/* --- Cozy & Vintage (Extra Dark) CSS - SON HALİ --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700&family=Roboto:wght@400;500&display=swap');

:root {
    --bg-color: #141210;
    --container-bg: #221e1a;
    --text-color: #dcd3b8;
    --text-muted: #a09681;
    --accent-color: #e8a87c;
    --danger-color: #c97571;
    /* Silme butonu varsayılan rengi */
    --danger-hover-color: #ff9e9a;
    /* Silme butonu hover rengi */
    --border-color: #332d27;
    --progress-bar-bg: #4a4137;
    --shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px 20px 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.book-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    width: 100%;
    max-width: 80%;
}

.book-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 320px;
    /* Her bir kitabın genişliğini buradan ayarlıyoruz */
}

.book-slot {
    background-color: var(--container-bg);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s;
}

.book-wrapper:hover .book-slot {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.45);
}

.add-button-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
}

#add-book-btn {
    background-color: var(--accent-color);
    color: var(--bg-color);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    opacity: 0.05;
    transition: all 0s ease-in-out;
}

#add-book-btn:hover {
    opacity: 0.1;
}

/* --- YENİ SİLME BUTONU STİLİ --- */
.delete-btn {
    position: absolute;
    top: 0px;
    right: 5px;
    background-color: transparent;
    /* Arka plan yok */
    color: var(--danger-color);
    border: none;
    border-radius: 0;
    padding: 5px;
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    z-index: 10;
    opacity: 0;
    transform: scale(1);
    transition: color 0.2s ease, transform 0.2s ease;
}

.book-wrapper:hover .delete-btn {
    opacity: 0.2;
}

.delete-btn:hover {
    color: var(--danger-hover-color);
    /* Rengi daha parlak yap */
    transform: scale(1.5);
    /* Biraz büyüt */
}

.drop-zone {
    position: relative;
    width: 100%;
    padding-top: 150%;
    cursor: pointer;
    overflow: hidden;
    border-radius: 6px 6px 0 0;
}

.book-cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-tracker {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

.page-count {
    font-size: 1.25rem;
    font-weight: 500;
    font-family: 'Playfair Display', serif;
    min-width: 40px;
    text-align: center;
}

.btn {
    opacity: 0;
    transition: all 0.2s ease;
    color: var(--text-muted);
    border: 1px solid transparent;
    border-radius: 4px;
    width: 34px;
    height: 34px;
    font-size: 1.5rem;
    font-weight: 400;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
}

.book-wrapper:hover .btn {
    opacity: 1;
}

.btn:hover {
    color: var(--accent-color);
}

.progress-container {
    padding-top: 5px;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.book-wrapper:hover .progress-container {
    opacity: 1;
    pointer-events: auto;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--progress-bar-bg);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background-color: var(--accent-color);
    border-radius: 4px;
    transition: width 0.3s ease-out;
}

.total-pages-container {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 5px;
    text-align: center;
}

.total-pages-input {
    width: 50px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    text-align: center;
    font-family: 'Roboto', sans-serif;
}

.total-pages-input:focus {
    outline: none;
    border-bottom-color: var(--accent-color);
}

@media (max-width: 640px) {
    .book-container {
        gap: 20px;
    }
}