:root {
    --bg-color: #f7f4ee;
    --card-bg: #ffffff;
    --sidebar-bg: #efebe4;
    --primary: #5c1827;
    --primary-hover: #3d0f19;
    --accent: #b8860b;
    --text: #2c2a29;
    --text-muted: #65605b;
    --border: #dfd9ce;
    --radius: 6px;
}

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

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text);
    line-height: 1.6;
}

header {
    background-color: var(--primary);
    color: #ffffff;
    padding: 2.5rem 1.5rem;
    border-bottom: 4px solid var(--accent);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
}

.logo-title {
    font-family: 'Merriweather', serif;
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-subtitle {
    font-size: 1rem;
    color: #e5d5c5;
    margin-top: 0.3rem;
    font-weight: 400;
}

.foundation-badge {
    display: inline-block;
    margin-top: 0.8rem;
    background: rgba(255, 255, 255, 0.12);
    padding: 0.35rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: #f3ece6;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.layout-container {
    max-width: 1280px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
}

aside.sidebar {
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    height: fit-content;
}

.sidebar-title {
    font-family: 'Merriweather', serif;
    font-size: 1.15rem;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
}

.nav-list {
    list-style: none;
}

.nav-list li {
    margin-bottom: 0.4rem;
}

.nav-list a {
    display: block;
    padding: 0.6rem 0.8rem;
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.nav-list a:hover {
    background-color: var(--primary);
    color: #ffffff;
}

.nav-list a.active {
    background-color: var(--primary);
    color: #ffffff;
    font-weight: 600;
}

/* Main Content Area */
main.content {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
}

.content-title {
    font-family: 'Merriweather', serif;
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.category-description, .intro-text {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    line-height: 1.7;
}

.links-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.link-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    background-color: #faf8f5;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.link-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}

.link-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.6rem;
}

.link-title {
    font-family: 'Merriweather', serif;
    font-size: 1.2rem;
    color: var(--primary);
}

.tag {
    background-color: #e8e2d5;
    color: #4a443e;
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
    font-weight: 600;
    text-transform: uppercase;
}

.link-description {
    font-size: 0.95rem;
    color: var(--text);
    margin-bottom: 1.2rem;
}

.btn-visit {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background-color: var(--primary);
    color: #ffffff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.btn-visit:hover {
    background-color: var(--primary-hover);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.category-card {
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.06);
    border-color: var(--accent);
}

.category-card h3 {
    font-family: 'Merriweather', serif;
    color: var(--primary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.category-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

footer {
    background-color: #23201e;
    color: #b0a8a0;
    padding: 2.5rem 1.5rem;
    margin-top: 4rem;
    border-top: 3px solid var(--accent);
    font-size: 0.9rem;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-info h4 {
    color: #ffffff;
    font-family: 'Merriweather', serif;
    margin-bottom: 0.3rem;
}

@media (max-width: 868px) {
    .layout-container {
        grid-template-columns: 1fr;
    }

    .logo-title {
        font-size: 1.9rem;
    }

    main.content {
        padding: 1.5rem;
    }

    .link-header {
        flex-direction: column;
        align-items: flex-start;
    }
}