body {
      font-family: 'Inter', sans-serif;
    }

    .auth-card {
      border-radius: 1.25rem;
      overflow: hidden;
      border: none;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.04), 0 24px 60px rgba(0, 0, 0, 0.10);
    }

    .left-panel {
      background-color: #0f172a;
      min-height: 520px;
    }

    .brand-icon-wrap {
      width: 40px;
      height: 40px;
      background-color: #2563eb;
      border-radius: 10px;
    }

    .feature-item .icon-circle {
      width: 28px;
      height: 28px;
      background-color: rgba(37, 99, 235, 0.2);
      border: 1px solid rgba(37, 99, 235, 0.4);
      border-radius: 50%;
      flex-shrink: 0;
    }

    .left-headline {
      font-size: 1.75rem;
      font-weight: 700;
      line-height: 1.3;
      letter-spacing: -0.02em;
    }

    /* Tabs */
    .tab-switcher {
      background-color: #f1f5f9;
      border-radius: 10px;
      padding: 4px;
    }

    .tab-switcher .nav-link {
      border-radius: 8px;
      color: #64748b;
      font-weight: 500;
      font-size: 0.9rem;
      padding: 0.55rem 1.25rem;
      border: none;
      transition: all 0.2s;
    }

    .tab-switcher .nav-link.active {
      background-color: #ffffff;
      color: #0f172a;
      box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
    }

    /* Inputs */
    .form-label {
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: #475569;
    }

    .form-control,
    .input-group-text {
      border-color: #e2e8f0;
      font-size: 0.9rem;
      border-radius: 0.625rem !important;
    }

    .form-control {
      padding: 0.65rem 0.9rem;
      color: #0f172a;
    }

    .form-control::placeholder {
      color: #94a3b8;
    }

    .form-control:focus {
      border-color: #2563eb;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    }

    .input-group-text {
      background-color: #f8fafc;
      border-right: none;
      color: #94a3b8;
      padding: 0 0.85rem;
    }

    .input-group .form-control {
      border-left: none;
    }

    .input-group .form-control:focus {
      border-left: none;
    }

    .input-group-text.end-addon {
      border-left: none;
      border-right: 1px solid #e2e8f0;
      cursor: pointer;
    }

    .input-group-text.end-addon:hover {
      color: #475569;
    }

    /* Buttons */
    .btn-auth {
      background-color: #0f172a;
      border: none;
      border-radius: 0.625rem;
      padding: 0.7rem 1rem;
      font-weight: 600;
      font-size: 0.9rem;
      transition: background-color 0.2s, transform 0.15s, box-shadow 0.2s;
    }

    .btn-auth:hover {
      background-color: #1e293b;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(15, 23, 42, 0.2);
    }

    .btn-auth:active {
      transform: translateY(0);
    }

    .btn-social {
      border: 1.5px solid #e2e8f0;
      border-radius: 0.625rem;
      background-color: #fff;
      font-size: 0.875rem;
      font-weight: 500;
      color: #0f172a;
      padding: 0.65rem;
      transition: all 0.2s;
    }

    .btn-social:hover {
      background-color: #f8fafc;
      border-color: #cbd5e1;
    }

    /* Divider */
    .or-divider {
      display: flex;
      align-items: center;
      color: #94a3b8;
      font-size: 0.8rem;
    }

    .or-divider::before,
    .or-divider::after {
      content: '';
      flex: 1;
      border-bottom: 1px solid #e2e8f0;
    }

    .or-divider span {
      padding: 0 0.85rem;
    }

    /* Misc */
    .forgot-link {
      font-size: 0.85rem;
      color: #64748b;
      text-decoration: none;
    }

    .forgot-link:hover {
      color: #2563eb;
    }

    .terms-label {
      font-size: 0.83rem;
      color: #475569;
      line-height: 1.6;
    }

    .terms-label a {
      color: #2563eb;
      text-decoration: none;
    }

    .terms-label a:hover {
      text-decoration: underline;
    }

    .switch-text {
      font-size: 0.85rem;
      color: #64748b;
    }

    .switch-text a {
      color: #2563eb;
      font-weight: 600;
      text-decoration: none;
    }

    .switch-text a:hover {
      text-decoration: underline;
    }

    .field-hint {
      font-size: 0.78rem;
      color: #94a3b8;
      margin-top: 0.3rem;
    }