/* Google Login Button Styles */
.social-login {
    margin-top: 40px;
    text-align: center;
}

.social-login-text {
    color: #666;
    margin-bottom: 25px;
    position: relative;
    font-size: 14px;
    font-weight: 500;
}

.social-login-text::before,
.social-login-text::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 35%;
    height: 1px;
    background: linear-gradient(to right, transparent, #ddd, transparent);
}

.social-login-text::before {
    left: 0;
}

.social-login-text::after {
    right: 0;
}

.social-login-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

a.google-login-btn,
a.facebook-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    min-width: 160px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
}

/* Hiệu ứng hover nâng cao */
.google-login-btn:hover,
.facebook-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Hiệu ứng active */
.google-login-btn:active,
.facebook-login-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Màu nền và hiệu ứng gradient */
.google-login-btn {
    background: linear-gradient(135deg, #DB4437 0%, #C23321 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.google-login-btn:hover {
    background: linear-gradient(135deg, #E55A4E 0%, #D73C28 100%);
}

.facebook-login-btn {
    background: linear-gradient(135deg, #4267B2 0%, #365899 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.facebook-login-btn:hover {
    background: linear-gradient(135deg, #5578C4 0%, #4267B2 100%);
}

/* Hiệu ứng ripple khi click */
.google-login-btn::before,
.facebook-login-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.google-login-btn:active::before,
.facebook-login-btn:active::before {
    width: 300px;
    height: 300px;
}

.google-login-btn i,
.facebook-login-btn i {
    margin-right: 10px;
    font-size: 18px;
    transition: transform 0.3s ease;
}

.google-login-btn:hover i,
.facebook-login-btn:hover i {
    transform: scale(1.1);
}

.google-login-btn span,
.facebook-login-btn span {
    font-size: 14px;
    letter-spacing: 0.3px;
}

/* Responsive design */
@media (max-width: 480px) {
    .social-login-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    a.google-login-btn,
    a.facebook-login-btn {
        width: 100%;
        max-width: 280px;
    }
}

/* Hiệu ứng loading cho button */
.social-login-btn-loading {
    pointer-events: none;
    opacity: 0.7;
}

.social-login-btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}