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

body {
    font-family: Roboto, sans-serif;
    background-color: #eef4f1;
    color: #2b2b2b;
}

nav {
    background-color: #1f5c44;
    padding: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: #eaf4ef;
    text-decoration: none;
}

header {
    background-color: #3b7d5a;
    color: #ffffff;
    text-align: center;
    padding: 2rem 1rem;
}

main {
    padding: 1.5rem;
}

#gallery-intro {
    max-width: 900px;
    margin: 0 auto 2rem;
    text-align: center;
}

#gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

figure {
    background-color: #ffffff;
    padding: 0.5rem;
    border: 1px solid #d8e3dc;
    cursor: pointer;
}

figure img {
    width: 100%;
    display: block;
    object-fit: cover;
    aspect-ratio: 16/9;
}

figcaption {
    text-align: center;
    margin-top: 0.5rem;
    color: #6b4f3a;
}

dialog {
    margin: auto;
    border: none;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 0;
}

dialog figure {
    background-color: #ffffff;
    padding: 1rem;
    max-width: 95vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#modal-img {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
}

#modal-caption {
    margin-top: 0.5rem;
    text-align: center;
    color: #6b4f3a;
}

#modal-close {
    margin-top: 0.5rem;
    background-color: #3b7d5a;
    color: #ffffff;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
}

#gallery figure:hover {
    transform: scale(1.02);
    transition: transform 0.2s ease;
}

footer {
    background-color: #1f5c44;
    color: #eaf4ef;
    text-align: center;
    padding: 1.25rem;
    margin-top: 3rem;
}

@media (min-width: 500px) {
    #gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 800px) {
    #gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    #gallery {
        grid-template-columns: repeat(4, 1fr);
    }
}