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

body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    background-color: #f4f5f7;
    padding: 20px;
    color: #333;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header Styling */
.header {
    grid-column: 1 / -1;
    background-color: #1e293b;
    color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.header h1 {
    font-size: 1.5rem;
    margin-right: auto;
}

.header p {
    background-color: #334155;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.header p:hover {
    background-color: #2563eb;
}

/* Content Blocks */
.content1, .content2, .content3,
.content4, .content5, .content6, .content7 {
    background-color: #ffffff;
    padding: 25px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    min-height: 120px;
}

/* Spanning content for a balanced 3-column layout */
.content1 {
    grid-column: span 2;
}

.content7 {
    grid-column: span 3;
}

/* Footer Styling */
.footer {
    grid-column: 1 / -1;
    background-color: #1e293b;
    color: #ffffff;
    text-align: center;
    padding: 15px;
    border-radius: 8px;
}

/* Responsive Layout for Mobile */
@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: 1fr;
    }

    .content1, .content7 {
        grid-column: span 1;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
    }
}