:root{color:#17202a;background:#f5f7fb;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: #ffffff;--line: #dce2ea;--muted: #657383;--text: #17202a;--player: #0f9f8e;--opponent: #c3542f;--accent: #6757d9;--warning: #c78b00;--danger: #b94343;--good-bg: #e8f7f3;--bad-bg: #faece7;--shadow: 0 12px 28px rgba(23, 32, 42, .08)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(180deg,#ffffffb3,#f5f7fb00),#f5f7fb}button,select,input{font:inherit}button{cursor:pointer}.app-shell{width:min(1480px,100%);margin:0 auto;padding:20px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;margin-bottom:14px}.topbar h1{margin:0;font-size:clamp(1.4rem,2vw,2rem);line-height:1.05;letter-spacing:0}.topbar p{margin:6px 0 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