:root{--bg: #0e1116;--panel: #181d25;--line: #2a323d;--ink: #eef3f7;--dim: #93a4b3;--accent: #5a9c6a;--chip: #222c36;--chip2: #2a3744;--sel: #1f3d2a;--bad: #5a1f26}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#16201a,var(--bg));color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex;justify-content:center;-webkit-user-select:none;user-select:none}#app{width:100%;max-width:560px;padding:12px 12px 30px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:26px;letter-spacing:5px;font-weight:800;color:var(--accent)}.sub{margin:3px 0 0;color:var(--dim);font-size:13px}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:10px 0}.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;overflow:hidden}.seg button{background:none;border:none;color:var(--dim);padding:6px 14px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#06200f}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:8px 15px;border-radius:999px;font:700 13px system-ui;cursor:pointer}.btn:hover:not(:disabled){border-color:var(--accent)}.btn:disabled{opacity:.45;cursor:default}.btn.primary{background:var(--accent);color:#06200f;border-color:var(--accent)}.scoreboard{display:flex;gap:10px;justify-content:center;margin:8px 0}.readout{background:#0a0e13;border:1px solid var(--line);border-radius:8px;padding:5px 16px;font:800 18px ui-monospace,monospace;color:var(--accent);min-width:92px;text-align:center}.readout span{color:var(--dim);font-size:11px;display:block;font-weight:600;letter-spacing:.5px}.prompt,.answer{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:10px 0}.lang-label{color:var(--dim);font-size:12px;font-weight:700;letter-spacing:.5px;margin-bottom:6px}.sentence{font-size:20px;font-weight:700;line-height:1.4}.slots{display:flex;flex-wrap:wrap;gap:7px;min-height:40px}.slot{background:var(--chip2);border:1px solid var(--line);color:var(--ink);padding:8px 12px;border-radius:8px;font:700 16px system-ui;cursor:pointer}.slot.empty{color:var(--dim);border-style:dashed;background:#11161d;min-width:38px}.slot:hover:not(:disabled){border-color:var(--accent)}.slot:disabled{cursor:default}.bank{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:10px 0}.chip{background:var(--chip);border:1px solid var(--line);color:var(--ink);padding:9px 14px;border-radius:999px;font:700 16px system-ui;cursor:pointer}.chip:hover:not(:disabled){border-color:var(--accent);background:var(--sel)}.chip.used{opacity:.28;cursor:default}.chip:disabled{cursor:default}.result{background:var(--panel);border:1px solid var(--accent);border-radius:10px;padding:14px;margin-top:12px}.result-title{font-size:18px;font-weight:800;color:var(--accent);margin-bottom:10px}.relay{background:#0a0e13;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font:600 14px ui-monospace,monospace;white-space:pre-wrap}.relay-line{line-height:1.6}.relay-line.dim{color:var(--dim)}.drift{margin-top:10px;font-size:16px;font-weight:800;color:var(--ink)}