:root{--bg: #10140f;--raise: #181e17;--sunken: #0b0e0a;--line: #2c3829;--text: #e8eedf;--muted: #93a08a;--live: #dff25a;--dying: #ff6b3d;--mark: #f2c14e;--danger: #e07a6a;color-scheme:dark;background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,sans-serif;font-size:16px;line-height:1.4}*,*:before,*:after{box-sizing:border-box}html{scroll-padding-bottom:88px}body{margin:0;min-height:100vh;padding-bottom:76px;background:radial-gradient(900px 420px at 8% -10%,rgba(223,242,90,.08),transparent 55%),var(--bg)}button,select{font:inherit;color:inherit;background:#222a21;border:1px solid #3d4a3a;border-radius:8px;min-height:44px;padding:8px 12px}button{cursor:pointer}button:hover,select:hover{border-color:var(--live)}:focus-visible{outline:2px solid var(--live);outline-offset:2px}button:disabled{opacity:.45;cursor:not-allowed}h1,h2{font-family:Palatino,Iowan Old Style,Palatino Linotype,Georgia,serif;font-weight:500}h1{margin:0;font-size:clamp(1.7rem,3vw,2.35rem);letter-spacing:-.03em;line-height:1}h2{margin:0 0 10px;font-size:1.2rem}.wrap{max-width:1120px;margin:0 auto;padding:22px 16px 24px}header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:16px}.kicker{margin:0 0 6px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--live)}.readout{margin:0;max-width:min(100%,420px);text-align:right;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.82rem;color:var(--muted);overflow-wrap:anywhere}.readout p{margin:0}#stat-pop{color:var(--text)}.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}main{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;align-items:start}.stage,aside{background:var(--raise);border:1px solid var(--line);border-radius:16px;padding:12px}.stage{position:relative}#board{display:block;width:100%;height:auto;aspect-ratio:48 / 32;background:var(--sunken);border-radius:12px;touch-action:none;cursor:crosshair}#spark{display:block;width:100%;height:56px;margin-top:8px;background:var(--sunken);border-radius:8px;cursor:pointer}.empty{position:absolute;left:24px;right:24px;top:50%;transform:translateY(-70%);margin:0;text-align:center;color:var(--muted);pointer-events:none}.empty[hidden]{display:none}.legend{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:8px 2px 0;color:var(--muted);font-size:.8rem}.legend span{display:inline-flex;align-items:center;gap:6px}.legend span[hidden]{display:none}.legend-note{margin-left:auto}.swatch{width:12px;height:12px;border-radius:3px;display:inline-block}.swatch.live{background:var(--live)}.swatch.dying{background:var(--dying)}aside section+section{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}aside label{display:flex;flex-direction:column;gap:4px;margin-bottom:10px;color:var(--muted);font-size:.8rem}aside select,#fork,#fresh{width:100%}#fork,#fresh{margin-top:4px}#branches{list-style:none;margin:0 0 10px;padding:0;display:flex;flex-direction:column;gap:6px;max-height:280px;overflow:auto}.branch{display:flex;gap:6px;align-items:stretch}.switch{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left}.switch[aria-current=true]{border-color:var(--live);box-shadow:inset 3px 0 0 var(--live)}.b-name{font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.b-meta{color:var(--muted);font-size:.72rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.drop{width:64px;padding:8px 6px;color:var(--danger)}.chips{display:flex;flex-wrap:wrap;gap:6px}.chips button{min-height:36px;padding:6px 10px;font-size:.85rem}.actions{display:flex;flex-wrap:wrap;gap:8px}.actions button{flex:1 1 calc(50% - 8px)}.note{margin:8px 0 0;color:var(--muted);font-size:.8rem}.transport{position:fixed;z-index:2;left:0;right:0;bottom:0;display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#10140feb;border-top:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}#play[aria-pressed=true]{background:var(--live);color:#17200a;border-color:var(--live)}.scrub{flex:1 1 180px;min-width:0;display:flex;flex-direction:column;gap:2px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.8rem;color:var(--muted)}.scrub input{width:100%;accent-color:var(--live)}.speed{display:flex;flex-direction:column;gap:2px;font-size:.75rem;color:var(--muted)}.toast{width:fit-content;max-width:100%;margin:0 auto 12px;padding:8px 14px;border-radius:999px;background:var(--mark);color:#1a1608;text-align:center}.toast[hidden]{display:none}@media(max-width:860px){body{display:flex;flex-direction:column;padding-bottom:0}.wrap,main{display:contents}header,.toast,.stage,.transport,aside{width:min(1120px,calc(100% - 24px));margin-left:auto;margin-right:auto}header{order:1;padding-top:16px}.toast{order:2}.stage{order:3}.transport{order:4;position:static;margin-top:12px;border:1px solid var(--line);border-radius:16px}aside{order:5;margin-top:12px;margin-bottom:16px}.legend-note{margin-left:0}}@media(max-width:640px){header{flex-direction:column;align-items:flex-start}.readout{text-align:left}.wrap{padding:16px 12px 20px}.transport{padding-inline:12px}}@media(max-width:420px){.actions button{flex-basis:100%}h1{font-size:1.6rem}}