styles.css

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 1rem 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    margin: 0;
    font-size: 1.5rem;
}

main {
    padding: 2rem 0;
}

#intro {
    text-align: center;
    margin-bottom: 2rem;
}

#filters {
    margin-bottom: 2rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: #fff;
    border-radius: 4px;
    padding: 1.5rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.tool-card h3 {
    margin-top: 0;
}

.tag {
    display: inline-block;
    background: #3498db;
    color: #fff;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

.visit-btn {
    display: inline-block;
    background: #2c3e50;
    color: #fff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 3px;
    transition: background 0.3s ease;
}

.visit-btn:hover {
    background: #34495e;
}

footer {
    background: #2c3e50;
    color: #ecf0f1;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
}

footer a {
    color: #3498db;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}