/* reset */
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
li{
    list-style: none;
}
a{
    text-decoration: none;
    color: #000;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background: #fff;
    color: #222;
}
/* header 영역 */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background-color: #ffffff;
    border-bottom: 1px solid #ddd;
}
/* header 종료 */

/* main 영역 */
main {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.book-info {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.book-cover {
    width: 220px;
}

.book-cover img {
    width: 100%;
    border-radius: 8px;
}

.book-meta h2 {
    margin: 0;
}

.tabs {
    display: flex;
    gap: 2rem;
    margin: 2rem 0 1rem;
    border-bottom: 1px solid #ccc;
    flex-wrap: wrap;
}

.tabs button {
    background: none;
    border: none;
    padding: 1rem;
    font-size: 1rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
}

.tabs button.active {
    border-color: #222;
    font-weight: bold;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.episode {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.episode img {
    width: 60px;
    height: 80px;
    object-fit: cover;
}

.episode-info {
    font-size: 0.9rem;
}

.review {
    border-bottom: 1px solid #eee;
    padding: 1rem 0;
}

#todo-list {
    padding: 0;
}

.todo-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 1rem 0;
}

.todo-form label {
    font-weight: bold;
}

.todo-form input,
.todo-form textarea {
    padding: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
}

.todo-form textarea {
    height: 80px;
    resize: none;
}

.todo-form button {
    width: fit-content;
    padding: 0.5rem 1rem;
    background-color: black;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}
/* main 영역 종료 */

/* 반응형 영역 */
@media (max-width: 768px) {
    .book-info {
        flex-direction: column;
        align-items: center;
    }
}