:root{--bg:#0f0e17;--bg-soft:#1a1826;--surface:#211f30;--surface-2:#2a2740;--border:#353150;--text:#f4f1fb;--text-dim:#b6b0cf;--primary:#ff7eb6;--primary-soft:#ff7eb622;--accent:#7af0d3;--accent-2:#9d8cff;--warn:#ffd479;--radius:16px;--shadow:0 8px 30px rgba(0,0,0,0.35)}*{box-sizing:border-box;margin:0;padding:0}body,html{background:var(--bg);color:var(--text);font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Apple SD Gothic Neo,Noto Sans KR,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6}a{text-decoration:none}a,button{color:inherit}button{font-family:inherit;cursor:pointer;border:none;background:none}.container{max-width:760px;margin:0 auto;padding:32px 20px 80px}.gradient-text{background:linear-gradient(120deg,var(--primary),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:12px;font-weight:600;font-size:15px;transition:transform .12s ease,opacity .12s ease}.btn:active{transform:scale(.98)}.btn-primary{background:linear-gradient(120deg,var(--primary),var(--accent-2));color:#1a1020}.btn-ghost{background:var(--surface-2);border:1px solid var(--border);color:var(--text)}.btn:disabled{opacity:.45;cursor:not-allowed}.chip{display:inline-flex;align-items:center;padding:7px 13px;border-radius:999px;font-size:13px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-dim);transition:all .12s ease}.chip.active{background:var(--primary-soft);border-color:var(--primary);color:var(--text)}.chip.clickable{cursor:pointer}h1{font-size:30px;letter-spacing:-.5px}h2{font-size:20px;margin-bottom:4px}.muted{color:var(--text-dim);font-size:14px}.row{gap:10px;flex-wrap:wrap;align-items:center}.row,.stack{display:flex}.stack{flex-direction:column;gap:14px}.mt{margin-top:20px}.center{text-align:center}.similarity-ring{--val:0;width:64px;height:64px;border-radius:50%;background:conic-gradient(var(--primary) calc(var(--val) * 1%),var(--surface-2) 0);display:grid;place-items:center;position:relative}.similarity-ring:after{content:"";position:absolute;inset:6px;background:var(--surface);border-radius:50%}.similarity-ring span{position:relative;font-weight:700;font-size:15px}.divider{height:1px;background:var(--border);margin:18px 0}