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

body {
    background: linear-gradient(45deg, #ff7eb9, #ff758c);
    font-family: 'Raleway', sans-serif;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.header {
    text-align: center;
    color: white;
    margin-bottom: 3rem;
}

.header h1 {
    font-family: 'Great Vibes', cursive;
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    cursor: pointer;
    aspect-ratio: 1;
}

.gallery-item:hover {
    transform: translateY(-5px);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.close-btn {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.close-btn:hover {
    transform: rotate(90deg);
}

.heart {
    position: fixed;
    color: #ff4081;
    font-size: 1.5rem;
    animation: float 6s linear infinite;
    opacity: 0;
    pointer-events: none;
}

@keyframes float {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) scale(1.5);
        opacity: 0;
    }
}

.anniversary-date {
    text-align: center;
    font-size: 1.2rem;
    color: white;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .header h1 {
        font-size: 3rem;
    }
}