:root {
    --teal: #48C1CF;
    --dark-grey: #1a1a1a;
    --light-text: #ffffff;
    --sub-text: #b0b0b0;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    align-items: center;
    margin: 0 auto 36px;
    max-width: 1100px;
}

.site-nav a {
    color: var(--sub-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    color: var(--teal);
}

.site-footer {
    text-align: center;
    margin: 80px auto 0;
    max-width: 1100px;
    font-size: 0.8rem;
    color: #555;
}

.site-footer p {
    margin: 6px 0;
}

button.gallery-item {
    display: block;
    width: 100%;
    padding: 0;
    margin: 0;
    text-align: left;
    font: inherit;
    color: inherit;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
}

button.close-btn {
    background: transparent;
    border: none;
    font: inherit;
    color: #fff;
    line-height: 1;
    padding: 0;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 3px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}