:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --rutgers-scarlet: #cc0033;
    --accent-blue: #0284c7;
    --code-bg: #0f172a;
    --code-text: #f8fafc;
    --border-color: #e2e8f0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Global Navbar layout */
.navbar {
    background-color: #0f172a;
    padding: 15px 20px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-logo {
    color: #ffffff;
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
    border-left: 3px solid var(--rutgers-scarlet);
    padding-left: 10px;
}
.nav-links a {
    color: #94a3b8;
    text-decoration: none;
    margin-left: 20px;
    font-size: 0.95rem;
    transition: color 0.2s;
}
.nav-links a:hover {
    color: #ffffff;
}

/* Content Area layout */
.main-content {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
    min-height: 80vh;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 25px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

h1, h2, h3 {
    color: var(--text-main);
    margin-top: 0;
}

/* Tutorial Dashboard Grid layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}
.grid-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 20px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
}
.grid-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    border-color: var(--accent-blue);
}
.grid-card h3 {
    color: var(--accent-blue);
    margin-bottom: 8px;
}

/* Technical Code structures */
.code-container {
    position: relative;
    margin: 15px 0;
}
pre {
    background-color: var(--code-bg);
    color: var(--code-text);
    padding: 16px;
    border-radius: 6px;
    overflow-x: auto;
    font-family: monospace;
    font-size: 0.9rem;
}
.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--code-text);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
}

/* Context Callout styling */
.callout {
    border-left: 4px solid var(--accent-blue);
    background-color: #f0f9ff;
    padding: 15px;
    border-radius: 0 6px 6px 0;
}
.warning {
    border-left: 4px solid #eab308;
    background-color: #fefce8;
    padding: 15px;
    border-radius: 0 6px 6px 0;
}

footer {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
}