:root{--bg: #ffffff;--surface: #f7f8fa;--border: #e3e6ea;--text: #1a1d21;--muted: #6b7280;--accent: #1f6feb;--accent-soft: #e8f0fe;--danger: #c0392b;--radius: 10px;--maxw: 44rem}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #14171a;--surface: #1c2126;--border: #2d343b;--text: #e8eaed;--muted: #9aa4af;--accent: #6ea8fe;--accent-soft: #1d2b40;--danger: #ff7b6b}}:root[data-theme=dark]{--bg: #14171a;--surface: #1c2126;--border: #2d343b;--text: #e8eaed;--muted: #9aa4af;--accent: #6ea8fe;--accent-soft: #1d2b40;--danger: #ff7b6b}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard,Malgun Gothic,system-ui,sans-serif;line-height:1.6;-webkit-text-size-adjust:100%}.wrap{max-width:var(--maxw);margin:0 auto;padding:24px 16px 64px}header.site{border-bottom:1px solid var(--border);background:var(--surface)}header.site .wrap{padding:16px;display:flex;align-items:baseline;gap:10px}header.site strong{font-size:1rem}header.site span{color:var(--muted);font-size:.85rem}h1{font-size:1.35rem;margin:0 0 4px;letter-spacing:-.01em}h2{font-size:1.1rem;margin:0 0 2px}p.lead{color:var(--muted);margin:0 0 20px;font-size:.92rem}.progress{height:4px;background:var(--border);border-radius:99px;overflow:hidden;margin:14px 0 22px}.progress>i{display:block;height:100%;background:var(--accent);transition:width .25s ease}.stepmeta{color:var(--muted);font-size:.82rem;margin-bottom:4px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:14px}.q{margin-bottom:22px}.q:last-child{margin-bottom:4px}.q>label.qlabel{display:block;font-weight:600;margin-bottom:8px;font-size:.95rem}.q .help{color:var(--muted);font-size:.84rem;margin:-2px 0 8px}.q .helplist{color:var(--muted);font-size:.82rem;margin:-2px 0 10px;padding-left:1em}.q .helplist li{margin:2px 0}.req{color:var(--danger);margin-left:3px}input[type=text],input[type=number],select{width:100%;max-width:100%;padding:10px 12px;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:8px}.w-xs input,.w-xs select{width:6.5rem}.w-sm input,.w-sm select{width:11rem}.w-md input,.w-md select{width:15rem}.w-lg input,.w-lg select{width:100%}@media(max-width:420px){.w-sm input,.w-sm select,.w-md input,.w-md select{width:100%}}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.unit{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.unit input{flex:none}.pair{display:inline-flex;align-items:center;gap:6px}.pair input{width:5rem}.unit span{color:var(--muted);font-size:.9rem;white-space:nowrap}.choices{display:grid;gap:6px}.choices.inline{display:flex;flex-wrap:wrap;gap:6px}.choices.inline .choice{flex:0 0 auto}.choice{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg);cursor:pointer}.choice:hover{border-color:var(--accent)}.choice.on{border-color:var(--accent);background:var(--accent-soft)}.choice input{margin:3px 0 0;flex:none;accent-color:var(--accent)}.nav{display:flex;gap:10px;margin-top:20px}button{font:inherit;padding:11px 18px;border-radius:8px;cursor:pointer;border:1px solid var(--border);background:var(--bg);color:var(--text)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.primary:disabled{opacity:.5;cursor:not-allowed}button.grow{flex:1}.notice{border-left:3px solid var(--accent);background:var(--accent-soft);padding:10px 14px;border-radius:6px;font-size:.88rem;margin-bottom:16px}.error{color:var(--danger);font-size:.88rem;margin-top:10px}.consent dt{font-weight:600;font-size:.9rem;margin-top:12px}.consent dd{margin:4px 0 0;color:var(--muted);font-size:.88rem}.done{text-align:center;padding:48px 0}.done .mark{font-size:2.5rem}.srow{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}.tag{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:99px;font-size:.75rem;background:var(--border);color:var(--muted)}.tag.on{background:var(--accent-soft);color:var(--accent)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:10px}.stats>div{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px;text-align:center}.stats b{display:block;font-size:1.25rem}.stats span{color:var(--muted);font-size:.75rem}.meta{color:var(--muted);font-size:.8rem}.meta code{background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:1px 5px}@media(max-width:480px){.stats{grid-template-columns:repeat(2,1fr)}}.btns{display:flex;gap:6px;flex-wrap:wrap}.btns button{padding:8px 12px;font-size:.85rem}h2.sect{margin:26px 0 10px;font-size:.95rem;color:var(--muted);font-weight:600;border-bottom:1px solid var(--border);padding-bottom:6px}