:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e4a546;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f5f5;
}

.holy-grail {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

.header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.header h1 {
    font-size: 1.8rem;
    margin: 0;
}

.github-btn,
.home-btn {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    background-color: var(--secondary-color);
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.github-btn:hover,
.home-btn:hover {
    background-color: var(--accent-color);
}

.holy-grail-body {
    display: flex;
    flex: 1;
}

.holy-grail-content {
    flex: 1;
    padding: 2rem;
    background-color: white;
    order: 2;
}

.holy-grail-side {
    flex: 0 0 250px;
    padding: 1.5rem;
    background-color: var(--light-color);
}

.left-sidebar {
    order: 1;
}

.right-sidebar {
    order: 3;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.project-card {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: 2px solid var(--light-color);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--secondary-color);
}

.project-icon {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.custom-icon {
    width: 1em;
    height: 1em;
    vertical-align: middle;
    margin-right: 0.5rem;
}

.project-icon .custom-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--secondary-color);
    fill: currentColor;
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.project-preview {
    width: 100%;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.project-preview img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 8px;
    box-shadow: var(--shadow);
    width: auto;
    height: auto;
    object-fit: contain;
}

.project-description {
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

@media (max-width: 768px) {
    .holy-grail-body {
        flex-direction: column;
    }

    .holy-grail-side {
        flex: 0 0 auto;
    }

    .left-sidebar,
    .right-sidebar {
        order: 0;
    }

    .project-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}