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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

nav {
    background: #2d3748;
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

nav a:hover {
    color: #667eea;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.hero {
    text-align: center;
    padding: 3rem 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tool-card {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.tool-card h3 {
    color: #667eea;
    margin-bottom: 1rem;
}

.tool-card .rating {
    color: #f6ad55;
    margin: 0.5rem 0;
}

.cta-button {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 1rem;
    transition: background 0.3s;
}

.cta-button:hover {
    background: #764ba2;
}

footer {
    background: #2d3748;
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
}