:root{--primary-color: #0b5934;--primary-light: #e0efe6;--secondary-color: #6a5acd;--light-bg: #f5f4f1;--card-bg: #ffffff;--text-dark: #1d1d1f;--text-medium: #5d5d5f;--text-light: #8b8b8f;--border-color: #e3e1dd;--shadow: 0 6px 20px rgba(0, 0, 0, .08);--radius-lg: 20px;--radius-md: 12px;--radius-sm: 8px}.app-container{display:flex;min-height:100vh;padding-top:80px}.main-content{flex:1;padding:30px;overflow-y:auto;margin-left:0}.right-sidebar{width:300px;padding:30px 20px;background-color:var(--card-bg);border-radius:var(--radius-lg);margin:30px 30px 30px 0;height:fit-content;position:sticky;top:110px}@media (max-width: 1200px){.right-sidebar{width:250px}}@media (max-width: 992px){.app-container{flex-direction:column}.main-content{padding:20px}.right-sidebar{width:100%;margin:0;border-radius:0;position:static;order:3}}.app{min-height:100vh}.app-main-container{display:flex;padding-top:20px;min-height:calc(100vh - 80px)}.main-content{flex:1;padding:30px;overflow-y:auto;background-color:#f8f9fa}.right-sidebar{width:320px;min-width:320px;padding:25px;background-color:var(--card-bg);border-left:1px solid var(--border-color);box-shadow:-2px 0 10px #0000000d;height:calc(100vh - 80px);position:sticky;top:80px;overflow-y:auto}.login-page{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#0b5934,#6a5acd)}.login-container{background-color:#fff;padding:40px;border-radius:var(--radius-lg);box-shadow:var(--shadow);text-align:center;max-width:400px;width:100%}.login-container h1{margin-bottom:10px;color:var(--text-dark)}@media (max-width: 1200px){.right-sidebar{width:280px;min-width:280px}}@media (max-width: 992px){.app-main-container{flex-direction:column}.main-content{padding:20}.right-sidebar{width:100%;min-width:100%;height:auto;position:static;border-left:none;border-top:1px solid var(--border-color);order:2;padding:20px}}@media (max-width: 768px){.main-content{padding:15px}.app-main-container{padding-top:70px}.right-sidebar{padding:15px}}.main-content{padding-top:80px;min-height:100vh}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background-color:var(--light-bg)}.login-container{background-color:var(--card-bg);border-radius:var(--radius-lg);padding:50px;box-shadow:var(--shadow);text-align:center;max-width:400px;width:90%}.login-container .logo-container{justify-content:center;margin-bottom:30px}.login-container h1{font-size:28px;margin-bottom:10px}.login-container p{color:var(--text-light);margin-bottom:30px}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{background-color:var(--light-bg);color:var(--text-dark);line-height:1.5;min-height:100vh}.app-container{display:grid;grid-template-columns:260px 1fr 300px;min-height:100vh;gap:20px;padding:20px;max-width:1600px;margin:0 auto}.main-content{display:flex;flex-direction:column;gap:20px}.right-sidebar{display:flex;flex-direction:column;gap:20px;height:calc(100vh - 40px);position:sticky;top:20px}@media (max-width: 1200px){.app-container{grid-template-columns:220px 1fr}.right-sidebar{display:none}}@media (max-width: 768px){.app-container{grid-template-columns:1fr;padding:15px}.sidebar{display:none}.search-container{flex-direction:column}.search-box{min-width:100%}.books-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}.sidebar{background-color:var(--card-bg);border-radius:0 0 var(--radius-lg) var(--radius-lg);padding:15px 25px;display:flex;align-items:center;box-shadow:var(--shadow);position:fixed;top:0;left:0;right:0;z-index:1000;width:100%;height:80px;margin-bottom:0}.logo-container{display:flex;align-items:center;margin-right:40px}.logo{width:42px;height:42px;background:linear-gradient(135deg,#0b5934,#6a5acd);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;margin-right:12px}.logo-text h2{font-size:18px;font-weight:700;margin-bottom:2px}.logo-text p{font-size:12px;color:var(--text-light)}.nav-sections-container{display:flex;flex:1;justify-content:space-between;align-items:center}.nav-section{display:flex;align-items:center;margin-bottom:0}.nav-label{display:none}.nav-items-container{display:flex;gap:10px}.nav-item{display:flex;align-items:center;padding:10px 20px;border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;border:none;background:transparent;text-align:left;color:var(--text-medium);font-size:15px;white-space:nowrap}.nav-item i{margin-right:10px;width:20px;text-align:center}.nav-item:hover{background-color:#0b59340d}.nav-item.active{background-color:var(--primary-color);color:#fff}.sidebar-footer{margin-top:0;margin-left:auto}.upgrade-card{background:linear-gradient(135deg,#f4e2ff,#e0efe6);border-radius:var(--radius-md);padding:12px 15px;display:flex;align-items:center;min-width:180px}.upgrade-icon{width:35px;height:35px;background-color:#ffffffb3;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:10px;font-size:16px}.upgrade-text h4{font-size:14px;font-weight:600;margin-bottom:3px}.upgrade-text p{font-size:12px;color:var(--text-light)}@media (max-width: 1200px){.sidebar{padding:12px 20px}.nav-item{padding:10px 15px;font-size:14px}.nav-item i{margin-right:8px}}@media (max-width: 992px){.nav-items-container{gap:5px}.nav-item{padding:10px 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button{background-color:var(--primary-color);color:#fff;border:none;padding:0 25px;border-radius:0 var(--radius-md) var(--radius-md) 0;cursor:pointer;font-weight:600;transition:background-color .2s}.search-box button:hover{background-color:#094629}.content-panel{background-color:var(--card-bg);border-radius:var(--radius-lg);padding:25px;box-shadow:var(--shadow)}.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.panel-header h2{font-size:20px;font-weight:600}.view-all-btn{background:transparent;border:1px solid var(--border-color);padding:8px 16px;border-radius:var(--radius-md);color:var(--text-medium);cursor:pointer;font-size:14px;transition:all .2s}.view-all-btn:hover{background-color:#0b59340d}.books-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}.book-card{background-color:#fff;border-radius:var(--radius-md);overflow:hidden;box-shadow:0 4px 12px #0000000d;transition:transform .3s,box-shadow .3s;cursor:pointer}.book-card:hover{transform:translateY(-5px);box-shadow:0 8px 20px #0000001a}.book-cover{height:200px;background:linear-gradient(135deg,#f6d365,#fda085);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;text-align:center;padding:15px;position:relative}.library-badge{position:absolute;top:10px;right:10px;background:var(--primary-color);color:#fff;padding:2px 8px;border-radius:10px;font-size:10px}.book-info{padding:15px}.book-title{font-weight:600;font-size:16px;margin-bottom:5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.book-author{color:var(--text-light);font-size:13px;margin-bottom:10px}.book-footer{display:flex;justify-content:space-between;align-items:center}.book-category{background-color:var(--primary-light);color:var(--primary-color);padding:4px 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transparent;box-shadow:0 2px 8px #0000001a}.category-stat-card:hover{transform:translateY(-3px);box-shadow:0 4px 12px #00000026}.category-stat-card.active{border-color:var(--primary-color);background-color:#0b59340d}.stat-count{font-size:32px;font-weight:700;color:var(--primary-color);margin-bottom:5px}.stat-name{font-size:16px;font-weight:600;margin-bottom:3px}.stat-subtitle{font-size:12px;color:var(--text-light)}.my-library{display:flex;flex-direction:column;gap:20px}.library-header{background-color:var(--card-bg);border-radius:var(--radius-lg);padding:25px;box-shadow:var(--shadow)}.library-header h1{font-size:28px;font-weight:700;margin-bottom:5px}.library-header p{color:var(--text-light)}.library-stats-summary{display:flex;gap:20px}.library-stats-summary .stat-item{padding:15px 25px;background-color:#f8f8f8;border-radius:var(--radius-md);text-align:center;min-width:120px}.library-stats-summary 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15px;font-size:30px;color:#fff}.format-icon.pdf{background:linear-gradient(135deg,#ff6b6b,#ff8e8e)}.format-icon.epub{background:linear-gradient(135deg,#4ecdc4,#44a08d)}.format-icon.mobi{background:linear-gradient(135deg,#a8edea,#fed6e3)}.format-card h3{font-size:20px;margin-bottom:8px}.format-card p{color:var(--text-light);font-size:14px;margin-bottom:10px}.format-count{font-weight:600;color:var(--primary-color)}.download-links-list{display:flex;flex-direction:column;gap:15px}.download-item{background-color:#fff;border-radius:var(--radius-md);padding:20px;box-shadow:0 2px 8px #0000001a}.download-item-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.download-item-header h3{font-size:18px;font-weight:600}.download-author{color:var(--text-light);margin-bottom:15px;font-size:14px}.download-links{display:flex;flex-wrap:wrap;gap:10px}.download-link-btn{background-color:var(--primary-color);color:#fff;padding:8px 15px;border-radius:var(--radius-sm);font-size:13px;text-decoration:none;display:flex;align-items:center;gap:8px;transition:background-color .2s}.download-link-btn:hover{background-color:#094629}.favorite-page{display:flex;flex-direction:column;gap:20px}.favorite-header{background-color:var(--card-bg);border-radius:var(--radius-lg);padding:25px;box-shadow:var(--shadow)}.favorite-header h1{font-size:28px;font-weight:700;margin-bottom:5px}.favorite-header p{color:var(--text-light)}.favorite-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}.favorite-stat-card{background-color:#fff;border-radius:var(--radius-md);padding:25px;display:flex;align-items:center;gap:20px;box-shadow:0 2px 8px #0000001a}.favorite-stat-card .stat-icon{width:60px;height:60px;background:linear-gradient(135deg,#ff6b6b,#ff8e8e);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px}.favorite-tags{display:flex;gap:10px}.tag{padding:6px 12px;background-color:#f8f8f8;border-radius:20px;font-size:13px;color:var(--text-medium);cursor:pointer;transition:all .2s}.tag:hover{background-color:#f0f0f0}.tag.active{background-color:var(--primary-color);color:#fff}.empty-favorites{grid-column:1/-1;text-align:center;padding:60px 40px;color:var(--text-light)}.empty-favorites h3{font-size:24px;margin-bottom:10px;color:var(--text-dark)}.empty-favorites p{font-size:16px;margin-bottom:10px}.favorite-book-card{position:relative}.favorite-badge{position:absolute;top:10px;right:10px;background-color:#ff6b6b;color:#fff;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px}.unfavorite-btn{position:absolute;bottom:-35px;left:50%;transform:translate(-50%);background-color:#f44;color:#fff;border:none;padding:8px 15px;border-radius:var(--radius-sm);font-size:12px;font-weight:600;cursor:pointer;opacity:0;transition:opacity .3s,background-color .2s;z-index:10;white-space:nowrap}.favorite-book-card:hover .unfavorite-btn{opacity:1}.unfavorite-btn:hover{background-color:#c00}.settings-page,.help-page,.logout-page{display:flex;flex-direction:column;gap:20px}.settings-header,.help-header,.logout-header{background-color:var(--card-bg);border-radius:var(--radius-lg);padding:25px;box-shadow:var(--shadow)}.settings-header h1,.help-header h1,.logout-header h1{font-size:28px;font-weight:700;margin-bottom:5px}.settings-header p,.help-header p,.logout-header p{color:var(--text-light)}.settings-list{display:flex;flex-direction:column;gap:20px;margin-bottom:30px}.setting-item{display:flex;justify-content:space-between;align-items:center;padding:20px;background-color:#fff;border-radius:var(--radius-md);box-shadow:0 2px 8px #0000001a}.setting-info h3{font-size:16px;font-weight:600;margin-bottom:5px}.setting-info p{font-size:14px;color:var(--text-light)}.toggle-switch{position:relative;display:inline-block;width:60px;height:34px}.toggle-switch 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25px;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:background-color .2s}.faq-list{display:flex;flex-direction:column;gap:10px}.faq-item{background-color:#fff;border-radius:var(--radius-md);overflow:hidden;box-shadow:0 2px 8px #0000001a}.faq-question{padding:20px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;background-color:#f8f8f8}.faq-question h3{font-size:16px;font-weight:600;margin:0}.faq-question i{transition:transform .3s}.faq-item.active .faq-question i{transform:rotate(180deg)}.faq-answer{padding:20px;border-top:1px solid var(--border-color);display:none}.faq-item.active .faq-answer{display:block}.contact-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}.contact-card{background-color:#fff;border-radius:var(--radius-md);padding:30px;text-align:center;box-shadow:0 2px 8px 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h3{font-size:18px;margin-bottom:15px;text-align:center}.logout-info ul{list-style:none;padding:0}.logout-info li{display:flex;align-items:center;gap:10px;margin-bottom:10px;color:var(--text-medium)}.logout-info li 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0;overflow:hidden}.progress-bar{height:100%;background-color:var(--primary-color);width:30%;border-radius:4px}.start-reading-btn{background-color:var(--primary-color);color:#fff;border:none;padding:12px;border-radius:var(--radius-md);width:100%;font-weight:600;cursor:pointer;transition:background-color .2s}.start-reading-btn:hover{background-color:#094629}.book-modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}.book-modal.active{opacity:1;visibility:visible}.modal-content{background-color:#fff;border-radius:var(--radius-lg);width:90%;max-width:700px;max-height:90vh;overflow-y:auto;position:relative;padding:30px}.close-modal{position:absolute;top:20px;right:20px;background:transparent;border:none;font-size:24px;cursor:pointer;color:var(--text-light)}.modal-body{display:flex;gap:30px;flex-wrap:wrap}.modal-cover{flex:0 0 200px;height:280px;background:linear-gradient(135deg,#f6d365,#fda085);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:22px;text-align:center;padding:20px;position:relative}.library-badge-modal{position:absolute;top:15px;right:15px;background:var(--primary-color);color:#fff;padding:4px 12px;border-radius:15px;font-size:12px;font-weight:600}.modal-info{flex:1;min-width:250px}.modal-info h3{font-size:24px;margin-bottom:10px}.modal-author{font-size:16px;color:var(--text-light);margin-bottom:20px}.modal-description{margin-bottom:20px;line-height:1.6}.modal-meta{display:flex;flex-wrap:wrap;gap:15px;margin-bottom:25px}.modal-category{background-color:var(--primary-light);color:var(--primary-color);padding:6px 15px;border-radius:20px;font-weight:600}.modal-rating{color:#ff9800;font-weight:600}.modal-actions{display:flex;gap:15px;flex-wrap:wrap}.modal-btn{padding:12px 25px;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:all .2s;border:none}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:#094629}.btn-secondary{background-color:#f0f0f0;color:var(--text-dark)}.btn-secondary:hover{background-color:#e0e0e0}.notification{position:fixed;bottom:20px;right:20px;background-color:var(--primary-color);color:#fff;padding:15px 20px;border-radius:var(--radius-md);box-shadow:var(--shadow);z-index:1001;transform:translateY(100px);opacity:0;transition:transform .3s,opacity .3s}.notification.active{transform:translateY(0);opacity:1}