:root{
      --app-bg: #f6f7fb;
      --app-surface: #ffffff;
      --app-text: #111827;
      --app-muted: #6b7280;
      --app-border: rgba(17,24,39,.10);
      --app-shadow: 0 14px 40px rgba(17,24,39,.12);
      --app-radius: 18px;
    }

    body.hold-transition.login-page{
      background:
        radial-gradient(900px 500px at 15% 10%, rgba(99,102,241,.14), transparent 55%),
        radial-gradient(900px 500px at 85% 5%, rgba(34,197,94,.12), transparent 60%),
        var(--app-bg);
      color: var(--app-text);
    }

    .auth-shell{
      min-height: 100vh;
      display: grid;
      place-items: center;
      padding: 24px 16px;
    }

    .auth-card{
      width: min(420px, 100%);
      background: rgba(255,255,255,.92);
      border: 1px solid var(--app-border);
      border-radius: var(--app-radius);
      box-shadow: var(--app-shadow);
      backdrop-filter: blur(10px);
      overflow: hidden;
    }

    .auth-top{
      padding: 22px 22px 10px;
    }

    .app-brand{
      display: inline-flex;
      align-items: center;
      gap: .55rem;
      font-weight: 800;
      letter-spacing: .2px;
    }
    .app-brand .dot{
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: linear-gradient(135deg, #6366f1, #22c55e);
      box-shadow: 0 6px 16px rgba(99,102,241,.35);
    }
    .auth-title{
      margin: .65rem 0 0;
      font-size: 1.1rem;
      font-weight: 700;
    }
    .auth-subtitle{
      margin: .25rem 0 0;
      color: var(--app-muted);
      font-size: .92rem;
    }

    .auth-body{
      padding: 12px 22px 22px;
    }

    .field{
      position: relative;
    }
    .field .form-control{
      height: 44px;
      padding-left: 44px;
      border-radius: 12px;
      border-color: rgba(17,24,39,.14);
    }
    .field .icon{
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: rgba(17,24,39,.45);
      pointer-events: none;
    }

    .btn-primary{
      border-radius: 12px;
      height: 44px;
      font-weight: 700;
    }

    .auth-footer{
      padding-top: 14px;
      border-top: 1px solid rgba(17,24,39,.08);
      margin-top: 14px;
      color: var(--app-muted);
      font-size: .85rem;
      text-align: center;
    }