@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
    --bg-color: #f5f5dc;
    --bg-secondary: #e8e8c8;
    --text-color: #333;
    --text-muted: #666;
    --link-color: #0066cc;
    --border-color: #000;
    --accent-color: #8b4513;
    --card-bg: #fff;
    --font-main: "IBM Plex Mono", "Consolas", monospace;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    max-width: 1200px;
    margin: 10px auto;
    padding: 15px;
    border: 1px solid var(--border-color);
    font-size: 14px;
    line-height: 1.5;
}

/* Material Icons */
.material-icons {
    font-size: 18px;
    vertical-align: middle;
    margin-right: 4px;
}

/* Dense Navigation Bar */
.nav-bar {
    border-bottom: 1px solid var(--border-color);
    padding: 8px 0;
    margin-bottom: 15px;
    text-align: center;
    background: var(--bg-secondary);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 12px;
    flex-wrap: wrap;
}

.nav-bar a {
    margin: 3px 6px;
    text-decoration: none;
    color: var(--text-muted);
    display: inline-block;
    padding: 3px 6px;
    transition: all 0.2s;
}

.nav-bar a:hover {
    background: var(--accent-color);
    color: #fff;
}

.nav-bar .active {
    background: var(--text-color);
    color: #fff;
    padding: 3px 8px;
}

h1,
h2 {
    margin: 10px 0;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

h1 {
    font-size: 1.5em;
    text-align: center;
    background: linear-gradient(90deg, #8b4513, #a0522d);
    color: #fff;
    padding: 10px;
    border: 1px solid var(--border-color);
}

h2 {
    font-size: 1.1em;
    color: var(--text-muted);
}

/* Search & Filter Container */
.search-container {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
    align-items: center;
    background: var(--bg-secondary);
    padding: 10px;
    border: 1px solid var(--border-color);
}

.search-box {
    flex: 1;
    min-width: 200px;
    padding: 8px 12px;
    font-family: var(--font-main);
    font-size: 13px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
}

.search-box:focus {
    outline: none;
    border-color: var(--accent-color);
}

.search-box::placeholder {
    color: var(--text-muted);
}

.filter-btn {
    padding: 6px 12px;
    font-family: var(--font-main);
    font-size: 11px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-muted);
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.2s;
}

.filter-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-color);
}

.filter-btn.active {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 5px;
    width: 100%;
}

.results-count {
    font-size: 0.8em;
    color: var(--text-muted);
    margin-left: auto;
}

/* Grid Layout for Density */
.section-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

/* Dashboard Grid - with gaps */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 15px;
    max-width: 1000px;
    margin: 0 auto;
}

/* Compact Card Style */
.skill-card {
    border: 1px solid var(--border-color);
    padding: 12px;
    background: var(--card-bg);
    font-size: 0.9em;
    height: 100%;
    overflow: hidden;
    transition: border-color 0.2s;
    box-shadow: 2px 2px 0px #888;
}

.skill-card:hover {
    border-color: var(--accent-color);
}

.skill-card h3 {
    margin: 0 0 8px 0;
    font-size: 1em;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 5px;
    color: var(--text-color);
}

.skill-card a {
    color: var(--link-color);
    text-decoration: none;
}

.skill-card a:hover {
    text-decoration: underline;
    color: var(--accent-color);
}

.category {
    color: var(--text-muted);
    font-size: 0.8em;
    margin-bottom: 4px;
    display: block;
}

.description {
    margin: 5px 0;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Keywords / Tags */
.tag-link,
.tag {
    cursor: pointer;
    color: #fff;
    background: var(--text-muted);
    padding: 2px 6px;
    font-size: 0.7em;
    margin-right: 3px;
    text-decoration: none;
    display: inline-block;
    margin-top: 4px;
    transition: background 0.2s;
}

.tag-link:hover,
.tag:hover {
    background: var(--accent-color);
}

/* Learning Path Cards */
.path-card {
    border: 1px solid var(--border-color);
    padding: 15px;
    background: var(--card-bg);
    box-shadow: 2px 2px 0px #888;
}

.path-card h3 {
    margin: 0 0 10px 0;
    background: var(--bg-secondary);
    color: var(--accent-color);
    padding: 8px;
    font-size: 1em;
    border: 1px solid var(--border-color);
}

.path-card ul {
    margin: 0;
    padding-left: 20px;
    color: var(--text-muted);
}

.path-card li {
    margin: 4px 0;
    font-size: 0.9em;
}

/* Difficulty Badges */
.difficulty {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.7em;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: 5px;
}

.difficulty.beginner {
    background: #d4edda;
    color: #155724;
}

.difficulty.intermediate {
    background: #fff3cd;
    color: #856404;
}

.difficulty.advanced {
    background: #f8d7da;
    color: #721c24;
}

.difficulty.essential {
    background: #d1ecf1;
    color: #0c5460;
}

/* External Link Indicator */
.external-link::after {
    content: " >";
    font-size: 0.8em;
    color: var(--text-muted);
}

/* Hidden class for filtering */
.hidden {
    display: none !important;
}

/* No results message */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
    font-style: italic;
}

/* Dashboard Card Specific - Simple Text Style */
.dash-card {
    cursor: pointer;
    text-align: center;
    padding: 20px 15px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    transition: all 0.2s;
    box-shadow: 2px 2px 0px #888;
}

.dash-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.dash-card h3 {
    margin: 0 0 5px 0;
    font-size: 0.95em;
    font-weight: 600;
    color: var(--text-color);
    border: none;
}

.dash-card p {
    margin: 0;
    font-size: 0.8em;
    color: var(--text-muted);
}

/* Footer */
.footer {
    margin-top: 40px;
    text-align: center;
    font-size: 0.8em;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
    color: var(--text-muted);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    body {
        margin: 5px;
        padding: 10px;
        font-size: 13px;
    }

    h1 {
        font-size: 1.2em;
    }

    .nav-bar {
        padding: 8px 5px;
    }

    .nav-bar a {
        margin: 3px 4px;
        font-size: 10px;
    }

    .section-container {
        grid-template-columns: 1fr;
    }

    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .search-container {
        flex-direction: column;
    }

    .search-box {
        width: 100%;
    }

    .results-count {
        margin-left: 0;
        margin-top: 5px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1em;
    }

    .nav-bar a {
        font-size: 9px;
        margin: 2px 3px;
    }

    .dashboard-grid {
        grid-template-columns: 1fr 1fr;
    }
}