:root{--bg:#0a0b0d;--panel:#131518;--line:rgba(255,255,255,.1);--text:#f3f2ed;--muted:#858b8e;--acid:#c9ff43;--red:#ff6c70;--mono:"DM Mono",monospace;--sans:"Noto Sans KR",sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 15%,rgba(201,255,67,.1),transparent 30%),var(--bg);color:var(--text);font-family:var(--sans)}.auth-shell{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr}.auth-copy{padding:clamp(38px,7vw,110px);display:flex;flex-direction:column;justify-content:center;border-right:1px solid var(--line)}.auth-brand{position:absolute;top:38px;color:var(--text);text-decoration:none;font:500 13px var(--mono);letter-spacing:.12em}.auth-brand b,.auth-copy em,.eyebrow,.auth-switch a{color:var(--acid)}.auth-copy p{margin:0 0 20px;color:var(--acid);font:10px var(--mono);letter-spacing:.18em}.auth-copy h1{margin:0;font-size:clamp(52px,7vw,96px);line-height:.98;letter-spacing:-.075em}.auth-copy em{font-style:normal}.auth-copy span{margin-top:30px;color:var(--muted);font-size:12px}.auth-card{width:min(430px,calc(100% - 48px));margin:auto;padding:38px;border:1px solid var(--line);background:rgba(19,21,24,.88)}.eyebrow{margin:0 0 9px;font:10px var(--mono);letter-spacing:.16em}.auth-card h2{margin:0 0 28px;font-size:28px}.auth-form{display:grid;gap:17px}.auth-form label span,.auth-form label small{display:block}.auth-form label span{margin-bottom:8px;color:#a4a8a9;font-size:11px}.auth-form label small{margin-top:6px;color:#62686a;font-size:9px}.auth-form input{width:100%;height:46px;border:1px solid var(--line);outline:0;padding:0 13px;background:#0e1012;color:var(--text);font:12px var(--mono)}.auth-form input:focus{border-color:var(--acid)}.auth-form button,.standalone-button{height:48px;margin-top:6px;border:1px solid var(--acid);background:var(--acid);color:#11130c;font-weight:700;cursor:pointer}.auth-form button:disabled,.standalone-button:disabled{opacity:.45}.standalone-button{width:100%;margin:0 0 22px}.recovery-form{padding-top:22px;border-top:1px solid var(--line)}.auth-switch{margin:23px 0 0;color:var(--muted);font-size:11px}.auth-switch a{text-decoration:none}.auth-message{display:none;margin:-12px 0 18px;padding:11px;border:1px solid rgba(255,108,112,.25);color:var(--red);font-size:11px}.auth-message.show{display:block}.auth-message.success{border-color:rgba(201,255,67,.3);color:var(--acid)}.recovered-account{margin-top:20px;padding:14px;border:1px solid rgba(201,255,67,.3);color:var(--acid);font-size:12px}.recovered-account strong{display:block;margin-top:5px;font:500 16px var(--mono)}@media(max-width:800px){.auth-shell{grid-template-columns:1fr}.auth-copy{min-height:330px;border-right:0;border-bottom:1px solid var(--line)}.auth-brand{top:24px}.auth-copy h1{font-size:50px}.auth-card{margin:40px auto}}