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

:root {
    --primary-color: #1a4d3a;
    --secondary-color: #2d7a5f;
    --accent-color: #d4af37;
    --gold-color: #f4d03f;
    --dark-color: #0d2818;
    --light-color: #f5f8f6;
    --white: #ffffff;
    --text-dark: #333;
    --text-light: #666;
    --gradient: linear-gradient(135deg, #1a4d3a 0%, #2d7a5f 50%, #1a4d3a 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Assistant', 'Heebo', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 77, 58, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(26, 77, 58, 0.98);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 50px;
    width: auto;
}

.logo-text h1 {
    font-size: 1.4rem;
    color: var(--white);
    margin: 0;
    font-weight: 700;
}

.logo-text p {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin: 0;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

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

.btn-nav {
    background: var(--accent-color);
    color: var(--dark-color) !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-nav:hover {
    background: var(--gold-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

.btn-nav::after {
    display: none !important;
}

/* Study button special style */
.btn-study {
    background: #4CAF50 !important;
    color: white !important;
}

.btn-study:hover {
    background: #45a049 !important;
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.4);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 2rem;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero logo */
.hero-logo {
    max-width: 200px;
    height: auto;
    margin-bottom: 2rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.4), 0 0 30px rgba(212, 175, 55, 0.3);
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 300;
    color: var(--accent-color);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    line-height: 1.8;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 3px solid transparent;
    display: inline-block;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.btn::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--dark-color);
    border-color: var(--accent-color);
}

.btn-primary:hover {
    background: var(--gold-color);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 12px 30px rgba(212, 175, 55, 0.6);
    color: var(--dark-color);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 3px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 12px 30px rgba(255,255,255,0.4);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 25px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--white);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(20px); opacity: 0; }
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    font-style: italic;
}

/* About Section */
.about {
    background: var(--light-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-logo-img {
    max-width: 300px;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

/* Centers Section */
.centers {
    background: var(--white);
}

.centers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.center-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-top: 5px solid var(--accent-color);
    position: relative;
    overflow: hidden;
}

.center-card::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.center-card:hover::before {
    opacity: 1;
}

.center-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    border-top-color: var(--gold-color);
}

.center-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: block;
}

.center-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.center-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.center-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.center-link:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

/* Video Section */
.video-section {
    background: var(--dark-color);
    padding: 4rem 0;
}

.video-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.video-placeholder {
    position: relative;
    padding-top: 56.25%;
    background: var(--gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.3s ease;
}

.video-placeholder:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
}

.video-placeholder p {
    position: absolute;
    bottom: 30px;
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 600;
}

/* Partners Section */
.partners {
    background: var(--light-color);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.partner-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.4s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.partner-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.2), transparent);
    transition: left 0.5s;
}

.partner-card:hover::before {
    left: 100%;
}

.partner-card:hover {
    background: var(--white);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    transform: translateY(-8px);
    border-color: var(--accent-color);
}

.partner-card img,
.partner-logo-img {
    max-width: 100px;
    height: auto;
    margin-bottom: 1rem;
}

.partner-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.partner-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.partner-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.partner-link:hover {
    color: var(--primary-color);
}

/* Gallery Section */
.gallery {
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 2rem;
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

/* Contact Section */
.contact {
    background: var(--light-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.contact-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

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

.contact-item a {
    color: var(--secondary-color);
    text-decoration: none;
}

.contact-item a:hover {
    color: var(--primary-color);
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--accent-color);
}

.footer-section p {
    line-height: 1.8;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: all 0.3s ease;
    padding: 0.3rem 0;
    position: relative;
    padding-left: 1rem;
}

.footer-section a::before {
    content: ">";
    position: absolute;
    left: 0;
    opacity: 0;
    transition: all 0.3s;
}

.footer-section a:hover {
    color: var(--accent-color);
    padding-left: 1.5rem;
}

.footer-section a:hover::before {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.7);
}

.footer-bottom a {
    color: var(--accent-color);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--gold-color);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-logo {
        max-width: 150px;
    }

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

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .nav-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem;
    }

    .logo-text h1 {
        font-size: 1.2rem;
    }

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

    .centers-grid,
    .partners-grid {
        grid-template-columns: 1fr;
    }

    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

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