:root{--color-primary:#263653;--color-text:#20242c;--color-muted:#6b7280;--line:#e5e2db;--bg:#f7f5f0}*{box-sizing:border-box}body{margin:0;font-family:Pretendard,Apple SD Gothic Neo,sans-serif;background:var(--bg);color:var(--color-text)}button{font-family:inherit;cursor:pointer}.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:360px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;box-shadow:0 20px 40px #14141e0f}.auth-card .eyebrow{font-size:11px;letter-spacing:.08em;color:var(--color-muted);font-weight:700;margin:0}.auth-card h1{margin:4px 0 20px;font-size:24px}.auth-tabs{display:flex;gap:6px;margin-bottom:18px;background:#f2f1ec;border-radius:10px;padding:4px}.auth-tabs button{flex:1;padding:8px;border:none;border-radius:8px;background:transparent;color:var(--color-muted);font-weight:600;font-size:13px}.auth-tabs button.active{background:#fff;color:var(--color-text);box-shadow:0 1px 3px 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