*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
  :root{
    --brand:#00BCD4;--brand-dark:#006064;--brand-light:#E0F7FA;
    --surface:#fff;--bg:#F1F5F9;--border:#E2E8F0;--text:#0F172A;
    --muted:#64748B;--muted2:#94A3B8;--green:#22C55E;--red:#EF4444;
    --r:12px;--r-full:9999px;
  }
  body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--bg);min-height:100vh;
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    padding:32px 20px;-webkit-font-smoothing:antialiased}

  .login-wrap{display:flex;flex-direction:row;width:100%;max-width:1060px;
    border-radius:20px;overflow:hidden;box-shadow:0 25px 50px rgba(0,0,0,0.12)}

  .login-left{flex:1;min-width:0;background:linear-gradient(140deg,#022831 0%,#073138 50%,#0E4E58 100%);
    padding:36px 32px;display:flex;flex-direction:column;gap:0;
    position:relative;overflow:hidden}
  .login-left::before{content:'';position:absolute;inset:0;
    background:radial-gradient(ellipse 80% 60% at 70% 50%,rgba(0,188,212,.2),transparent 60%),
               radial-gradient(ellipse 50% 70% at 10% 90%,rgba(34,211,238,.12),transparent 50%)}
  .login-left::after{content:'';position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:28px 28px}
  .left-inner{position:relative;z-index:1;flex:1}
  .brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}
  .brand-name{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.3px}
  .brand-sub{font-size:11px;color:#94A3B8;margin-top:1px}
  .left-headline{font-size:24px;font-weight:800;color:#fff;line-height:1.25;
    letter-spacing:-.4px;margin-bottom:10px}
  .left-headline span{background:linear-gradient(135deg,#22D3EE,#67E8F9);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
  .left-desc{font-size:12.5px;color:#94A3B8;line-height:1.6;margin-bottom:16px}
  .feat-list{display:flex;flex-direction:column;gap:7px}
  .feat-item{display:flex;align-items:flex-start;gap:9px;font-size:12px;color:rgba(255,255,255,.75);line-height:1.45}
  .feat-dot{width:24px;height:24px;background:rgba(255,255,255,.08);border-radius:7px;
    display:flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0;margin-top:1px}
  .left-footer{font-size:11px;color:#475569;position:relative;z-index:1;margin-top:auto;padding-top:20px}

  .login-right{width:420px;flex-shrink:0;background:var(--surface);padding:36px 36px;
    display:flex;flex-direction:column;justify-content:center;position:relative;overflow-y:auto}
  .back-home{position:absolute;top:20px;left:40px;display:inline-flex;align-items:center;
    gap:5px;font-size:12px;font-weight:600;color:var(--muted);text-decoration:none;
    transition:color .2s;z-index:1}
  .back-home:hover{color:var(--brand)}
  .back-home svg{width:13px;height:13px;flex-shrink:0}
  .login-title{font-size:22px;font-weight:800;color:var(--text);
    letter-spacing:-.4px;margin-bottom:6px}
  .login-sub{font-size:13px;color:var(--muted);margin-bottom:28px}

  .id-tabs{display:flex;gap:4px;background:var(--bg);border-radius:10px;padding:4px;margin-bottom:24px}
  .id-tab{flex:1;padding:8px;border:none;background:none;border-radius:7px;
    font-size:13px;font-weight:600;font-family:inherit;cursor:pointer;
    color:var(--muted);transition:all .15s}
  .id-tab.active{background:#fff;color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.08)}

  .field{margin-bottom:16px}
  .field label{display:block;font-size:11px;font-weight:700;color:var(--muted);
    text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
  .pwd-wrap{position:relative}
  .pwd-toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);
    background:none;border:none;cursor:pointer;color:var(--muted);font-size:13px;
    font-weight:600;padding:4px;font-family:inherit}
  .pwd-toggle:hover{color:var(--text)}
  .field input{width:100%;padding:11px 14px;border:1.5px solid var(--border);
    border-radius:var(--r);font-size:14px;font-family:inherit;color:var(--text);
    outline:none;transition:border-color .2s,box-shadow .2s;background:var(--surface)}
  .field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,188,212,.1)}
  .field input::placeholder{color:var(--muted2)}
  .pwd-wrap input{padding-right:60px}

  .hint{font-size:11px;color:var(--muted);margin-top:6px}

  .status-msg{font-size:12.5px;padding:10px 14px;border-radius:8px;margin-bottom:14px;display:none}
  .status-error{background:#FEF2F2;color:#991B1B;border:1px solid #FECACA}
  .status-ok{background:#F0FDF4;color:#166534;border:1px solid #BBF7D0}
  .status-info{background:#EFF6FF;color:#1E40AF;border:1px solid #BFDBFE}

  .btn-primary{width:100%;padding:12px;border:none;border-radius:var(--r);
    background:linear-gradient(135deg,var(--brand-dark),var(--brand));
    color:#fff;font-size:14px;font-weight:700;font-family:inherit;cursor:pointer;
    transition:all .2s;box-shadow:0 2px 8px rgba(0,188,212,.3)}
  .btn-primary:hover:not(:disabled){transform:translateY(-1px);
    box-shadow:0 4px 16px rgba(0,188,212,.4)}
  .btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none}

  .spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.35);
    border-top-color:#fff;border-radius:50%;animation:spin .65s linear infinite;
    display:inline-block;vertical-align:middle;margin-right:6px}
  @keyframes spin{to{transform:rotate(360deg)}}

  .step{display:none}.step.active{display:block}

  @media(max-width:700px){
    .login-wrap{flex-direction:column;max-width:420px}
    .login-left{padding:28px 24px;min-height:auto}
    .feat-list{display:none}
    .login-right{width:100%;padding:28px 24px}
  }