:root {
    --bg: #1A1A1B;
    --card-bg: #252526;
    --card-hover: #2D2D2E;
    --text: #E0E0E0;
    --text-light: #A0A0A0;
    --accent: #3498db;
    --video-accent: #e74c3c;
    --border: #333333;
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
    --radius: 8px;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

.header {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
}

.site-title {
    font-size: 1.8rem;
    color: var(--text);
    font-weight: 600;
}

.main {
    max-width: 1200px;
    margin: var(--spacing-lg) auto;
    padding: 0 var(--spacing-lg);
}

.columns-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.project-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.section-title {
    font-size: 1.5rem;
    color: var(--text);
    font-weight: 600;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
}

.project-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    border: 1px solid var(--border);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    background: var(--card-hover);
}

.thumb-wrapper {
    position: relative;
}

.project-thumb {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.video-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(231, 76, 60, 0.9);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.project-content {
    padding: var(--spacing-sm);
}

.project-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.project-desc {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.project-link {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.project-link:hover {
    text-decoration: underline;
    color: #5dade2;
}

.footer {
    text-align: center;
    padding: var(--spacing-md);
    color: var(--text-light);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
    margin-top: var(--spacing-lg);
}

.footer div a {
    color: #fff;
}

@media (max-width: 768px) {
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .main {
        padding: 0 var(--spacing-md);
        margin: var(--spacing-md) auto;
    }

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