:root {
    --bg: #ede6d6;
    --accent-dark: #4a5a24;
}

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

body {
    font-family: 'IM Fell DW Pica', serif;
    background-color: var(--bg);
    color: var(--accent-dark);
    min-height: 100vh;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

.homepage {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 1.8rem 3.5rem 0.5rem;
}

.header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-line {
    flex: 1;
    height: 2px;
    background: var(--accent-dark);
}

.site-title {
    font-family: 'Imbue', serif;
    font-optical-sizing: auto;
    font-size: 3.8rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.nav-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 1fr;
    gap: 1.8rem;
    margin: 2.5rem 0 2rem;
    align-items: start;
}

.nav-card {
    position: relative;
    overflow: visible;
    cursor: pointer;
    display: block;
}

.nav-card-image {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    display: block;
}

.nav-card-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    position: absolute;
    top: 6px;
    left: 32px;
    right: 32px;
    z-index: 4;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.nav-card-line {
    flex: 1;
    height: 2px;
    background: var(--accent-dark);
}

.nav-card-label {
    font-size: 1.3rem;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.nav-card:hover .nav-card-header,
.nav-card:focus-visible .nav-card-header {
    opacity: 1;
}

.nav-card::before {
    content: '';
    position: absolute;
    bottom: 12px;
    left: 32px;
    right: 32px;
    height: 2px;
    background: var(--accent-dark);
    opacity: 0;
    transition: opacity 0.4s ease 0.1s;
    pointer-events: none;
    z-index: 3;
}

.nav-card:hover::before {
    opacity: 1;
}

.nav-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    aspect-ratio: 3 / 4;
    pointer-events: none;
}

.nav-card-overlay::before,
.nav-card-overlay::after {
    content: '';
    position: absolute;
    background: var(--accent-dark);
    width: 2px;
    top: 32px;
    bottom: 32px;
    opacity: 0;
    transition: opacity 0.4s ease 0.1s;
}

.nav-card-overlay::before {
    left: 12px;
}

.nav-card-overlay::after {
    right: 12px;
}

.nav-card:hover .nav-card-overlay::before,
.nav-card:hover .nav-card-overlay::after,
.nav-card:focus-visible .nav-card-overlay::before,
.nav-card:focus-visible .nav-card-overlay::after {
    opacity: 1;
}

.nav-card:focus-visible {
    outline: 2px solid var(--accent-dark);
    outline-offset: 3px;
}

.description {
    text-align: center;
    max-width: 680px;
    margin: 1.5rem auto 2rem;
    font-size: 1.15rem;
    line-height: 1.75;
}

.footer-line {
    height: 2px;
    background: var(--accent-dark);
    margin-top: auto;
}

.source {
    text-align: center;
    font-size: 0.85rem;
    margin-top: 0.6rem;
    margin-bottom: 0.8rem;
}

.section-page {
    min-height: 100vh;
}

.section-nav {
    display: flex;
    align-items: center;
    padding: 1.2rem 3.5rem;
    gap: 1.2rem;
    border-bottom: 2px solid var(--accent-dark);
}

.home-link {
    font-size: 1.05rem;
    white-space: nowrap;
    transition: opacity 0.3s;
}

.home-link:hover {
    opacity: 0.7;
}

.nav-links {
    display: flex;
    gap: 2.2rem;
    list-style: none;
    margin-left: auto;
}

.nav-links a {
    font-size: 1rem;
    transition: opacity 0.3s;
    white-space: nowrap;
}

.nav-links a:hover {
    opacity: 0.7;
}

.nav-links a.active {
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.section-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3.5rem 3rem 4rem;
}

@media (max-width: 768px) {
    .homepage {
        padding: 1.5rem 1.5rem 1rem;
    }

    .header {
        gap: 1rem;
    }

    .site-title {
        font-size: 2.4rem;
    }

    .nav-grid {
        grid-template-columns: 1fr;
        gap: 0;
        margin: 1.5rem 0;
    }

    .nav-card {
        aspect-ratio: 4 / 3;
    }

    .nav-card-header,
    .nav-card::before,
    .nav-card-overlay::before,
    .nav-card-overlay::after {
        opacity: 1;
    }

    .description {
        font-size: 1.05rem;
        padding: 0 0.5rem;
        margin-bottom: 1.5rem;
    }

    .section-nav {
        flex-wrap: wrap;
        padding: 1rem 1.5rem;
        gap: 0.8rem;
    }

    .nav-links {
        gap: 1.2rem;
        flex-wrap: wrap;
    }

    .nav-links a {
        font-size: 0.95rem;
    }

    .section-content {
        padding: 2rem 1.5rem 3rem;
    }
}

@media (max-width: 480px) {
    .site-title {
        font-size: 2rem;
    }

    .header-line {
        display: none;
    }

    .header {
        justify-content: center;
    }

    .nav-card {
        aspect-ratio: 3 / 2;
    }

    .nav-links {
        gap: 0.8rem;
    }
}