:root{--ink: #1b2a4a;--ink-2: #243656;--ink-3: #314563;--paper: #f4f0e6;--paper-2: #ebe4d4;--white: #fffcf7;--line: #d7cfc0;--line-strong: #c4b8a2;--gold: #b0893e;--gold-2: #c9a45a;--seal: #b42318;--seal-dark: #8f1b13;--sky: #2a628c;--ok: #1f6b45;--hold: #9a6700;--muted: #5c564c;--text: #1c1914;--shadow: 0 10px 28px rgba(27, 42, 74, .12);--sidebar: 232px;--top: 56px;--font: Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;--serif: "Noto Serif KR", "Source Han Serif KR", serif;--radius: 4px}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;max-width:100%;overflow-x:hidden;background:var(--paper);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:var(--sky);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:3px solid var(--gold-2);outline-offset:2px}.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--white);padding:8px 12px;z-index:80}.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px 16px;background:radial-gradient(1200px 500px at 80% -10%,rgba(176,137,62,.18),transparent 50%),linear-gradient(180deg,#15233d,#1b2a4a 45%,#243656)}.auth-card{width:min(420px,100%);background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);padding:36px 32px 28px}.brand-mark{display:flex;align-items:center;gap:10px;margin-bottom:8px}.brand-seal{width:36px;height:36px;border:2px solid var(--seal);color:var(--seal);display:grid;place-items:center;font-family:var(--serif);font-weight:700;font-size:16px;transform:rotate(-8deg)}.brand-name{font-family:var(--serif);font-weight:700;letter-spacing:.04em;font-size:20px;color:var(--ink)}.auth-card h1{margin:12px 0 4px;font-size:22px;font-weight:700}.auth-card 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var(--gold);position:sticky;top:0;z-index:30}.topbar .menu-btn{display:none;background:transparent;border:0;color:inherit;min-width:40px;min-height:40px}.top-brand{display:flex;align-items:center;gap:8px;color:inherit;text-decoration:none;font-family:var(--serif);font-weight:700;min-width:168px}.top-brand:hover{text-decoration:none}.top-search{flex:1;max-width:520px;display:flex;align-items:center;gap:8px;background:#ffffff14;border:1px solid rgba(255,255,255,.14);padding:0 12px;height:36px}.top-search input{flex:1;background:transparent;border:0;color:var(--white);outline:none}.top-search 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