:root{--bg: #fff;--text: #1f2328;--muted: #6b7280;--line: #e5e7eb;--primary: #2563eb;--danger: #dc2626;--ok: #16a34a;--panel: #f8fafc;font-family:-apple-system,Pretendard,Apple SD Gothic Neo,Noto Sans KR,system-ui,sans-serif;font-size:16px;line-height:1.6;color:var(--text)}@media(prefers-color-scheme:dark){:root{--bg: #0f1115;--text: #e5e7eb;--muted: #9ca3af;--line: #2a2f3a;--panel: #161a22;--primary: #60a5fa}}*{box-sizing:border-box}body{margin:0;background:var(--bg)}header{border-bottom:1px solid var(--line)}header .wrap{display:flex;align-items:center;gap:16px}header a{color:var(--text);text-decoration:none}header .brand{font-weight:700}header nav{margin-left:auto;display:flex;gap:14px;font-size:14px}.wrap{max-width:640px;margin:0 auto;padding:16px}main.wrap{padding-top:24px;padding-bottom:48px}h1{font-size:24px;margin:0 0 8px}h2{font-size:18px;margin:28px 0 8px}p.lead{color:var(--muted);margin-top:0}label{display:block;font-size:14px;color:var(--muted);margin:14px 0 6px}input,select,textarea{font:inherit;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text)}textarea{min-height:120px}button{font:inherit;width:100%;padding:12px;margin-top:18px;border:0;border-radius:8px;background:var(--primary);color:#fff;font-weight:600;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;margin:16px 0}.code{font-family:ui-monospace,monospace;font-size:20px;letter-spacing:1px;padding:10px 14px;background:var(--bg);border:1px dashed var(--line);border-radius:8px;display:inline-block;-webkit-user-select:all;user-select:all}.error{color:var(--danger);font-size:14px;margin-top:10px}.ok{color:var(--ok)}.muted{color:var(--muted);font-size:14px}ol,ul{padding-left:20px}.steps li{margin-bottom:8px}footer{border-top:1px solid var(--line);color:var(--muted);font-size:13px}footer .wrap{display:flex;flex-wrap:wrap;gap:12px}footer a{color:var(--muted)}.hidden{display:none}.notice{border-left:4px solid var(--danger);padding:8px 12px;background:var(--panel);font-size:14px}.list .item{border:1px solid var(--line, #e5e7eb);border-radius:8px;margin-bottom:8px;background:#fff}.list summary{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:14px 16px;cursor:pointer;font-weight:600;list-style:none}.list summary::-webkit-details-marker{display:none}.list summary:after{content:"+";color:var(--muted, #6b7280);font-weight:400}.list details[open] summary:after{content:"−"}.list summary time{color:var(--muted, #6b7280);font-weight:400;font-size:13px;white-space:nowrap}.list .body{padding:0 16px 16px;color:#374151;line-height:1.6}.list .body p{margin:0 0 8px}