body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #121213;
    color: #e0e0e0;
    line-height: 1.6;
    min-height: 100vh;
}

header {
    text-align: center;
    padding: 3rem 2rem 2rem;
    border-bottom: 1px solid #333;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    color: #3B82F6;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.1rem;
    color: #9ca3af;
    font-weight: 400;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

.intro {
    text-align: center;
    margin-bottom: 3rem;
}

.intro h2 {
    font-size: 1.5rem;
    color: #f3f4f6;
    margin-bottom: 1rem;
    font-weight: 500;
}

.intro p {
    font-size: 1rem;
    color: #9ca3af;
    max-width: 600px;
    margin: 0 auto;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background-color: #2d2d2d;
    border: 1px solid #404040;
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.project-card:hover {
    border-color: #3B82F6;
    transform: translateY(-2px);
}

.project-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #f3f4f6;
}

.project-subtitle {
    font-size: 0.85rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.project-description {
    color: #9ca3af;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.tag {
    background-color: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.play-button {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.play-button:hover {
    background-color: #2563eb;
}

.footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid #333;
    margin-top: 3rem;
    color: #6b7280;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    header {
        padding: 2rem 1rem 1.5rem;
    }

    header h1 {
        font-size: 2rem;
    }

    .container {
        padding: 1.5rem 1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .project-card {
        padding: 1.25rem;
    }
}