/* ===================================
   External Login Providers (Google, etc.)
   =================================== */

/* External Login Section */
.external-login-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--gray-200);
}

.external-login-title {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-700);
    position: relative;
}

.external-login-title::before,
.external-login-title::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30%;
    height: 1px;
    background: var(--gray-300);
}

.external-login-title::before {
    left: 0;
}

.external-login-title::after {
    right: 0;
}

.external-login-title span {
    background: var(--white);
    padding: 0 1rem;
    position: relative;
    z-index: 1;
}

/* External Login Buttons */
.external-login-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.external-login-form {
    width: 100%;
}

/* Google Login Button */
.google-login-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.google-login-btn:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.google-login-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.google-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.google-icon svg {
    width: 100%;
    height: 100%;
}

/* Facebook Login Button (for future use) */
.facebook-login-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: #1877f2;
    color: var(--white);
    border: 2px solid #1877f2;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.facebook-login-btn:hover {
    background: #166fe5;
    border-color: #166fe5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--white);
}

.facebook-icon {
    font-size: 1.5rem;
}

/* Microsoft Login Button (for future use) */
.microsoft-login-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.microsoft-login-btn:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.microsoft-icon {
    width: 24px;
    height: 24px;
}

/* Loading State */
.external-login-btn.loading {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

.external-login-btn.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    display: inline-block;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
}

/* Security Notice */
.external-login-notice {
    text-align: center;
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    border: 1px solid var(--gray-200);
}

.external-login-notice i {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.external-login-notice p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 576px) {
    .external-login-title::before,
    .external-login-title::after {
        width: 25%;
    }

    .google-login-btn,
    .facebook-login-btn,
    .microsoft-login-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }
}

/* Animation for external login buttons */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.external-login-buttons {
    animation: fadeInScale 0.5s ease 0.3s both;
}