*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color:#2c5282;--primary-light:#4299e1;--secondary-color:#718096;--background-color:#f7fafc;--card-background:#fff;--text-color:#2d3748;--text-light:#718096;--border-color:#e2e8f0;--success-color:#48bb78;--sidebar-width:280px}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background-color:var(--background-color);color:var(--text-color);line-height:1.6}.app-container{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background-color:var(--primary-color);color:white;position:fixed;height:100vh;overflow-y:auto}.sidebar-header{padding:1.5rem;border-bottom:1px solid rgba(255,255,255,0.1)}.sidebar-header h1{font-size:1.25rem;font-weight:600;margin-bottom:.25rem}.sidebar-header .subtitle{font-size:.875rem;opacity:.8}.chapter-list{padding:1rem 0}.chapter-list .loading{padding:1rem 1.5rem;opacity:.7}.chapter-item{padding:.75rem 1.5rem;cursor:pointer;transition:background-color .2s;border-left:3px solid transparent}.chapter-item:hover{background-color:rgba(255,255,255,0.1)}.chapter-item.active{background-color:rgba(0,0,0,0.25);border-left-color:white;font-weight:600}.chapter-item .chapter-number{font-weight:600;display:block}.chapter-item .chapter-info{font-size:.75rem;opacity:.7}.part-container{border-top:1px solid rgba(255,255,255,0.1)}.part-container:first-child{border-top:none}.part-header{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;font-weight:700;font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;color:rgba(255,255,255,0.8);cursor:pointer;transition:background-color .2s}.part-header:hover{background-color:rgba(255,255,255,0.1)}.part-toggle{font-size:.7rem;width:1rem;text-align:center;transition:transform .2s}.part-title{flex:1}.part-count{font-size:.7rem;font-weight:400;opacity:.6;text-transform:none}.chapters-list{max-height:3500px;overflow:hidden;transition:max-height .3s ease-out}.part-container.collapsed .chapters-list{max-height:0}.content{margin-left:var(--sidebar-width);flex:1;padding:2rem;max-width:900px}.welcome-message{background-color:var(--card-background);border-radius:8px;padding:2rem;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.welcome-message h2{margin-bottom:1rem;color:var(--primary-color)}.welcome-message ul{margin-left:1.5rem;margin-top:.5rem}.welcome-message li{margin-bottom:.5rem}.chapter-header{margin-bottom:1.5rem}.chapter-header h2{color:var(--primary-color);font-size:1.5rem;margin-bottom:.75rem}.chapter-toolbar{display:flex;gap:.5rem;margin-bottom:1rem}.btn-toolbar{padding:.4rem .8rem;font-size:.85rem;background-color:var(--card-background);border:1px solid var(--border-color);border-radius:4px;color:var(--text-color);cursor:pointer;transition:all .2s ease}.btn-toolbar:hover{background-color:var(--primary-light);color:white;border-color:var(--primary-light)}.chapter-illustration{margin-bottom:2rem;text-align:center;background-color:var(--card-background);border-radius:8px;padding:1rem;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.chapter-illustration img{max-width:100%;max-height:400px;height:auto;border-radius:4px}.sentence-card{background-color:var(--card-background);border-radius:8px;padding:1.5rem;margin-bottom:1.5rem;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.sentence-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.sentence-number{font-size:.875rem;color:var(--text-light)}.btn-sm{padding:.25rem .5rem;font-size:.75rem}.sentence-images{margin-bottom:1rem;display:none}.sentence-images.visible{display:block}.sentence-image{margin-bottom:.5rem;border:1px solid var(--border-color);border-radius:4px;overflow:hidden;background-color:#fafafa}.sentence-images .sentence-image:last-child{margin-bottom:0}.btn-toggle-image{padding:.3rem .6rem;font-size:.8rem;background-color:#f0f0f0;border:1px solid var(--border-color);border-radius:4px;color:var(--text-light);cursor:pointer;margin-right:.5rem}.btn-toggle-image:hover{background-color:#e0e0e0}.btn-toggle-image.active{background-color:var(--primary-light);color:white;border-color:var(--primary-light)}.sentence-image img{display:block;max-width:100%;height:auto}.greek-text{font-size:1.5rem;font-family:'New Athena Unicode','Noto Serif','Times New Roman',Georgia,serif;line-height:1.8;margin-bottom:1rem;color:var(--text-color)}.controls{display:flex;gap:.75rem;margin-bottom:1rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border:none;border-radius:4px;cursor:pointer;font-size:.875rem;font-weight:500;transition:background-color .2s,transform .1s}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-play{background-color:var(--primary-color);color:white}.btn-play:hover{background-color:var(--primary-light)}.btn-play.playing{background-color:var(--success-color)}.btn-translate{background-color:var(--secondary-color);color:white}.btn-translate:hover{background-color:#5a6878}.btn-translate.active{background-color:var(--success-color)}.translation{display:none;padding:1rem;background-color:#f0fff4;border-radius:4px;border-left:3px solid var(--success-color)}.translation.visible{display:block}.translation-text{font-style:italic;margin-bottom:.5rem}.translation-note{font-size:.875rem;color:var(--text-light)}audio{display:none}.sidebar-section{border-bottom:1px solid rgba(255,255,255,0.1)}.section-header{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;font-weight:700;font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;color:rgba(255,255,255,0.8);cursor:pointer;transition:background-color .2s}.section-header:hover{background-color:rgba(255,255,255,0.1)}.section-toggle{font-size:.7rem;width:1rem;text-align:center}.section-title{flex:1}.section-count{font-size:.7rem;font-weight:400;opacity:.6;text-transform:none}.section-content{max-height:500px;overflow:hidden;transition:max-height .3s ease-out}.section-content.collapsed{max-height:0}.vocab-nav-item{padding:.6rem 1.5rem .6rem 2rem;cursor:pointer;font-size:.85rem;transition:background-color .2s}.vocab-nav-item:hover{background-color:rgba(255,255,255,0.1)}.vocab-nav-item.active{background-color:rgba(255,255,255,0.15);border-left:3px solid white}.vocabulary-list{display:flex;flex-direction:column;gap:1rem}.vocab-card{background-color:var(--card-background);border-radius:8px;padding:1rem;box-shadow:0 1px 3px rgba(0,0,0,0.1);cursor:pointer;transition:box-shadow .2s}.vocab-card:hover{box-shadow:0 2px 6px rgba(0,0,0,0.15)}.vocab-header{display:flex;align-items:baseline;gap:.75rem;margin-bottom:.5rem}.vocab-lemma{font-size:1.25rem;font-family:'New Athena Unicode','Noto Serif',serif;font-weight:600;color:var(--primary-color)}.vocab-pos{font-size:.75rem;color:var(--text-light);background-color:#e2e8f0;padding:.15rem .4rem;border-radius:3px;text-transform:uppercase}.vocab-freq{font-size:.8rem;color:var(--text-light);margin-left:auto}.vocab-definition{font-size:.95rem;color:var(--text-color);font-style:italic}.vocab-paradigm{display:none;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color)}.vocab-paradigm.visible{display:block}.vocab-sort-buttons{display:flex;gap:.5rem}.vocab-sort-buttons .btn-toolbar.active{background-color:var(--primary-color);color:white;border-color:var(--primary-color)}.chapter-vocab-nav{display:flex;flex-wrap:wrap;gap:.5rem;padding:1rem;background-color:var(--card-background);border-radius:8px;margin-bottom:1rem;border:1px solid var(--border-color)}.nav-part-group{display:flex;flex-wrap:wrap;align-items:center;gap:.25rem;margin-right:1rem}.nav-part-header{font-weight:600;color:var(--text-light);font-size:.85rem;margin-right:.5rem}.nav-chapter-btn{padding:.25rem .5rem;font-size:.8rem;border:1px solid var(--border-color);border-radius:4px;background:white;cursor:pointer;transition:all .2s}.nav-chapter-btn:hover{background-color:var(--background-color);border-color:var(--primary-light)}.nav-chapter-btn.active{background-color:var(--primary-color);color:white;border-color:var(--primary-color)}.chapter-vocab-section{margin-bottom:2rem}.chapter-vocab-header{font-size:1.1rem;color:var(--primary-color);padding:.5rem 0;border-bottom:2px solid var(--primary-light);margin-bottom:1rem}.paradigm-table{overflow-x:auto}.paradigm-title{font-size:.85rem;color:var(--text-light);margin-bottom:.5rem}.paradigm-table table{width:100%;border-collapse:collapse;font-size:.9rem}.paradigm-table th,.paradigm-table td{padding:.4rem .6rem;text-align:left;border:1px solid var(--border-color)}.paradigm-table th{background-color:#f7fafc;font-weight:600;font-size:.8rem}.paradigm-table td.attested{font-family:'New Athena Unicode','Noto Serif',serif}.paradigm-table td.attested.has-audio{background-color:#f0fff4}.paradigm-table td.unattested{color:var(--text-color);font-family:'New Athena Unicode','Noto Serif',serif}.ending{font-weight:700}.btn-play-word{background:var(--primary-color);border:none;border-radius:50%;cursor:pointer;font-size:.75rem;color:white;width:1.5rem;height:1.5rem;padding:0;margin-left:.4rem;display:inline-flex;align-items:center;justify-content:center;opacity:.85;vertical-align:middle}.btn-play-word:hover{opacity:1;transform:scale(1.1)}.verb-section{margin-bottom:1rem}.verb-section-title{font-size:.85rem;font-weight:600;color:var(--text-light);margin-bottom:.5rem}.verb-forms{display:flex;flex-wrap:wrap;gap:.5rem}.verb-form{font-family:'New Athena Unicode','Noto Serif',serif;padding:.25rem .5rem;background-color:#f7fafc;border:1px solid var(--border-color);border-radius:3px;font-size:.9rem}.verb-form.has-audio{background-color:#f0fff4;border-color:#c6f6d5}.adj-gender{margin-bottom:1rem}.adj-gender-title{font-size:.85rem;font-weight:600;color:var(--text-light);margin-bottom:.5rem}.adj-forms{display:flex;flex-wrap:wrap;gap:.5rem}.adj-form{font-family:'New Athena Unicode','Noto Serif',serif;padding:.25rem .5rem;background-color:#f7fafc;border:1px solid var(--border-color);border-radius:3px;font-size:.9rem}.adj-form.has-audio{background-color:#f0fff4;border-color:#c6f6d5}.attested-forms{display:flex;flex-wrap:wrap;gap:.5rem}.attested-form{font-family:'New Athena Unicode','Noto Serif',serif;padding:.25rem .5rem;background-color:#f7fafc;border:1px solid var(--border-color);border-radius:3px;font-size:.9rem}.attested-form.has-audio{background-color:#f0fff4;border-color:#c6f6d5}.attested-form small{font-size:.75rem;color:var(--text-light)}.no-paradigm{color:var(--text-light);font-style:italic}.page-panel{width:600px;min-width:300px;max-width:80vw;position:fixed;right:0;top:0;height:100vh;background-color:#f8f9fa;border-left:1px solid var(--border-color);display:none;flex-direction:column;z-index:100}.page-panel.visible{display:flex}.page-panel-resize{position:absolute;left:0;top:0;bottom:0;width:6px;cursor:ew-resize;background:transparent;z-index:101}.page-panel-resize:hover,.page-panel-resize.dragging{background:var(--primary-light)}.page-panel-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;background-color:var(--primary-color);color:white}.page-panel-header h3{font-size:.9rem;font-weight:600;margin:0}.btn-close-panel{background:none;border:none;color:white;font-size:1.5rem;cursor:pointer;opacity:.8;padding:0;line-height:1}.btn-close-panel:hover{opacity:1}.page-panel-content{flex:1;overflow-y:auto;padding:.5rem}.page-image-container{margin-bottom:.5rem;background:white;border-radius:4px;box-shadow:0 1px 3px rgba(0,0,0,0.1);overflow:hidden}.page-image-label,.page-number{font-size:.75rem;color:var(--text-light);padding:.4rem .6rem;background-color:#f0f0f0;border-bottom:1px solid var(--border-color)}.page-image-container img{display:block;width:100%;height:auto}.no-pages{padding:1rem;color:var(--text-light);font-style:italic;text-align:center}.btn-toggle-pages{padding:.4rem .8rem;font-size:.85rem;background-color:var(--card-background);border:1px solid var(--border-color);border-radius:4px;color:var(--text-color);cursor:pointer;transition:all .2s ease}.btn-toggle-pages:hover{background-color:var(--primary-light);color:white;border-color:var(--primary-light)}.btn-toggle-pages.active{background-color:var(--primary-color);color:white;border-color:var(--primary-color)}body.page-panel-open .content{margin-right:600px;transition:margin-right .1s ease}.chapter-nav{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;background-color:var(--card-background);border-radius:8px;margin-bottom:1.5rem;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.chapter-nav.bottom{margin-bottom:0;margin-top:1.5rem}.btn-nav{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background-color:var(--primary-color);color:white;border:none;border-radius:4px;cursor:pointer;font-size:.875rem;font-weight:500;transition:background-color .2s,transform .1s}.btn-nav:hover{background-color:var(--primary-light);transform:translateY(-1px)}.btn-nav:disabled{background-color:var(--secondary-color);opacity:.5;cursor:not-allowed;transform:none}.btn-nav .arrow{font-size:1rem}.nav-current{font-size:.9rem;color:var(--text-light);text-align:center;flex:1;padding:0 1rem}.mobile-header{display:none}.sidebar-close-btn{display:none}.sidebar-overlay{display:none}@media(max-width:768px){.mobile-header{display:flex;align-items:center;gap:1rem;position:fixed;top:0;left:0;right:0;height:56px;background-color:var(--primary-color);color:white;padding:0 1rem;z-index:200;box-shadow:0 2px 4px rgba(0,0,0,0.1)}.mobile-header h1{font-size:1.1rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hamburger-btn{display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:none;border:none;cursor:pointer;padding:10px}.hamburger-btn span{display:block;width:24px;height:3px;background-color:white;border-radius:2px;transition:transform .3s,opacity .3s}.sidebar-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,0.5);z-index:299}.sidebar-overlay.visible{display:block}.sidebar{position:fixed;top:0;left:0;width:85%;max-width:320px;height:100vh;transform:translateX(-100%);transition:transform .3s ease;z-index:300;overflow-y:auto}.sidebar.open{transform:translateX(0)}.sidebar-header{position:relative;padding-right:3rem}.sidebar-close-btn{display:block;position:absolute;top:1rem;right:1rem;width:44px;height:44px;background:none;border:none;color:white;font-size:2rem;cursor:pointer;line-height:1}.content{margin-left:0;margin-top:56px;padding:1rem;max-width:100%}.app-container{flex-direction:column}.chapter-header{flex-direction:column;align-items:flex-start}.chapter-header h2{font-size:1.25rem}.chapter-toolbar{width:100%;flex-wrap:wrap}.greek-text{font-size:1.25rem;line-height:1.7}.sentence-card{padding:1rem;margin-bottom:1rem}.controls{flex-wrap:wrap}.btn{min-height:44px;padding:.6rem 1rem}.btn-small{min-height:44px;padding:.5rem .75rem}.btn-nav{padding:.6rem .75rem;font-size:.8rem}.chapter-nav{flex-wrap:wrap;gap:.5rem}.nav-current{width:100%;order:-1;padding:0 0 .5rem 0}.vocab-toolbar{flex-direction:column;align-items:stretch}.vocab-search{width:100%}.vocab-chapter-nav{max-height:200px;overflow-y:auto}.nav-chapter-btn{min-height:36px;padding:.4rem .6rem}.vocab-card{padding:1rem}.vocab-lemma{font-size:1.15rem}.page-panel{width:100%;max-width:100%;top:0;left:0;right:0;bottom:0;z-index:400}.page-panel-resize{display:none}.page-panel-header{padding:.75rem 1rem}.btn-close-panel{width:44px;height:44px;font-size:2rem}body.page-panel-open .content{margin-right:0}.welcome-message{padding:1.5rem}.welcome-message h2{font-size:1.25rem}.translation{padding:.75rem}.chapter-item{padding:1rem 1.5rem;min-height:44px}.vocab-nav-item{padding:.75rem 1.5rem .75rem 2rem;min-height:44px}}