.login-container {
    background: var(--theme-gradient-primary);
    border-radius: var(--theme-radius-xl);
    overflow: hidden;
    box-shadow: var(--theme-shadow-md);
    margin: 40px 0;
}

.login-image-col {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    padding: 2rem;
    background: var(--theme-gradient-primary);
}

.login-form-col {
    padding: 2.5rem;
    background: var(--theme-bg-white);
}

.login-image-col img {
    border-radius: var(--theme-radius-lg);
    box-shadow: var(--theme-shadow-sm);
    max-width: 100%;
    height: auto;
    animation: slideInLeft 0.6s ease-out;
}

.login-title {
    background: var(--theme-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--theme-text-muted);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.login-form-group {
    margin-bottom: 1.25rem;
}

.login-form-group label {
    font-weight: 600;
    color: var(--theme-text-dark);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.login-form-group label i {
    color: var(--theme-primary);
    width: 18px;
}

.login-input-group {
    border: 2px solid var(--theme-border-light);
    border-radius: var(--theme-radius-md);
    overflow: hidden;
    display: flex;
    transition: all 0.3s ease;
}

.login-input-group:focus-within {
    border-color: var(--theme-primary);
    box-shadow: var(--theme-shadow-primary);
}

.login-input-group .input-group-text {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.05) 100%);
    border: none;
    color: var(--theme-primary);
    font-weight: 600;
    padding: 0.75rem 1rem;
    width: auto !important;
    font-size: 0.9rem;
}

.login-input-group .form-control {
    border: none;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 500;
}

.login-input-group .form-control:focus {
    box-shadow: none;
    background-color: var(--theme-bg-focus);
}

.login-input-group .form-control::placeholder {
    color: var(--theme-text-light);
    font-weight: 500;
}

.login-form-check {
    background-color: var(--theme-bg-light);
    padding: 0.75rem;
    border-radius: var(--theme-radius-md);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--theme-primary);
}

.login-form-check-input {
    width: 1.25em;
    height: 1.25em;
    border: 2px solid var(--theme-border-light);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.15em;
    margin-right: 0.5rem;
}

.login-form-check-input:checked {
    background-color: var(--theme-primary);
    border-color: var(--theme-primary);
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

.login-form-check-label {
    cursor: pointer;
    user-select: none;
    font-size: 0.95rem;
}

.btn-login {
    background: var(--theme-gradient-primary);
    border: none;
    border-radius: var(--theme-radius-md);
    padding: 0.85rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--theme-text-white);
    transition: all 0.3s ease;
    box-shadow: var(--theme-shadow-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
}

.btn-login:hover {
    background: var(--theme-gradient-primary-reverse);
    transform: translateY(-2px);
    box-shadow: var(--theme-shadow-primary-lg);
    color: var(--theme-text-white);
}

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

.btn-secondary-link {
    background: var(--theme-bg-light);
    border: 2px solid var(--theme-border-light);
    border-radius: var(--theme-radius-md);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--theme-primary);
    transition: all 0.3s ease;
    display: inline-block;
    width: 100%;
    text-align: center;
    text-decoration: none;
}

.btn-secondary-link:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--theme-primary);
    color: var(--theme-primary);
    transform: translateY(-2px);
}

.login-links {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--theme-border-light);
}

.login-links p {
    color: var(--theme-text-muted);
    font-size: 0.95rem;
    margin: 0.75rem 0;
}

.login-links a {
    color: var(--theme-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.login-links a:hover {
    color: var(--theme-primary-dark);
    border-bottom-color: var(--theme-primary-dark);
}

.text-danger {
    animation: slideDown 0.3s ease-out;
    font-weight: 500;
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.validation-summary-errors {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: var(--theme-radius-md);
    padding: 1rem;
    margin-bottom: 1.5rem;
    color: #721c24;
}

.validation-summary-errors ul {
    margin: 0;
    padding-left: 1.5rem;
}

.validation-summary-errors li {
    font-weight: 500;
    font-size: 0.95rem;
}

.alert-danger {
    background-color: #f8d7da;
    border: 2px solid #f5c6cb;
    border-radius: var(--theme-radius-md);
    color: #721c24;
    padding: 1rem;
    font-weight: 500;
}

.alert-danger .btn-close {
    opacity: 0.5;
}

.alert-danger .btn-close:hover {
    opacity: 1;
}

.alert-danger i {
    color: #dc3545;
}

.alert-danger strong {
    color: #721c24;
    font-weight: 700;
}

.alert-danger div {
    color: #721c24;
    font-size: 0.9rem;
    line-height: 1.5;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@media (max-width: 768px) {
    .login-container {
        border-radius: var(--theme-radius-lg);
        margin: 20px 0;
    }

    .login-container .row {
        flex-direction: column;
    }

    .login-image-col {
        order: -1;
        min-height: 280px;
        padding: 1.5rem;
    }

    .login-image-col img {
        max-height: 200px;
    }

    .login-form-col {
        padding: 1.5rem;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .login-input-group .form-control {
        font-size: 16px;
    }

    .btn-login {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }
}

/* -- Social Login Section -- */
.social-login-section {
    margin-top: 1.5rem;
}

.social-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.social-divider::before,
.social-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--theme-border-light, #e0e0e0);
}

.social-divider span {
    color: var(--theme-text-muted, #6c757d);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.72rem 1.25rem;
    border-radius: var(--theme-radius-md, 0.5rem);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease;
    border: 1.5px solid #dadce0;
    background: #fff;
    color: #3c4043;
    cursor: pointer;
    margin-bottom: 0.65rem;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
}

.btn-social:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0,0,0,0.12);
    color: #3c4043;
}

.btn-social:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.btn-social .social-provider-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    font-size: 1.15rem;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
}

.btn-social .social-provider-label {
    flex: 1;
    text-align: center;
    margin-right: 20px;
}

.btn-google:hover {
    border-color: #4285F4;
    box-shadow: 0 4px 14px rgba(66,133,244,0.22);
}

.btn-microsoft:hover {
    border-color: #00a4ef;
    box-shadow: 0 4px 14px rgba(0,164,239,0.22);
}