.header{padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-shrink:0}.header__breadcrumb{color:var(--accent);font-size:var(--font-size-base)}.header__breadcrumb-muted{color:var(--text-dim)}.header__tags{font-size:var(--font-size-tiny);color:var(--text-dim)}.header__tags-label{color:var(--text-faint);margin-right:var(--spacing-sm)}.sidebar{width:var(--sidebar-width);border-right:1px solid var(--border);overflow-y:auto;flex-shrink:0}.sidebar__category{border-bottom:1px solid var(--border-subtle)}.sidebar__category:last-child{border-bottom:none}.sidebar__category-header{padding:.75rem var(--spacing-md);font-size:var(--font-size-tiny);text-transform:uppercase;letter-spacing:.1em;color:var(--text-dim);background-color:var(--bg-elevated)}.sidebar__category-number{margin-right:var(--spacing-sm);color:var(--text-ghost)}.sidebar__thread{padding:.6rem var(--spacing-md) .6rem var(--spacing-lg);cursor:pointer;display:flex;justify-content:space-between;align-items:center;border-left:2px solid transparent;transition:background-color .1s ease}.sidebar__thread:hover{background-color:var(--bg-hover)}.sidebar__thread--selected{background-color:var(--bg-hover);border-left-color:var(--accent)}.sidebar__thread-title{color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar__thread--selected .sidebar__thread-title{color:var(--accent)}.sidebar__thread-count{font-size:var(--font-size-tiny);color:var(--text-faint);margin-left:var(--spacing-sm);flex-shrink:0}.note{padding:var(--spacing-md);margin-bottom:var(--spacing-sm);border-radius:2px;cursor:pointer;transition:background-color .1s ease}.note:hover{background-color:var(--bg-hover)}.note--selected{background-color:var(--bg-hover);outline:1px solid var(--border)}.note__date{font-size:var(--font-size-tiny);color:var(--text-dim);margin-bottom:var(--spacing-sm)}.note__content{line-height:var(--line-height);color:var(--text-secondary)}.note__empty{color:var(--text-faint);font-style:italic}.note__editor{width:100%;min-height:300px;background-color:var(--bg-secondary);border:1px solid var(--accent);color:var(--text-primary);font-family:inherit;font-size:inherit;line-height:var(--line-height);padding:var(--spacing-md);resize:vertical;outline:none}.note__editor:focus{border-color:var(--accent)}.note-content p{margin:.5rem 0}.note-content p:first-child{margin-top:0}.note-content p:last-child{margin-bottom:0}.note-content h1{color:var(--accent);font-size:1.1rem;margin:1rem 0 .5rem;font-weight:500}.note-content h1:first-child{margin-top:0}.note-content h2{color:var(--text-primary);font-size:1rem;margin:.75rem 0 .5rem;font-weight:500}.note-content h3{color:var(--text-secondary);font-size:.9rem;margin:.5rem 0 .25rem;font-weight:500}.note-content h4{color:var(--text-muted);font-size:.85rem;margin:.5rem 0 .25rem;font-weight:500}.note-content strong{color:var(--text-primary);font-weight:600}.note-content em{color:var(--text-muted);font-style:italic}.note-content code{background:var(--bg-secondary);padding:.1rem .3rem;border-radius:2px;font-size:.9em}.note-content pre{background:var(--bg-secondary);padding:.75rem;border-radius:2px;overflow-x:auto;margin:.5rem 0}.note-content pre code{background:none;padding:0}.note-content ul,.note-content ol{margin:.5rem 0;padding-left:1.5rem}.note-content li{margin:.25rem 0}.note-content hr{border:none;border-top:1px solid var(--border);margin:1rem 0}.note-content blockquote{border-left:2px solid var(--accent);padding-left:1rem;margin:.5rem 0;color:var(--text-muted)}.note-content a{color:var(--accent);text-decoration:none}.note-content a:hover{text-decoration:underline}.note-list{flex:1;overflow:hidden;display:flex;flex-direction:column;min-height:0}.note-list__header{padding:1.25rem var(--spacing-xl);border-bottom:1px solid var(--border);flex-shrink:0}.note-list__title{font-size:1rem;color:var(--accent);margin:0;font-weight:400}.note-list__notes{flex:1;overflow-y:auto;padding:var(--spacing-md) var(--spacing-xl);min-height:0}.note-list__empty{color:var(--text-faint);padding:var(--spacing-xl);text-align:center}.footer{padding:.6rem var(--spacing-lg);border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:var(--font-size-small);color:var(--text-faint);background-color:var(--bg-primary);flex-shrink:0}.footer__shortcuts{display:flex;gap:var(--spacing-lg)}.footer__shortcut{display:flex;align-items:center;gap:.4rem}.footer__shortcut-key{color:var(--text-muted);background-color:var(--bg-hover);padding:.1rem .4rem;border-radius:2px;font-size:var(--font-size-tiny)}.footer__shortcut-label{color:var(--text-dim)}.footer__right{display:flex;align-items:center;gap:var(--spacing-md)}.footer__mode{text-transform:uppercase;letter-spacing:.05em}.footer__mode--view{color:var(--text-dim)}.footer__mode--edit{color:var(--accent-green)}.footer__separator{color:var(--text-ghost)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#000c;display:flex;align-items:center;justify-content:center;z-index:100}.help-modal{background-color:var(--bg-secondary);border:1px solid var(--border);padding:var(--spacing-xl);max-width:500px;width:90%}.help-modal__title{color:var(--accent);margin-bottom:var(--spacing-lg);font-size:.9rem;font-weight:400}.help-modal__grid{display:grid;grid-template-columns:auto 1fr;gap:var(--spacing-sm) var(--spacing-lg)}.help-modal__key{color:var(--text-muted);background-color:var(--bg-primary);padding:.2rem var(--spacing-sm);border-radius:2px;font-size:var(--font-size-small);text-align:center}.help-modal__desc{color:var(--text-muted);font-size:.8rem}.help-modal__hint{color:var(--text-faint);font-size:var(--font-size-small);margin-top:var(--spacing-lg);margin-bottom:0}.new-thread-modal{background-color:var(--bg-secondary);border:1px solid var(--border);padding:var(--spacing-lg);width:400px}.new-thread-modal__label{color:var(--accent);margin-bottom:var(--spacing-xs);font-size:.8rem}.new-thread-modal__input{width:100%;background-color:var(--bg-primary);border:1px solid var(--accent);color:var(--text-primary);font-family:inherit;font-size:var(--font-size-base);padding:.75rem;outline:none;margin-top:var(--spacing-sm)}.new-thread-modal__input:focus{border-color:var(--accent)}.new-thread-modal__hint{color:var(--text-faint);font-size:var(--font-size-tiny);margin-top:.75rem;margin-bottom:0}.search-modal{background-color:var(--bg-secondary);border:1px solid var(--border);padding:var(--spacing-lg);width:500px;max-width:90%}.search-modal__input{width:100%;background-color:var(--bg-primary);border:1px solid var(--accent);color:var(--text-primary);font-family:inherit;font-size:var(--font-size-base);padding:.75rem;outline:none}.search-modal__input:focus{border-color:var(--accent)}.search-modal__results{margin-top:var(--spacing-md);max-height:300px;overflow-y:auto}.search-modal__result{padding:var(--spacing-sm) var(--spacing-md);cursor:pointer;display:flex;flex-direction:column;gap:.25rem;border-left:2px solid transparent}.search-modal__result:hover{background-color:var(--bg-primary)}.search-modal__result--selected{background-color:var(--bg-primary);border-left-color:var(--accent)}.search-modal__result-type{font-size:var(--font-size-tiny);color:var(--accent);text-transform:uppercase;letter-spacing:.05em}.search-modal__result-title{color:var(--text-primary);font-size:var(--font-size-base)}.search-modal__result-preview{color:var(--text-muted);font-size:var(--font-size-small);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.search-modal__no-results{color:var(--text-muted);padding:var(--spacing-md);text-align:center;font-size:var(--font-size-small)}.search-modal__hint{color:var(--text-faint);font-size:var(--font-size-tiny);margin-top:var(--spacing-md);margin-bottom:0}:root{--bg-primary: #1a1a1a;--bg-secondary: #222222;--bg-hover: #252525;--bg-elevated: #1e1e1e;--border: #333333;--border-subtle: #2a2a2a;--text-primary: #e8e6e3;--text-secondary: #cccccc;--text-muted: #999999;--text-dim: #666666;--text-faint: #555555;--text-ghost: #444444;--accent: #d4a574;--accent-green: #7dad7d;--font-mono: "IBM Plex Mono", "Fira Code", "SF Mono", "Monaco", "Consolas", monospace;--font-size-base: .85rem;--font-size-small: .75rem;--font-size-tiny: .7rem;--line-height: 1.7;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--sidebar-width: 280px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-mono);font-size:var(--font-size-base);line-height:var(--line-height);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{height:100vh;display:flex;flex-direction:column}.main{display:flex;flex:1;overflow:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-ghost)}