:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --border: #2a2e3b;
    --text: #e4e6eb;
    --text-muted: #9199a8;
    --accent: #6366f1;
}

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

body {
    font-family: -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    padding: 2rem;
}

header {
    margin-bottom: 2rem;
}

h1 { font-size: 1.75rem; font-weight: 600; }

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

.project-card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.15s ease;
}

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

.project-card h2 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.project-description {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.back-link { color: var(--text-muted); text-decoration: none; font-size: 0.875rem; }

.language-row {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    text-decoration: none;
    color: var(--text);
}

.language-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.progress-bar {
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    transition: width 0.3s ease;
}

.language-meta {
    margin-top: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.btn {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    margin-top: 1rem;
}