:root {
    --primary-color: #1a5276;
    --secondary-color: #2980b9;
    --accent-color: #e74c3c;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --nav-height: 100px;
    --top-nav-height: 50px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

.header-top {
    background-color: var(--primary-color);
    color: var(--bg-white);
    padding: 12px 0;
    font-size: 14px;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-contact {
    display: flex;
    gap: 25px;
}

.header-contact span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-nav {
    background-color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 24px;
}

.school-name {
    font-size: 18px;
    font-weight: 700;
    color: white;
    line-height: 1.3;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu li a {
    font-weight: 500;
    color: white;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s ease;
}

.nav-menu li a:hover {
    color: #e3f2fd;
}

.nav-menu li a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: 0.3s;
}

.hero {
    position: relative;
    height: calc(100vh - var(--nav-height));
    min-height: 500px;
    overflow: hidden;
    scroll-margin-top: var(--nav-height);
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

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

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 82, 118, 0.8) 0%, rgba(41, 128, 185, 0.6) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    padding: 20px;
}

.slide-overlay h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.slide-overlay p {
    font-size: 1.5rem;
    max-width: 600px;
}

.hero-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.hero-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.3);
    border: 2px solid white;
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-btn:hover {
    background-color: white;
    color: var(--primary-color);
}

.hero-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background-color: white;
    transform: scale(1.2);
}

.section {
    padding: 80px 0;
    scroll-margin-top: var(--nav-height);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: 2px;
}

.section-title p {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 20px auto 0;
}

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

.about-image {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

.about-content h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-content p {
    margin-bottom: 15px;
    color: var(--text-dark);
    line-height: 1.8;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.value-card {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.value-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
}

.value-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.academics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.academic-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.academic-card:hover {
    transform: translateY(-5px);
}

.academic-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.academic-content {
    padding: 25px;
}

.academic-content h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.academic-content ul {
    list-style: disc;
    padding-left: 20px;
    color: var(--text-dark);
}

.academic-content ul li {
    margin-bottom: 8px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card {
    position: relative;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.advantage-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.advantage-content {
    padding: 25px;
}

.advantage-content h3 {
    color: var(--primary-color);
    margin-bottom: 12px;
    font-size: 1.2rem;
}

.advantage-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.life-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.life-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.life-card:hover {
    transform: translateY(-8px);
}

.life-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.life-content {
    padding: 20px;
}

.life-content h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.life-content p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.staff-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.staff-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
    text-align: center;
}

.staff-card:hover {
    transform: translateY(-8px);
}

.staff-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: top;
}

.staff-info {
    padding: 20px;
}

.staff-info h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.staff-info .role {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.staff-info .email {
    color: var(--text-light);
    font-size: 0.85rem;
}

.admissions-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.admission-info {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.admission-info h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.admission-info ul {
    list-style: none;
}

.admission-info ul li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.admission-info ul li::before {
    content: '✓';
    color: var(--secondary-color);
    font-weight: bold;
}

.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.timeline-item {
    position: relative;
    padding-bottom: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-item h4 {
    color: var(--primary-color);
    margin-bottom: 8px;
}

.fee-structure {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 15px;
    padding: 30px;
    margin-top: 30px;
}

.fee-structure h3 {
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.fee-table {
    width: 100%;
}

.fee-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.fee-row:last-child {
    border-bottom: none;
    font-weight: bold;
    font-size: 1.1rem;
    padding-top: 15px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.4rem;
}

.info-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    align-items: flex-start;
}

.info-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.info-text h4 {
    color: var(--text-dark);
    margin-bottom: 5px;
}

.info-text p {
    color: var(--text-light);
}

.map-container {
    margin-top: 25px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.map-container iframe {
    width: 100%;
    height: 250px;
    border: none;
}

.contact-form {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.contact-form h3 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.4rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(26, 82, 118, 0.3);
}

footer {
    background: linear-gradient(135deg, var(--primary-color), var(--text-dark));
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.footer-about p {
    opacity: 0.8;
    line-height: 1.8;
}

.footer-links h4,
.footer-social h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links ul li a:hover {
    opacity: 1;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    opacity: 0.8;
    font-size: 0.9rem;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.mobile-menu {
    display: none;
}

@media (max-width: 992px) {
    .nav-menu {
        display: none;
    }

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

    .mobile-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--primary-color);
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        padding: 20px;
    }

    .mobile-menu.active {
        display: block;
    }

    .mobile-menu li {
        margin-bottom: 15px;
    }

    .mobile-menu li a {
        font-size: 1.1rem;
        color: white;
        font-weight: 500;
    }

    .about-grid,
    .contact-grid,
    .admissions-content {
        grid-template-columns: 1fr;
    }

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

    .advantages-grid,
    .life-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .staff-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero {
        height: 70vh;
    }

    .slide-overlay h1 {
        font-size: 2rem;
    }

    .slide-overlay p {
        font-size: 1.1rem;
    }
}

@media (max-width: 768px) {
    .header-top .container {
        flex-direction: column;
        gap: 10px;
    }

    .header-contact {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .advantages-grid,
    .life-grid,
    .values-grid,
    .staff-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-icons {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .section {
        padding: 50px 0;
    }

    .section-title h2 {
        font-size: 2rem;
    }
}