* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 20px;
    background: #f5f5f5;
    font-family: "Yu Gothic", "Hiragino Sans", sans-serif;
    color: #333;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

header {
    margin-bottom: 30px;
}

header h1 {
    margin: 0 0 10px;
    font-size: 2rem;
}

header p {
    margin: 5px 0;
    color: #666;
}

.search-area {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
}

#searchInput {
    flex: 1;
    padding: 12px;
    font-size: 16px;
}

#searchButton {
    width: 120px;
    font-size: 16px;
    cursor: pointer;
}

#messageArea {
    margin-bottom: 20px;
    font-weight: bold;
}

.result-card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 18px;
    margin-bottom: 15px;
}

.result-card h2 {
    margin: 0 0 12px;
    font-size: 1.4rem;
}

.result-card p {
    margin: 8px 0;
}

.result-card a {
    color: #0066cc;
    text-decoration: none;
    word-break: break-all;
}

.result-card a:hover {
    text-decoration: underline;
}

#paginationArea {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin: 30px 0;
    flex-wrap: wrap;
}

#paginationArea button {
    min-width: 40px;
    padding: 8px 12px;
    cursor: pointer;
}

#paginationArea button.active {
    background: #333;
    color: white;
}

@media (max-width: 600px) {

    body {
        padding: 15px;
    }

    .search-area {
        flex-direction: column;
    }

    #searchButton {
        width: 100%;
    }

    .result-card {
        padding: 15px;
    }

    .search-option {
        margin-bottom: 20px;
    }

    .search-option label {
        margin-right: 20px;
        cursor: pointer;
    }

}