:root{--color-bg: #0a0a0a;--color-surface: #1a1a1a;--color-surface-2: #242424;--color-border: #333;--color-text: #f0f0f0;--color-text-muted: #888;--color-accent: #e8c97e;--color-success: #4ade80;--color-error: #f87171;--font-sans: "Helvetica Neue", Arial, "Hiragino Sans", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);min-height:100vh}button{cursor:pointer;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);padding:.6rem 1.4rem;border-radius:6px;font-size:1rem;font-family:inherit;transition:background .15s,border-color .15s}button:hover:not(:disabled){background:var(--color-surface-2);border-color:#555}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--color-accent);color:#111;border-color:var(--color-accent);font-weight:700;letter-spacing:.03em}button.primary:hover:not(:disabled){background:#f0d898;border-color:#f0d898}input{font-family:inherit}.game-header{padding:.75rem 1.5rem;background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center;flex-shrink:0;gap:.5rem}.game-title{color:var(--color-accent);font-weight:700;font-size:1rem;letter-spacing:.03em;white-space:nowrap}.game-user-info{font-size:.9rem;color:var(--color-text-muted);display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;justify-content:flex-end}@media (max-width: 500px){.game-header{padding:.5rem .75rem;flex-direction:column;align-items:stretch;justify-content:center;gap:.5rem}.game-title{font-size:1rem;text-align:center}.game-user-info{font-size:.85rem;gap:.4rem;justify-content:center}}.hamburger-container{position:relative;display:inline-block}.hamburger-button{background:transparent;border:none;color:var(--color-text-muted);font-size:1.5rem;padding:.2rem .4rem;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:color .2s,background .2s}.hamburger-button:hover{color:var(--color-text);background:var(--color-surface-2)}.hamburger-dropdown{position:absolute;top:100%;left:0;margin-top:.5rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;box-shadow:0 4px 12px #00000080;display:flex;flex-direction:column;min-width:140px;z-index:1000;overflow:hidden}.hamburger-dropdown button{background:transparent;border:none;border-radius:0;color:var(--color-text);padding:.75rem 1rem;text-align:left;font-size:.9rem;width:100%}.hamburger-dropdown button:hover{background:var(--color-surface-2)}