/* Base Styles & Variables */
:root {
    --primary-color: #3a57e8;
    --secondary-color: #6c757d;
    --dark-bg: #151b2c;
    --darker-bg: #111625;
    --light-text: #f8f9fa;
    --gray-text: #c2c7d0;
    --card-bg: #1e2640;
    --transition: all 0.3s ease;
    --navbar-bg: rgba(65, 77, 111, 0.85); /* Navbar background slightly different from main */
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #2845d1;
}

.section-title {
    position: relative;
    margin-bottom: 2.5rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.highlight {
    color: var(--primary-color);
}

section {
    padding: 100px 0;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #2845d1;
    border-color: #2845d1;
}

.btn-outline-light {
    color: var(--light-text);
    border-color: var(--light-text);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Navigation Styles */
.navbar {
    padding: 1rem 0;
    background-color: var(--navbar-bg);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--light-text);
}

.nav-link {
    color: var(--light-text) !important; 
    margin: 0 0.5rem;
    position: relative;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary-color); 
}

.nav-link:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover:after {
    width: 100%;
}
/* Footer */
.footer {
    background-color: var(--darker-bg);
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-logo span {
    font-weight: 600;
    font-size: 1.2rem;
    margin-left: 0.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.footer-social .social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
    transition: var(--transition);
    font-size: 1.2rem;
}

.footer-social .social-icon:hover {
    background-color: var(--primary-color);
    color: white;
}

.social-icon i {
    font-size: 1.5rem;
}

.footer-social .social-icon:hover i {
    color: white; 
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background-color: var(--primary-color);
    color: white;
}

.social-icon i {
    font-size: 1.2rem; 
}

.social-link {
    display: inline-block;
    font-size: 1.5rem;
    padding: 0.5rem;
    border-radius: 50%;
    background-color: var(--card-bg);
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
}

/* FontAwesome icon adjustments */
.social-link i {
    color: var(--light-text);
    font-size: 1.5rem;
}

.social-link:hover i {
    color: white;
}
.copyright {
    color: var(--gray-text);
    font-size: 0.9rem;
}

/* Responsive styles */
@media (max-width: 991.98px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }

    .hero-section .subtitle {
        font-size: 1.2rem;
    }

    .social-icons {
        flex-direction: row;
        bottom: -20px;
        top: auto;
        right: 50%;
        transform: translateX(50%);
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 767.98px) {
    section {
        padding: 70px 0;
    }

    .hero-section {
        text-align: center;
    }

    .hero-image {
        margin-top: 3rem;
    }

    .stats-row {
        margin-top: 3rem;
    }

    .stat-item {
        margin-bottom: 2rem;
    }

    .project-filters {
        flex-wrap: wrap;
    }

    .filter-btn {
        margin-bottom: 0.5rem;
    }
}