:root{--ink:#12213a;--blue:#1463ff;--muted:#68788d;--line:#dae3ee;--bg:#f1f5fa}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font-family:Inter,Pretendard,"Noto Sans KR",Arial,sans-serif;display:grid;place-items:center;padding:24px}.auth-shell{width:min(920px,100%);min-height:560px;display:grid;grid-template-columns:.92fr 1.08fr;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 25px 80px rgba(24,47,80,.14)}.auth-brand{position:relative;padding:54px 46px;background:linear-gradient(145deg,#12213a,#18355e);color:#fff;display:flex;flex-direction:column;justify-content:center}.auth-brand:after{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(255,255,255,.09);border-radius:50%;right:-110px;bottom:-80px}.mark{width:48px;height:48px;display:grid;place-items:center;border-radius:13px;background:#fff;color:var(--ink);font-weight:900;letter-spacing:-1px;margin-bottom:38px}.auth-brand p{font-size:10px;font-weight:800;letter-spacing:1.8px;color:#8fb5ff}.auth-brand h1{font-size:36px;line-height:1.2;letter-spacing:-1.8px;margin:10px 0 18px}.auth-brand h1 strong{color:#75a5ff}.auth-brand span{max-width:320px;color:#b8c6da;font-size:13px;line-height:1.7}.auth-card{padding:58px 54px;display:flex;flex-direction:column;justify-content:center}.step{color:var(--blue);font-size:10px;font-weight:900;letter-spacing:1.7px}.auth-card h2{font-size:25px;letter-spacing:-.8px;margin:8px 0}.auth-card>p{color:var(--muted);font-size:12px;line-height:1.6;margin:0 0 22px}.auth-card form{display:grid;gap:15px}.auth-card label{display:grid;gap:7px;font-size:12px;font-weight:800}.auth-card input{width:100%;height:45px;padding:0 13px;border:1px solid var(--line);border-radius:9px;font:inherit;outline:none}.auth-card input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(20,99,255,.1)}.auth-card button{height:47px;margin-top:4px;border:0;border-radius:9px;background:var(--blue);color:#fff;font-weight:900;cursor:pointer;box-shadow:0 9px 20px rgba(20,99,255,.23)}.auth-card small{color:#8a98a9;font-size:10px;margin-top:17px}.error{padding:11px 13px;margin-bottom:16px;border:1px solid #ffd0ca;border-radius:8px;background:#fff3f1;color:#b83e32;font-size:12px}@media(max-width:720px){.auth-shell{grid-template-columns:1fr}.auth-brand{padding:34px}.auth-brand h1{font-size:28px}.mark{margin-bottom:18px}.auth-card{padding:38px 30px}}