:root {
    --primary: #2563eb;
    --secondary: #1e293b;
    --accent: #f59e0b;
    --bg: #f8fafc;
    --text: #334155;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    margin: 0;
    padding: 0;
}

header {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-top: 1rem;
}

.container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

section {
    background: var(--white);
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

h2 {
    color: var(--primary);
    border-bottom: 2px solid var(--bg);
    padding-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.card {
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #fff;
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

.card h3 {
    margin-top: 0;
    color: var(--secondary);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
}

th,
td {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid #e2e8f0;
}

th {
    background-color: #f1f5f9;
    color: var(--secondary);
}

.highlight {
    background-color: #fef3c7;
    padding: 1.5rem;
    border-left: 5px solid var(--accent);
    border-radius: 4px;
    font-style: italic;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    background: var(--primary);
    color: white;
}

footer {
    text-align: center;
    padding: 2rem;
    color: #64748b;
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    header h1 {
        font-size: 1.8rem;
    }

    section {
        padding: 1.5rem;
    }
}