:root {
    --primary-blue: #1a4f8b;
    --secondary-blue: #3a7cce;
    --accent-gold: #FFD700;
    --light-blue: #e8f1ff;
    --dark-text: #2d3748;
    --light-text: #718096;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

body {
    /* font-family: 'Poppins', sans-serif; */
    color: var(--dark-text);
    /* line-height: 1.6; */
    overflow-x: hidden;
    background: #f8fafc;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, rgba(26, 79, 139, 0.548) 0%, rgba(58, 125, 206, 0.27) 100%), 
        url('./img/unnamed.webp') 
        no-repeat center center/cover;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
    padding: 2rem;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' ... %3E");
    opacity: 0.5;
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 2;
}
.hero-content h1 {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    animation: fadeInDown 1.2s ease-out;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
}
.hero-content p {
    font-size: 1.5rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 1.2s ease-out 0.3s both;
    font-weight: 300;
}

.hero-badge {
    display: inline-block;
    background: var(--accent-gold);
    color: var(--primary-blue);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: fadeIn 1s ease-out 0.6s both;
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
}
.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeIn 1s ease-out 0.9s both;
}
.btn-primary-2 {
    background: linear-gradient(to right, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border: none;
    padding: 0.9rem 2.2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    box-shadow: 0 5px 15px rgba(58, 124, 206, 0.4);
}
.btn-primary-2:hover {
    background: linear-gradient(to right, var(--secondary-blue), var(--primary-blue));
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(58, 124, 206, 0.5);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    padding: 0.9rem 2.2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}
.btn-outline:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
    animation: fadeInUp 1s ease-out 1.2s both;
}
.stat-item { text-align: center; }
.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 0.5rem;
}
.stat-label {
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}
.scroll-indicator span {
    display: block;
    width: 30px;
    height: 30px;
    border-bottom: 2px solid var(--white);
    border-right: 2px solid var(--white);
    transform: rotate(45deg);
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background-color: var(--white);
    overflow: hidden;
}
.about-content {
    /* max-width: 900px; */
    margin: 0 auto;
    text-align: center;
}
.about-content h2 {
    color: var(--primary-blue);
    margin-bottom: 2.5rem;
    font-weight: 700;
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
}
.about-content h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-blue), var(--secondary-blue));
}
.about-content p {
    text-align: justify;
    font-size: 1.15rem;
    margin-bottom: 2rem;
}
.highlight {
    background: linear-gradient(120deg, var(--light-blue) 0%, rgba(255,255,255,0) 100%);
    color: var(--primary-blue);
    padding: 0 8px;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition);
}
.highlight:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 79, 139, 0.2);
}

/* Institutes Section */
.institutes-section {
    padding: 6rem 0;
    background: linear-gradient(to bottom, var(--light-blue) 0%, #f9fbff 100%);
}
.section-title {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--primary-blue);
}
.section-title h2 {
    font-weight: 800;
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    position: relative;
}
.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-blue), var(--secondary-blue));
}
.section-title p {
    font-size: 1.2rem;
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}
.institute-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    height: 100%;
    border: none;
}
.card-img-container { height: 220px; overflow: hidden; }
.card-img-top {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}
.institute-card:hover .card-img-top { transform: scale(1.1); }
.card-body { padding: 2rem; }
.card-title {
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 1.4rem;
}
.card-subtitle {
    color: var(--secondary-blue);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 1.2rem;
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--light-blue);
    border-radius: 50px;
}
.card-text {
    color: var(--light-text);
    margin-bottom: 1.8rem;
    font-size: 1rem;
}
.btn-view {
    background: linear-gradient(to right, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border: none;
    padding: 0.7rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 5px 15px rgba(58, 124, 206, 0.3);
}
.btn-view:hover {
    background: linear-gradient(to right, var(--secondary-blue), var(--primary-blue));
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(58, 124, 206, 0.5);
}
.btn-view i { transition: var(--transition); }
.btn-view:hover i { transform: translateX(4px); }

/* Animations */
@keyframes fadeInDown { from {opacity:0; transform:translateY(-50px);} to {opacity:1; transform:translateY(0);} }
@keyframes fadeInUp { from {opacity:0; transform:translateY(50px);} to {opacity:1; transform:translateY(0);} }
@keyframes fadeIn { from {opacity:0;} to {opacity:1;} }
@keyframes bounce {
    0%,20%,50%,80%,100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-20px) translateX(-50%); }
    60% { transform: translateY(-10px) translateX(-50%); }
}

/* Utility animations */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 992px) {
    .hero-content h1 { font-size: 3.2rem; }
    .hero-content p { font-size: 1.3rem; }
}
@media (max-width: 768px) {
    .hero-content h1 { font-size: 2.8rem; }
    .hero-content p { font-size: 1.2rem; }
    .card-body { padding: 1.5rem; }
}
@media (max-width: 576px) {
    .hero-content h1 { font-size: 2.2rem; letter-spacing: 2px; }
    .hero-content p { font-size: 1.1rem; }
    .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
    .stat-item { flex: 0 0 calc(50% - 1.5rem); }
    .hero-cta { flex-direction: column; align-items: center; }
    .btn-primary-2, .btn-outline { width: 100%; max-width: 280px; justify-content: center; }
}