:root {
    --primary-color: #232f3e;
    --secondary-color: #ff9900;
    --text-color: #333;
    --light-bg: #f5f5f5;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.6;
}

.header {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.highlight {
    color: var(--secondary-color);
    font-weight: bold;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.topic-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.btn {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #e88a00;
}
.back-link {
    display: inline-block;
    margin-bottom: 2rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.back-link:hover {
    color: var(--secondary-color);
}

.content-card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.section {
    margin-bottom: 2rem;
}

.section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section ul {
    list-style-position: inside;
    padding-left: 1rem;
}

.section li {
    margin-bottom: 0.5rem;
}

/* Update the topic-card to work as a link */
.topic-card {
    text-decoration: none;
    color: var(--text-color);
    display: block;
    transition: transform 0.3s ease;
}

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