:root{--canvas:#f4f6f8;--surface:#fff;--ink:#17212b;--muted:#5d6875;--line:#d9e0e7;--accent:#0b6e69;--accent-ink:#075752;--focus:#72b7b2;--error:#b42318;color:var(--ink);background:var(--canvas);font-synthesis:none;font-family:system-ui,-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Noto Sans KR,sans-serif}*{box-sizing:border-box}body{min-width:320px;margin:0}button{font:inherit}.shell{width:min(100% - 40px,680px);min-height:100dvh;margin:0 auto;padding:64px 0}.progress-header{justify-content:space-between;align-items:end;gap:16px;margin-bottom:12px;display:flex}.eyebrow,.task-label{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:12px;font-weight:700}.hint,.count{color:var(--muted);margin:8px 0 0;font-size:14px}.count{font-variant-numeric:tabular-nums;white-space:nowrap}progress{width:100%;height:8px;accent-color:var(--accent)}.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-top:32px;padding:32px;box-shadow:0 12px 28px #17212b12}.task-text{letter-spacing:-.01em;margin:16px 0 32px;font-size:22px;line-height:1.55}.choices{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.choices button{border:1px solid var(--accent);background:var(--surface);min-height:52px;color:var(--accent-ink);cursor:pointer;border-radius:8px;font-weight:700;transition:background-color .15s ease-out,color .15s ease-out,opacity .15s ease-out}.choices button:hover,.choices button.is-selected{background:var(--accent);color:var(--surface)}.choices button:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.choices button:disabled{cursor:wait;opacity:.6}.status{min-height:24px;color:var(--muted);margin:20px 0 0;font-size:14px}.status.is-error{color:var(--error);font-weight:700}.completion h1,.error-panel h1{letter-spacing:-.02em;margin:8px 0 12px;font-size:28px}.completion p:not(.eyebrow),.error-panel p{color:var(--muted);margin:0;line-height:1.6}.error-panel{border-color:var(--error)}@media (width<=520px){.shell{width:min(100% - 32px,680px);padding:40px 0}.panel{padding:24px}.task-text{font-size:20px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}