*{box-sizing:border-box}
body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:#0f1115;color:#e7ebf2;font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans KR",sans-serif}
.box{width:344px;background:#171a21;border:1px solid #262b36;border-radius:14px;padding:28px}
.brand{font-size:20px;font-weight:700;text-align:center;margin-bottom:4px}.brand b{color:#e31427}
.sub{color:#9aa4b2;text-align:center;margin-bottom:18px;font-size:13px}
label{display:block;color:#9aa4b2;font-size:12px;margin:12px 0 5px}
input{width:100%;padding:11px 12px;background:#0f1115;border:1px solid #262b36;border-radius:9px;color:#e7ebf2;font-size:14px}
input:focus{outline:none;border-color:#e31427}
.btn{width:100%;margin-top:18px;padding:12px;background:#e31427;border:0;border-radius:9px;color:#fff;font-size:15px;font-weight:600;cursor:pointer}
.btn:disabled{opacity:.6}
.msg{margin-top:14px;color:#ff7a7a;font-size:13px;min-height:18px;text-align:center}
.msg.ok{color:#39d98a}
.foot{margin-top:16px;text-align:center;font-size:13px}.foot a{color:#9aa4b2;text-decoration:none}