/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --dark-green: #1a4d3a;
    --light-green: #2d6a4f;
    --accent-green: #66bb6a;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --dark-gray: #333333;
    --gold: #d4af37;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background-color: var(--white);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-bottom: 3px solid var(--accent-green);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 80px;
}

.logo-container {
    display: flex;
    align-items: center;
    padding: 10px 0;
    transition: transform 0.3s ease;
}

.logo-container:hover {
    transform: scale(1.05);
}

.logo {
    height: 65px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.navbar {
    display: flex;
    align-items: center;
    position: relative;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 5px;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu > li > a {
    color: var(--dark-green);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s ease;
    border-radius: 5px;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 14px;
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--accent-green);
    transition: width 0.3s ease;
}

.nav-menu > li > a:hover::after,
.nav-menu > li.dropdown:hover > a::after {
    width: calc(100% - 36px);
}

.nav-menu > li > a:hover {
    color: var(--accent-green);
    background-color: rgba(26, 77, 58, 0.1);
}

.nav-menu > li > a.active {
    color: var(--accent-green);
    background-color: rgba(26, 77, 58, 0.15);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 5px);
    left: 0;
    background-color: var(--white);
    list-style: none;
    min-width: 220px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 0;
    border-radius: 8px;
    overflow: hidden;
    border-top: 3px solid var(--accent-green);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

.dropdown-menu a {
    color: var(--dark-gray);
    padding: 14px 20px;
    display: block;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 14px;
}

.dropdown-menu a:hover {
    background: linear-gradient(135deg, var(--light-green), var(--dark-green));
    color: var(--white);
    padding-left: 25px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    gap: 5px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--dark-green);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Banner Section */
.banner-section {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.video-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(26, 77, 58, 0.6), rgba(26, 77, 58, 0.4));
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-content {
    text-align: center;
    color: var(--white);
    z-index: 2;
}

.banner-title {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    color: var(--white);
    outline: none;
}

.banner-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    color: var(--white);
    outline: none;
}

/* Vision, Mission and Core Values - Homepage */
.vmv-section {
    background: var(--white);
}

.vmv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 420px;
}

.vmv-text-panel {
    background: linear-gradient(135deg, var(--dark-green) 0%, #1a5d3a 100%);
    color: var(--white);
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.vmv-heading {
    color: var(--gold);
    font-size: 1.6rem;
    margin: 0 0 12px;
}

.vmv-heading:not(:first-child) {
    margin-top: 28px;
}

.vmv-text-panel p {
    font-size: 1.05rem;
    line-height: 1.75;
    margin: 0;
    color: rgba(255, 255, 255, 0.95);
}

.vmv-values-panel {
    background: var(--white);
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.vmv-values-title {
    color: var(--dark-green);
    font-size: 1.8rem;
    margin: 0 0 24px;
}

.vmv-image-wrap {
    width: 100%;
    max-width: 520px;
}

.vmv-image-wrap img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.vmv-values-fallback {
    display: none;
    list-style: none;
    padding: 0;
    margin: 0;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
    width: 100%;
    text-align: left;
}

.vmv-values-fallback li {
    background: var(--light-gray);
    color: var(--dark-green);
    font-weight: 600;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
}

/* Welcome Section */
.welcome-section {
    padding: 80px 0;
    background-color: var(--white);
}

.welcome-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.welcome-text h2 {
    color: var(--dark-green);
    font-size: 2.5rem;
    margin-bottom: 25px;
    border-left: 5px solid var(--accent-green);
    padding-left: 20px;
}

.welcome-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--dark-gray);
    text-align: justify;
}

.welcome-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.welcome-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Facts Section */
.facts-section {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
}

.facts-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('images/bcsifambd.jpeg');
    background-size: cover;
    background-position: center;
    filter: blur(0px);
    z-index: 0;
}

.facts-backdrop::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 77, 58, 0.8);
}

.facts-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.facts-video {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.facts-video-player {
    width: 100%;
    height: auto;
    display: block;
}

.facts-info {
    color: var(--white);
}

.facts-info h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--white);
}

.facts-list {
    list-style: none;
}

.facts-list li {
    font-size: 1.3rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.facts-list li:hover {
    transform: translateX(10px);
    background-color: rgba(212, 175, 55, 0.2);
}

.facts-list i {
    color: var(--accent-green);
    font-size: 1.5rem;
}

/* Courses Section */
.courses-section {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-green);
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: var(--accent-green);
}

.courses-marquee {
    overflow: hidden;
    position: relative;
    padding: 20px 0;
    touch-action: pan-y;
}

.section-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    will-change: opacity, transform;
}

.section-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.courses-track {
    display: flex;
    gap: 30px;
    width: fit-content;
    transition: transform 0.3s ease-out;
    cursor: grab;
}

.courses-track.dragging {
    transition: none;
    cursor: grabbing;
}

/* Marquee animation removed - using swipe functionality instead */
/* @keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
} */

.course-item {
    position: relative;
    min-width: 300px;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.course-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(26, 77, 58, 0.9), transparent);
    padding: 30px 20px 20px;
    color: var(--white);
}

.course-overlay h3 {
    font-size: 1.5rem;
    margin: 0;
}

/* Swipe Navigation Controls */
.courses-section {
    position: relative;
}

.swipe-nav-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(26, 77, 58, 0.8);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
    z-index: 10;
}

.swipe-nav-button:hover {
    background-color: rgba(26, 77, 58, 0.95);
}

.swipe-nav-button.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.swipe-nav-button.disabled:hover {
    background-color: rgba(26, 77, 58, 0.8);
}

.swipe-nav-button.prev {
    left: 10px;
}

.swipe-nav-button.next {
    right: 10px;
}

.scroll-top-btn {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background-color: rgba(26, 77, 58, 0.95);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.22);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 1000;
}

.scroll-top-btn.visible {
    opacity: 1;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background-color: rgba(26, 77, 58, 1);
}

@media (max-width: 768px) {
    .swipe-nav-button {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
    
    .swipe-nav-button.prev {
        left: 5px;
    }
    
    .swipe-nav-button.next {
        right: 5px;
    }
}

/* News Section */
.news-section {
    padding: 80px 0;
    background-color: var(--white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
    align-items: stretch;
}

.news-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--white);
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.no-news-msg {
    text-align: center;
    color: var(--dark-gray);
    padding: 40px 20px;
}
.no-news-msg a {
    color: var(--dark-green);
    text-decoration: none;
}
.no-news-msg a:hover {
    text-decoration: underline;
}

/* Facebook-style image grid for news items */
.news-item .news-item-img-wrap {
    width: 100%;
    background: var(--light-gray);
}
.news-card-images-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4px;
    padding: 8px;
}
.news-card-img-item {
    position: relative;
    width: 100%;
    height: 190px;
    border-radius: 6px;
    overflow: hidden;
}
.news-card-img-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-card-img-count {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
}

.news-content {
    padding: 25px;
}

.news-title {
    color: var(--dark-green);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.news-subtitle {
    color: var(--dark-gray);
    margin-bottom: 15px;
    line-height: 1.6;
}

.read-more {
    color: var(--light-green);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: var(--accent-green);
}

.admin-controls {
    text-align: center;
    margin-top: 30px;
}

.btn-upload {
    background-color: var(--dark-green);
    color: var(--white);
    border: none;
    padding: 12px 30px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-upload:hover {
    background-color: var(--light-green);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    position: relative;
}

.close {
    color: var(--dark-gray);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 20px;
    top: 20px;
}

.close:hover {
    color: var(--dark-green);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-green);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 2px solid var(--light-gray);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--dark-green);
}

.btn-submit {
    background-color: var(--dark-green);
    color: var(--white);
    border: none;
    padding: 12px 30px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s ease;
}

.btn-submit:hover {
    background-color: var(--light-green);
}

/* Footer */
.footer {
    background-color: var(--dark-green);
    color: var(--white);
    padding: 40px 0;
    margin-top: 50px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-info h3 {
    margin-bottom: 10px;
    color: var(--accent-green);
}

.footer-info p {
    color: var(--white);
    opacity: 0.9;
}

.footer-meta {
    text-align: right;
}

.footer-meta p {
    color: var(--white);
    opacity: 0.8;
    font-size: 0.9rem;
    margin-bottom: 5px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 20px;
    }

    .nav-menu {
        gap: 3px;
    }

    .nav-menu > li > a {
        padding: 10px 14px;
        font-size: 13px;
    }
}

@media (max-width: 968px) {
    .vmv-grid {
        grid-template-columns: 1fr;
    }

    .vmv-text-panel,
    .vmv-values-panel {
        padding: 36px 28px;
    }

    .welcome-content,
    .facts-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .banner-title {
        font-size: 2.5rem;
    }

    .banner-subtitle {
        font-size: 1.2rem;
    }

    .nav-menu > li > a {
        padding: 10px 12px;
        font-size: 12px;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0;
    }

    .header-container {
        padding: 0 20px;
        min-height: 70px;
        position: relative;
    }

    .logo {
        height: 55px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .navbar {
        position: relative;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: 20px 0;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.4s ease;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        border-top: 2px solid var(--accent-green);
    }

    .nav-menu.active {
        max-height: 600px;
        padding: 20px 0;
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(26, 77, 58, 0.1);
    }

    .nav-menu > li > a {
        padding: 15px 25px;
        width: 100%;
        justify-content: space-between;
        border-radius: 0;
        font-size: 15px;
        color: var(--dark-green);
    }

    .nav-menu > li > a::after {
        display: none;
    }

    .nav-menu > li > a:hover {
        background-color: rgba(26, 77, 58, 0.1);
        color: var(--accent-green);
        padding-left: 30px;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        margin-top: 0;
        margin-left: 20px;
        margin-right: 20px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        border-top: none;
        border-left: 3px solid var(--accent-green);
        border-radius: 0;
        box-shadow: none;
        background-color: rgba(26, 77, 58, 0.05);
    }

    .dropdown.active .dropdown-menu {
        max-height: 500px;
        margin-top: 0;
        margin-bottom: 10px;
    }

    .dropdown-menu a {
        color: var(--dark-green);
        padding: 12px 25px;
    }

    .dropdown-menu a:hover {
        background-color: rgba(26, 77, 58, 0.15);
        color: var(--accent-green);
        padding-left: 30px;
    }

    .banner-section {
        height: 450px;
    }

    .banner-title {
        font-size: 2.2rem;
        padding: 0 20px;
    }

    .banner-subtitle {
        font-size: 1.1rem;
        padding: 0 20px;
    }

    .vmv-text-panel,
    .vmv-values-panel {
        padding: 28px 20px;
    }

    .vmv-heading {
        font-size: 1.35rem;
    }

    .vmv-values-title {
        font-size: 1.5rem;
    }

    .welcome-text h2 {
        font-size: 2rem;
    }

    .facts-info h2 {
        font-size: 2rem;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .footer-meta {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 15px;
    }

    .logo {
        height: 50px;
    }

    .banner-section {
        height: 350px;
    }

    .banner-title {
        font-size: 1.8rem;
    }

    .banner-subtitle {
        font-size: 0.95rem;
    }

    .welcome-text h2 {
        font-size: 1.8rem;
    }

    .facts-info h2 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .course-item {
        min-width: 250px;
        height: 350px;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }
}