:root{--bg: #1a1320;--panel: #241a2c;--ink: #f3e9f0;--muted: #b79bb0;--accent: #b05f8a;--accent-2: #6f4f86;--ok: #4fb07a;--bad: #c2607a;--line: #3a2c44}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(120% 120% at 50% 0%,#2a1f33 0%,var(--bg) 60%);color:var(--ink);font:15px/1.45 Segoe UI,system-ui,sans-serif;-webkit-user-select:none;user-select:none}#app{max-width:720px;margin:0 auto;padding:18px 16px 40px}header h1{margin:0 0 2px;font-size:26px;letter-spacing:.5px;background:linear-gradient(90deg,var(--accent),#e3a6c6);-webkit-background-clip:text;background-clip:text;color:transparent}header p{margin:0 0 14px;color:var(--muted);font-size:13px}.bar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}.seg button{background:var(--panel);color:var(--muted);border:0;padding:7px 13px;font:inherit;cursor:pointer}.seg button.on{background:var(--accent);color:#fff}.spacer{flex:1}.btn{background:var(--accent-2);color:#fff;border:0;border-radius:10px;padding:9px 16px;font:inherit;cursor:pointer}.btn.primary{background:var(--accent)}.btn:disabled{opacity:.45;cursor:default}.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--muted)}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:12px}.prompt{font-size:13px;color:var(--muted)}.prompt b{color:var(--accent);font-size:18px}.hint{color:var(--muted);font-size:13px;margin-top:4px}.canvaswrap{position:relative}#cv{width:100%;aspect-ratio:1 / 1;display:block;touch-action:none;background:#fbf6ef;border-radius:12px;cursor:crosshair;box-shadow:inset 0 0 0 1px var(--line)}.meter{height:10px;background:#160f1c;border-radius:6px;overflow:hidden;margin:10px 0 6px}.meter>div{height:100%;width:0%;background:linear-gradient(90deg,var(--accent-2),var(--accent));transition:width .12s}#demoStatus{font-size:13px;color:var(--muted);min-height:18px}#demoStatus.ok{color:var(--ok)}.options{display:grid;grid-template-columns:1fr;gap:8px}.options button{text-align:left;background:#1d1525;color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:11px 13px;font:inherit;cursor:pointer}.options button:hover{border-color:var(--accent)}.options button.correct{border-color:var(--ok);background:#16301f}.options button.wrong{border-color:var(--bad);background:#2c161d}.options button:disabled{cursor:default}#status{color:var(--muted);font-size:13px;min-height:18px}.scoreline{font-size:15px}.scoreline b{color:var(--accent)}.result{text-align:center;padding:8px}.result .big{font-size:38px;color:var(--accent);margin:6px 0}.result table{width:100%;border-collapse:collapse;margin:12px 0}.result td{padding:5px 8px;border-bottom:1px solid var(--line);font-size:13px}.result td:last-child{text-align:right}.tick{color:var(--ok)}.cross{color:var(--bad)}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}