layered-clay-colour-studio.webp") center center / cover no-repeat;
  pointer-events:none;
}
body.background-night::before{
  background:linear-gradient(105deg,#9ec9f03d,#7ba5e035),url("background-original.webp") center center / cover no-repeat;
}
body.background-paper::before{
  background:linear-gradient(105deg,#142953b8 0%,#152a55a3 54%,#172451b9 100%),url("paper-cosmos.webp") center center / cover no-repeat;
}
body.background-texture::before{
  background:linear-gradient(105deg,#142953a8,#172451ae),url("background-texture.webp") center center / cover no-repeat;
}
body.background-nebula::before{
  background:linear-gradient(105deg,#10244fc7,#172451b2),url("background-nebula.webp") center center / cover no-repeat;
}
[hidden]{display:none!important}
button,textarea,input,select{font:inherit}
button{cursor:pointer}
button:focus-visible,textarea:focus-visible,input:focus-visible,select:focus-visible,[contenteditable]:focus-visible{
  outline:3px solid var(--abyssal);
  outline-offset:3px;
  box-shadow:0 0 0 6px #74e1f1bd;
}
.shell{max-width:1440px;margin:auto;padding:25px 28px 58px}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid #b4e6f167}
.brand{display:flex;align-items:center;gap:12px;color:var(--everlight);text-decoration:none;font-weight:800;letter-spacing:-.025em}
.mark{width:42px;height:42px;display:grid;place-items:center;border:1px solid #74e1f1a6;border-radius:10px;color:var(--dead-sea);background:#1b2a63;box-shadow:0 5px 12px #0f184477,inset 1px 1px #ffffff50;font-family:Georgia,serif;font-size:27px}
.top-meta{display:flex;align-items:center;gap:12px;color:#dfeeff;font-size:13px}
.top-meta::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--dead-sea);box-shadow:0 0 12px var(--dead-sea)}
.heading{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(260px,.85fr);align-items:end;gap:18px 42px;margin:34px 0 30px}
.eyebrow{grid-column:1/-1;color:var(--dead-sea);font:800 12px/1.3 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.16em;text-transform:uppercase}
h1{margin:0;color:var(--everlight);font-size:clamp(36px,4.2vw,59px);font-weight:800;letter-spacing:-.055em;line-height:1.05;text-shadow:0 2px 10px #0b1739d9}
.intro{max-width:470px;margin:0 0 3px;color:#f0f6ff;font-size:16px;line-height:1.6;text-shadow:0 1px 5px #0b1739c9}
.background-choices{display:flex;align-items:center;justify-content:space-between;gap:19px;padding:14px 17px;margin:-8px 0 22px;border:1px solid #74e1f19c;border-radius:14px;color:var(--everlight);background:#142451e8;box-shadow:0 9px 22px #0b12398a}
.preview-heading{display:grid;gap:3px;min-width:175px}.preview-heading strong{font:800 14px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;letter-spacing:.04em}.preview-heading span{font-size:13px;line-height:1.35;color:#dce9fb}
.background-options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;flex:1;max-width:900px}
.background-options button{display:flex;align-items:center;gap:10px;min-width:0;padding:6px 10px 6px 6px;border:1px solid #7895c2;border-radius:9px;color:#e9f5ff;background:#2a3b77;text-align:left;font-size:13px;font-weight:750;line-height:1.25}
.background-options button:hover{border-color:var(--dead-sea);background:#394d88}.background-options button[aria-pressed="true"]{border-color:var(--dead-sea);box-shadow:0 0 0 2px #74e1f18c;background:#354989}
.background-swatch{flex:none;width:42px;height:38px;border-radius:6px;border:1px solid #ffffff80;background-size:cover;background-position:center}
.background-swatch.original{background-image:url("layered-clay-colour-studio.webp")}.background-swatch.night{background-image:url("background-original.webp")}.background-swatch.texture{background-image:url("background-texture.webp")}.background-swatch.nebula{background-image:url("background-nebula.webp")}.background-swatch.paper{background-image:url("paper-cosmos.webp")}
.layout{display:grid;grid-template-columns:205px minmax(0,1.16fr) minmax(330px,.88fr);gap:18px;align-items:start}
.panel{position:relative;min-width:0;border:2px solid #d2e7ed;border-radius:18px;background:var(--everlight);box-shadow:0 19px 35px #10194b7d,0 5px 10px #10194b46,inset 1px 1px #fff;overflow:hidden}
.panel::before{content:"";position:absolute;right:10px;top:10px;width:14px;height:14px;border-top:2px solid #74e1f1;border-right:2px solid #74e1f1;opacity:.85;pointer-events:none}
.panel::after{content:"";position:absolute;left:0;top:0;width:100%;height:5px;background:linear-gradient(90deg,var(--dead-sea) 0 52%,var(--actinic) 52% 69%,transparent 69%);pointer-events:none}
.body{padding:26px 25px 27px}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:17px;margin:0 0 22px;border-bottom:1px solid #c6dbe6}
.panel-title h2{font-size:19px;letter-spacing:-.035em;margin:0;color:var(--abyssal)}
.step{color:var(--quinacridone);font:800 11px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}
.modes-panel{position:sticky;top:20px;background:linear-gradient(150deg,#344681,#24346c);border-color:#9bdef0;color:var(--everlight)}
.modes-panel::after{background:linear-gradient(90deg,var(--actinic),var(--dead-sea))}
.modes-panel .body{padding:23px 15px}
.modes-panel .panel-title{display:block;border-color:#85a0cc74;margin-bottom:16px}
.modes-panel .panel-title h2{color:var(--everlight);font:800 15px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;letter-spacing:.06em}
.modes-panel .step{display:block;margin-top:8px;color:var(--dead-sea)}
.modes{display:grid;gap:10px}
.mode{display:flex;flex-direction:column;gap:6px;min-height:73px;width:100%;padding:12px 13px;text-align:left;border:1px solid #7896ba;border-radius:11px;color:#eef8ff;background:#344580;box-shadow:0 4px 9px #10194382,inset 1px 1px #ffffff28;font-size:14px;line-height:1.3;font-weight:750;transition:transform .18s,box-shadow .18s,background .18s}
.mode-index{font:800 11px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.09em;opacity:.78}
.mode:hover{transform:translateY(-2px);background:#455991;box-shadow:0 7px 13px #1019439c}
.mode[aria-pressed="true"]{color:var(--abyssal);background:var(--dead-sea);border-color:#a8f5fa;box-shadow:inset 2px 3px 6px #275e874c,0 1px 2px #ffffff60}
.mode:active{transform:translateY(1px);box-shadow:inset 2px 3px 6px #1019438c}
.panel-builder{background:linear-gradient(145deg,#fbfffe,#f1f8fb)}
.preset-fields{display:grid;gap:16px;margin-top:18px}
.preset-field textarea{min-height:84px}
.preset-description{margin-top:12px}
.preset-tip{color:#52617d;font-size:13px;line-height:1.5;margin:16px 0 0}
.field{display:block;color:var(--abyssal);font-weight:750;font-size:15px;margin:0 0 9px}
.hint{color:#52617d;font-size:14px;line-height:1.5;margin:5px 0 12px}
textarea,input,select{width:100%;min-height:49px;padding:13px 15px;color:var(--abyssal);background:#e9f5fa;border:1px solid #8fb1c5;border-radius:10px;box-shadow:inset 2px 3px 6px #30408220,0 1px #fff}
textarea{resize:vertical;min-height:150px;line-height:1.55}
textarea::placeholder,input::placeholder{color:#53647c;opacity:1}
textarea:focus,input:focus,select:focus{background:#f5fcff;border-color:var(--abyssal);box-shadow:inset 1px 2px 4px #30408224,0 0 0 4px #74e1f17d;outline:2px solid var(--abyssal);outline-offset:1px}
.section{margin-top:23px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:9px 12px;border:1px solid #fff;border-radius:9px;color:var(--abyssal);background:#eaf2fa;box-shadow:0 3px 6px #3040822e,inset 1px 1px #fff;font-size:14px;line-height:1.3;transition:transform .18s,box-shadow .18s}
.chip:hover{transform:translateY(-2px);box-shadow:0 6px 10px #3040823c}
.chip[aria-pressed="true"]{color:var(--temptress);background:var(--actinic);border-color:#ed59d4;box-shadow:inset 2px 2px 5px #9e235c5c}
.smallfield{min-height:86px}
.actions{display:flex;align-items:center;gap:13px;margin-top:26px}
.primary{min-height:49px;padding:12px 18px;border:1px solid #52c8dc;border-radius:10px;color:var(--abyssal);background:var(--dead-sea);font-weight:800;box-shadow:0 5px 10px #244f8b57,inset 1px 1px #d7faff;transition:transform .18s,box-shadow .18s,background .18s}
.primary:hover{background:#96ecf6;transform:translateY(-2px);box-shadow:0 8px 14px #244f8b6e}
.primary:active,.secondary:active{transform:translateY(1px);box-shadow:inset 2px 3px 7px #3040825c}
.subtle{padding:10px;border:0;background:transparent;color:var(--quinacridone);font-weight:750}
.subtle:hover{text-decoration:underline}
.error{color:#a3245f;font-size:14px;min-height:20px;margin:9px 0 0}
.result{position:sticky;top:20px;background:linear-gradient(155deg,#344785,#26366f);border-color:#a7dbea;color:var(--everlight);box-shadow:0 23px 43px #071239b8,0 5px 11px #10194b63}
.result::after{background:linear-gradient(90deg,var(--dead-sea),var(--actinic))}
.result .panel-title{border-color:#7592bd80}
.result .panel-title h2{color:var(--everlight)}
.result .step{color:var(--dead-sea)}
.empty{display:flex;align-items:center;justify-content:center;min-height:220px;padding:28px 19px;text-align:center;line-height:1.6;color:#e2efff;background:#12204e;border:1px solid #7895c2;border-radius:10px;box-shadow:inset 3px 4px 10px #0913379a,inset -1px -1px #ffffff25}
.empty[hidden],.output[hidden]{display:none}
.output{min-height:220px;max-height:65vh;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;padding:18px;color:var(--abyssal);background:var(--everlight);border:1px solid #b5e7f0;border-radius:10px;box-shadow:inset 2px 3px 8px #30408223;font-size:15px;line-height:1.65}
.result-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:17px}
.secondary{padding:10px 13px;border:1px solid #96dfe8;border-radius:9px;color:var(--abyssal);background:#d7f5f9;box-shadow:0 3px 7px #090f3180,inset 1px 1px #fff;font-size:14px;font-weight:750;transition:transform .18s,box-shadow .18s}
.secondary:not(:disabled):hover{transform:translateY(-2px);background:var(--dead-sea);box-shadow:0 6px 11px #090f318f}
.secondary:disabled{opacity:.5;cursor:default;box-shadow:none}
.note{color:#dce9fb;font-size:13px;line-height:1.55;margin:18px 0 0}
.footer{color:#dce5f7;font-size:13px;margin-top:30px}
@media(max-width:1170px){
  .background-choices{display:block}.preview-heading{margin-bottom:12px}.background-options{max-width:none}
  .layout{grid-template-columns:minmax(0,1.1fr) minmax(330px,.9fr)}
  .modes-panel{grid-column:1/-1;position:static}
  .modes-panel .body{display:flex;align-items:center;gap:20px;padding:17px 20px}
  .modes-panel .panel-title{min-width:125px;margin:0;padding:0;border:0}
  .modes{grid-template-columns:repeat(4,minmax(0,1fr));flex:1}
  .mode{min-height:60px}
}
@media(max-width:800px){
  .shell{padding:18px 17px 45px}
  .background-options{grid-template-columns:repeat(2,minmax(0,1fr))}
  .heading{grid-template-columns:1fr;gap:12px;margin:28px 0 24px}
  .eyebrow{grid-column:auto}
  .intro{max-width:680px}
  .layout{grid-template-columns:1fr}
  .modes-panel{grid-column:auto}
  .modes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .result{position:static}
}
@media(max-width:570px){
  .background-options{grid-template-columns:1fr}.background-options button{min-height:49px}
  .top-meta{display:none}
  h1{font-size:clamp(34px,9vw,48px)}
  .modes-panel .body{display:block}
  .modes-panel .panel-title{margin-bottom:14px}
  .modes{grid-template-columns:1fr 1fr;gap:8px}
  .mode{min-height:47px;flex-direction:row;align-items:center;gap:12px}
  .body{padding:22px 19px}
  .row{grid-template-columns:1fr}
  .panel{border-radius:14px}
  .actions{flex-wrap:wrap}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
}