.login-container {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: calc(100vh - 160px);
      padding: 40px 0;
    }

    .login-card {
      width: 100%;
      max-width: 420px;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow);
    }

.login-header {
      text-align: center;
      margin-bottom: 32px;
    }

    .login-logo {
      height: 60px;
      width: auto;
      filter: drop-shadow(0 4px 12px rgba(var(--blue-900-rgb), 0.15));
    }

    .login-header h1 {
      font-size: 28px;
      margin: 16px 0 8px 0;
      color: var(--blue-900);
    }

    .login-header p {
      color: var(--muted);
      font-size: 15px;
      margin: 0;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 650;
      color: var(--ink);
      font-size: 14px;
    }

    .form-group input {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--panel);
      color: var(--ink);
      font-size: 15px;
      transition: all 0.2s ease;
      box-sizing: border-box;
    }

    .form-group input:focus {
      outline: none;
      border-color: var(--blue-600);
      box-shadow: 0 0 0 4px var(--focus);
    }

    .form-group input::placeholder {
      color: var(--muted);
    }

    .form-group input[disabled] {
      background: #eef2f7;
      color: #7b8798;
      cursor: not-allowed;
      border-color: #d4dbe6;
      box-shadow: none;
    }

    .target-select {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--panel);
      color: var(--ink);
      font-size: 15px;
      box-sizing: border-box;
    }

    .login-submit {
      width: 100%;
      padding: 12px 16px;
      margin-top: 24px;
      background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
      color: #fff;
      border: none;
      border-radius: 10px;
      font-weight: 750;
      font-size: 15px;
      cursor: pointer;
      transition: all 0.2s ease;
      box-shadow: 0 12px 28px rgba(var(--blue-600-rgb), 0.28);
    }

    .login-submit:hover:not(:disabled) {
      background: linear-gradient(135deg, var(--blue-700), var(--blue-600));
      box-shadow: 0 14px 32px rgba(var(--blue-600-rgb), 0.32);
    }

    .login-submit:focus {
      outline: none;
      box-shadow: 0 0 0 4px var(--focus);
    }

    .login-submit:disabled {
      opacity: 0.6;
      cursor: not-allowed;
    }

    .error-message {
      display: none;
      padding: 12px 14px;
      margin-bottom: 20px;
      background: rgba(220, 38, 38, 0.08);
      border: 1px solid rgba(220, 38, 38, 0.2);
      color: #7f1d1d;
      border-radius: 10px;
      font-size: 14px;
      animation: slideDown 0.3s ease;
    }

    .error-message.show {
      display: block;
    }

    .success-message {
      display: none;
      padding: 12px 14px;
      margin-bottom: 20px;
      background: rgba(34, 197, 94, 0.08);
      border: 1px solid rgba(34, 197, 94, 0.2);
      color: #15803d;
      border-radius: 10px;
      font-size: 14px;
      animation: slideDown 0.3s ease;
    }

    .success-message.show {
      display: block;
    }

    .loading-spinner {
      display: none;
      width: 16px;
      height: 16px;
      border: 2px solid rgba(255,255,255,0.3);
      border-top-color: #fff;
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
      margin-right: 8px;
    }

    .login-submit.loading {
      display: flex;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    .login-submit.loading .loading-spinner {
      display: inline-block;
    }

    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    @keyframes slideDown {
      from {
        opacity: 0;
        transform: translateY(-10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .login-footer {
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      text-align: center;
      color: var(--muted);
      font-size: 13px;
    }

    .login-footer a {
      color: var(--blue-700);
      text-decoration: none;
    }

    .login-footer a:hover {
      text-decoration: underline;
    }

    @media (max-width: 576px) {
      .login-card {
        padding: 28px;
      }

      .login-header h1 {
        font-size: 24px;
      }

      .login-container {
        min-height: auto;
        padding: 24px 0;
      }
    }