h2 {
  scroll-margin-top: 100px;
}

.header {
  width: 100%;
    color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    background-color: #333;
    top: 0;
    left: 0;
    z-index: 100;
}

.nav {
    display: flex;
    align-items: center; 
    justify-content: center; 
    gap: 1rem; 
}

.nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 1rem 0;
    gap: 1rem;
}

.nav li {
    margin: 0 1rem;
}

.nav a {
    font-weight: 600;
}   

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f9f9f9;
    color: #333;
    line-height: 1.6;
  padding-top: 30px; 
}

.nazo-list {
    display: grid;
    gap: 20px;
    margin-top: 2rem;
}

.nazo-card {
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    padding: 20px;
    background: #fff;
    transition: 0.3s ease;
}

.nazo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.nazo-card h3 {
    margin-bottom: 8px;
    font-size: 1rem;
    color: #666;
}

.nazo-card p {
    margin-bottom: 10px;
    font-weight: 600;
}

.tag {
    display: inline-block;
    font-size: 0.8rem;
    background: #333;
    color: #fff;
    padding: 4px 8px;
    border-radius: 5px;
}