:root {
    --primary: #0d3b66;
    --secondary: #27ae60;
    --accent: #f39c12;
    --light: #f4f6f9;
    --dark: #2c3e50;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0,0,0,.12);
    --radius: 16px;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', 'Hind Siliguri', sans-serif;
}
body {
    line-height: 1.7;
    background: var(--light);
    color: var(--dark);
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0,0,0,.08);
    padding: 12px 0;
    animation: slideDown .5s ease;
}
@keyframes slideDown { from { transform: translateY(-100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.nav-container {
    max-width: 1300px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-logo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--secondary);
}
.nav-logo span {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}
.nav-menu {
    display: flex;
    gap: 4px;
    list-style: none;
    flex-wrap: wrap;
}
.nav-menu li a {
    padding: 8px 14px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    transition: .3s;
    color: var(--dark);
}
.nav-menu li a:hover, .nav-menu li a.active {
    background: var(--secondary);
    color: #fff;
}
.hamburger {
    display: none;
    font-size: 26px;
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
}

/* Hero */
.hero {
    margin-top: 70px;
    background: linear-gradient(135deg, #0d3b66, #1a5276, #2d8a4e);
    background-size: 300% 300%;
    animation: gradientMove 12s ease infinite;
    color: #fff;
    padding: 90px 20px 70px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
@keyframes gradientMove { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
.hero-logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    background: #fff;
    padding: 0px;
    box-shadow: 0 10px 30px rgba(0,0,0,.3);
    animation: pulse 2s ease infinite;
}
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
.hero h1 { font-size: 42px; font-weight: 800; margin-bottom: 10px; }
.hero .subtitle { font-size: 18px; opacity: .9; }

/* Marquee */
.marquee-wrap {
    background: var(--accent);
    color: #fff;
    overflow: hidden;
    padding: 12px 0;
    font-weight: 600;
}
.marquee-track {
    display: inline-block;
    white-space: nowrap;
    animation: marquee 40s linear infinite;
    padding-left: 100%;
}
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-100%); } }
.marquee-track span { margin-right: 50px; }

/* Sections */
.section { padding: 80px 20px; }
.section-title {
    text-align: center;
    margin-bottom: 50px;
}
.section-title h2 {
    font-size: 34px;
    color: var(--primary);
    margin-bottom: 8px;
}
.section-title .divider {
    width: 70px;
    height: 4px;
    background: var(--secondary);
    margin: 15px auto;
    border-radius: 4px;
}
.container { max-width: 1300px; margin: auto; }

/* Cards */
.card {
    background: #fff;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: transform .3s, box-shadow .3s;
}
.card:hover { transform: translateY(-8px); box-shadow: 0 15px 40px rgba(0,0,0,.15); }

/* Grids */
.vm-grid, .committee-grid, .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1100px;
    margin: auto;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px,1fr));
    gap: 25px;
    max-width: 1200px;
    margin: auto;
}
.service-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    border-bottom: 3px solid transparent;
    transition: .3s;
}
.service-card:hover { border-bottom-color: var(--secondary); transform: translateY(-5px); }
.service-card i { font-size: 40px; color: var(--secondary); margin-bottom: 15px; }

/* Fee Table */
.fee-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.fee-table th { background: var(--primary); color: #fff; padding: 15px; }
.fee-table td { padding: 12px; text-align: center; border-bottom: 1px solid #f0f0f0; }
.fee-note {
    background: #fef9e7;
    border-left: 4px solid var(--accent);
    padding: 15px;
    border-radius: 0 10px 10px 0;
    margin: 30px auto;
    max-width: 800px;
}

/* Staff */
.staff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px,1fr));
    gap: 25px;
    max-width: 1300px;
    margin: auto;
}
.staff-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    text-align: center;
    box-shadow: var(--shadow);
    transition: .3s;
}
.staff-card:hover { transform: translateY(-10px) scale(1.02); }
.staff-photo {
    width: 100%;
    height: 230px;
    object-fit: cover;
    background: #f0f0f0;
    border-bottom: 4px solid var(--secondary);
}
.staff-info { padding: 15px; }
.staff-info h4 { color: var(--primary); font-size: 16px; margin-bottom: 3px; }
.staff-info p { font-size: 13px; color: #777; }

/* Committee */
.committee-list { list-style: none; }
.committee-list li { padding: 10px 0; border-bottom: 1px solid #f0f0f0; }
.committee-list li strong { display: block; color: var(--primary); }
.committee-list li span { font-size: 13px; color: #777; }

/* Admission Form */
.form-wrapper {
    max-width: 900px;
    margin: auto;
    background: #fff;
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    border-top: 5px solid var(--secondary);
}
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.form-group { margin-bottom: 15px; }
.form-group label { font-size: 14px; font-weight: 600; display: block; margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 14px;
    transition: .3s;
}
.form-group input:focus, .form-group select:focus { border-color: var(--secondary); }
.payment-section {
    background: #f9fafb;
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    border: 2px solid #f0f0f0;
}
.payment-methods {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}
.payment-method {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 30px;
    cursor: pointer;
    font-size: 14px;
    transition: .3s;
}
.payment-method:hover { border-color: var(--secondary); background: #f0faf0; }
.submit-btn {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: #fff;
    border: none;
    padding: 16px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: .3s;
}
.submit-btn:hover { background: var(--primary); }

/* Animated Photo Slider */
.photo-slider {
    position: relative;
    max-width: 1200px;
    margin: auto;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: 0 15px 50px rgba(0,0,0,.2);
    height: 500px;
    background: #f0f0f0;
}
.photo-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.photo-slide img { width: 100%; height: 100%; object-fit: cover; }
.photo-slide.active { opacity: 1; }
.photo-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 55px;
    height: 55px;
    background: rgba(0,0,0,.4);
    border-radius: 50%;
    color: #fff;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: .3s;
    z-index: 10;
}
.photo-arrow:hover { background: var(--secondary); }
.photo-prev { left: 20px; }
.photo-next { right: 20px; }
.photo-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}
.photo-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255,255,255,.5);
    border: 2px solid #fff;
    cursor: pointer;
    transition: .3s;
}
.photo-dot.active { background: var(--accent); transform: scale(1.3); }

/* Contact */
.contact-section { background: linear-gradient(135deg, #0d3b66, #1a5276); color: #fff; }
.contact-card {
    background: rgba(255,255,255,.1);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    backdrop-filter: blur(5px);
    transition: .3s;
}
.contact-card:hover { background: rgba(255,255,255,.2); }
.contact-card i { font-size: 30px; color: var(--accent); margin-bottom: 15px; }
.contact-card a { display: block; color: rgba(255,255,255,.9); margin-top: 5px; }

/* Footer */
.footer { background: #0a2a3f; color: #a0c4d8; text-align: center; padding: 30px; font-size: 14px; }

/* Floating Buttons */
.float-buttons {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.float-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff;
    box-shadow: 0 6px 20px rgba(0,0,0,.3);
    transition: .3s;
    animation: bounceFloat 2s infinite;
}
@keyframes bounceFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.float-btn.whatsapp { background: #25d366; }
.float-btn.messenger { background: #0084ff; }
.float-btn:hover { transform: scale(1.15); }

/* Language Toggle */
.lang-tab { display: flex; justify-content: center; gap: 15px; margin-bottom: 30px; }
.lang-btn {
    padding: 10px 25px;
    border-radius: 30px;
    border: 2px solid var(--secondary);
    background: transparent;
    color: var(--secondary);
    font-weight: 600;
    cursor: pointer;
    transition: .3s;
}
.lang-btn.active { background: var(--secondary); color: #fff; }
.bn-text, .en-text { display: block; }
.bn-text.hide, .en-text.hide { display: none; }

/* Responsive */
/* Mobile Menu */
@media(max-width:992px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0,0,0,.1);
        z-index: 999;
        /* hidden by default */
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
    }
    
    /* active state */
    .nav-menu.active {
        display: flex !important;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .hamburger {
        display: block;
    }
}