:root{--bg:#EDF0EF;--surface:#F9FAFA;--ink:#1B2325;--muted:#5C696B;--line:#D4DBDA;--accent:#16707A;--accent-ink:#FFFFFF;--accent-soft:#D6EBEC;--stage:#E2E6E4;--stage-dot:#CBD2D0;--glass-tint:rgba(170,215,220,.38);--glass-rim:rgba(255,255,255,.85);--glass-shadow:rgba(20,40,45,.35);--good:#2C7A4E;--warn:#A8661A;--bad:#AE3D2C;--f-display:"Bricolage Grotesque","Avenir Next","Segoe UI",sans-serif;--f-body:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;--f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace}@media (prefers-color-scheme:dark){:root{--bg:#111617;--surface:#192021;--ink:#E5ECEB;--muted:#93A2A2;--line:#2A3436;--accent:#4DB2BB;--accent-ink:#0C1A1C;--accent-soft:#16363A;--stage:#0C1112;--stage-dot:#1D2628;--glass-tint:rgba(130,195,200,.16);--glass-rim:rgba(200,240,245,.45);--glass-shadow:rgba(0,0,0,.7);--good:#5DBB82;--warn:#E0A04E;--bad:#E57D69;color-scheme:dark}}*,:after,:before{box-sizing:border-box}body,html{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 var(--f-body)}[hidden]{display:none!important}a{color:var(--accent)}.wrap{padding-inline:max(16px,env(safe-area-inset-left,0px))}.topbar{gap:12px;flex-wrap:wrap;padding-block:14px}.brand,.topbar{display:flex;align-items:center}.brand{font-family:var(--f-display);font-weight:700;font-size:20px;letter-spacing:-.01em;gap:10px;color:var(--ink);text-decoration:none}.mark{width:22px;height:22px;border-radius:6px;background:linear-gradient(135deg,var(--accent),var(--accent-soft));box-shadow:inset 0 0 0 1.5px var(--glass-rim)}.spacer{flex:1 1}.who{color:var(--muted);font-size:13px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:10px;padding:8px 12px;font:500 13px var(--f-body);cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn.primary,.btn:hover{border-color:var(--accent)}.btn.primary{background:var(--accent);color:var(--accent-ink)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.signin{min-height:100%;display:grid;place-items:center;padding:32px 16px}.signin-card{width:min(420px,100%);background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:32px 28px;display:flex;flex-direction:column;gap:16px}.signin-card h1{font-family:var(--f-display);font-size:28px;line-height:1.15;margin:0;text-wrap:balance}.signin-card 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var(--line);border-radius:14px;padding:32px;text-align:center;color:var(--muted);display:flex;flex-direction:column;gap:12px;align-items:center}.studio{height:100%;display:grid;grid-template-rows:auto minmax(0,1fr);padding-bottom:14px}.studio main{display:grid;grid-template-columns:minmax(0,1fr) 340px;grid-gap:14px;gap:14px;min-height:0}.stage-wrap{position:relative;border-radius:14px;background-color:var(--stage);background-image:radial-gradient(var(--stage-dot) 1.2px,transparent 1.4px);background-size:18px 18px;overflow:hidden;min-height:380px;outline:none;touch-action:none}.stage-wrap:focus-visible{box-shadow:0 0 0 2px var(--accent)}.stage-wrap.dragover{box-shadow:inset 0 0 0 3px var(--accent)}.stage{position:absolute;inset:0}.stage-hint{right:12px;bottom:10px;font-size:12px;color:var(--muted);text-align:right}.stage-empty,.stage-hint{position:absolute;pointer-events:none}.stage-empty{inset:0;display:grid;place-items:center}.stage-empty div{border:1px solid var(--line);border-radius:12px;padding:14px 18px;color:var(--muted);text-align:center}.panel,.stage-empty div{background:var(--surface)}.panel{border:1px solid var(--line);border-radius:14px;overflow-y:auto;min-height:0}.panel,.panel section{display:flex;flex-direction:column}.panel section{padding:16px 18px;border-bottom:1px solid var(--line);gap:10px}.panel section:last-child{border-bottom:0}.panel h2{margin:0;font-family:var(--f-mono);font-weight:500;font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.name-input{width:100%;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:10px;padding:8px 10px;font:500 14px var(--f-body)}.shapes{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:8px;gap:8px}.shape-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:10px;padding:10px 6px 8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:6px;font:500 12px var(--f-body)}.shape-btn .ico{height:30px;display:grid;place-items:center}.shape-btn .ico i{display:block;border:1.5px solid;border-radius:2px;opacity:.75}.shape-btn[aria-pressed=true]{border-color:var(--accent);background:var(--accent-soft)}.shape-btn[aria-pressed=true] .ico i{border-color:var(--accent);opacity:1}.seg{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:10px;overflow:hidden}.seg button{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;background:transparent;color:var(--ink);padding:8px;font:500 13px var(--f-body);cursor:pointer}.seg button[aria-pressed=true]{background:var(--accent);color:var(--accent-ink)}.seg button:disabled{color:var(--muted);cursor:not-allowed;opacity:.6}.row{display:flex;gap:8px;flex-wrap:wrap}.row .btn{flex:1 1;min-width:0}.file-name{font-family:var(--f-mono);font-size:12px;color:var(--muted);overflow-wrap:anywhere}.ctl{display:grid;grid-template-columns:70px minmax(0,1fr) 54px;align-items:center;grid-gap:10px;gap:10px}.ctl output{font-family:var(--f-mono);font-size:12px;text-align:right}input[type=range]{width:100%;accent-color:var(--accent)}.switch{display:flex;align-items:center;gap:10px;cursor:pointer}.switch,dl{font-size:13px}dl{display:grid;grid-template-columns:auto minmax(0,1fr);grid-gap:6px 14px;gap:6px 14px;margin:0}dt{color:var(--muted)}dd{margin:0;font-family:var(--f-mono);font-size:12.5px;text-align:right}.chip{display:inline-flex;align-items:center;gap:6px;font-family:var(--f-body);font-weight:600;font-size:12px}.chip:before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}.chip.good{color:var(--good)}.chip.ok{color:var(--warn)}.chip.low{color:var(--bad)}.flag{color:var(--warn);background:color-mix(in srgb,var(--warn) 12%,transparent);border-radius:8px;padding:8px 10px}.flag,.status{font-size:12.5px}.status{color:var(--muted)}.toast{position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:9px 14px;border-radius:10px;font-size:13px;z-index:20;max-width:calc(100% - 32px)}@media (max-width:860px){.studio,body,html{height:auto}.studio main{grid-template-columns:minmax(0,1fr)}.stage-wrap{height:62vh;min-height:360px}.stage-hint{display:none}}