:root {
            --primary-color: #0d1b2a;
            --secondary-color: #1b263b;
            --accent-color: #415a77;
            --text-color: #e0e1dd;
            --light-accent: #778da9;
        }
        body { background-color: var(--primary-color); color: var(--text-color); font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        .navbar { background-color: var(--secondary-color) !important; }
        .navbar-brand, .nav-link { color: var(--text-color) !important; }
        .nav-link:hover { color: var(--light-accent) !important; }
        .hero { height: 70vh; min-height: 500px; position: relative; overflow: hidden; }
        .carousel-item { height: 70vh; background-size: cover; background-position: center; position: relative; }
        .carousel-item::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(135deg, rgba(13,27,42,0.8), rgba(65,90,119,0.6)); }
        .carousel-caption { background: rgba(27,38,59,0.9); border-radius: 15px; padding: 2rem; backdrop-filter: blur(10px); }
        .card { background-color: var(--secondary-color); border: 1px solid var(--accent-color); color: var(--text-color); }
        .card-header { background-color: var(--accent-color); color: var(--text-color); }
        .btn-primary { background-color: var(--accent-color); border-color: var(--accent-color); }
        .btn-primary:hover { background-color: var(--light-accent); border-color: var(--light-accent); }
        .section-padding { padding: 80px 0; }
        .stats { background-color: var(--accent-color); }
        .stats .card-body { text-align: center; font-size: 2rem; font-weight: bold; color: var(--text-color); }
        footer { background-color: var(--secondary-color); }
        .carousel-control-prev, .carousel-control-next { width: 5%; filter: invert(1); }
        .course-card { transition: transform 0.3s; }
        .course-card:hover { transform: translateY(-10px); }

   
       
 /* Gallery */
   .gallery-img { height: 200px; object-fit: cover; transition: transform 0.3s; border-radius: 8px; }
        .gallery-item:hover .gallery-img { transform: scale(1.05); }


        .testimonial { background: rgba(27,38,59,0.9); border-radius: 15px; padding: 1.5rem; border-left: 4px solid var(--accent-color); }

/* Why Choose Us - Dark Theme */
.feature-card {
    background: #212529; /* Matches Bootstrap bg-dark */
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.08);
    transition: 0.35s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: #0d6efd;
    box-shadow: 0 12px 30px rgba(13,110,253,0.25);
}

/* Icon Style */
.icon-box {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #0d6efd, #4ea8ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: auto;
}

.icon-box i {
    font-size: 32px;
    color: #fff;
}




/* Leadership Section */
.leader-card {
    background: #212529;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.08);
    transition: 0.35s ease;
}

.leader-card:hover {
    transform: translateY(-8px);
    border-color: #0d6efd;
    box-shadow: 0 12px 30px rgba(13,110,253,0.25);
}

.leader-img {
    width: 130px;
    height: 130px;
    object-fit: cover;
    border: 4px solid #0d6efd;
    padding: 4px;
    background: #212529;
}

.signature {
    width: 130px;
    filter: brightness(0) invert(1); /* Makes dark signature visible on dark bg */
}