:root{color-scheme:dark;--bg:#0b1020;--panel:#121a2d;--panel2:#18233a;--line:#2b3953;--text:#f4f7ff;--muted:#a8b6ce;--cyan:#69e8e5;--gold:#ffd38a;--focus:#ffffff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}html{min-width:320px}body{margin:0;background:radial-gradient(circle at 50% -15%,#1f3551 0,transparent 44%),var(--bg);color:var(--text)}button{font:inherit;cursor:pointer}button:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.app{width:min(1120px,100%);margin:auto;padding:22px 28px 16px}.topbar,.top-actions,.brand,.panel-head,.metrics,.game-actions,.dialog-head{display:flex;align-items:center}.topbar{justify-content:space-between;border-bottom:1px solid #ffffff19;padding-bottom:20px}.brand{gap:12px;letter-spacing:.16em}.brand-mark{display:grid;place-items:center;width:43px;height:43px;border:1px solid #70eae1;border-radius:12px;color:var(--cyan);font-size:25px;box-shadow:inset 0 0 18px 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html{min-width:0}.board .cell{min-height:0}

.game-layout>*{min-width:0}.secondary{min-width:0}@media(max-width:750px){.game-layout{grid-template-columns:minmax(0,1fr)}}