:root {
    --primary-blue: #004a7c;
    --secondary-blue: #0077b6;
    --accent-blue: #ade8f4;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --dark-blue: #023e8a;
    --text-dark: #1d1d1f;
    --text-light: #f5f5f7;
    --glass: rgba(255, 255, 255, 0.8);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    letter-spacing: 1px;
}

/* Hero Section */
.hero {
    height: 80vh;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 10%;
    color: var(--white);
    margin-top: 60px;
    position: relative;
    clip-path: ellipse(150% 100% at 50% 0%);
}

.hero h1 {
    font-size: 5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    letter-spacing: -2px;
    animation: fadeInUp 1s ease-out;
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero p {
    font-size: 1.1rem;
    max-width: 600px;
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem 2rem;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

/* Gallery Section */
.gallery-container {
    padding: 8rem 5%;
    background: var(--white);
}

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

.section-title h3 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    position: relative;
    display: inline-block;
}

.section-title h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--secondary-blue);
    border-radius: 2px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.gallery-item:hover {
    transform: translateY(-10px) scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

/* Footer */
footer {
    padding: 4rem 5%;
    background: var(--primary-blue);
    color: var(--white);
    text-align: center;
}

.footer-content h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.copyright {
    margin-top: 2rem;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
/* Lightbox (Modal) */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.lightbox.active img {
    transform: scale(1);
}

.close-btn {
    position: absolute;
    top: 30px;
    right: 40px;
    color: white;
    font-size: 50px;
    font-weight: 200;
    cursor: pointer;
    line-height: 1;
    transition: transform 0.3s ease;
}

.close-btn:hover {
    transform: scale(1.2);
    color: var(--accent-blue);
}