/* =============================================
   НОВАЯ БИБЛИОТЕКА - КРАСНАЯ ТЕМА
   ============================================= */

/* === Variables === */
:root {
    --primary: #dc2626;
    --primary-dark: #991b1b;
    --primary-light: #fca5a5;
    --bg: #f9fafb;
    --surface: #ffffff;
    --text: #111827;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

/* === Reset === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* === Header === */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: var(--shadow-lg);
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header h1 i {
    font-size: 1.8rem;
}

.header-subtitle {
    font-size: 1.1rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.5rem;
    font-style: italic;
    padding-left: 3.8rem;
}

.header-subtitle i {
    font-size: 1rem;
    color: #fca5a5;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

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

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.stat-item i {
    font-size: 1.2rem;
}

.stat-item strong {
    font-size: 1.5rem;
    font-weight: 700;
}

/* === Filters === */
.filters-section {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.filters {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Search Input */
.filter-item.filter-search {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
    position: relative;
}

.filter-item input[type="text"] {
    width: 100%;
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    background: white;
    transition: var(--transition);
}

.filter-item input[type="text"]:hover {
    border-color: var(--primary-light);
}

.filter-item input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.filter-item input[type="text"]::placeholder {
    color: var(--text-light);
}

.clear-search-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border-radius: 50%;
}

.clear-search-btn:hover {
    color: var(--primary);
    background: var(--bg);
}

.filter-item label {
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.filter-item label i {
    color: var(--primary);
}

.filter-item select {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    background: white;
    cursor: pointer;
    transition: var(--transition);
}

.filter-item select:hover {
    border-color: var(--primary);
}

.filter-item select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* View Toggle */
.view-toggle {
    display: flex;
    gap: 0.5rem;
}

.view-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border);
    background: white;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.view-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.view-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* === Books Section === */
.books-section {
    padding: 2rem 0 4rem;
    min-height: 60vh;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    animation: fadeIn 0.5s;
}

.books-grid.list-view {
    grid-template-columns: 1fr;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* === Book Card === */
.book-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.books-grid.list-view .book-card {
    flex-direction: row;
}

/* Like Button */
.like-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    border: none;
    box-shadow: var(--shadow);
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

/* Shelf Number Badge */
.book-shelf-number {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    z-index: 10;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.like-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.like-btn i {
    font-size: 1.2rem;
    color: #9ca3af;
    transition: var(--transition);
}

.like-btn.liked i {
    color: var(--primary);
    animation: heartBeat 0.3s;
}

/* Autograph Badge */
.book-autograph-badge {
    position: absolute;
    top: 3.5rem;
    left: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.4rem 0.7rem;
    border-radius: 8px;
    font-size: 1rem;
    z-index: 10;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 700;
}

.autograph-item {
    color: var(--primary);
    font-weight: 600;
}

.autograph-item i {
    color: var(--primary);
}

@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

/* Book Cover */
.book-cover {
    width: 100%;
    height: 400px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    flex-shrink: 0;
}

.books-grid.list-view .book-cover {
    width: 200px;
    height: 300px;
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.book-card:hover .book-cover img {
    transform: scale(1.05);
}

/* Book Info */
.book-info {
    padding: 1.5rem;
    flex: 1;
}

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

.book-subtitle {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.book-author {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.book-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.book-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.book-meta i {
    color: var(--primary);
}

/* Genre Tags */
.book-genres {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.genre-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(220, 38, 38, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-light);
}

.empty-state i {
    font-size: 4rem;
    color: var(--border);
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--text);
    margin-bottom: 0.5rem;
}

/* === Modal === */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.active {
    display: block;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--surface);
    border-radius: var(--radius);
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow);
    z-index: 10;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--primary);
    color: white;
    transform: rotate(90deg);
}

.modal-close i {
    font-size: 1.2rem;
}

.modal-book {
    display: flex;
    gap: 2rem;
    padding: 2rem;
}

.modal-cover {
    width: 300px;
    flex-shrink: 0;
    position: relative;
}

.modal-cover img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

/* Modal Shelf Number */
.modal-shelf-number {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    z-index: 10;
    box-shadow: var(--shadow-lg);
}

.modal-info {
    flex: 1;
}

.modal-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.modal-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.modal-like-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary);
    background: white;
    color: var(--primary);
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.modal-like-btn:hover {
    background: var(--primary);
    color: white;
}

.modal-like-btn.liked {
    background: var(--primary);
    color: white;
}

.modal-meta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.modal-meta-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 1rem;
}

.modal-meta-item i {
    color: var(--primary);
    width: 20px;
    margin-top: 0.25rem;
}

.modal-description {
    margin-bottom: 1.5rem;
}

.modal-description h4 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-description h4 i {
    color: var(--primary);
}

.modal-description p {
    color: var(--text-light);
    line-height: 1.8;
}

.modal-genres {
    margin-top: 1.5rem;
}

.modal-genres h4 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-genres h4 i {
    color: var(--primary);
}

/* === Responsive === */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .header-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1rem;
        padding-left: 2.5rem;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-item {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-item select,
    .view-toggle {
        width: 100%;
    }

    .books-grid {
        grid-template-columns: 1fr;
    }

    .modal-book {
        flex-direction: column;
    }

    .modal-cover {
        width: 100%;
    }

    .modal-title {
        font-size: 1.5rem;
    }
}