:root{color-scheme:light;--ink:#14243e;--muted:#5c6b81;--line:#dbe3ee;--blue:#345cec;--soft:#f2f5ff}*{box-sizing:border-box}body{margin:0;background:#fafbfd;color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #88a0ff;outline-offset:4px}header{max-width:1200px;margin:auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;gap:8px;align-items:center;font-size:25px;font-weight:800;letter-spacing:-1px}nav{display:flex;gap:22px;align-items:center;font-size:14px;font-weight:650}.nav-cta{background:var(--ink);color:white;padding:10px 16px;border-radius:10px}main{max-width:1120px;margin:auto;padding:35px 32px 72px}.intro{max-width:780px;padding:28px 0 48px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:2px;color:var(--blue)}h1{font-size:clamp(30px,4.2vw,48px);letter-spacing:-2px;line-height:1.32;margin:18px 0}h1 span{color:var(--blue)}.lead{color:var(--muted);font-size:18px}.stats{display:flex;gap:48px;margin-top:30px}.stats div{display:flex;flex-direction:column}.stats strong{font-size:26px;letter-spacing:-1px}.stats span{font-size:13px;color:var(--muted)}.tools{display:flex;gap:16px;align-items:flex-end;background:white;border:1px solid var(--line);border-radius:16px;padding:20px}.tools label>span{display:block;font-size:12px;font-weight:650;margin-bottom:6px}.search{flex:1}.search input,select{min-height:48px;border:1px solid #bcc9da;border-radius:9px;background:white;padding:10px 12px;width:100%;color:var(--ink)}.category{width:170px}.saved{display:flex;align-items:center;gap:6px;font-size:14px;white-space:nowrap;min-height:48px}.saved input{width:18px;height:18px;accent-color:var(--blue)}#status{font-size:13px;color:var(--muted);margin:22px 2px 14px}.cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}.card{border:1px solid var(--line);border-radius:16px;background:white;overflow:hidden}.card summary{cursor:pointer;padding:22px;list-style:none;display:block}.card summary::-webkit-details-marker{display:none}.label{font-size:12px;color:var(--blue);font-weight:700}.card h2{font-size:18px;line-height:1.55;letter-spacing:-.45px;margin:8px 0 14px}.card .teaser{font-size:14px;color:var(--muted);margin:0}.open-label{font-size:12px;font-weight:650;display:block;margin-top:15px;color:var(--blue)}details[open] .open-label{display:none}details[open] summary{border-bottom:1px solid #edf0f5}.detail{padding:0 22px 22px}.detail h3{font-size:12px;letter-spacing:.3px;margin:22px 0 7px;color:var(--muted)}.detail p{font-size:15px;margin:0}.answer{background:var(--soft);border-radius:10px;padding:15px}.followup{border-left:2px solid #92a6ff;padding-left:12px;margin:12px 0}.followup strong{font-size:14px;display:block}.followup p{color:var(--muted);font-size:13px;margin-top:4px}.warning{color:#70552b}.evidence{font-size:13px!important;color:var(--muted)}.card-actions{display:flex;justify-content:space-between;gap:8px;margin-top:22px}.card-actions button,.more button,#retry{border:1px solid var(--line);background:white;color:var(--ink);border-radius:9px;padding:9px 12px;font-size:13px;font-weight:650}.card-actions button[aria-pressed=true]{background:var(--soft);color:var(--blue);border-color:#b6c4ff}.more{text-align:center;padding:28px}.more button{padding:12px 30px}.empty,.notice{padding:30px;background:white;border:1px solid var(--line);border-radius:12px;text-align:center;color:var(--muted)}.method{margin-top:50px;border-top:1px solid var(--line);padding-top:30px;max-width:850px}.method h2{font-size:20px}.method ol{padding-left:24px}.method li{padding-bottom:7px}.method p{font-size:13px;color:var(--muted)}footer{border-top:1px solid var(--line);padding:30px max(24px,calc((100vw - 1056px)/2));font-size:13px;color:var(--muted)}footer>div{display:flex;gap:20px;margin:14px 0}.skip{position:absolute;top:-100px;left:16px;background:white;padding:10px;z-index:99}.skip:focus{top:10px}[hidden]{display:none!important}@media(max-width:700px){header{padding:18px 20px}.brand{font-size:22px}nav{gap:12px;font-size:12px}.nav-cta{padding:8px 10px}main{padding:18px 20px 48px}.intro{padding:15px 0 30px}.lead{font-size:16px}.stats{gap:32px}.stats strong{font-size:22px}.tools{flex-wrap:wrap;padding:15px;gap:12px}.search{flex-basis:100%}.category{flex:1}.cards{grid-template-columns:1fr}.card summary{padding:20px}.detail{padding:0 20px 20px}.card h2{font-size:17px}.stats span{font-size:12px}.method{margin-top:22px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.reference-links{display:flex;flex-direction:column;gap:7px}.reference-links a{font-size:13px;color:var(--blue);text-decoration:underline;text-underline-offset:3px}

.brand img{display:block;width:177px;height:auto}@media(max-width:700px){.brand img{width:145px}}@media(max-width:360px){.brand img{width:112px}nav{gap:8px;font-size:11px}}