/* -------------------------------------------------
   Global reset & basic typography
   ------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
                 Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}
a {
    color: #0066cc;
    text-decoration: none;
}
a:hover { text-decoration: underline; }

/* -------------------------------------------------
   Layout containers
   ------------------------------------------------- */
.site-header,
.site-footer {
    background-color: #004466;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}
.site-header h1 { margin-bottom: 0.5rem; }
.nav a {
    margin: 0 0.8rem;
    color: #cceeff;
    font-weight: 500;
}
.site-main { max-width: 960px; margin: 2rem auto; padding: 0 1rem; }

.intro,
.about-section { margin-bottom: 2.5rem; }
.intro h2,
.about-section h2,
.gallery-section h2 { margin-bottom: 0.8rem; }

/* -------------------------------------------------
   Gallery styling – responsive grid
   ------------------------------------------------- */
.gallery-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.gallery-grid figure {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}
.gallery-grid img {
    width: 100%;
    height: auto;
    display: block;
}
.gallery-grid figcaption {
    padding: 0.5rem;
    font-size: 0.9rem;
    text-align: center;
    background: #f8f8f8;
}

/* -------------------------------------------------
   Footer
   ------------------------------------------------- */
.site-footer p {
    font-size: 0.85rem;
}

/* -------------------------------------------------
   Media queries – tweak for very small screens
   ------------------------------------------------- */
@media (max-width: 480px) {
    .nav a { display: block; margin: 0.4rem 0; }
}