:root{--brand:#4521c8;--ink:#15223b;--muted:#727c8f;--line:#e1e4ef;--bg:#f6f5fa}
*{box-sizing:border-box}body{margin:0;font-family:"Malgun Gothic","Apple SD Gothic Neo",Arial,sans-serif;color:var(--ink);background:var(--bg);min-height:100vh;display:flex;flex-direction:column}button,input{font:inherit}
.login-header{background:white;border-bottom:1px solid var(--line);padding:25px max(24px,calc((100vw - 1120px)/2))}.login-header a{display:inline-flex}.login-header img{width:225px;max-width:70vw;height:auto}
.login-main{flex:1;display:grid;place-items:center;padding:55px 24px}.login-card{width:100%;max-width:460px;border:1px solid var(--line);background:white;border-radius:18px;padding:42px;box-shadow:0 15px 50px #30264e06}.eyebrow{font-size:12px;font-weight:700;color:var(--brand);margin:0 0 18px}h1{font-size:31px;line-height:1.45;letter-spacing:-.04em;margin:0 0 15px}.intro{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 30px}label{display:block;font-size:13px;font-weight:700;margin-bottom:9px}input{width:100%;border:1px solid #cdd3e2;border-radius:9px;padding:15px;font-size:18px;letter-spacing:.04em;color:var(--ink);min-width:0}input:focus{outline:3px solid #eee9fc;border-color:var(--brand)}input[aria-invalid=true]{border-color:#c64040}input::placeholder{font-size:15px;color:#9ca4b3;letter-spacing:0}.login-message{min-height:22px;margin:9px 0 16px;font-size:12px;line-height:1.65;color:#ba3636}.login-message.pending{color:var(--muted)}button{width:100%;background:var(--brand);border:0;border-radius:9px;color:white;font-size:15px;font-weight:700;padding:16px;cursor:pointer;min-height:52px}button:disabled{opacity:.65;cursor:wait}.help{padding-top:20px;margin:23px 0 0;border-top:1px solid var(--line);font-size:12px;line-height:1.8;color:var(--muted)}footer{text-align:center;font-size:11px;color:#8e96a5;padding:25px 16px}button:focus-visible{outline:3px solid #bdb0ea;outline-offset:3px}
@media(max-width:520px){.login-header{padding:20px}.login-header img{width:195px}.login-main{padding:30px 18px}.login-card{padding:30px 25px;border-radius:14px}h1{font-size:28px}}