:root,[data-theme=light]{--bg: #dde2ec;--ink: #0e1a2b;--ink-2: #4a5769;--accent: #ffd447;--on-accent: #0e1a2b;--surface: #f6f8fc;--paper: #ffffff;--cell-given: #cdd5e3;--cell-filled: #ffffff;--digit-given: #0e1a2b;--digit-player: #1a46a8;--rule: #b4bdcc;--rule-strong: #7c889b;--conflict: #b3261e;--on-conflict: #fff4f2;--hover-dark: #1d2f4a;--hover-accent: #ffe178;--off-border: #a9b4c6;--off-ink: #5c6b80;--grid-frame: #0e1a2b;--track: #d5dce8;--track-on-ink: #3a4a63}[data-theme=dark]{--bg: #0a1524;--ink: #e8edf6;--ink-2: #9aa8bc;--accent: #ffd447;--on-accent: #0e1a2b;--surface: #0d1725;--paper: #1f2c43;--cell-given: #182238;--cell-filled: #1f2c43;--digit-given: #e8edf6;--digit-player: #ffd447;--rule: #26354e;--rule-strong: #5a6a82;--conflict: #b3261e;--on-conflict: #fff4f2;--hover-dark: #1d2f4a;--hover-accent: #ffe178;--off-border: #31405a;--off-ink: #66748a;--grid-frame: #e8edf6;--track: #26354e;--track-on-ink: #9aa8bc}*,*:before,*:after{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:Space Grotesk,system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}button,input,textarea,a{font-family:inherit;color:inherit}button{border-radius:0}a{color:var(--ink);text-decoration:none}:focus-visible{outline:2px solid var(--digit-player);outline-offset:2px}app-root{display:flex;flex-direction:column;min-height:100dvh}.shell__main{flex:1;display:flex;flex-direction:column;min-height:0}.shell__main>*:not(router-outlet){flex:1;display:flex;flex-direction:column;min-height:0}.screen{flex:1;display:flex;flex-direction:column;min-height:0}.pad{padding-left:26px;padding-right:26px}.grow{flex:1}.mono{font-family:IBM Plex Mono,ui-monospace,monospace}.brand{font-weight:700;letter-spacing:-.045em;line-height:1}.title{font-size:22px;font-weight:600;letter-spacing:-.025em;margin:0}.caps{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:11px;letter-spacing:.1em;color:var(--ink-2)}.sub{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:11px;letter-spacing:.08em;color:var(--ink-2)}.prose{font-size:13px;color:var(--ink-2);line-height:1.55;text-wrap:pretty}.link{font-size:13px;color:var(--ink-2);background:none;border:none;padding:0;cursor:pointer}.link:hover{color:var(--digit-player)}.nav-link{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:12px;letter-spacing:.08em;color:var(--ink-2);background:none;border:none;padding:0;cursor:pointer;text-align:left}.nav-link:hover{color:var(--digit-player)}.btn{font-family:Space Grotesk,system-ui,sans-serif;font-size:16px;font-weight:600;letter-spacing:-.01em;padding:17px;border:none;cursor:pointer;text-align:center;border-radius:0}.btn--solid{background:var(--ink);color:var(--accent)}.btn--solid:hover{background:var(--hover-dark);color:var(--accent)}.btn--outline{background:transparent;color:var(--ink);border:1.5px solid var(--ink);font-size:15px;font-weight:500;padding:15px}.btn--outline:hover,.btn--accent{background:var(--accent);color:var(--on-accent)}.btn--accent:hover{background:var(--hover-accent)}.btn:disabled{cursor:default;opacity:1}.chip{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:12px;font-weight:500;letter-spacing:.04em;padding:7px 12px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;border-radius:0}.chip--active{border-color:transparent;background:var(--ink);color:var(--accent);font-weight:600}.chip--off{border:1.5px dashed var(--off-border);color:var(--off-ink);cursor:default}.chip--wide{font-family:Space Grotesk,system-ui,sans-serif;font-size:14px;letter-spacing:0;padding:9px 16px}.field{background:var(--surface);border:1.5px solid var(--ink);border-radius:0;outline:none;padding:12px 14px;font-size:14px;color:var(--ink)}.field::placeholder{color:var(--ink-2)}@media(any-pointer:coarse){.field{font-size:16px}}.rule-top{border-top:1.5px solid var(--ink)}.hair{border-bottom:1px solid var(--rule)}.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;font-size:13px;background:var(--accent);color:var(--on-accent)}.bar__action{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:12px;font-weight:600;letter-spacing:.06em;background:transparent;border:1.5px solid currentColor;color:inherit;padding:6px 10px;cursor:pointer}.bar--quiet{background:transparent;color:var(--ink-2);padding:0;font-size:12px}@media(min-width:768px){body{font-size:16px}.pad{padding-left:40px;padding-right:40px}.title{font-size:30px}}