:root{--bg:#f7f9fa;--surface:#fff;--text:#1b2a33;--text-muted:#4a5b66;--primary:#0f6e7a;--on-primary:#fff;--accent-bg:#e3f0f2;--warn-border:#b54708;--warn-bg:#fff1e3;--warn-text:#8a3a04;--ok:#1e7b4f;--error:#b42318;--border:#d5dee3;--radius:8px;--gutter:16px;--maxw:1080px;--font-sans:system-ui, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Segoe UI", sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--bg:#0f1a20;--surface:#16252d;--text:#e6edf1;--text-muted:#9db0ba;--primary:#4fc3cf;--on-primary:#06262b;--accent-bg:#1b3a42;--warn-border:#f0a04b;--warn-bg:#3a2410;--warn-text:#ffc48a;--ok:#5fd39a;--error:#ff8a80;--border:#2a3e49}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);margin:0;font-size:16px;line-height:1.65}html[lang=en] body{line-height:1.55}h1,h2,h3{margin:0 0 .6em;line-height:1.3}h1{font-size:2rem}h2{margin-top:2rem;font-size:1.5rem}h3{font-size:1.125rem}@media (width<=640px){h1{font-size:1.75rem}}p{margin:0 0 1em}a{color:var(--primary);text-underline-offset:2px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.container{max-width:var(--maxw);padding:0 var(--gutter);margin:0 auto}main.container{padding:32px var(--gutter) 64px;min-height:60vh}.muted{color:var(--text-muted)}.skip{position:absolute;left:-9999px}.skip:focus{left:var(--gutter);background:var(--surface);z-index:10;padding:8px;top:8px}.site-header{background:var(--surface);border-bottom:1px solid var(--border);z-index:5;position:sticky;top:0}.site-header .bar{flex-wrap:wrap;align-items:center;gap:16px;min-height:60px;display:flex}.logo{color:var(--text);letter-spacing:.2px;font-size:1.25rem;font-weight:700;text-decoration:none}.logo 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var(--primary);background:var(--primary);min-height:44px;color:var(--on-primary);font:inherit;cursor:pointer;justify-content:center;align-items:center;padding:0 20px;font-weight:600;text-decoration:none;display:inline-flex}.btn.secondary{color:var(--primary);background:0 0}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-row{flex-wrap:wrap;gap:12px;margin:16px 0;display:flex}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.grid3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.banner{background:var(--accent-bg);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:16px}.warn{background:var(--warn-bg);color:var(--warn-text);border:1px solid var(--warn-border);border-radius:var(--radius);border-left-width:6px;margin-bottom:20px;padding:12px 16px}.notice-ok{border-left:6px solid var(--ok)}.error-box{border:1px solid var(--error);border-radius:var(--radius);color:var(--error);background:var(--surface);border-left-width:6px;padding:12px 16px}.form{gap:18px;max-width:680px;display:grid}.field label,.field legend{margin-bottom:4px;font-weight:600;display:block}.field label.check,label.check{font-weight:400;display:flex}.req{color:var(--text-muted);margin-left:4px;font-size:.85em;font-weight:400}input[type=text],input[type=email],input[type=tel],select,textarea{width:100%;min-height:44px;font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:8px 12px}textarea{resize:vertical;min-height:110px}fieldset{border:1px solid var(--border);border-radius:var(--radius);margin:0;padding:12px 16px}.checks{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:6px;display:grid}.check{align-items:flex-start;gap:8px;font-weight:400;display:flex}.check input{margin-top:5px}.field 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(width<=1080px){.result{grid-template-columns:1fr}}.json-view{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);font-family:var(--font-mono);white-space:pre;max-height:560px;margin:0;padding:12px;font-size:.82rem;overflow:auto}.scroll-y{max-height:560px;overflow:auto}details{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin-bottom:8px;padding:12px 16px}summary{cursor:pointer;font-weight:600}.site-footer{border-top:1px solid var(--border);color:var(--text-muted);padding:24px 0 40px;font-size:.9rem}.site-footer .links{flex-wrap:wrap;gap:16px;margin-bottom:8px;display:flex}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}[hidden]{display:none!important}