:root,:root[data-theme=dark]{color-scheme:dark;--color-bg: #101413;--color-bg-sidebar: #151a18;--color-bg-rail: #0d1110;--color-bg-raised: #1b211f;--color-bg-hover: #222927;--color-bg-active: #28302d;--color-bg-input: #171d1b;--color-accent: #4ade80;--color-accent-strong: #22c55e;--color-accent-muted: #2f9e6e;--color-accent-subtle: rgba(74, 222, 128, .12);--color-on-accent: #08120c;--color-text: #ece9e2;--color-text-secondary: #98a39d;--color-text-faint: #6b7672;--color-border: #262e2b;--color-border-strong: #364039;--color-warning: #f0b429;--color-error: #ef6461;--color-success: #4ade80;--color-info: #5eb1ef;--color-selection: rgba(74, 222, 128, .22);--color-mark-bg: rgba(74, 222, 128, .25);--color-mark-text: #eafff2;--hl-yellow: rgba(240, 180, 41, .32);--hl-green: rgba(74, 222, 128, .28);--hl-blue: rgba(94, 177, 239, .3);--hl-purple: rgba(178, 132, 245, .32);--hl-red: rgba(239, 100, 97, .32);--hl-orange: rgba(247, 146, 58, .32);--hl-grey: rgba(152, 163, 157, .3);--pc-yellow: #f0b429;--pc-green: #4ade80;--pc-blue: #5eb1ef;--pc-purple: #b284f5;--pc-red: #ef6461;--pc-orange: #f7923a;--pc-grey: #98a39d;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 10px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--font-size-ui: .875rem;--font-size-sm: .8125rem;--font-size-xs: .75rem;--font-size-editor: 1rem;--transition-fast: .12s ease;--transition-medium: .16s ease;--focus-ring: 0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-accent-muted);--shadow-overlay: 0 8px 32px rgba(0, 0, 0, .45);--rail-width: 3rem;--sidebar-width: 16.5rem;--right-sidebar-width: 17.5rem;--statusbar-height: 1.625rem;--tabbar-height: 2.375rem}:root[data-theme=light]{color-scheme:light;--color-bg: #f6f8f7;--color-bg-sidebar: #eef1ef;--color-bg-rail: #e7ebe9;--color-bg-raised: #ffffff;--color-bg-hover: #e4e9e6;--color-bg-active: #dae1dd;--color-bg-input: #ffffff;--color-accent: #16a34a;--color-accent-strong: #15803d;--color-accent-muted: #1f9d5f;--color-accent-subtle: rgba(22, 163, 74, .1);--color-on-accent: #ffffff;--color-text: #20261f;--color-text-secondary: #5c6862;--color-text-faint: #8b958f;--color-border: #d8dedb;--color-border-strong: #bcc6c1;--color-warning: #b7791f;--color-error: #c53030;--color-success: #15803d;--color-info: #2b6cb0;--color-selection: rgba(22, 163, 74, .18);--color-mark-bg: rgba(22, 163, 74, .18);--color-mark-text: #14321f;--hl-yellow: rgba(217, 155, 0, .28);--hl-green: rgba(22, 163, 74, .22);--hl-blue: rgba(43, 108, 176, .22);--hl-purple: rgba(128, 90, 213, .24);--hl-red: rgba(197, 48, 48, .22);--hl-orange: rgba(221, 107, 32, .26);--hl-grey: rgba(92, 104, 98, .22);--pc-yellow: #b7791f;--pc-green: #16a34a;--pc-blue: #2b6cb0;--pc-purple: #805ad5;--pc-red: #c53030;--pc-orange: #dd6b20;--pc-grey: #5c6862;--focus-ring: 0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-accent);--shadow-overlay: 0 8px 32px rgba(30, 40, 35, .18)}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%;overflow:hidden;overscroll-behavior:none}body{margin:0;font-family:var(--font-ui);font-size:var(--font-size-ui);line-height:1.5;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;overscroll-behavior:none}::selection{background:var(--color-selection)}h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0}button,input,select,textarea{font:inherit;color:inherit}button{background:none;border:none;padding:0;cursor:pointer}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--radius-sm)}.cm-content:focus-visible,.cm-editor:focus-visible{box-shadow:none}@media(prefers-reduced-motion:reduce){:root{--transition-fast: 0ms;--transition-medium: 0ms}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}:root[data-motion=reduced]{--transition-fast: 0ms;--transition-medium: 0ms}*{scrollbar-width:thin;scrollbar-color:var(--color-border-strong) transparent}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:5px;border:2px solid transparent;background-clip:content-box}*::-webkit-scrollbar-track{background:transparent}.btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:.375rem .75rem;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-bg-raised);color:var(--color-text);font-size:var(--font-size-ui);transition:background var(--transition-fast),border-color var(--transition-fast);user-select:none}.btn:hover{background:var(--color-bg-hover);border-color:var(--color-border-strong);text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-accent-strong);border-color:var(--color-accent-strong);color:var(--color-on-accent);font-weight:600}.btn-primary:hover{background:var(--color-accent);border-color:var(--color-accent)}.btn-danger{color:var(--color-error);border-color:color-mix(in srgb,var(--color-error) 40%,transparent)}.btn-ghost{border-color:transparent;background:transparent}.btn-ghost:hover{background:var(--color-bg-hover)}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;border-radius:var(--radius-sm);color:var(--color-text-secondary);transition:background var(--transition-fast),color var(--transition-fast)}.icon-btn:hover{background:var(--color-bg-hover);color:var(--color-text)}.input{width:100%;padding:.4rem .65rem;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-bg-input);color:var(--color-text);transition:border-color var(--transition-fast)}.input:focus-visible{border-color:var(--color-accent-muted);box-shadow:none;outline:2px solid transparent}.input::placeholder{color:var(--color-text-faint)}select.input{appearance:auto}.kbd{font-family:var(--font-mono);font-size:var(--font-size-xs);background:var(--color-bg-raised);border:1px solid var(--color-border);border-bottom-width:2px;border-radius:var(--radius-sm);padding:.05rem .35rem;color:var(--color-text-secondary);white-space:nowrap}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.text-secondary{color:var(--color-text-secondary)}.text-faint{color:var(--color-text-faint)}.text-small{font-size:var(--font-size-sm)}.app-shell{display:flex;height:100%;overflow:hidden}.activity-rail{display:flex;flex-direction:column;align-items:center;gap:var(--space-1);width:var(--rail-width);flex-shrink:0;padding:var(--space-2) 0;background:var(--color-bg-rail);border-right:1px solid var(--color-border)}.activity-rail .rail-spacer{flex:1}.rail-btn{display:flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:background var(--transition-fast),color var(--transition-fast);position:relative}.rail-btn:hover{background:var(--color-bg-hover);color:var(--color-text)}.rail-btn[aria-pressed=true],.rail-btn.active{background:var(--color-accent-subtle);color:var(--color-accent)}.rail-logo{width:2rem;height:2rem;margin-bottom:var(--space-2);border-radius:var(--radius-md)}.sidebar{display:flex;flex-direction:column;width:var(--sidebar-width);min-width:12rem;flex-shrink:0;background:var(--color-bg-sidebar);border-right:1px solid var(--color-border);overflow:hidden}.sidebar-header{display:flex;align-items:center;gap:var(--space-1);padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border);min-height:2.6rem}.sidebar-title{font-size:var(--font-size-sm);font-weight:650;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-body{flex:1;overflow-y:auto;padding:var(--space-2)}.sidebar-section-label{font-size:var(--font-size-xs);font-weight:650;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-faint);padding:var(--space-2) var(--space-2) var(--space-1)}.file-tree{list-style:none;margin:0;padding:0;user-select:none}.file-tree ul{list-style:none;margin:0;padding-left:var(--space-4)}.tree-item{display:flex;align-items:center;gap:var(--space-1);width:100%;text-align:left;padding:.22rem var(--space-2);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--font-size-ui);transition:background var(--transition-fast);overflow:hidden;border:1px solid transparent}.tree-item:hover{background:var(--color-bg-hover);color:var(--color-text)}.tree-item.active{background:var(--color-bg-active);color:var(--color-text)}.tree-item.drop-target{border-color:var(--color-accent-muted);background:var(--color-accent-subtle)}.tree-item .tree-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-item .tree-chevron{flex-shrink:0;transition:transform var(--transition-fast);color:var(--color-text-faint)}.tree-item .tree-chevron.open{transform:rotate(90deg)}.tree-item .pin-indicator{color:var(--color-accent-muted);flex-shrink:0}.main-area{display:flex;flex-direction:column;flex:1;min-width:0;min-height:0;background:var(--color-bg)}.tabs-bar{display:flex;align-items:stretch;height:var(--tabbar-height);border-bottom:1px solid var(--color-border);background:var(--color-bg-sidebar);overflow-x:auto;scrollbar-width:none}.tabs-bar::-webkit-scrollbar{display:none}.tab{display:flex;align-items:center;gap:var(--space-2);padding:0 var(--space-3);max-width:14rem;min-width:6rem;border-right:1px solid var(--color-border);color:var(--color-text-secondary);font-size:var(--font-size-sm);cursor:pointer;position:relative;background:transparent;transition:background var(--transition-fast)}.tab:hover{background:var(--color-bg-hover)}.tab.active{background:var(--color-bg);color:var(--color-text)}.tab.active:after{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--color-accent)}.tab .tab-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tab .tab-close{opacity:0}.tab:hover .tab-close,.tab.active .tab-close{opacity:1}.tab .dirty-dot{width:7px;height:7px;border-radius:50%;background:var(--color-warning);flex-shrink:0}.note-view{flex:1;display:flex;flex-direction:column;min-height:0}.note-header{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-3);border-bottom:1px solid var(--color-border);flex-shrink:0;min-width:0}.note-header-crumbs{flex:1;min-width:0;display:flex;align-items:center}.note-header-actions{display:flex;align-items:center;gap:var(--space-2);flex-shrink:0}.note-header-tools,.note-header-view{display:flex;align-items:center;gap:var(--space-2)}.outline-backdrop{position:fixed;inset:0;z-index:108;background:#00000040;border:none}.outline-drawer{position:fixed;top:0;right:0;bottom:0;z-index:109;width:min(20rem,82vw);display:flex;flex-direction:column;background:var(--color-bg-sidebar);border-left:1px solid var(--color-border);box-shadow:var(--shadow-overlay);transform:translate(100%);transition:transform var(--transition-medium)}.outline-drawer.open{transform:translate(0)}.outline-head{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3);padding-top:max(var(--space-3),env(safe-area-inset-top));border-bottom:1px solid var(--color-border);font-weight:650}.outline-body{flex:1;overflow-y:auto;padding:var(--space-2);padding-bottom:max(var(--space-4),env(safe-area-inset-bottom))}.outline-item{--ol: color-mix(in srgb, var(--color-text) 15%, transparent);position:relative;display:flex;align-items:center;gap:1px;width:100%;border-radius:var(--radius-sm);background-repeat:no-repeat;background-size:1px 100%}.outline-item:hover{background-color:var(--color-bg-hover)}.outline-caret,.outline-caret-spacer{flex:0 0 auto;width:1.15rem;height:1.15rem;display:inline-flex;align-items:center;justify-content:center}.outline-caret{border:none;background:none;padding:0;color:var(--color-text-faint);cursor:pointer;border-radius:var(--radius-sm)}.outline-caret:hover{color:var(--color-text);background:var(--color-bg-hover)}.outline-caret svg{transition:transform var(--transition-fast)}.outline-caret.collapsed svg{transform:rotate(-90deg)}.outline-label{flex:1 1 auto;min-width:0;text-align:left;border:none;background:none;padding:7px var(--space-2) 7px 0;color:var(--color-text-secondary);font-size:var(--font-size-sm);cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.outline-item:hover .outline-label{color:var(--color-text)}.outline-l1>.outline-label{font-weight:650;color:var(--color-text)}.outline-l1{padding-left:.35rem}.outline-l2{padding-left:1.25rem;background-image:linear-gradient(var(--ol),var(--ol));background-position:.6rem 0}.outline-l3{padding-left:2.15rem;background-image:linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol));background-position:.6rem 0,1.5rem 0}.outline-l4{padding-left:3.05rem;background-image:linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol));background-position:.6rem 0,1.5rem 0,2.4rem 0}.outline-l5{padding-left:3.95rem;background-image:linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol));background-position:.6rem 0,1.5rem 0,2.4rem 0,3.3rem 0}.outline-l6{padding-left:4.85rem;background-image:linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol)),linear-gradient(var(--ol),var(--ol));background-position:.6rem 0,1.5rem 0,2.4rem 0,3.3rem 0,4.2rem 0}.outline-head-actions{display:flex;align-items:center;gap:var(--space-1)}@media(max-width:900px){.outline-drawer{background:color-mix(in srgb,var(--color-bg-sidebar) 82%,transparent);-webkit-backdrop-filter:blur(22px) saturate(180%);backdrop-filter:blur(22px) saturate(180%)}}@media(max-width:900px){.note-header{flex-direction:column;align-items:stretch;gap:var(--space-1);padding:var(--space-2) var(--space-3)}.note-header-actions{justify-content:space-between}}.breadcrumbs{display:flex;align-items:center;gap:.15rem;font-size:var(--font-size-sm);overflow:hidden;white-space:nowrap;min-width:0}.breadcrumbs .crumb-group{display:inline-flex;align-items:center;gap:.15rem;min-width:0}.breadcrumbs .crumb{overflow:hidden;text-overflow:ellipsis}.breadcrumbs .crumb-sep{color:var(--color-text-faint);flex-shrink:0}.breadcrumbs .crumb-link{color:var(--color-text-secondary);border-radius:var(--radius-sm);padding:0 .2rem}.breadcrumbs .crumb-link:hover{background:var(--color-bg-hover);color:var(--color-text)}.breadcrumbs .crumb-current{color:var(--color-text);font-weight:600}.search-modes{display:flex;gap:var(--space-1);margin-top:var(--space-2)}.mode-chip{padding:.2rem .6rem;border-radius:999px;border:1px solid var(--color-border);color:var(--color-text-secondary);font-size:var(--font-size-xs);transition:background var(--transition-fast)}.mode-chip:hover{background:var(--color-bg-hover)}.mode-chip.active{background:var(--color-accent-subtle);border-color:var(--color-accent-muted);color:var(--color-accent)}.search-status{display:flex;align-items:center;gap:.35rem;font-size:var(--font-size-sm);color:var(--color-text-secondary);padding:var(--space-2) 0}.slash-menu{position:fixed;z-index:260;display:flex;width:420px;max-width:calc(100vw - 16px);max-height:460px;background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-overlay);overflow:hidden;animation:slash-in .12s ease}@keyframes slash-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.slash-menu{animation:none}}.slash-menu-sheet{left:0;right:0;width:100%;max-width:100%;max-height:45vh;flex-direction:column;border-radius:var(--radius-lg) var(--radius-lg) 0 0;border-bottom:none;background:color-mix(in srgb,var(--color-bg-raised) 80%,transparent);-webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);animation:sheet-in .34s cubic-bezier(.32,.72,0,1)}.slash-menu-sheet .slash-list{flex:1;padding-bottom:max(var(--space-2),env(safe-area-inset-bottom))}@keyframes sheet-in{0%{transform:translateY(100%)}}.slash-list{flex:1 1 58%;min-width:0;overflow-y:auto;padding:var(--space-2)}.slash-group+.slash-group{margin-top:var(--space-1)}.slash-group-label{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;background:var(--color-bg-raised);font-size:var(--font-size-xs);font-weight:650;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-faint);padding:.35rem .5rem .2rem}.slash-group-clear{display:inline-flex;align-items:center;border:none;background:none;color:var(--color-text-faint);cursor:pointer;padding:2px;border-radius:var(--radius-sm)}.slash-group-clear:hover{background:var(--color-bg-hover);color:var(--color-text)}.slash-item{display:flex;align-items:center;gap:.6rem;padding:.4rem .5rem;border-radius:var(--radius-md);cursor:pointer}.slash-item.selected{background:var(--color-accent-subtle)}.slash-item.disabled{opacity:.5;cursor:not-allowed}.slash-item-icon{display:flex;align-items:center;justify-content:center;width:1.85rem;height:1.85rem;flex-shrink:0;border-radius:var(--radius-sm);background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-accent)}.slash-item.selected .slash-item-icon{border-color:var(--color-accent-muted)}.slash-item-body{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.25}.slash-item-title{font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.slash-item-title .slash-hl{background:transparent;color:var(--color-accent);font-weight:700}.slash-item-desc{font-size:var(--font-size-xs);color:var(--color-text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.slash-item-shortcut{flex-shrink:0}.slash-fav{flex-shrink:0;width:1.4rem;height:1.4rem;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--color-text-faint);opacity:0}.slash-item:hover .slash-fav,.slash-item.selected .slash-fav,.slash-fav.on{opacity:1}.slash-fav.on{color:var(--color-warning)}.slash-fav:hover{background:var(--color-bg-hover);color:var(--color-warning)}.slash-empty{padding:var(--space-4);text-align:center;color:var(--color-text-faint);font-size:var(--font-size-sm)}.slash-preview{flex:0 0 42%;border-left:1px solid var(--color-border);padding:var(--space-3);display:flex;flex-direction:column;gap:var(--space-2);background:var(--color-bg-sidebar);overflow-y:auto}.slash-preview-head{display:flex;align-items:center;gap:var(--space-2)}.slash-preview-title{display:block;font-weight:650}.slash-preview-cat{display:block;font-size:var(--font-size-xs);color:var(--color-text-faint)}.slash-preview-desc{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.5}.slash-preview-example{margin:0;padding:var(--space-2);background:var(--color-bg-input);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:var(--font-size-xs);color:var(--color-text);white-space:pre-wrap;overflow-x:auto}.slash-preview-hint{margin-top:auto;display:flex;flex-wrap:wrap;gap:.3rem;align-items:center;padding-top:var(--space-2)}@media(max-width:560px){.slash-preview{display:none}.slash-menu{width:320px}}.math-menu{position:absolute;top:calc(100% + 4px);right:0;z-index:200;width:20rem;max-height:24rem;overflow-y:auto;background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-overlay);padding:var(--space-2)}.math-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:3px}.math-symbol{height:2rem;border-radius:var(--radius-sm);border:1px solid var(--color-border);color:var(--color-text);font-size:var(--font-size-sm);transition:background var(--transition-fast),border-color var(--transition-fast)}.math-symbol:hover{background:var(--color-accent-subtle);border-color:var(--color-accent-muted);color:var(--color-accent)}.starter-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2)}.starter-card{display:flex;flex-direction:column;align-items:flex-start;gap:.2rem;padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-raised);text-align:left;transition:border-color var(--transition-fast),background var(--transition-fast)}.starter-card:hover{border-color:var(--color-border-strong);background:var(--color-bg-hover)}.starter-card.selected{border-color:var(--color-accent-muted);background:var(--color-accent-subtle)}.starter-card .starter-icon{color:var(--color-accent)}.starter-card .starter-name{font-weight:650}.starter-card .starter-desc{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.help-tabs{display:flex;gap:var(--space-2)}.help-topic{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:0;margin-bottom:var(--space-2);overflow:hidden}.help-topic>summary{cursor:pointer;padding:var(--space-3);font-weight:600;list-style:none}.help-topic>summary::-webkit-details-marker{display:none}.help-topic>summary:before{content:"▸";display:inline-block;margin-right:.5em;color:var(--color-text-faint);transition:transform var(--transition-fast)}.help-topic[open]>summary:before{transform:rotate(90deg)}.help-topic>p{padding:0 var(--space-3) var(--space-3);color:var(--color-text-secondary);font-size:var(--font-size-sm);line-height:1.6}@media(max-width:600px){.starter-grid{grid-template-columns:1fr}}.vault-name-btn{display:flex;align-items:center;gap:.3rem;background:none;border:none;padding:.1rem .3rem;border-radius:var(--radius-sm);color:var(--color-text);cursor:pointer}.vault-name-btn:hover{background:var(--color-bg-hover)}.vault-list{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-4)}.vault-row{display:flex;align-items:center;gap:var(--space-3);text-align:left;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-raised);transition:border-color var(--transition-fast),background var(--transition-fast)}.vault-row:hover{border-color:var(--color-accent-muted);background:var(--color-bg-hover)}.vault-row-icon{color:var(--color-accent);flex-shrink:0}.vault-row-text{flex:1;min-width:0}.vault-row-name{display:block;font-weight:600}.vault-row-meta{display:block;font-size:var(--font-size-xs);color:var(--color-text-faint)}.vault-row-current{display:inline-flex;align-items:center;gap:.25rem;font-size:var(--font-size-xs);color:var(--color-accent)}.vault-switcher-actions{display:flex;gap:var(--space-2);flex-wrap:wrap;border-top:1px solid var(--color-border);padding-top:var(--space-3)}.color-picker-anchor{position:absolute;top:calc(100% + 4px);right:0;z-index:300}.color-picker{display:flex;gap:4px;padding:6px;background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-overlay)}.color-swatch{width:1.3rem;height:1.3rem;border-radius:50%;border:2px solid transparent;display:inline-flex;align-items:center;justify-content:center;color:var(--color-text-secondary);transition:transform var(--transition-fast)}.color-swatch:hover{transform:scale(1.12)}.color-swatch.selected{border-color:var(--color-text)}.color-swatch.color-clear{background:var(--color-bg-input);border:1px dashed var(--color-border-strong)}.tree-color-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.pdf-viewer{flex:1;display:flex;flex-direction:column;min-height:0;background:var(--color-bg)}.pdf-toolbar{display:flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border-bottom:1px solid var(--color-border);background:var(--color-bg-sidebar);flex-shrink:0}.pdf-page-indicator{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-right:var(--space-2);min-width:6rem}.pdf-toolbar-sep{width:1px;height:1.2rem;background:var(--color-border);margin:0 var(--space-1)}.pdf-toolbar .icon-btn.active{background:var(--color-accent-subtle);color:var(--color-accent)}.pdf-pages{flex:1;overflow-y:auto;padding:var(--space-4);display:flex;flex-direction:column;align-items:center;gap:var(--space-4);background:var(--color-bg-rail)}.pdf-zoom-label{min-width:2.6rem;text-align:center}.pdf-page{position:relative;flex-shrink:0;background:#fff;border-radius:var(--radius-sm);box-shadow:var(--shadow-overlay);overflow:hidden}.pdf-page canvas{display:block;width:100%;height:100%}.pdf-page-indicator{display:inline-flex;align-items:center;gap:var(--space-1);min-width:auto}.pdf-page-input{width:3rem;padding:2px 4px;text-align:center;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);font-size:var(--font-size-sm);-moz-appearance:textfield;appearance:textfield}.pdf-page-input::-webkit-outer-spin-button,.pdf-page-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.pdf-body{flex:1;display:flex;min-height:0}.pdf-thumbs{width:148px;flex-shrink:0;overflow-y:auto;padding:var(--space-3);display:flex;flex-direction:column;gap:var(--space-2);border-right:1px solid var(--color-border);background:var(--color-bg-sidebar)}.pdf-thumb{display:flex;flex-direction:column;align-items:center;gap:2px;padding:var(--space-1);border:1px solid transparent;border-radius:var(--radius-sm);background:none;cursor:pointer;color:var(--color-text-secondary)}.pdf-thumb:hover{background:var(--color-bg-hover)}.pdf-thumb.active{border-color:var(--color-accent);color:var(--color-accent)}.pdf-thumb-canvas{display:block;width:100%;background:#fff;border-radius:2px;box-shadow:var(--shadow-sm);overflow:hidden}.pdf-thumb-canvas canvas{display:block;width:100%;height:100%}.pdf-thumb-num{font-size:11px}.pdf-search{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border);background:var(--color-bg-sidebar);color:var(--color-text-secondary)}.pdf-search-input{flex:1;min-width:0;padding:4px 8px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);font-size:var(--font-size-sm)}.pdf-search-count{min-width:3.5rem;text-align:right}.pdf-page .textLayer{position:absolute;inset:0;overflow:hidden;opacity:1;line-height:1;text-align:initial;z-index:2}.pdf-page .textLayer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;transform-origin:0 0}.pdf-page .textLayer ::selection{background:#78aaff66}.pdf-hl{background:#ffd60066;color:transparent;border-radius:2px}.pdf-hl.active{background:#ff910099}.pdf-split{flex:1;display:flex;min-height:0}.pdf-split-pane{flex:1 1 0;min-width:0;display:flex;flex-direction:column;min-height:0}.pdf-split-note{border-left:1px solid var(--color-border)}.pdf-embed-card{display:flex;align-items:stretch;gap:var(--space-3);width:100%;max-width:24rem;padding:0;margin:.6em 0;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-raised);color:var(--color-text);overflow:hidden;text-align:left;transition:border-color var(--transition-fast)}.pdf-embed-card:hover{border-color:var(--color-accent-muted)}.pdf-embed-thumb{width:4.5rem;flex-shrink:0;background-color:var(--color-bg-input);background-size:cover;background-position:top center;border-right:1px solid var(--color-border)}.pdf-embed-thumb-empty{background:repeating-linear-gradient(45deg,var(--color-bg-input),var(--color-bg-input) 6px,var(--color-bg-hover) 6px,var(--color-bg-hover) 12px)}.pdf-embed-body{display:flex;flex-direction:column;justify-content:center;gap:.2rem;padding:var(--space-3);min-width:0}.pdf-embed-name{display:flex;align-items:center;gap:var(--space-2);font-weight:600;overflow:hidden;text-overflow:ellipsis}.pdf-embed-icon{font-size:var(--font-size-xs);font-weight:700;color:var(--color-on-accent);background:var(--color-error);border-radius:var(--radius-sm);padding:.1rem .35rem;flex-shrink:0}.pdf-embed-hint{font-size:var(--font-size-xs);color:var(--color-text-faint)}.attachment-list{max-height:22rem;overflow-y:auto}.attachment-row{display:flex;align-items:center;gap:var(--space-2);width:100%;text-align:left;padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--color-text);overflow:hidden}.attachment-row:hover{background:var(--color-bg-hover)}.attachment-row>svg{flex:none}.attachment-row .attachment-name{font-weight:550;flex:0 1 auto;min-width:4rem}.attachment-row .attachment-path{flex:1 1 auto;min-width:0;text-align:right}.attachment-add{padding:var(--space-3) 0}.graph-legend{position:absolute;bottom:var(--space-3);right:var(--space-3);background:color-mix(in srgb,var(--color-bg-raised) 90%,transparent);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3);backdrop-filter:blur(6px);max-width:14rem}.graph-legend-row{display:flex;align-items:center;gap:var(--space-2);padding:.1rem 0;font-size:var(--font-size-sm);color:var(--color-text-secondary)}.graph-legend-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.graph-legend-label{flex:1;text-transform:capitalize}.view-switcher{display:inline-flex;gap:2px;padding:2px;border-radius:var(--radius-md);background:var(--color-bg-raised);border:1px solid var(--color-border)}.view-switcher-btn{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .55rem;border-radius:var(--radius-sm);font-size:var(--font-size-sm);color:var(--color-text-secondary);transition:background var(--transition-fast),color var(--transition-fast)}.view-switcher-btn:hover{background:var(--color-bg-hover);color:var(--color-text)}.view-switcher-btn.active{background:var(--color-accent-subtle);color:var(--color-accent)}.editor-area{flex:1;display:flex;min-height:0;position:relative}.editor-pane,.preview-pane{flex:1;min-width:0;overflow-y:auto}.editor-pane{display:flex;flex-direction:column}.split .editor-pane{border-right:1px solid var(--color-border)}.preview-pane{padding:var(--space-5) var(--space-6)}.preview-content{max-width:var(--editor-line-width, 46rem);margin:0 auto}.source-view{display:flex;flex-direction:column;padding:0}.source-toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-bottom:1px solid var(--color-border);position:sticky;top:0;background:var(--color-bg);z-index:1}.source-pre{margin:0;padding:var(--space-4) var(--space-5);font-family:var(--font-mono);font-size:.9rem;line-height:1.6;color:var(--color-text);white-space:pre-wrap;overflow-wrap:anywhere;tab-size:2}.source-pre:focus-visible{box-shadow:none;outline:2px solid var(--color-accent-muted);outline-offset:-2px}.source-pre code{font-family:inherit}.selection-toolbar{position:fixed;z-index:250;display:flex;gap:2px;padding:3px;transform:translate(-50%);background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-overlay)}.selection-toolbar-btn{display:inline-flex;align-items:center;justify-content:center;width:1.85rem;height:1.85rem;border-radius:var(--radius-sm);color:var(--color-text-secondary);transition:background var(--transition-fast),color var(--transition-fast)}.selection-toolbar-btn:hover{background:var(--color-bg-hover);color:var(--color-accent)}.highlight-palette{display:flex;gap:3px;align-items:center;padding-left:4px;border-left:1px solid var(--color-border);margin-left:2px}.highlight-swatch{width:1.15rem;height:1.15rem;border-radius:4px;border:1px solid var(--color-border-strong);display:inline-flex;align-items:center;justify-content:center;color:var(--color-text-secondary)}.highlight-swatch:hover{border-color:var(--color-accent)}.cm-editor{height:100%;font-size:var(--font-size-editor)}.cm-editor.cm-focused{outline:none}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);color:var(--color-text-faint);padding:var(--space-6);text-align:center}.empty-state .shortcut-hints{display:grid;grid-template-columns:auto auto;gap:var(--space-2) var(--space-4);align-items:center;text-align:left;font-size:var(--font-size-sm)}.empty-state .empty-actions{display:flex;flex-direction:column;gap:var(--space-2);margin-top:var(--space-3);min-width:12rem}.empty-state .empty-actions .btn{justify-content:center}.right-sidebar{display:flex;flex-direction:column;width:var(--right-sidebar-width);flex-shrink:0;border-left:1px solid var(--color-border);background:var(--color-bg-sidebar);overflow:hidden}.right-tabs{display:flex;border-bottom:1px solid var(--color-border);padding:var(--space-1);gap:var(--space-1)}.right-tab{flex:1;display:flex;align-items:center;justify-content:center;padding:.35rem;border-radius:var(--radius-sm);color:var(--color-text-secondary)}.right-tab:hover{background:var(--color-bg-hover)}.right-tab[aria-selected=true]{background:var(--color-accent-subtle);color:var(--color-accent)}.right-body{flex:1;overflow-y:auto;padding:var(--space-3)}.backlink-card{display:block;width:100%;text-align:left;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3);margin-bottom:var(--space-2);background:var(--color-bg-raised);transition:border-color var(--transition-fast)}.backlink-card:hover{border-color:var(--color-accent-muted)}.backlink-card .backlink-title{font-weight:600;font-size:var(--font-size-sm);color:var(--color-text);margin-bottom:.15rem}.backlink-card .backlink-context{font-size:var(--font-size-xs);color:var(--color-text-secondary);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.props-table{width:100%;border-collapse:collapse;font-size:var(--font-size-sm)}.props-table th{text-align:left;font-weight:500;color:var(--color-text-faint);padding:.25rem .5rem .25rem 0;vertical-align:top;white-space:nowrap;width:35%}.props-table td{padding:.25rem 0;color:var(--color-text-secondary);word-break:break-word}.status-bar{display:flex;align-items:center;gap:var(--space-4);height:var(--statusbar-height);padding:0 var(--space-3);border-top:1px solid var(--color-border);background:var(--color-bg-sidebar);font-size:var(--font-size-xs);color:var(--color-text-faint);flex-shrink:0}.status-item{display:inline-flex;align-items:center;gap:.3rem;white-space:nowrap}.status-spacer{flex:1}.network-badge{display:inline-flex;align-items:center;gap:.3rem;border-radius:999px;padding:0 .5rem;border:1px solid var(--color-border)}.network-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--color-success)}.network-badge.offline .dot{background:var(--color-text-faint)}.network-badge.update .dot{background:var(--color-info)}.modal-backdrop{position:fixed;inset:0;background:#0000008c;display:flex;align-items:flex-start;justify-content:center;padding:10vh var(--space-4) var(--space-4);z-index:100}.modal{background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-overlay);width:100%;max-width:34rem;max-height:80vh;display:flex;flex-direction:column;overflow:hidden}.modal-lg{max-width:52rem}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);font-weight:650}.modal-body{padding:var(--space-4);overflow-y:auto}.modal-footer{display:flex;justify-content:flex-end;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-top:1px solid var(--color-border)}.form-row{margin-bottom:var(--space-4)}.form-row label{display:block;font-size:var(--font-size-sm);font-weight:600;margin-bottom:var(--space-1)}.form-row .hint{font-size:var(--font-size-xs);color:var(--color-text-faint);margin-top:var(--space-1)}.palette{background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-overlay);width:100%;max-width:38rem;overflow:hidden;display:flex;flex-direction:column;max-height:60vh}.palette-input{width:100%;padding:var(--space-3) var(--space-4);background:transparent;border:none;border-bottom:1px solid var(--color-border);color:var(--color-text);font-size:1rem}.palette-input:focus{outline:none}.palette-list{overflow-y:auto;padding:var(--space-2);margin:0;list-style:none}.palette-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);cursor:pointer;color:var(--color-text-secondary)}.palette-item[aria-selected=true]{background:var(--color-accent-subtle);color:var(--color-text)}.palette-item .palette-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.palette-item .palette-category{font-size:var(--font-size-xs);color:var(--color-text-faint)}.palette-empty{padding:var(--space-4);text-align:center;color:var(--color-text-faint)}.context-menu{position:fixed;z-index:200;min-width:11rem;background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-overlay);padding:var(--space-1)}.context-menu button{display:flex;align-items:center;gap:var(--space-2);width:100%;text-align:left;padding:.35rem var(--space-3);border-radius:var(--radius-sm);font-size:var(--font-size-ui);color:var(--color-text)}.context-menu button:hover,.context-menu button:focus-visible{background:var(--color-bg-hover)}.context-menu .menu-separator{height:1px;background:var(--color-border);margin:var(--space-1) 0}.context-menu button.danger{color:var(--color-error)}.toast-region{position:fixed;bottom:calc(var(--statusbar-height) + var(--space-3));right:var(--space-3);display:flex;flex-direction:column;gap:var(--space-2);z-index:300;max-width:22rem}.toast{background:var(--color-bg-raised);border:1px solid var(--color-border-strong);border-left:3px solid var(--color-info);border-radius:var(--radius-md);box-shadow:var(--shadow-overlay);padding:var(--space-2) var(--space-3);font-size:var(--font-size-sm);display:flex;gap:var(--space-2);align-items:flex-start}.toast.success{border-left-color:var(--color-success)}.toast.error{border-left-color:var(--color-error)}.toast.warning{border-left-color:var(--color-warning)}.toast .toast-body{flex:1}@media(max-width:900px){.toast-region{left:var(--space-3);right:var(--space-3);bottom:calc(var(--bottom-bar-h) + var(--space-2));max-width:none;align-items:stretch}.toast{width:100%}.color-picker-anchor{left:0;right:auto}.color-picker{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2);padding:var(--space-2);max-width:calc(100vw - 2 * var(--space-3))}.color-swatch{width:2.1rem;height:2.1rem}.setting-desc{display:none}.setting-row{padding:var(--space-2) 0}.settings-content{padding:var(--space-3)}}.search-result{display:block;width:100%;text-align:left;padding:var(--space-2);border-radius:var(--radius-md);margin-bottom:var(--space-1)}.search-result:hover{background:var(--color-bg-hover)}.search-result .result-title{font-weight:600;font-size:var(--font-size-sm)}.search-result .result-snippet{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin-top:.1rem;overflow-wrap:anywhere}.search-result .result-snippet mark{background:var(--color-mark-bg);color:var(--color-mark-text);border-radius:2px}.search-filters{display:flex;flex-wrap:wrap;gap:var(--space-1);padding:var(--space-2) 0}.tag-row{display:flex;align-items:center;justify-content:space-between;width:100%;padding:.28rem var(--space-2);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--font-size-ui)}.tag-row:hover{background:var(--color-bg-hover);color:var(--color-text)}.tag-count{font-size:var(--font-size-xs);color:var(--color-text-faint);background:var(--color-bg-raised);border-radius:999px;padding:0 .45rem}.calendar{user-select:none}.calendar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-2);font-weight:650;font-size:var(--font-size-sm)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:2px;text-align:center}.calendar-grid .dow{font-size:var(--font-size-xs);color:var(--color-text-faint);padding:.2rem 0}.calendar-day{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:var(--font-size-sm);color:var(--color-text-secondary);position:relative}.calendar-day:hover{background:var(--color-bg-hover)}.calendar-day.other-month{color:var(--color-text-faint);opacity:.5}.calendar-day.today{border:1px solid var(--color-accent-muted)}.calendar-day.selected{background:var(--color-accent-subtle);color:#fff;font-weight:650}.calendar-day.selected:hover{background:var(--color-accent-subtle)}.calendar-day.selected.has-note:after{background:#fff}.calendar-day.has-note:after{content:"";position:absolute;bottom:3px;width:4px;height:4px;border-radius:50%;background:var(--dot-color, var(--color-accent))}.calendar-panel-upcoming{margin-top:var(--space-3)}.daily-quicknav{display:flex;gap:var(--space-2);margin-top:var(--space-3)}.daily-quicknav-arrow{flex:none;padding-inline:var(--space-2)}.daily-quicknav-today{flex:1 1 auto;justify-content:center;gap:var(--space-1)}.welcome{height:100%;overflow-y:auto;display:flex;align-items:center;justify-content:center;padding:var(--space-6)}.welcome-card{width:100%;max-width:30rem}.welcome-logo{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);margin-bottom:var(--space-2)}.welcome-logo img{width:3.75rem;height:3.75rem;border-radius:var(--radius-lg)}.welcome-logo h1{font-size:1.9rem;font-weight:700;letter-spacing:-.02em}.welcome-tagline{color:var(--color-text-secondary);text-align:center;margin-bottom:var(--space-5)}.welcome-actions{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-4)}.welcome-action{display:flex;align-items:center;gap:var(--space-3);text-align:left;padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-raised);transition:border-color var(--transition-fast),background var(--transition-fast)}.welcome-action:hover:not(:disabled){border-color:var(--color-accent-muted);background:var(--color-bg-hover)}.welcome-action .action-icon{color:var(--color-accent);flex-shrink:0}.welcome-action .action-text{flex:1}.welcome-action .action-title{display:block;font-weight:650}.welcome-action .action-desc{display:block;font-size:var(--font-size-sm);color:var(--color-text-secondary)}.welcome-privacy{font-size:var(--font-size-sm);color:var(--color-text-faint);text-align:center}.recent-vaults{margin-top:var(--space-4);border-top:1px solid var(--color-border);padding-top:var(--space-3)}.settings-layout{display:flex;min-height:24rem;max-height:70vh}.settings-nav{width:12rem;flex-shrink:0;border-right:1px solid var(--color-border);padding:var(--space-2);overflow-y:auto}.settings-nav button{display:block;width:100%;text-align:left;padding:.4rem var(--space-3);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--font-size-ui)}.settings-nav button:hover{background:var(--color-bg-hover)}.settings-nav button[aria-current=true]{background:var(--color-accent-subtle);color:var(--color-accent)}.settings-content{flex:1;overflow-y:auto;padding:var(--space-4)}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:var(--space-3) 0;border-bottom:1px solid var(--color-border)}.setting-row:last-child{border-bottom:none}.setting-info{flex:1}.setting-name{font-weight:600;font-size:var(--font-size-ui)}.setting-desc{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.setting-control{flex-shrink:0;min-width:9rem;display:flex;justify-content:flex-end}.switch{position:relative;width:2.4rem;height:1.3rem;border-radius:999px;background:var(--color-bg-active);border:1px solid var(--color-border-strong);transition:background var(--transition-medium)}.switch[aria-checked=true]{background:var(--color-accent-strong);border-color:var(--color-accent-strong)}.switch .knob{position:absolute;top:1px;left:2px;width:1.05rem;height:1.05rem;border-radius:50%;background:var(--color-text);transition:transform var(--transition-medium)}.switch[aria-checked=true] .knob{transform:translate(1.05rem);background:var(--color-on-accent)}.graph-view{flex:1;position:relative;overflow:hidden}.graph-view canvas{display:block;width:100%;height:100%}.graph-toolbar{position:absolute;top:var(--space-3);left:var(--space-3);display:flex;flex-wrap:wrap;gap:var(--space-2);background:color-mix(in srgb,var(--color-bg-raised) 88%,transparent);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2);backdrop-filter:blur(6px);max-width:calc(100% - 2 * var(--space-3))}.graph-toolbar .input{width:10rem}.graph-stats{flex-basis:100%;padding-top:var(--space-1);border-top:1px solid var(--color-border)}.graph-hover-name{position:absolute;bottom:var(--space-3);left:var(--space-3);max-width:calc(100% - 2 * var(--space-3));padding:var(--space-1) var(--space-3);background:color-mix(in srgb,var(--color-bg-raised) 88%,transparent);border:1px solid var(--color-border);border-radius:var(--radius-md);backdrop-filter:blur(6px);color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;pointer-events:none}.drawer-backdrop{display:none}@media(max-width:900px){:root{--bottom-bar-h: calc(4.25rem + env(safe-area-inset-bottom)) }.sidebar,.right-sidebar{position:fixed;top:0;bottom:0;z-index:90;box-shadow:var(--shadow-overlay);transition:transform var(--transition-medium)}.sidebar .sidebar-header,.right-sidebar .right-tabs{padding-top:max(var(--space-2),env(safe-area-inset-top))}.sidebar-body,.right-body{padding-bottom:var(--bottom-bar-h)}.sidebar{left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.right-sidebar{right:0;transform:translate(100%)}.right-sidebar.open{transform:translate(0)}.drawer-backdrop{display:block;position:fixed;inset:0;z-index:80;background:#0006;border:none}.preview-pane,.source-view,.cm-scroller{padding-bottom:var(--bottom-bar-h)}.activity-rail-bottom{position:fixed;left:50%;transform:translate(-50%);bottom:calc(env(safe-area-inset-bottom) + var(--space-2));z-index:95;width:auto;max-width:calc(100vw - 2 * var(--space-3));height:3.5rem;flex-direction:row;align-items:stretch;gap:2px;padding:0 var(--space-1);background:color-mix(in srgb,var(--color-bg-rail) 62%,transparent);-webkit-backdrop-filter:blur(22px) saturate(180%);backdrop-filter:blur(22px) saturate(180%);border:1px solid color-mix(in srgb,var(--color-text) 12%,transparent);border-radius:999px;box-shadow:0 8px 30px #00000059,inset 0 1px #ffffff0f}.tab-btn{position:relative;width:3.25rem;flex:0 0 auto;display:flex;align-items:center;justify-content:center;padding:0;background:none;border:none;border-radius:999px;color:var(--color-text-secondary);cursor:pointer;transition:color var(--transition-fast)}.tab-btn.active{color:var(--color-accent)}.tab-btn:before{content:"";position:absolute;top:50%;left:50%;width:2.5rem;height:2.5rem;border-radius:999px;background:color-mix(in srgb,var(--color-accent) 18%,transparent);opacity:0;transform:translate(-50%,-50%) scale(.5);transition:opacity .16s ease,transform .24s cubic-bezier(.34,1.56,.64,1)}.tab-btn.active:before{opacity:1;transform:translate(-50%,-50%) scale(1)}.tab-btn svg{position:relative;transition:transform .2s cubic-bezier(.34,1.56,.64,1)}.tab-btn.active svg{transform:translateY(-1px) scale(1.05)}.activity-rail-bottom{animation:bar-in .26s cubic-bezier(.22,1,.36,1)}@keyframes bar-in{0%{opacity:0;transform:translate(-50%,16px)}}.more-sheet-backdrop{position:fixed;inset:0;z-index:96;background:#0006;border:none}.more-sheet{position:fixed;left:0;right:0;bottom:0;z-index:97;background:color-mix(in srgb,var(--color-bg-raised) 78%,transparent);-webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);border-top:1px solid color-mix(in srgb,var(--color-text) 12%,transparent);border-radius:var(--radius-lg) var(--radius-lg) 0 0;box-shadow:var(--shadow-overlay);padding:var(--space-2) var(--space-4) max(var(--space-4),env(safe-area-inset-bottom));animation:sheet-in .34s cubic-bezier(.32,.72,0,1)}.more-sheet-handle{width:2.25rem;height:4px;border-radius:999px;background:var(--color-border-strong);margin:0 auto var(--space-3)}.more-sheet-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2)}.more-item{display:flex;flex-direction:column;align-items:center;gap:var(--space-1);padding:var(--space-3) var(--space-1);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);color:var(--color-text);font-size:11px;text-align:center;cursor:pointer}.more-item svg{color:var(--color-accent)}.more-sheet-close{width:100%;justify-content:center;margin-top:var(--space-3)}.rail-btn,.icon-btn,.tree-item,.tab{min-height:2.5rem}.icon-btn{min-width:2.5rem}.math-menu{left:0;right:auto;max-width:calc(100vw - 2 * var(--space-3))}.tabs-bar{-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity;overflow-y:hidden;touch-action:pan-x;overscroll-behavior:contain}.tab{flex-shrink:0;scroll-snap-align:start}.preview-pane{padding:var(--space-4)}.settings-layout{flex-direction:column}.settings-nav{width:100%;display:flex;overflow-x:auto;border-right:none;border-bottom:1px solid var(--color-border)}.settings-nav button{width:auto;white-space:nowrap}}.activity-rail:not(.activity-rail-bottom){padding-top:max(var(--space-2),env(safe-area-inset-top));padding-bottom:max(var(--space-2),env(safe-area-inset-bottom))}@media(max-width:900px){html,body{position:fixed;width:100%;height:100%;overflow:hidden}.app-shell{position:fixed;left:0;right:0;top:var(--app-top, 0);height:var(--app-vh, 100%)}.cm-scroller,.preview-pane,.source-view,.sidebar-body,.right-body,.outline-body,.calendar-month-wrap{overscroll-behavior:contain;-webkit-overflow-scrolling:touch}.main-area{padding-top:env(safe-area-inset-top);overflow-x:hidden}.status-bar{display:none}.right-sidebar:not(.open){box-shadow:none}.editor-area.split .preview-pane{display:none}.editor-area.split .editor-pane{border-right:none}.pdf-split{flex-direction:column}.pdf-split-note{display:none}.preview-content pre,.preview-content table,.preview-content .katex-display{max-width:100%;overflow-x:auto}}@media(max-width:900px){html,body,#root{max-width:100vw;overflow-x:hidden}}@media(pointer:coarse){.rail-btn,.icon-btn,.tree-item,.tab,.btn,.toolbar-btn{min-height:2.75rem}*{-webkit-tap-highlight-color:transparent}html{-webkit-text-size-adjust:100%}}.btn-small{padding:3px 8px;font-size:var(--font-size-sm)}.study-panel .sidebar-section-label{display:flex;align-items:center;gap:var(--space-1);margin-top:var(--space-4)}.study-actions{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-2)}.study-actions .btn{justify-content:center;gap:var(--space-2)}.study-badge{min-width:1.2rem;padding:0 6px;border-radius:999px;background:var(--color-bg);color:var(--color-text);font-size:11px;line-height:1.2rem}.study-hint{padding:0 var(--space-2)}.study-exam{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);width:100%;padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md);background:none;cursor:pointer;margin-bottom:var(--space-2);text-align:left}.study-exam:hover{background:var(--color-bg-hover)}.study-exam-main{display:flex;flex-direction:column;min-width:0}.study-exam-title{color:var(--color-text);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.study-exam-sub{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.study-days{flex:none;padding:2px 8px;border-radius:999px;background:var(--color-bg-hover);color:var(--color-text-secondary);font-size:11px;font-weight:600;white-space:nowrap}.study-days.soon{background:color-mix(in srgb,#f5a623 25%,transparent);color:#f5a623}.study-days.past{opacity:.6}.study-link{display:flex;align-items:center;gap:var(--space-2);width:100%;padding:5px var(--space-2);border:none;border-radius:var(--radius-sm);background:none;color:var(--color-text-secondary);cursor:pointer;text-align:left;overflow:hidden}.study-link:hover{background:var(--color-bg-hover);color:var(--color-text)}.study-link svg{flex:none}.flashcard-overlay{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;background:var(--color-bg)}.flashcard-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border)}.flashcard-title{display:flex;align-items:center;gap:var(--space-2);font-weight:600}.flashcard-controls{display:flex;align-items:center;gap:var(--space-2)}.flashcard-progress{height:3px;background:var(--color-bg-hover)}.flashcard-progress-bar{height:100%;background:var(--color-accent);transition:width .2s ease}.flashcard-stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-4);padding:var(--space-6);overflow-y:auto}.flashcard-count{text-align:center}.flashcard-card{width:min(680px,92vw);min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-4);padding:var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-sidebar);box-shadow:var(--shadow-overlay);cursor:pointer;text-align:center}.flashcard-face{white-space:pre-wrap;max-width:100%}.flashcard-front{font-size:1.5rem;font-weight:600;color:var(--color-text)}.flashcard-back{font-size:1.15rem;color:var(--color-text);padding-top:var(--space-4);border-top:1px solid var(--color-border);width:100%}.flashcard-hint{margin-top:var(--space-2)}.flashcard-rate{display:flex;gap:var(--space-3);flex-wrap:wrap;justify-content:center}.flashcard-rate .btn{min-width:96px;justify-content:center;gap:var(--space-2)}.flashcard-again{border-color:color-mix(in srgb,#e5484d 50%,var(--color-border));color:#e5484d}.flashcard-good{border-color:color-mix(in srgb,var(--color-accent) 50%,var(--color-border))}.flashcard-easy{border-color:color-mix(in srgb,#30a46c 50%,var(--color-border));color:#30a46c}.flashcard-empty{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);text-align:center}.flashcard-done{font-size:1.4rem;font-weight:600}.app-shell.study-mode .activity-rail,.app-shell.study-mode .sidebar,.app-shell.study-mode .right-sidebar,.app-shell.study-mode .tabs-bar{display:none}.app-shell.study-mode .cm-content,.app-shell.study-mode .preview-pane{font-size:1.08em;line-height:1.75}.app-shell.study-mode .cm-content,.app-shell.study-mode .preview-pane>*{max-width:780px;margin-inline:auto}.app-shell.study-mode .cm-scroller{padding-inline:var(--space-6)}.study-exit{position:fixed;top:var(--space-3);right:var(--space-3);z-index:55;display:flex;align-items:center;gap:var(--space-2);box-shadow:var(--shadow-overlay)}.flashcard-embed{perspective:1200px;width:min(460px,100%);height:220px;margin:1em 0;cursor:pointer;position:relative}.flashcard-embed:focus-visible{outline:2px solid var(--color-accent);outline-offset:4px;border-radius:var(--radius-lg)}.flashcard-embed-inner{position:relative;width:100%;height:100%;transition:transform .5s cubic-bezier(.4,.2,.2,1);transform-style:preserve-3d}.flashcard-embed.flipped .flashcard-embed-inner{transform:rotateY(180deg)}.flashcard-embed-face{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-sidebar);box-shadow:var(--shadow-sm);backface-visibility:hidden;-webkit-backface-visibility:hidden;text-align:center;font-size:1.15rem;white-space:pre-wrap;overflow:auto}.flashcard-embed-front{font-weight:600}.flashcard-embed-front:before{content:"Q";position:absolute;top:var(--space-2);left:var(--space-3);font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--color-text-faint)}.flashcard-embed-back{transform:rotateY(180deg);background:var(--color-accent-subtle);border-color:var(--color-accent-muted)}.flashcard-embed-back:before{content:"A";position:absolute;top:var(--space-2);left:var(--space-3);font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--color-accent)}.flashcard-embed-topic{position:absolute;top:var(--space-2);right:var(--space-3);z-index:2;padding:1px 8px;border-radius:999px;background:var(--color-bg-hover);color:var(--color-text-secondary);font-size:11px;font-weight:600;pointer-events:none}.flashcard-embed-hint{position:absolute;bottom:var(--space-2);right:var(--space-3);z-index:2;font-size:11px;color:var(--color-text-faint);pointer-events:none}.flashcard-embed-text{max-width:100%;white-space:pre-wrap}@media(prefers-reduced-motion:reduce){.flashcard-embed-inner{transition:none}}.flashcard-topic-select{padding:3px 8px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);font-size:var(--font-size-sm)}.flashcard-topic-badge{margin-left:var(--space-2);padding:1px 8px;border-radius:999px;background:var(--color-accent-subtle);color:var(--color-accent);font-size:11px;font-weight:600}.pdf-inline{margin:1em 0;max-width:600px;overflow:hidden}.markdown-body td .pdf-inline,.markdown-body th .pdf-inline,.md-column .pdf-inline{max-width:300px}.pdf-viewer-inline{flex:none;max-height:90vh;width:100%;max-width:600px;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden}.pdf-viewer-inline .pdf-pages{padding:var(--space-2);gap:var(--space-2);overflow:auto}.pdf-inline-loading{padding:var(--space-5);color:var(--color-text-secondary);text-align:center}.md-columns{display:flex;gap:var(--space-4);align-items:flex-start;margin:1em 0}.md-column{flex:1 1 0;min-width:0}.md-column>:first-child{margin-top:0}.md-column>:last-child{margin-bottom:0}@media(max-width:700px){.md-columns{flex-direction:column}}.attachment-row .attachment-name,.attachment-row .attachment-path,.study-link-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.study-link{white-space:nowrap}.tooltip{position:fixed;z-index:300;padding:3px 8px;max-width:260px;background:var(--color-bg-raised);color:var(--color-text);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);box-shadow:var(--shadow-overlay);font-size:var(--font-size-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;pointer-events:none;animation:tooltip-in .09s ease-out}.tooltip-top{transform:translate(-50%,-100%)}.tooltip-bottom{transform:translate(-50%)}.tooltip-right{transform:translateY(-50%)}@keyframes tooltip-in{0%{opacity:0}to{opacity:1}}@media(prefers-reduced-motion:reduce){.tooltip{animation:none}}.task-count{opacity:.6;font-variant-numeric:tabular-nums}.task-list{list-style:none;margin:var(--space-2) 0 0;padding:0}.task-row{display:flex;align-items:flex-start;gap:var(--space-2);padding:var(--space-1) var(--space-1);border-radius:var(--radius-sm)}.task-row:hover{background:var(--color-bg-hover)}.task-check{margin-top:3px;accent-color:var(--color-accent-strong);cursor:pointer;flex:none}.task-main{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1;background:none;border:none;text-align:left;cursor:pointer;color:var(--color-text)}.task-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.task-row.done .task-text{text-decoration:line-through;color:var(--color-text-faint)}.task-meta{display:flex;flex-wrap:wrap;gap:4px}.task-badge{display:inline-flex;align-items:center;gap:3px;padding:0 6px;border-radius:999px;background:var(--color-bg-hover);color:var(--color-text-secondary);font-size:11px;line-height:1.5}.task-badge svg{flex:none}.task-badge.subtle{background:none;color:var(--color-text-faint)}.task-badge.overdue{background:color-mix(in srgb,#e5484d 22%,transparent);color:#e5484d}.task-badge.prio-high{background:color-mix(in srgb,#e5484d 18%,transparent);color:#e5484d}.task-badge.prio-medium{background:color-mix(in srgb,#f5a623 20%,transparent);color:#f5a623}.calendar-view{flex:1;display:flex;flex-direction:column;min-height:0;background:var(--color-bg)}.calendar-view-toolbar{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border);background:var(--color-bg-sidebar);flex-shrink:0}.calendar-view-title{font-weight:650;min-width:10rem;text-align:center}.calendar-month{flex:1;display:flex;flex-direction:column;min-height:0;padding:var(--space-3)}.calendar-month-dow{display:grid;grid-template-columns:repeat(7,1fr);gap:var(--space-1);padding-bottom:var(--space-1)}.calendar-month-dow span{font-size:var(--font-size-xs);font-weight:650;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-faint);text-align:center}.calendar-month-grid{flex:1;display:grid;grid-template-columns:repeat(7,1fr);grid-auto-rows:1fr;gap:var(--space-1);min-height:0}.calendar-cell{display:flex;flex-direction:column;gap:2px;padding:3px;border:1px solid var(--color-border);border-radius:var(--radius-sm);overflow:hidden;min-height:0}.calendar-cell.other-month{opacity:.45}.calendar-cell.today{border-color:var(--color-accent);background:var(--color-accent-subtle)}.calendar-cell-top{display:flex;align-items:center;justify-content:space-between;gap:2px}.calendar-cell-icons{display:flex;align-items:center;gap:1px;flex-wrap:wrap;min-width:0}.calendar-cell-num{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.calendar-cell-events{display:flex;flex-direction:column;gap:2px;overflow-y:auto;min-height:0}.calendar-event{display:flex;align-items:center;gap:4px;padding:1px 4px;border:none;border-left:3px solid var(--color-accent);border-radius:3px;background:var(--color-bg-hover);color:var(--color-text);font-size:11px;cursor:pointer;text-align:left}.calendar-event.is-task{font-style:italic}.calendar-event:hover{background:var(--color-bg-active)}.calendar-event-dot{width:6px;height:6px;border-radius:50%;flex:none}.calendar-event-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.calendar-agenda{flex:1;overflow-y:auto;padding:var(--space-4);max-width:760px;width:100%;margin:0 auto}.calendar-agenda-day{margin-bottom:var(--space-4)}.calendar-agenda-date{display:flex;align-items:center;gap:var(--space-2);font-weight:650;padding-bottom:var(--space-1);border-bottom:1px solid var(--color-border);margin-bottom:var(--space-2)}.calendar-agenda-today{padding:0 8px;border-radius:999px;background:var(--color-accent-subtle);color:var(--color-accent);font-size:11px}.calendar-agenda-event{display:flex;align-items:center;gap:var(--space-2);width:100%;padding:var(--space-2);border:none;border-radius:var(--radius-sm);background:none;color:var(--color-text);cursor:pointer;text-align:left}.calendar-agenda-event:hover{background:var(--color-bg-hover)}.calendar-agenda-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.planner-tabs{display:flex;gap:var(--space-1);padding:var(--space-2) var(--space-2) 0}.planner-tabs .mode-chip{flex:1;text-align:center}.calendar-month-wrap{flex:1;display:flex;min-height:0}.calendar-month-wrap .calendar-month{flex:1}.calendar-cell{align-items:stretch;text-align:left;background:none;color:inherit;cursor:pointer;font:inherit}.calendar-cell:hover{background:var(--color-bg-hover)}.calendar-cell.selected{border-color:var(--color-accent);box-shadow:inset 0 0 0 1px var(--color-accent)}.calendar-event{width:100%}.calendar-more{font-size:10px;color:var(--color-text-faint);padding-left:2px}.calendar-summary{width:280px;flex-shrink:0;border-left:1px solid var(--color-border);background:var(--color-bg-sidebar);overflow-y:auto;padding:var(--space-3)}.calendar-summary-head{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);font-weight:650;margin-bottom:var(--space-2)}.calendar-summary section{margin-bottom:var(--space-3)}.calendar-summary-sheet{position:fixed;left:0;right:0;bottom:0;z-index:97;width:auto;max-height:72vh;overflow-y:auto;border-radius:var(--radius-lg) var(--radius-lg) 0 0;border:1px solid color-mix(in srgb,var(--color-text) 12%,transparent);border-bottom:none;background:color-mix(in srgb,var(--color-bg-raised) 82%,transparent);-webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);box-shadow:var(--shadow-overlay);padding:var(--space-2) var(--space-4) max(var(--space-4),env(safe-area-inset-bottom));animation:sheet-in .34s cubic-bezier(.32,.72,0,1)}@media(max-width:900px){.calendar-month-wrap{padding-bottom:var(--bottom-bar-h)}}.rail-group-item{position:relative;animation:rail-item-in .16s ease both;border-top-left-radius:0;border-bottom-left-radius:0}.rail-group-item:before{content:"";position:absolute;left:-4px;top:-3px;bottom:-3px;width:2px;background:var(--color-accent)}@keyframes rail-item-in{0%{opacity:0;transform:translateY(-8px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}@media(prefers-reduced-motion:reduce){.rail-group-item{animation:none}}.quicknotes{margin-top:var(--space-4)}.quicknotes-input{display:flex;align-items:center;gap:var(--space-1);padding:3px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);transition:border-color var(--transition-fast)}.quicknotes-input:focus-within{border-color:var(--color-accent-muted)}.quicknotes-input .input{flex:1;min-width:0;border:none;background:none;padding:3px 6px}.quicknotes-input .input:focus{outline:none;box-shadow:none}.quicknotes-input .icon-btn{flex:none}.quicknotes-list{list-style:none;margin:var(--space-2) 0 0;padding:0;display:flex;flex-direction:column;gap:2px}.quicknote{display:flex;align-items:center;gap:var(--space-2);padding:5px var(--space-1) 5px var(--space-2);border-radius:var(--radius-sm);position:relative}.quicknote:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--color-accent-muted);flex:none}.quicknote:hover{background:var(--color-bg-hover)}.quicknote-text{flex:1;min-width:0;font-size:var(--font-size-sm);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.quicknote-action{opacity:0;width:1.5rem;height:1.5rem;flex:none}.quicknote:hover .quicknote-action,.quicknote:focus-within .quicknote-action{opacity:1}.task-due-input{flex:none;width:1.7rem;opacity:0;border:none;background:none;color:var(--color-text-secondary);font-size:11px;cursor:pointer;padding:0}.task-row:hover .task-due-input,.task-due-input:focus,.task-due-input[value]:not([value=""]){opacity:.85}.task-due-input::-webkit-calendar-picker-indicator{cursor:pointer;filter:invert(.6)}.tree-item .tree-lock{flex-shrink:0;color:var(--color-text-faint)}.youtube-embed{margin:1em 0;max-width:720px}.youtube-embed iframe{display:block;width:100%;aspect-ratio:16 / 9;border:1px solid var(--color-border);border-radius:var(--radius-md);background:#000}.youtube-embed figcaption{margin-top:var(--space-1);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.tree-item.multi-selected{background:var(--color-accent-subtle);box-shadow:inset 2px 0 0 var(--color-accent)}.file-tree-root{min-height:4rem}.file-tree-root.root-drop{border:1px dashed var(--color-accent-muted);border-radius:var(--radius-sm);background:var(--color-accent-subtle)}.move-picker-list{max-height:20rem;overflow-y:auto}.tree-item{position:relative}.tree-item.drop-before:before,.tree-item.drop-after:after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--color-accent);border-radius:1px;pointer-events:none}.tree-item.drop-before:before{top:-1px}.tree-item.drop-after:after{bottom:-1px}.calendar-panel-daybar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);margin-top:var(--space-3);padding:0 var(--space-2)}.cal-hero{display:flex;align-items:center;gap:var(--space-3);width:100%;text-align:left;padding:var(--space-3);margin-bottom:var(--space-3);border:1px solid color-mix(in srgb,var(--color-accent) 30%,transparent);border-radius:var(--radius-lg);background:linear-gradient(135deg,color-mix(in srgb,var(--color-accent) 16%,transparent),color-mix(in srgb,var(--color-accent) 5%,transparent));color:var(--color-text);cursor:pointer}.cal-hero-num{font-size:2rem;font-weight:700;line-height:1;color:var(--color-accent);min-width:2.2rem;text-align:center}.cal-hero-meta{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}.cal-hero-dow{font-weight:650}.cal-hero-sub{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.cal-hero-icon{color:var(--color-accent);flex-shrink:0}@media(max-width:900px){.sidebar .study-link{padding:var(--space-2) var(--space-3);margin-bottom:var(--space-1);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-raised)}}@media(max-width:900px){:root{--ease-ios: cubic-bezier(.32, .72, 0, 1)}.sidebar,.right-sidebar,.outline-drawer{transition:transform .4s var(--ease-ios)}.drawer-backdrop,.outline-backdrop,.more-sheet-backdrop{animation:backdrop-in .26s ease both}@keyframes backdrop-in{0%{opacity:0}}.sheet-grabber,.more-sheet-grabber{display:flex;justify-content:center;align-items:center;padding:8px 0 10px;margin:0 auto;width:100%;touch-action:none;cursor:grab;flex:0 0 auto}.sheet-grabber:active,.more-sheet-grabber:active{cursor:grabbing}.sheet-grabber .more-sheet-handle,.more-sheet-grabber .more-sheet-handle{margin:0}button,a,.tab-btn,.more-item,.tree-item,.slash-item,.outline-label,.outline-caret,.view-switcher-btn,.right-tab,.cal-day,.btn,.icon-btn{-webkit-tap-highlight-color:transparent}.btn,.icon-btn,.more-item,.tab-btn,.right-tab,.view-switcher-btn,.cal-day{transition:transform .15s var(--ease-ios)}.btn:active,.icon-btn:active,.more-item:active,.tab-btn:active,.right-tab:active,.view-switcher-btn:active,.cal-day:active{transform:scale(.92)}.tree-item:active,.slash-item:active,.outline-label:active,.outline-item:active,.sidebar .study-link:active{background-color:var(--color-bg-active)}.switch{width:3.1rem;height:1.85rem;border:none;background:color-mix(in srgb,var(--color-text) 20%,transparent);transition:background .28s var(--ease-ios)}.switch[aria-checked=true]{background:var(--color-accent-strong)}.switch .knob{top:2px;left:2px;width:1.55rem;height:1.55rem;background:#fff;box-shadow:0 2px 5px #00000047,0 0 0 .5px #0000000f;transition:transform .28s var(--ease-ios)}.switch[aria-checked=true] .knob{transform:translate(1.25rem);background:#fff}.view-switcher{background:color-mix(in srgb,var(--color-text) 8%,transparent);border:none;border-radius:9px;padding:2px;gap:0}.view-switcher-btn{border-radius:7px;padding:.35rem .75rem}.view-switcher-btn.active{background:var(--color-bg-raised);color:var(--color-text);box-shadow:0 1px 3px #0000002e,0 0 0 .5px #0000000a}.settings-content{padding:var(--space-3) var(--space-4)}.setting-row{padding:var(--space-3) 0;gap:var(--space-3)}.setting-control{min-width:auto}.search-panel{padding:var(--space-3) var(--space-3) var(--bottom-bar-h)}.search-panel .input{border-radius:10px;padding:.6rem .75rem}.search-panel .search-result{padding-right:var(--space-3)}.flashcard-header{padding:var(--space-3);gap:var(--space-2)}.flashcard-title{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.flashcard-controls{gap:var(--space-1);flex-shrink:0}.flashcard-overlay{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}}.markdown-body{font-size:var(--font-size-editor);line-height:1.68;color:var(--color-text);word-wrap:break-word}.markdown-body>*+*{margin-top:.85em}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4,.markdown-body h5,.markdown-body h6{font-weight:650;line-height:1.3;margin-top:1.5em;scroll-margin-top:1rem}.markdown-body h1{font-size:1.7em;padding-bottom:.25em;border-bottom:1px solid var(--color-border)}.markdown-body h2{font-size:1.4em}.markdown-body h3{font-size:1.2em}.markdown-body h4{font-size:1.05em}.markdown-body h5,.markdown-body h6{font-size:1em;color:var(--color-text-secondary)}.markdown-body ul,.markdown-body ol{padding-left:1.6em}.markdown-body li+li{margin-top:.2em}.markdown-body li.task-list-item{list-style:none;margin-left:-1.3em}.markdown-body li.task-list-item input[type=checkbox]{margin-right:.45em;accent-color:var(--color-accent-strong);cursor:pointer}.markdown-body blockquote{border-left:3px solid var(--color-accent-muted);padding:.1em 0 .1em 1em;color:var(--color-text-secondary)}.markdown-body code{font-family:var(--font-mono);font-size:.9em;background:var(--color-bg-raised);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.1em .35em}.markdown-body pre{background:var(--color-bg-raised);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);overflow-x:auto}.markdown-body pre code{background:none;border:none;padding:0;font-size:.88em}.markdown-body table{border-collapse:collapse;display:block;max-width:100%;overflow-x:auto}.markdown-body th,.markdown-body td{border:1px solid var(--color-border);padding:.35rem .7rem;text-align:left}.markdown-body th{background:var(--color-bg-raised);font-weight:600}.markdown-body hr{border:none;border-top:1px solid var(--color-border);margin:1.5em 0}.markdown-body img{max-width:100%;border-radius:var(--radius-md)}.markdown-body mark{background:var(--color-mark-bg);color:var(--color-mark-text);border-radius:3px;padding:0 .15em}.markdown-body mark.mark-yellow,mark.mark-yellow{background:var(--hl-yellow);color:inherit}.markdown-body mark.mark-green,mark.mark-green{background:var(--hl-green);color:inherit}.markdown-body mark.mark-blue,mark.mark-blue{background:var(--hl-blue);color:inherit}.markdown-body mark.mark-purple,mark.mark-purple{background:var(--hl-purple);color:inherit}.markdown-body mark.mark-red,mark.mark-red{background:var(--hl-red);color:inherit}.markdown-body mark.mark-orange,mark.mark-orange{background:var(--hl-orange);color:inherit}.markdown-body mark.mark-grey,mark.mark-grey{background:var(--hl-grey);color:inherit}.markdown-body .wiki-link{color:var(--color-accent);border-bottom:1px dotted color-mix(in srgb,var(--color-accent) 50%,transparent)}.markdown-body .wiki-link:hover{text-decoration:none;border-bottom-style:solid}.markdown-body .wiki-link-broken{color:var(--color-text-faint);border-bottom-color:var(--color-text-faint)}.markdown-body .tag{display:inline-block;font-size:.85em;background:var(--color-accent-subtle);color:var(--color-accent);border-radius:999px;padding:0 .55em;text-decoration:none}.markdown-body .tag:hover{background:color-mix(in srgb,var(--color-accent) 22%,transparent);text-decoration:none}.markdown-body .citation{font-family:var(--font-mono);font-size:.85em;color:var(--color-accent-muted);background:var(--color-bg-raised);border-radius:var(--radius-sm);padding:.05em .3em}.markdown-body .embed{display:inline-block;font-size:.85em;color:var(--color-text-secondary);border:1px dashed var(--color-border-strong);border-radius:var(--radius-sm);padding:0 .4em}.markdown-body .embed-image{display:block;max-width:100%;border-radius:var(--radius-md);margin:.5em 0}.markdown-body .footnotes{margin-top:2em;padding-top:1em;border-top:1px solid var(--color-border);font-size:.9em;color:var(--color-text-secondary)}.callout{border:1px solid var(--color-border);border-left:3px solid var(--callout-color, var(--color-info));border-radius:var(--radius-md);background:color-mix(in srgb,var(--callout-color, var(--color-info)) 6%,transparent);padding:var(--space-3) var(--space-4)}.callout>*+*{margin-top:.5em}.callout-title{font-weight:650;color:var(--callout-color, var(--color-info))}.callout-note,.callout-info,.callout-abstract{--callout-color: var(--color-info)}.callout-tip,.callout-success{--callout-color: var(--color-success)}.callout-warning,.callout-question,.callout-todo{--callout-color: var(--color-warning)}.callout-danger,.callout-error{--callout-color: var(--color-error)}.callout-quote,.callout-example{--callout-color: var(--color-text-secondary)}.callout-theorem,.callout-lemma{--callout-color: var(--color-accent-muted)}.callout-definition{--callout-color: var(--color-info)}.callout-proof,.callout-toggle{--callout-color: var(--color-text-secondary)}details.callout>summary.callout-title{cursor:pointer;list-style:none}details.callout>summary.callout-title:before{content:"▸";display:inline-block;margin-right:.4em;transition:transform var(--transition-fast)}details.callout[open]>summary.callout-title:before{transform:rotate(90deg)}details.callout>summary.callout-title::-webkit-details-marker{display:none}.markdown-body{counter-reset:neoma-equation}.markdown-body .katex-display{position:relative}.markdown-body .katex-display:after{counter-increment:neoma-equation;content:"(" counter(neoma-equation) ")";position:absolute;right:0;top:50%;transform:translateY(-50%);color:var(--color-text-faint);font-size:.85em}.markdown-body .katex-display{overflow-x:auto;overflow-y:hidden;padding:.25em 0}@media print{body *{visibility:hidden}.print-area,.print-area *{visibility:visible}.print-area{position:absolute;inset:0;overflow:visible;padding:0!important}.markdown-body a{color:inherit}}.markdown-body li.task-list-item.is-task{padding:2px 8px 2px 6px;border-left:2px solid var(--color-accent-muted);border-radius:var(--radius-sm);background:var(--color-bg-secondary, rgba(127, 127, 127, .06))}.markdown-body li.task-list-item.is-task input[type=checkbox]{accent-color:var(--color-accent)}.markdown-body li.task-list-item:has(input[type=checkbox]:checked){color:var(--color-text-faint);text-decoration:line-through}.markdown-body li.task-list-item.is-task:has(input[type=checkbox]:checked){opacity:.7}.markdown-body .cal-ref{display:inline-flex;align-items:center;gap:.3em;padding:.02em .5em;border-radius:999px;border-bottom:none;font-size:.9em;background:var(--color-accent-subtle);color:var(--color-accent);text-decoration:none}.markdown-body .cal-ref:before{font-size:.9em;line-height:1}.markdown-body .cal-ref-date:before{content:"📅"}.markdown-body .cal-ref-event:before{content:"📌"}.markdown-body .cal-ref-exam{background:color-mix(in srgb,#e5484d 16%,transparent);color:#e5484d}.markdown-body .cal-ref-exam:before{content:"🎓"}.markdown-body .cal-ref:hover{filter:brightness(1.1)}