:root{color-scheme:light;--ink:#17252f;--muted:#536570;--paper:#f4f7fa;--accent:#19617a;--line:#cbd7df;--white:#fff;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans KR",sans-serif;font-size:16px}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink)}a{color:inherit}button,input{font:inherit}a,button,input{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #e29427;outline-offset:5px}.page{max-width:1120px;min-height:100svh;margin:0 auto;padding:0 56px;display:flex;flex-direction:column}.header{height:116px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{text-decoration:none;font-size:2.4rem;font-weight:780;letter-spacing:-.08em}.brand-dot{color:var(--accent)}main{flex:1;display:flex;align-items:center;padding:64px 0 80px}.home-surface{width:100%;border-left:4px solid var(--accent);padding:4px 0 4px 44px}.eyebrow{color:var(--accent);font-size:.8rem;font-weight:700;letter-spacing:.2em;margin:0 0 30px}h1{font-size:clamp(2.3rem,5vw,4.3rem);line-height:1.2;letter-spacing:-.055em;font-weight:650;margin:0 0 25px;overflow-wrap:anywhere}.description{color:var(--muted);font-size:1.05rem;line-height:1.85;max-width:520px;margin:0 0 32px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:55px;min-width:210px;min-height:54px;background:var(--ink);color:white;border:1px solid var(--ink);padding:15px 23px;text-decoration:none;font-weight:650;border-radius:4px;cursor:pointer}.button:hover{background:var(--accent);border-color:var(--accent)}.button-secondary{background:transparent;color:var(--ink)}.button-secondary:hover{color:#fff}.button span{font-size:1.3rem;line-height:1}.footer{padding:24px 0 28px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;font-size:.8rem;color:var(--muted)}.footer span:last-child{letter-spacing:.13em;font-size:.75rem}.state{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--accent);margin:0 0 20px}.state-dot{width:7px;height:7px;background:var(--accent);border-radius:50%}.account-line{border-top:1px solid var(--line);padding:19px 0 26px;max-width:520px;display:flex;gap:24px;font-size:.9rem;overflow-wrap:anywhere}.account-line span{color:var(--muted);flex-shrink:0}.account-line strong{font-weight:550;min-width:0}.notice{font-size:.95rem;color:var(--accent);margin:0 0 22px}.login-surface{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start;width:100%}.login-heading{padding-top:26px}.login-heading h1{font-size:clamp(2rem,3.5vw,3rem)}.login-form{background:var(--white);border:1px solid var(--line);padding:34px;border-radius:6px}.field{margin-bottom:24px}.field label{display:block;font-size:.95rem;font-weight:600;margin-bottom:9px}.field input{width:100%;height:52px;border:1px solid #a7b7c1;border-radius:3px;padding:12px;background:white;color:var(--ink)}.field input[aria-invalid=true]{border-color:#a33732}.login-form .button{width:100%;margin-top:4px}.form-help{font-size:.875rem;color:var(--muted);line-height:1.7;margin:20px 0}.back-link{font-size:.9rem;text-underline-offset:4px}.error-summary{background:#fff1ef;color:#8b2927;border-left:3px solid #a33732;padding:13px;font-size:.9rem;line-height:1.6;margin-bottom:24px}.skip-link{position:absolute;top:-100px;padding:15px;background:var(--ink);color:white}.skip-link:focus{top:0;z-index:2}
.field-help{font-size:.8rem;line-height:1.65;color:var(--muted);margin:10px 0 0}.error-summary p{margin:0 0 8px}.error-summary ul{margin:0;padding-left:20px}.form-help a{text-underline-offset:4px;font-weight:600}
@media(max-width:720px){.page{padding:0 24px}.header{height:90px}.brand{font-size:2.1rem}main{padding:50px 0 60px}.home-surface{padding-left:24px}.eyebrow{margin-bottom:24px}.login-surface{grid-template-columns:1fr;gap:24px}.login-heading{padding-top:0}.login-heading .description{margin-bottom:0}.login-form{padding:24px}.footer{flex-direction:column;gap:10px}.account-line{flex-direction:column;gap:8px}}