@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Naskh+Arabic:wght@400;500;600&family=Noto+Serif+Hebrew:wght@400;500;600&display=swap');
:root{color-scheme:dark;--bg:#101b21;--panel:#142129;--surface:#1b2b33;--line:#2b3d45;--text:#e8ede7;--muted:#a4b4b8;--accent:#d6b67b;--teal:#8abdaf;--serif:Georgia,'Times New Roman',serif;--native:'Noto Serif Hebrew','Noto Naskh Arabic',serif;font-family:'DM Sans',system-ui,sans-serif;font-size:16px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit;background:none;border:0}button:disabled{cursor:wait;opacity:.5}a{color:var(--teal)}button,a,input,textarea,select{outline-offset:5px}button:focus-visible,a:focus-visible{outline:2px solid var(--accent)}[hidden]{display:none!important}button:hover,a:hover{color:#fff}button{min-height:40px}p{line-height:1.65}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:400}h1{font-family:var(--serif);font-size:clamp(2rem,3.6vw,3.2rem);margin:0;letter-spacing:-.035em}h1 span{color:var(--accent)}h2{font-size:1rem}h3{font-size:1rem;font-weight:600}.masthead{min-height:84px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:14px 3%;gap:20px}.brand{display:flex;gap:14px;align-items:center;text-decoration:none;color:var(--text);font-size:.875rem;letter-spacing:.12em}.brand b{font-weight:400;color:var(--accent)}.brand-mark{font-size:2rem;font-family:var(--native);color:var(--accent);width:44px;height:44px;border:1px solid #827351;border-radius:50%;display:grid;place-items:center;line-height:1}.language-switch{display:flex;border:1px solid var(--line);padding:4px;border-radius:8px;gap:4px}.language-switch button{padding:7px 18px;color:var(--muted);font-size:.875rem;border-radius:5px}.language-switch button span{margin-right:7px;font-size:1.1rem;font-family:var(--native)}.language-switch button[aria-pressed=true]{background:#30433f;color:#e7efdf}.quiet{font-size:.875rem;color:var(--muted);text-decoration:none;padding:8px 3px}.masthead>.quiet{min-width:135px}main{padding:0 3%}.page-heading{padding:32px 0 27px;display:flex;align-items:center;justify-content:space-between;gap:20px}.eyebrow{color:var(--muted);font-size:.75rem;letter-spacing:.14em;font-weight:500;line-height:1.6;margin-bottom:12px}.intro{color:var(--muted);font-size:.875rem;margin:0;line-height:1.6}.workspace{border:1px solid var(--line);border-radius:12px;display:grid;grid-template-columns:184px minmax(0,1fr) 330px;overflow:hidden;min-height:710px}.alphabet-panel{padding:22px 18px;background:#121f25;border-right:1px solid var(--line);display:flex;flex-direction:column}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.section-heading h2{margin:0;font-size:.875rem;font-weight:500}.section-heading>span{font-size:.75rem;color:var(--muted);border:1px solid var(--line);padding:3px 6px;border-radius:4px}.alphabet-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;direction:rtl}.letter-button{height:47px;position:relative;display:grid;place-items:center;font-family:var(--native);font-size:1.65rem;border:1px solid transparent;border-radius:7px;color:#b2c1c4;line-height:1.1}.letter-button.has-roots::after{content:'';height:3px;width:3px;border-radius:50%;background:#6e8e91;position:absolute;bottom:5px}.letter-button:hover{background:var(--surface);border-color:var(--line)}.letter-button[aria-pressed=true]{color:var(--accent);background:#292f2b;border-color:#a18a60}.alphabet-note{margin-top:auto;padding-top:24px}.alphabet-note p{font-size:.8125rem;color:var(--muted);line-height:1.65;margin:12px 0 20px}.small-rule{display:block;width:24px;height:1px;background:var(--accent)}.outline{border:1px solid #40515a;padding:8px 12px;border-radius:6px;font-size:.875rem;background:#15232b}.outline:hover{border-color:var(--accent);background:#253431}.wide{width:100%}.tree-panel{position:relative;min-width:0;background:radial-gradient(ellipse at 50% 28%,#1d3336 0%,#132229 49%,#111e25 100%);display:flex;flex-direction:column}.tree-header{display:flex;align-items:center;justify-content:space-between;padding:22px 23px 0;gap:12px;z-index:1}.tree-header .eyebrow{font-size:.6875rem;margin:0;letter-spacing:.14em}.tree-header p{font-size:.875rem;color:#c8d3ce;margin:4px 0 0}.tree-container{flex:1;position:relative;overflow:auto;min-height:570px;scrollbar-width:thin;scrollbar-color:#496164 transparent}.tree-container svg{display:block;min-width:100%;width:100%;height:100%;min-height:590px}.tree-container svg .node{cursor:pointer;outline:none}.tree-container svg .node:focus-visible .node-bg{stroke:#fff;stroke-width:3}.tree-container svg .node:hover .node-bg{stroke:var(--accent);filter:brightness(1.15)}.tree-container svg text{font-family:'DM Sans',system-ui,sans-serif;pointer-events:none;text-anchor:middle;fill:var(--text)}.tree-container svg text.native{font-family:var(--native);font-size:27px}.tree-container svg text.label{font-size:20px;fill:#b5c5c8}.tree-container svg text.root-label{font-size:20px;fill:#d7e0d8}.tree-container svg text.level-label{font-size:12px;fill:#a0b3b5;letter-spacing:2px}.tree-container svg text.center-letter{font-size:68px;fill:var(--accent)}.tree-container svg .branch{fill:none;stroke:#5e817e;stroke-width:1.3;opacity:.65}.tree-container svg .branch.active{stroke:var(--accent);opacity:.9;stroke-width:1.7}.tree-container svg .basin-link{fill:none;stroke:#9da58f;stroke-width:1;stroke-dasharray:3 6;opacity:.7}.tree-container svg .node-enter{animation:appear .45s ease both}.tree-container svg .root-halo{fill:none;stroke:#d6b67b;opacity:.15;stroke-width:1}.tree-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #25373e;padding:11px 19px;gap:10px;min-height:55px}.legend{color:var(--muted);font-size:.75rem;display:flex;align-items:center;gap:7px;flex-wrap:wrap}.line-solid,.line-dotted{display:inline-block;width:18px;border-top:1px solid var(--teal);height:1px}.line-dotted{border-top-style:dashed;margin-left:6px}.zoom{display:flex;align-items:center;gap:3px;flex-shrink:0}.zoom button{font-size:1.25rem;width:32px;min-height:30px}.zoom span{font-size:.75rem;min-width:38px;text-align:center;color:var(--muted)}.detail-panel{background:#192831;border-left:1px solid var(--line)}.detail-scroll{padding:24px 23px;max-height:790px;overflow-y:auto;scrollbar-width:thin}.detail-top{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:14px;gap:15px}.detail-glyph{font-family:var(--native);font-size:4.3rem;line-height:1.2;color:var(--accent);padding:10px 0 0}.detail-top .eyebrow{margin-bottom:8px;font-size:.6875rem}.detail-name{font-family:var(--serif);font-size:1.8rem;margin:7px 0 4px}.translit{font-size:.875rem;color:var(--muted)}.tag{font-size:.6875rem;letter-spacing:.08em;color:var(--teal);display:inline-block;border:1px solid #3b5855;padding:5px 7px;border-radius:4px;margin:7px 0 15px}.detail-copy{font-size:.9375rem;color:#c4d0d1;line-height:1.65;margin:0 0 20px}.associations{display:flex;gap:7px;flex-wrap:wrap;margin:0 0 22px}.associations span{border-bottom:1px solid #786e55;color:#dec799;font-size:.875rem;padding-bottom:4px}.detail-subtitle{font-size:.75rem;color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin:22px 0 12px}.root-list{display:grid;gap:0}.root-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);text-align:left;gap:12px}.root-row:hover{color:var(--accent)}.root-row .root-native{font-size:1.35rem;color:var(--accent);font-family:var(--native);white-space:nowrap}.root-row small{display:block;color:var(--muted);font-size:.75rem;margin-top:3px}.root-row b{font-weight:400;font-size:.875rem}.basin-card{border-left:2px solid var(--teal);padding:4px 0 4px 13px;margin:20px 0}.basin-card .eyebrow{margin:0;font-size:.6875rem}.basin-card h3{font-family:var(--serif);font-size:1.6rem;margin:6px 0 8px}.basin-card p{font-size:.875rem;color:#bfccce;margin:0;line-height:1.6}.source-link{display:inline-block;font-size:.8125rem;margin:9px 0 4px;line-height:1.5}.letter-chips{display:flex;flex-wrap:wrap;direction:rtl;gap:7px;justify-content:flex-start}.letter-chips button{border:1px solid var(--line);width:43px;font-family:var(--native);font-size:1.5rem;border-radius:5px}.word-list{display:grid;gap:13px;margin:15px 0}.word-item{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:0 0 12px}.word-item .native{font-family:var(--native);font-size:1.45rem}.word-item b{font-size:.875rem;font-weight:400}.word-item small{font-size:.75rem;display:block;color:var(--muted);margin-top:5px}.word-item.selected{border-color:var(--accent)}.motion-section{border-top:1px solid #3c4c51;margin-top:28px;padding-top:20px}.motion-section .section-heading{margin-bottom:7px}.motion-preview{position:relative;display:block;overflow:hidden;width:100%;padding:0;border-radius:8px;border:1px solid #425954;background:#101d26;aspect-ratio:14/9}.motion-preview canvas{display:block;width:100%;height:100%;object-fit:contain}.motion-expand{position:absolute;right:12px;top:10px;color:#cddad8}.motion-caption{position:absolute;left:12px;bottom:12px;font-size:.625rem;letter-spacing:.17em;color:#9dc2be}.motion-note{font-size:.75rem;line-height:1.6;color:var(--muted);margin:9px 0 13px}.motion-actions{display:flex;justify-content:space-between;gap:10px}.motion-actions button{font-size:.8125rem}.app-footer{display:flex;justify-content:space-between;align-items:center;gap:20px;color:#96a9ad;font-size:.6875rem;letter-spacing:.06em;padding:20px 0 25px}.app-footer>div{display:flex;align-items:center;gap:20px;letter-spacing:0;flex-wrap:wrap}.app-footer .quiet{font-size:.75rem}.footer-divider{padding:0 12px;color:var(--accent)}#save-status{font-size:.75rem}dialog{background:#192831;color:var(--text);border:1px solid #48615f;border-radius:12px;max-width:620px;width:calc(100% - 32px);max-height:88dvh;padding:38px;box-shadow:0 25px 80px #0009}dialog::backdrop{background:#061016bb;backdrop-filter:blur(8px)}dialog h2{font-size:2.2rem;font-family:var(--serif);margin:6px 0 24px}dialog p{font-size:1rem;color:#c6d2d1}dialog h3{margin:25px 0 10px}dialog .dialog-close{position:absolute;right:16px;top:12px;min-width:36px;font-size:1.7rem;color:var(--muted)}dialog label{display:block;font-size:.875rem;color:#e1e7e2;margin:0 0 18px}dialog input,dialog textarea,dialog select{display:block;width:100%;padding:12px;border:1px solid #4b6169;border-radius:5px;background:#101e26;color:var(--text);margin-top:8px;font-size:1rem}dialog textarea{resize:vertical}dialog small{display:block;color:var(--muted);font-size:.8125rem;line-height:1.6;margin-top:7px}dialog .form-note{font-size:.8125rem;color:var(--muted)}.primary{background:var(--accent);border-radius:5px;padding:12px 20px;color:#18232a;font-weight:600;width:100%}.primary:hover{background:#ead0a1;color:#101b21}.form-error{font-size:.875rem;color:#ffc4b3;line-height:1.5}.or-line{text-align:center;color:var(--muted);font-size:.8125rem;margin:20px}.file-label{text-align:center;cursor:pointer;padding:13px!important}.file-label input{font-size:.875rem;border:0;padding:5px;background:none}.brief-box{margin-top:25px;border-top:1px solid var(--line)}.brief-box p{font-size:.875rem}.motion-dialog{max-width:900px}.motion-dialog canvas{width:100%;height:auto;display:block;border-radius:6px}.motion-dialog h2{margin-bottom:12px}.motion-dialog>p:last-child{font-size:.875rem}#basin-video{width:100%;border-radius:6px;margin-top:18px;max-height:340px}.notice{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);padding:13px 22px;border:1px solid #617c71;border-radius:8px;background:#213832;color:#e1efdf;box-shadow:0 5px 40px #0006;max-width:calc(100% - 30px);opacity:0;pointer-events:none;transition:.2s;z-index:9;font-size:.875rem}.notice.visible{opacity:1;transform:translateX(-50%) translateY(0)}#empty-tree{position:absolute;top:45%;left:50%;transform:translate(-50%,-20%);text-align:center;width:85%}#empty-tree h3{font-family:var(--serif);font-size:1.65rem;font-weight:400;margin:15px 0}#empty-tree p{font-size:.875rem;color:var(--muted)}.empty-symbol{font-size:3rem;color:var(--teal)}.skip{position:absolute;top:-70px;left:20px;z-index:50;background:var(--accent);color:var(--bg);padding:15px}.skip:focus{top:10px}@keyframes appear{from{opacity:0}to{opacity:1}}
@media(min-width:1600px){.workspace{grid-template-columns:205px minmax(0,1fr) 370px}.alphabet-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.detail-scroll{max-height:850px}}
@media(max-width:1150px){.workspace{grid-template-columns:148px minmax(0,1fr) 295px}.alphabet-panel{padding:20px 12px}.detail-scroll{padding:20px 17px}.tree-header{padding:20px 14px 0}.tree-container{min-height:560px}.tree-footer{padding:10px}.legend{font-size:.6875rem}.brand{letter-spacing:.07em;font-size:.8125rem}}
@media(max-width:950px){.workspace{grid-template-columns:130px minmax(0,1fr)}.detail-panel{grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}.detail-scroll{max-height:none;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;padding:25px}.motion-section{border-top:0;margin:0;padding:0}.tree-container{min-height:510px}.tree-container svg{min-height:510px}.alphabet-note{display:none}.alphabet-panel>.wide{margin-top:20px}.alphabet-grid{gap:2px}.alphabet-panel .section-heading{flex-wrap:wrap}.masthead>.quiet{min-width:0}.brand span:last-child{max-width:110px;line-height:1.5}.tree-panel{min-height:650px}}
@media(max-width:640px){.masthead{padding:14px 18px;gap:10px;flex-wrap:wrap}.brand{font-size:.75rem}.brand span:last-child{max-width:150px}.brand-mark{width:35px;height:35px;font-size:1.7rem}.language-switch{order:3;width:100%;justify-content:center;margin-top:4px}.language-switch button{flex:1;padding:5px 12px}.masthead>.quiet{font-size:.75rem;margin-left:auto}.page-heading{padding:25px 0 20px}.page-heading .eyebrow{font-size:.625rem}.intro{display:none}main{padding:0 14px}.workspace{display:flex;flex-direction:column;border-radius:8px}.alphabet-panel{border-right:0;border-bottom:1px solid var(--line);padding:15px}.alphabet-panel .section-heading{margin-bottom:9px}.alphabet-panel .section-heading h2{font-size:.8125rem}.alphabet-grid{grid-template-columns:repeat(11,minmax(0,1fr));gap:2px}.letter-button{height:40px;font-size:1.45rem}.alphabet-panel>.wide{margin:10px 0 0;min-height:36px;font-size:.8125rem}.tree-panel{min-height:530px}.tree-container{min-height:420px}.tree-container svg{min-height:420px}.tree-footer{flex-wrap:wrap;padding:8px 12px}.detail-scroll{display:block;padding:22px}.motion-section{border-top:1px solid var(--line);margin-top:22px;padding-top:18px}.app-footer{display:block;padding:17px 0}.app-footer>div{gap:16px;margin-top:10px}.app-footer>div #save-status{width:100%;margin-top:5px}.detail-top{justify-content:flex-start;gap:25px}.detail-glyph{font-size:3.8rem}dialog{padding:30px 22px}.motion-dialog{padding:28px 18px}.tree-container svg text.native{font-size:30px}.tree-container svg text.label{font-size:20px}.tree-container svg text.level-label{font-size:14px}.legend{font-size:.6875rem}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.pan-hint{display:block;width:100%;font-size:.75rem;margin:3px 0 0;color:#a4b4b8}.detail-top>div:last-child{min-width:0}.detail-name,.detail-copy,.basin-card p,.word-item{overflow-wrap:anywhere}

/* Root permutations and the learning studio */
.study-nav{display:flex;flex-wrap:wrap;gap:1.5rem;padding:1rem 0;border-bottom:1px solid #365056;margin-bottom:1.5rem;font-size:1rem}
.study-nav a{color:#d6b67b;text-decoration:none}.study-nav a:hover{text-decoration:underline}
.learning-section{padding:3rem 0;border-top:1px solid #365056;margin-top:3rem;scroll-margin-top:1rem}
.learning-section h2{font-size:clamp(1.8rem,3vw,2.7rem);font-weight:500;margin:.5rem 0 1rem}.learning-section h3{font-size:1.25rem}.learning-lead{max-width:78ch;line-height:1.8;font-size:1.05rem;color:#bbc9c9}
.permutation-controls{display:flex;gap:1rem;align-items:end;flex-wrap:wrap;margin:1.5rem 0}.permutation-controls label{display:grid;gap:.5rem;min-width:150px;font-size:1rem}.permutation-controls input,.permutation-controls select{padding:.8rem;background:#172c32;color:#eef2e9;border:1px solid #63847d;border-radius:8px;font-size:1.1rem;max-width:100%}.permutation-controls input{width:220px;font-size:1.4rem}
.permutation-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:1rem}.permutation-card{padding:1.5rem;background:#14282f;border:1px solid #365056;border-radius:12px}.permutation-card h3{font-size:2.5rem;margin:0 0 1rem;text-align:left}.permutation-card h4{font-size:1.1rem;margin:1rem 0 .5rem}.permutation-card p{font-size:1rem;line-height:1.65;color:#bbc9c9}.permutation-card a{display:inline-block;margin:.5rem 1rem .5rem 0}.permutation-card button{display:block;margin-top:.8rem;white-space:normal;text-align:left}
.lesson-columns{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin:1.8rem 0}.lesson-columns p,.lesson-note p,.radial-detail p{line-height:1.8;font-size:1rem;color:#bbc9c9}.learning-section a{color:#d6b67b}.lesson-note{border-top:1px solid #365056;padding:1.2rem 0}.lesson-note summary{cursor:pointer;font-size:1.05rem;color:#e4e9df}.lesson-note p{max-width:90ch}.interpretation-control{display:flex;align-items:center;gap:.7rem;font-size:1rem;margin:1rem 0}.interpretation-control input{width:1.25rem;height:1.25rem;accent-color:#d6b67b}
.radial-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:1.5rem}.radial-scroll{overflow-x:auto}#radial-map{width:100%;min-width:680px;height:auto;display:block}.radial-edge{stroke:#7db8b0;stroke-width:2}.radial-edge.proposed{stroke:#d6b67b;stroke-dasharray:7 7}.radial-node{cursor:pointer}.radial-node rect{fill:#1a3036;stroke:#7db8b0;stroke-width:1.5}.radial-node text{fill:#f0f1e9;font-size:20px;pointer-events:none}.radial-node text.radial-native{font-size:16px;fill:#becdcb}.radial-node[aria-pressed=true] rect,.radial-node:focus rect{stroke:#edc675;stroke-width:3;fill:#2e3a38}.radial-node:focus{outline:none}.radial-detail{align-self:center;background:#172c32;border:1px solid #47615e;padding:1.5rem;border-radius:12px}.lexical-only .proposed,.lexical-only [data-node=mix],.lexical-only [data-node=integration]{display:none}
.lesson-table-scroll{overflow:auto;margin:2rem 0}.lesson-table{width:100%;border-collapse:collapse;font-size:1rem}.lesson-table caption{text-align:left;font-size:1.2rem;margin-bottom:1rem;color:#e4e9df}.lesson-table th,.lesson-table td{padding:1rem;text-align:left;border-bottom:1px solid #365056;vertical-align:top;line-height:1.6}.lesson-table th{color:#d6b67b}.lesson-table td{color:#c2ceca}.lesson-table bdi{white-space:nowrap}
@media(max-width:850px){.radial-layout,.lesson-columns{grid-template-columns:1fr}.radial-detail{min-height:0}.learning-section{padding:2rem 0}.permutation-controls>*{max-width:100%}}

.research-terms dt{font-size:1.05rem;color:#d6b67b;margin-top:1rem}.research-terms dd{margin:.4rem 0 1rem;max-width:90ch;font-size:1rem;line-height:1.8;color:#bbc9c9}.research-steps{font-size:1rem;line-height:1.8;max-width:85ch;color:#bbc9c9}.research-steps li{margin:.6rem 0}

.passage-filter{display:grid;gap:.6rem;max-width:340px;font-size:1rem;margin:1.5rem 0}.passage-filter select{background:#172c32;color:#edf1e8;padding:.8rem;border:1px solid #63847d;border-radius:8px;font-size:1rem}.passage-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:1rem}.passage-card{padding:1.5rem;border:1px solid #3e5c5b;border-top:3px solid #8ec7ba;border-radius:12px;background:#14282f}.passage-card.commentary{border-top-color:#a4bdd6}.passage-card.proposal{border-top-color:#d6b67b}.passage-card p{font-size:1rem;line-height:1.75;color:#bbc9c9}.passage-card .passage-form{font-size:1.8rem;color:#e6e9dc;text-align:left;margin:.7rem 0}.passage-card .passage-ref{color:#d6b67b}.passage-card h3{line-height:1.4}.passage-card .tag{white-space:normal}

.pair-editor{display:grid;gap:1rem;max-width:700px;margin:1.5rem 0}.pair-editor label{display:grid;gap:.5rem;font-size:1rem}.pair-editor input,.pair-editor textarea{width:100%;box-sizing:border-box;padding:.8rem;font-size:1rem;background:#172c32;color:#edf1e8;border:1px solid #63847d;border-radius:8px}.word-composition li{font-size:1rem;line-height:1.8;padding:.5rem}.word-composition button{margin-left:1rem}#two-letter-basins select{max-width:280px}#two-letter-basins>p{line-height:1.75}#pair-status{color:#d6b67b}