:root {
    --bg-color: #d4cfc3;
    --text-color: #2c2c2c;
    --accent-color: #8c7355;
    --card-bg: #ffffff;
    --border-color: #e0dcd3;
}

body {
    margin: 0;
    font-family: 'Noto Serif JP', serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

.view {
    display: none;
}

.view.active {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Search */
#search-view header {
    text-align: center;
    padding: 2.5rem 1rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

h1 {
    margin-top: 0;
    color: var(--accent-color);
    letter-spacing: 2px;
}

.search-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    max-width: 700px;
    margin: 1.5rem auto 0;
}

#search-input {
    flex: 1;
    min-width: 250px;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

#search-input:focus {
    border-color: var(--accent-color);
}


#search-button {
    padding: 0.8rem 2rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    font-weight: bold;
    transition: background 0.2s;
}

#search-button:hover {
    background: #6a553c;
}

/* Book Grid */
.book-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.book-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    display: flex;
    flex-direction: column;
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.book-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    line-height: 1.4;
}

.book-author {
    font-size: 1rem;
    color: #555;
}

.pagination {
    text-align: center;
    padding: 1rem 0 3rem;
}

.pagination button {
    padding: 0.5rem 1.5rem;
    margin: 0 0.5rem;
    cursor: pointer;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination button:not(:disabled):hover {
    background: #f0f0f0;
}