:root{--bg:#fbfaf7;--surface:#ffffff;--surface-2:#f2f0eb;--text:#1c1b19;--muted:#6b6860;--border:#e3e0d8;--accent:#2f5bea;--accent-ink:#ffffff;--danger:#c2341b;--radius:14px;--shadow:0 1px 2px rgb(0 0 0/0.04),0 8px 24px rgb(0 0 0/0.06);--checker:repeating-conic-gradient(#e7e5df 0% 25%,#f7f6f2 0% 50%) 50% /16px 16px;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#16161a;--surface:#1e1e23;--surface-2:#26262c;--text:#ecebe7;--muted:#9c9a93;--border:#33333a;--accent:#7c9cff;--accent-ink:#0d1020;--danger:#ff7a60;--shadow:0 1px 2px rgb(0 0 0/0.3),0 8px 24px rgb(0 0 0/0.3);--checker:repeating-conic-gradient(#2a2a30 0% 25%,#222227 0% 50%) 50% /16px 16px;color-scheme:dark}}*{box-sizing:border-box}body,html{margin:0}body{background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Apple SD Gothic Neo,Noto Sans KR,Malgun 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0;cursor:pointer;outline:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:right 4px center,right 0 center;background-size:4px 4px;background-repeat:no-repeat}.lang-switch:focus-within{outline:2px solid var(--accent);outline-offset:1px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}main.wrap{padding-top:32px;padding-bottom:64px;min-height:70vh}.site-footer{border-top:1px solid var(--border);padding:24px 0;font-size:13px;color:var(--muted)}.footer-inner nav{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:8px}.footer-inner a{color:var(--muted);text-decoration:none}.footer-inner a:hover{color:var(--text)}.footer-inner p{margin:0}.hero h1{font-size:clamp(28px,5vw,40px);line-height:1.2;margin:0 0 8px;letter-spacing:-.02em}.hero p{color:var(--muted);margin:0 0 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var(--border);border-radius:var(--radius);color:var(--muted);font-size:12px;letter-spacing:.08em;text-transform:uppercase}button,input,select{font:inherit;color:inherit}.btn{border:0;border-radius:10px;padding:10px 18px;cursor:pointer;background:var(--accent);color:var(--accent-ink);font-weight:600;white-space:nowrap}.btn:disabled{opacity:.6;cursor:progress}.btn-secondary{background:var(--text);color:var(--bg)}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border);padding:6px 12px;font-weight:500}.input{flex:1 1;min-width:0;padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:var(--surface)}.input:focus{outline:2px solid var(--accent);outline-offset:1px}.tool-head h1{font-size:clamp(26px,4.5vw,36px);line-height:1.2;letter-spacing:-.02em;margin:0 0 8px}.tool-head p{color:var(--muted);margin:0 0 24px}.tool-content{max-width:760px;margin-top:48px}.tool-content h2{font-size:22px;margin:40px 0 12px;letter-spacing:-.01em}.tool-content 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