/* Navigation Styles */
.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.98) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-nav {
    gap: 0.5rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: #2c3e50 !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #fff !important;
    background: linear-gradient(135deg, #0d6efd 0%, #0dcaf0 100%);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #0d6efd;
    transition: width 0.3s ease;
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 80%;
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        background: white;
        padding: 1rem;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        margin-top: 1rem;
    }

    .nav-item {
        margin: 0.5rem 0;
    }

    .nav-link {
        text-align: center;
    }
}

/* Modal Styles */
#certificationModal .modal-dialog {
    max-width: 90%;
    margin: 1.75rem auto;
}

#certificationModal .modal-content {
    border-radius: 20px;
    overflow: hidden;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

#certificationModal .modal-header {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
    border-bottom: none;
    padding: 1.5rem;
}

#certificationModal .modal-title {
    font-weight: 600;
    font-size: 1.35rem;
}

#certificationModal .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

#certificationModal .btn-close:hover {
    opacity: 1;
}

#certificationModal .modal-body {
    padding: 2rem;
}

#certificationModal img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

#certificationModal h4 {
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

#certificationModal p {
    color: #6c757d;
    line-height: 1.8;
    font-size: 1.1rem;
}

/* Footer Styles */
.footer {
    background-color: #212529;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.footer-section h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(135deg, #0d6efd 0%, #0dcaf0 100%);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1rem;
    display: inline-block;
    position: relative;
}

.footer-section ul li a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-section ul li a::before {
    content: '→';
    margin-right: 0.5rem;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    position: absolute;
    left: -20px;
}

.footer-section ul li a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
    font-size: 0.9rem;
}

/* Responsive Footer */
@media (max-width: 991.98px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 575.98px) {
    .footer {
        padding: 3rem 0 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-section h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-section ul li a:hover {
        transform: translateX(0);
    }

    .footer-section ul li a::before {
        display: none;
    }
}