:root{color-scheme:light;--bg:#eef2ef;--surface:#fff;--ink:#13221c;--muted:#63736b;--line:#d8e3dd;--brand:#0f766e;--brand-dark:#0b5f58;--danger:#d92d20}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font-family:Pretendard,"Apple SD Gothic Neo","Malgun Gothic","Segoe UI",system-ui,sans-serif}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(420px,100%);border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:28px;box-shadow:0 18px 60px rgba(20,35,29,.12)}.eyebrow{margin:0 0 8px;color:var(--brand);font-size:13px;font-weight:900}.description{margin:0 0 22px;color:var(--muted);line-height:1.5}h1{margin:0 0 8px;font-size:30px}form{display:grid;gap:14px}label{display:grid;gap:7px;font-weight:850}label span{font-size:13px;color:#304139}input{width:100%;min-height:44px;border:1px solid #b8c8c0;border-radius:8px;padding:0 12px;font:inherit}button{min-height:46px;border:0;border-radius:8px;background:var(--brand);color:#fff;font:inherit;font-weight:900;cursor:pointer}button:hover{background:var(--brand-dark)}button:disabled{opacity:.6;cursor:not-allowed}.error{margin:0;border:1px solid #ffb1a6;border-radius:8px;background:#fff4f2;color:var(--danger);padding:10px 12px;font-weight:850}