:root{color:#14252a;background:#f4f1e8;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--surface: #fffaf0;--line: #d6cdbc;--ink: #14252a;--muted: #6b746d;--green: #1e6f57;--teal: #123b43;--red: #a7262d;--shadow: 0 18px 48px rgba(18, 59, 67, .14)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100dvh;background:linear-gradient(135deg,rgba(30,111,87,.12),transparent 34%),linear-gradient(225deg,rgba(167,38,45,.08),transparent 30%),#f4f1e8}button{color:inherit;font:inherit}.app-shell{width:min(1180px,100%);min-height:100dvh;margin:0 auto;padding:24px;display:flex;flex-direction:column;gap:18px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:10px 2px 2px}.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}.eyebrow{margin:0 0 4px;color:var(--green);font-size:.78rem;font-weight:800;letter-spacing:0;text-transform:uppercase}h1{margin:0;color:var(--teal);font-size:clamp(2rem,5vw,4.4rem);line-height:.96;letter-spacing:0}.icon-button,.icon-only,.save-layout-button{border:1px solid var(--line);background:#fffaf0db;box-shadow:0 8px 18px #14252a14;cursor:pointer}.icon-button{min-height:44px;padding:0 14px;border-radius:8px;display:inline-flex;align-items:center;gap:8px;font-weight:800}.icon-only{width:38px;height:38px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center}.icon-button:disabled,.save-layout-button:disabled{cursor:not-allowed;opacity:.48}.mode-pill{min-height:44px;padding:0 12px;border:1px solid rgba(18,59,67,.14);border-radius:8px;display:inline-flex;align-items:center;background:#fffaf0b8;color:var(--teal);font-size:.9rem;font-weight:900;white-space:nowrap}.reset-button:hover,.icon-only:hover,.add-set-button:hover,.save-layout-button:hover,.history-item-actions 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0}.history-item{grid-template-columns:1fr}.history-item-actions{justify-content:flex-end}}@media(min-width:1040px){.tile-set{min-height:156px}.set-dropzone{min-height:112px}.placed-tile{width:52px;height:72px}.mahjong-tile{width:52px;height:68px}.mahjong-tile.is-compact{max-width:44px;height:58px}}