@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--primary: #3b82f6;--primary-dark: #2563eb;--primary-light: #dbeafe;--secondary: #6366f1;--background: #f9fafb;--surface: #ffffff;--sidebar-bg: #f1f5f9;--sidebar-active: #e0e7ff;--text-primary: #111827;--text-secondary: #4b5563;--text-tertiary: #9ca3af;--danger: #ef4444;--danger-light: #fee2e2;--success: #10b981;--border: #e5e7eb;--divider: #f3f4f6;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .03);--shadow: 0 4px 8px rgba(0, 0, 0, .04), 0 1px 3px rgba(0, 0, 0, .03);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .02);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .05), 0 8px 10px -6px rgba(0, 0, 0, .02);--gradient-primary: linear-gradient( 135deg, var(--primary) 0%, var(--secondary) 100% );--gradient-subtle: linear-gradient( 135deg, var(--primary-light) 0%, #e4e7ff 100% );--focus-ring: 0 0 0 2px var(--primary-light);--focus-ring-offset: 0 0 0 2px white;--transition-spring: .6s cubic-bezier(.22, 1, .36, 1);--status-saved: #10b981;--status-unsaved: #f59e0b;--status-saving: #6366f1;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--sidebar-width: 260px;--sidebar-collapsed-width: 60px;--header-height: 54px;--sidebar-item-height: 36px;--transition-quick: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .5s cubic-bezier(.18, 1.25, .4, 1)}.purple-theme{--primary: #8b5cf6;--primary-dark: #6d28d9;--primary-light: #ede9fe;--secondary: #a78bfa;--sidebar-active: #ddd6fe;--gradient-primary: linear-gradient( 135deg, var(--primary) 0%, var(--secondary) 100% );--gradient-subtle: linear-gradient( 135deg, var(--primary-light) 0%, #e5e0ff 100% );--focus-ring: 0 0 0 2px var(--primary-light)}.dark-theme.purple-theme{--primary: #a78bfa;--primary-dark: #8b5cf6;--primary-light: #4c1d95;--secondary: #c4b5fd;--sidebar-active: #4c1d95}.red-theme{--primary: #ef4444;--primary-dark: #dc2626;--primary-light: #fee2e2;--secondary: #f87171;--sidebar-active: #fecaca;--gradient-primary: linear-gradient( 135deg, var(--primary) 0%, var(--secondary) 100% );--gradient-subtle: linear-gradient( 135deg, var(--primary-light) 0%, #ffd6d6 100% );--focus-ring: 0 0 0 2px var(--primary-light)}.dark-theme.red-theme{--primary: #f87171;--primary-dark: #ef4444;--primary-light: #7f1d1d;--secondary: #fca5a5;--sidebar-active: #7f1d1d}.green-theme{--primary: #10b981;--primary-dark: #059669;--primary-light: #d1fae5;--secondary: #34d399;--sidebar-active: #a7f3d0;--gradient-primary: linear-gradient( 135deg, var(--primary) 0%, var(--secondary) 100% );--gradient-subtle: linear-gradient( 135deg, var(--primary-light) 0%, #daffef 100% );--focus-ring: 0 0 0 2px var(--primary-light)}.dark-theme.green-theme{--primary: #34d399;--primary-dark: #10b981;--primary-light: #064e3b;--secondary: #6ee7b7;--sidebar-active: #064e3b}.amber-theme{--primary: #f59e0b;--primary-dark: #d97706;--primary-light: #fef3c7;--secondary: #fbbf24;--sidebar-active: #fde68a;--gradient-primary: linear-gradient( 135deg, var(--primary) 0%, var(--secondary) 100% );--gradient-subtle: linear-gradient( 135deg, var(--primary-light) 0%, #fff0c0 100% );--focus-ring: 0 0 0 2px var(--primary-light)}.dark-theme.amber-theme{--primary: #fbbf24;--primary-dark: #f59e0b;--primary-light: #78350f;--secondary: #fcd34d;--sidebar-active: #78350f}*{margin:0;padding:0;box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition-property:background-color,border-color,opacity,transform,box-shadow,color;transition-duration:.25s;transition-timing-function:cubic-bezier(.4,0,.2,1)}html{font-size:16px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,SF Pro Text,sans-serif;background-color:var(--background);color:var(--text-primary);line-height:1.5;letter-spacing:-.011em;overflow-x:hidden;height:100vh;margin:0;padding:0}.app-container{display:flex;height:100vh;width:100%;position:relative;overflow:hidden}.sidebar{width:var(--sidebar-width);height:100vh;background-color:var(--sidebar-bg);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:width var(--transition-normal);position:relative;overflow-x:hidden;flex-shrink:0;font-size:.9rem}.sidebar.closed{width:var(--sidebar-collapsed-width)}.sidebar-header{height:var(--header-height);padding:var(--space-sm) var(--space-md);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.app-logo{display:flex;align-items:center;font-size:.8rem;font-weight:600;color:var(--text-primary);margin:0;overflow:hidden}.logo-icon{font-size:1rem;margin-right:var(--space-sm);flex-shrink:0}.logo-text{white-space:nowrap;animation:fadeIn .5s var(--transition-normal)}.toggle-sidebar{background:transparent;border:none;width:24px;height:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary);opacity:.6;transition:opacity var(--transition-quick);padding:0;box-shadow:none}.toggle-sidebar:hover{opacity:1;background:transparent;transform:none;box-shadow:none}.sidebar-nav{flex:1;padding:var(--space-lg) var(--space-sm) var(--space-md) var(--space-sm);overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-xs)}.nav-section{margin-top:var(--space-lg);padding-bottom:var(--space-xs)}.nav-section-title{padding:0 var(--space-md);font-size:.75rem;font-weight:600;text-transform:uppercase;color:var(--text-tertiary);letter-spacing:.05em;margin-bottom:var(--space-xs)}.nav-item{display:flex;align-items:center;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);color:var(--text-secondary);text-decoration:none;transition:all 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ease}h1{font-size:1.875rem;font-weight:700;margin-bottom:var(--space-lg);color:var(--text-primary);letter-spacing:-.025em;line-height:1.2;position:relative;display:inline-block}h1:after{content:"";position:absolute;bottom:-8px;left:0;width:40px;height:3px;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:var(--radius-full)}h2{font-size:1.25rem;font-weight:600;margin-bottom:var(--space-xs);color:var(--text-primary);letter-spacing:-.015em}p{font-size:.95rem;font-weight:400;color:var(--text-secondary);margin-bottom:var(--space-xs);line-height:1.6}button{background-color:var(--primary);color:#fff;border:none;border-radius:var(--radius-md);padding:var(--space-sm) var(--space-lg);font-size:.95rem;font-weight:500;cursor:pointer;transition:all var(--transition-normal);letter-spacing:-.01em;box-shadow:0 1px 3px 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h2{margin-bottom:var(--space-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-excerpt{font-size:.95rem;line-height:1.6;margin-bottom:var(--space-lg);color:var(--text-secondary);overflow:hidden;display:-webkit-box;-webkit-line-clamp:6;line-clamp:6;-webkit-box-orient:vertical}.note-meta{display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-tertiary);margin-top:auto}.note-time{position:relative;padding-left:16px}.note-time:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:10px;height:10px;background-color:var(--primary-light);border-radius:50%}.note-length{opacity:.75}.note-card-actions{display:flex;justify-content:flex-end;gap:var(--space-sm);margin-top:auto;padding-top:var(--space-lg);opacity:0;transform:translateY(8px);transition:all .3s ease}.note-card:hover .note-card-actions{opacity:1;transform:translateY(0)}.note-card-actions button{padding:var(--space-xs) var(--space-md);font-size:.875rem;border-radius:var(--radius-md)}.note-card-actions button:last-child{background-color:var(--danger)}.note-card-actions button:last-child:hover{box-shadow:0 4px 12px #ef444426}.note-card.deleting{animation:deleteAnimation .5s ease forwards}.note-create-container{position:relative}.note-form{background-color:var(--surface);padding:var(--space-xl);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);margin-bottom:var(--space-2xl);border:1px solid rgba(235,238,242,.8);transform:translateY(0);transition:transform .35s var(--transition-bounce),box-shadow .35s ease;position:relative;overflow:hidden}.note-form:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));transform:scaleX(0);transition:transform .5s 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rgba(235,238,242,.8)}.note-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg)}.note-header-left{display:flex;align-items:center;gap:var(--space-md)}.back-button{background-color:transparent;color:var(--text-secondary);box-shadow:none;padding:var(--space-xs) var(--space-md);border-radius:var(--radius-md);border:1px solid var(--border)}.back-button:hover{background-color:var(--divider);color:var(--text-primary);border-color:var(--border)}.button-icon{margin-right:var(--space-xs);font-weight:700}.note-status{display:flex;align-items:center;gap:var(--space-xs);font-size:.8rem;color:var(--text-tertiary)}.status-indicator{width:8px;height:8px;border-radius:50%;background-color:var(--text-tertiary)}.status-indicator.saved{background-color:var(--status-saved);box-shadow:0 0 0 2px #10b9811a}.status-indicator.saving{background-color:var(--status-saving);box-shadow:0 0 0 2px #6366f11a;animation:pulse 1.5s 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var(--border)}.danger-button{background-color:var(--danger)}.danger-button:hover{box-shadow:0 4px 12px #ef444426}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0006;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .3s ease}.modal-content{background-color:var(--surface);border-radius:var(--radius-lg);padding:var(--space-xl);width:90%;max-width:500px;box-shadow:var(--shadow-xl);animation:modalSlideIn .4s var(--transition-spring)}.modal-content h3{margin-bottom:var(--space-md);color:var(--text-primary);font-size:1.25rem}body.dark-theme{--background: #121212;--surface: #1e1e1e;--sidebar-bg: #181818;--sidebar-active: #2b2b52;--text-primary: #e5e7eb;--text-secondary: #9ca3af;--text-tertiary: #6b7280;--border: #2e2e2e;--divider: #2e2e2e;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow: 0 4px 6px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px rgba(0, 0, 0, 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ease;position:relative;min-height:32px}.book-header:hover{background-color:#00000008}.book-header.selected{background-color:var(--primary-light);color:var(--primary)}.book-expand-toggle{flex-shrink:0;width:16px;height:16px;display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);opacity:.7;font-size:.5rem;padding-bottom:1px}.book-info{display:flex;align-items:center;flex:1;min-width:0}.book-icon{font-size:1rem;width:24px;text-align:center;display:inline-flex;justify-content:center;margin-right:var(--space-xs);flex-shrink:0}.book-details{display:flex;flex-direction:column;flex:1;min-width:0}.book-name{font-size:.85rem;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-actions{opacity:0;transition:opacity .2s ease;padding-left:var(--space-xs)}.book-header:hover .book-actions{opacity:1}.book-menu-trigger{width:22px;height:22px;display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);cursor:pointer;font-weight:700;font-size:1rem;border-radius:var(--radius-full);transition:all .2s ease}.book-menu-trigger:hover{background-color:#0000000d;color:var(--text-primary)}.book-notes{display:flex;flex-direction:column;padding-left:calc(16px + var(--space-sm));margin-bottom:1px}.note-item{display:flex;align-items:center;padding:var(--space-xs) var(--space-xs);text-decoration:none;color:var(--text-secondary);border-radius:var(--radius-sm);margin:1px 0;transition:all .2s ease;-webkit-user-select:none;user-select:none;position:relative;font-size:.85rem;min-height:28px;max-height:28px}.note-item:hover{background-color:var(--divider);color:var(--text-primary)}.note-item.active{background-color:var(--primary-light);color:var(--primary);font-weight:500}.note-item.dragging{opacity:.5;background-color:var(--divider)}.book-header.droppable{background-color:var(--primary-light);box-shadow:0 0 0 1px var(--primary)}.note-item-content{display:flex;align-items:center;justify-content:space-between;width:100%;min-width:0;gap:var(--space-xs)}.note-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.8rem;line-height:1.2;padding-top:1px}.note-date{font-size:.65rem;color:var(--text-tertiary);white-space:nowrap;flex-shrink:0}.empty-book-message{padding:var(--space-xs);color:var(--text-tertiary);font-size:.75rem;display:flex;flex-direction:column;gap:var(--space-xs)}.create-note-button-small{background:none;border:1px dashed var(--border);color:var(--text-tertiary);padding:2px var(--space-sm);font-size:.75rem;border-radius:var(--radius-sm);cursor:pointer;box-shadow:none}.create-note-button-small:hover{background-color:var(--primary-light);border-color:var(--primary-light);color:var(--primary);transform:none;box-shadow:none}.no-books-message p{padding:var(--space-sm);text-align:center;color:var(--text-tertiary);font-size:.85rem}.create-first-book-button{background-color:var(--primary-light);color:var(--primary);margin-top:var(--space-sm);border-radius:var(--radius-md);padding:var(--space-xs) var(--space-sm);font-size:.8rem;box-shadow:none}.create-first-book-button:hover{background-color:var(--primary);color:#fff;transform:translateY(-1px)}.sidebar-footer{padding:var(--space-sm);border-top:1px solid var(--border);font-size:.75rem;color:var(--text-tertiary);animation:fadeIn .3s;background-color:#ffffff80;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.time-display{font-size:.9rem;font-weight:500;margin-bottom:var(--space-xs);color:var(--text-primary)}.date-display{font-size:.7rem;margin-bottom:var(--space-sm);opacity:.9}.user-actions{display:flex;gap:var(--space-sm);justify-content:flex-start;padding-top:var(--space-xs);border-top:1px dashed var(--border)}.icon-button{background:transparent;border:none;width:26px;height:26px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary);transition:all var(--transition-quick);padding:0;box-shadow:none;font-size:.9rem}.icon-button:hover{background-color:var(--primary-light);color:var(--primary);transform:none;box-shadow:none}.book-modal{max-width:380px}.book-form{display:flex;flex-direction:column;gap:var(--space-md);margin:var(--space-md) 0}.form-group{display:flex;flex-direction:column;gap:var(--space-xs)}.form-group label{font-size:.85rem;font-weight:500;color:var(--text-secondary)}.form-group input{padding:var(--space-sm) var(--space-md);border:1px solid var(--border);border-radius:var(--radius-md);font-size:.9rem;color:var(--text-primary);background-color:var(--surface);height:36px}.form-group input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 2px var(--primary-light)}.emoji-picker{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.emoji-option{width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;background:none;border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;box-shadow:none;padding:0}.emoji-option:hover{background-color:var(--background);transform:translateY(-1px)}.emoji-option.selected{background-color:var(--primary-light);border-color:var(--primary)}.mobile-sidebar-toggle{display:none;position:fixed;bottom:16px;left:16px;width:50px;height:50px;border-radius:50%;background-color:var(--primary);color:#fff;font-size:1.8rem;justify-content:center;align-items:center;box-shadow:0 2px 10px #0003;border:none;z-index:1050;animation:fadeIn .3s ease;transition:transform .3s var(--transition-spring);will-change:transform}.mobile-sidebar-toggle:hover{transform:scale(1.05)}.mobile-sidebar-toggle:active{transform:scale(.95)}.sidebar-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0006;z-index:990;animation:fadeIn .2s ease}.main-content{flex:1;overflow-y:auto;padding:0;transition:margin-left var(--transition-quick),opacity .4s ease;opacity:0;transform:translateY(10px);background-color:var(--background);position:relative}.main-content.mounted{opacity:1;transform:translateY(0)}body{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent}body::-webkit-scrollbar{width:8px}body::-webkit-scrollbar-track{background:transparent}body::-webkit-scrollbar-thumb{background-color:var(--scrollbar-thumb);border-radius:10px;border:2px solid transparent}body::-webkit-scrollbar-thumb:hover{background-color:var(--scrollbar-thumb-hover)}.notes-container,.note-view,textarea{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent}.notes-container::-webkit-scrollbar,.note-view::-webkit-scrollbar,textarea::-webkit-scrollbar{width:6px}.notes-container::-webkit-scrollbar-track,.note-view::-webkit-scrollbar-track,textarea::-webkit-scrollbar-track{background:transparent}.notes-container::-webkit-scrollbar-thumb,.note-view::-webkit-scrollbar-thumb,textarea::-webkit-scrollbar-thumb{background-color:var(--scrollbar-thumb);border-radius:10px}.notes-container::-webkit-scrollbar-thumb:hover,.note-view::-webkit-scrollbar-thumb:hover,textarea::-webkit-scrollbar-thumb:hover{background-color:var(--scrollbar-thumb-hover)}@media (max-width: 768px){.sidebar{position:fixed;z-index:1000;box-shadow:0 0 15px #0000001a;width:280px;transform:translate(-100%)}.sidebar.closed{transform:translate(-100%);width:280px}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block}.mobile-sidebar-toggle{display:flex}.book-header{padding-right:var(--space-sm)}.toggle-sidebar{font-size:.9rem}}@media (max-width: 480px){.sidebar{width:85%}.book-notes{padding-left:24px}.mobile-sidebar-toggle{width:45px;height:45px;font-size:1.6rem}}.dark-theme .sidebar{background-color:var(--sidebar-bg)}.dark-theme .sidebar-header,.dark-theme .sidebar-footer{background-color:#181818cc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.dark-theme .nav-item:hover,.dark-theme .book-header:hover{background-color:#ffffff0d}.dark-theme .icon-button:hover{background-color:#ffffff1a}.dark-theme .sidebar-footer{border-top-color:var(--border)}.dark-theme .user-actions{border-top-color:#ffffff1a}.dark-theme .sidebar-overlay{background-color:#0009}.dark-theme .mobile-sidebar-toggle{background-color:var(--primary-dark);box-shadow:0 2px 8px #0006}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translate(-100%)}to{transform:translate(0)}}