.login-container {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 1rem;
    }
    .login-card {
      width: 100%;
      max-width: 440px;
      background: var(--color-bg-elevated);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
    }
    .login-logo {
      font-family: var(--font-mono);
      font-size: 1.5rem;
      font-weight: 700;
      letter-spacing: 0.15em;
      color: var(--color-accent);
      text-align: center;
      margin-bottom: 0.25rem;
    }
    .login-tagline {
      text-align: center;
      color: var(--color-text-secondary);
      font-size: 0.9rem;
      margin-bottom: 2rem;
    }

    /* Google Sign-In container */
    #google-btn-container {
      width: 100%;
      display: flex;
      justify-content: center;
      min-height: 44px;
    }
    .google-error {
      background: rgba(255, 59, 48, 0.1);
      border: 1px solid rgba(255, 59, 48, 0.3);
      color: #ff3b30;
      padding: 0.5rem 1rem;
      border-radius: var(--radius-md);
      font-size: 0.85rem;
      margin-top: 0.75rem;
      display: none;
    }

    .login-divider {
      display: flex;
      align-items: center;
      margin: 1.5rem 0;
      color: var(--color-text-secondary);
      font-size: 0.8rem;
    }
    .login-divider::before,
    .login-divider::after {
      content: '';
      flex: 1;
      border-bottom: 1px solid var(--color-border);
    }
    .login-divider span {
      padding: 0 1rem;
    }

    .login-tabs {
      display: flex;
      border-bottom: 1px solid var(--color-border);
      margin-bottom: 1.5rem;
      gap: 0;
    }
    .login-tab {
      flex: 1;
      padding: 0.5rem 1rem;
      background: none;
      border: none;
      color: var(--color-text-secondary);
      font-family: var(--font-mono);
      font-size: 0.85rem;
      font-weight: 600;
      cursor: pointer;
      border-bottom: 2px solid transparent;
      transition: all 150ms;
    }
    .login-tab.active {
      color: var(--color-accent);
      border-bottom-color: var(--color-accent);
    }
    .login-tab:hover:not(.active) {
      color: var(--color-text);
    }
    .tab-content {
      display: none;
    }
    .tab-content.active {
      display: block;
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--color-text-secondary);
      margin-bottom: 0.25rem;
    }
    .form-group input {
      width: 100%;
      padding: 12px 16px;
      background: var(--color-bg);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      color: var(--color-text);
      font-family: var(--font-body);
      font-size: 0.95rem;
      transition: border-color 150ms;
      box-sizing: border-box;
    }
    .form-group input:focus {
      outline: none;
      border-color: var(--color-accent);
    }
    .login-btn {
      width: 100%;
      padding: 12px;
      background: var(--color-accent);
      color: #fff;
      border: none;
      border-radius: var(--radius-md);
      font-family: var(--font-body);
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: opacity 150ms;
    }
    .login-btn:hover {
      opacity: 0.9;
    }
    .login-btn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }
    .login-error {
      background: rgba(255, 59, 48, 0.1);
      border: 1px solid rgba(255, 59, 48, 0.3);
      color: #ff3b30;
      padding: 0.5rem 1rem;
      border-radius: var(--radius-md);
      font-size: 0.85rem;
      margin-bottom: 1rem;
      display: none;
    }
    .login-success {
      background: rgba(40, 200, 64, 0.1);
      border: 1px solid rgba(40, 200, 64, 0.3);
      color: var(--color-success);
      padding: 1rem;
      border-radius: var(--radius-md);
      font-size: 0.9rem;
      text-align: center;
      display: none;
    }
    .login-links {
      text-align: center;
      margin-top: 1.5rem;
      font-size: 0.85rem;
      color: var(--color-text-secondary);
    }
    .login-links a {
      color: var(--color-accent);
      text-decoration: none;
    }
    .login-links a:hover {
      text-decoration: underline;
    }
    .spinner {
      display: inline-block;
      width: 16px;
      height: 16px;
      border: 2px solid rgba(255,255,255,0.3);
      border-top-color: #fff;
      border-radius: 50%;
      animation: spin 0.6s linear infinite;
      margin-right: 8px;
      vertical-align: middle;
    }
    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    .pw-toggle-wrap { position: relative; }
    .pw-toggle { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; color: var(--color-text-secondary); padding: 4px; }
    .pw-toggle:hover { color: var(--color-text); }

    /* Mobile responsive */
    @media (max-width: 768px) {
      .login-container {
        min-height: auto;
        padding: 1.5rem 1rem;
        align-items: flex-start;
        padding-top: max(1.5rem, env(safe-area-inset-top));
      }
      .login-card {
        padding: 1.75rem 1.5rem;
      }
      .login-btn {
        min-height: 48px;
        padding: 14px;
        font-size: 1rem;
      }
      .form-group input {
        font-size: 16px; /* prevents iOS zoom-on-focus */
        min-height: 48px;
      }
    }
    @media (max-width: 480px) {
      .login-card {
        padding: 1.5rem 1.25rem;
        border-radius: var(--radius-md);
      }
      .login-tab {
        font-size: 0.75rem;
        padding: 0.5rem 0.5rem;
      }
      .login-tagline { font-size: 0.85rem; }
    }