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:root{--tree-list-header-width:min(1200px,calc(100% - 3rem));--tree-list-surface-height:24vh}.tree-list-page{height:100%;min-height:0;color:hsl(var(--foreground));box-sizing:border-box;flex-direction:column;justify-content:flex-end;gap:0;padding:0;display:flex;position:relative;overflow:visible}.tree-list-page>*{transition:opacity .3s,filter .3s}.tree-list-page.overlay-active>:not(.tree-overlay-root){opacity:0;filter:blur(10px);pointer-events:none}.tree-list-header{width:var(--tree-list-header-width);flex-direction:column;gap:1.5rem;margin-left:auto;margin-right:auto;display:flex}.tree-list-hero{flex-direction:column;gap:.75rem;display:flex}.tree-list-hero-title{letter-spacing:-.01em;font-size:clamp(2.25rem,4vw,3.5rem);font-weight:700}.tree-list-hero-subtitle{color:#ffffffbf;max-width:720px;font-size:1.1rem}.tree-list-controls{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.tree-list-search{flex:1;min-width:220px}.tree-list-search 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#6c63ff66}.tree-list-surface-wrapper{flex:1;width:100%;max-width:100%;height:100%;min-height:0;position:relative;overflow:hidden}.tree-list-scroll-area{height:var(--tree-list-surface-height);cursor:grab;touch-action:pan-y;-webkit-user-select:none;user-select:none;z-index:2;justify-content:center;align-items:flex-end;display:flex;position:fixed;bottom:0;left:0;right:0}.tree-list-scroll-area.dragging{cursor:grabbing}.tree-list-scroll-viewport{width:100%;height:100%;position:relative;overflow:visible}.tree-list-scroll-track{z-index:5;will-change:transform;backface-visibility:hidden;transition:opacity .35s;position:absolute;bottom:0;left:0;transform:translateZ(0)}.tree-list-scroll-track--hidden{opacity:0;pointer-events:none}.tree-list-empty-state{text-align:center;color:hsl(var(--foreground));background:#ffffffe6;border:1px solid #0000001a;border-radius:18px;width:min(400px,90%);padding:1.2rem 1.6rem;position:absolute;top:25%;left:50%;transform:translate(-50%,-50%)}.dark .tree-list-empty-state{background:#0f101cbf;border:1px solid #ffffff40}.tree-surface-empty-overlay{pointer-events:none;z-index:6;justify-content:center;align-items:flex-start;padding-top:clamp(1.5rem,6vh,4rem);display:flex;position:absolute;inset:0}.tree-surface-empty-overlay .tree-list-empty-state{pointer-events:auto;width:min(360px,100% - 3rem);position:static;transform:none}.tree-node{transform-origin:50% 100%;text-align:center;color:hsl(var(--foreground));cursor:pointer;appearance:none;will-change:transform;backface-visibility:hidden;contain:layout style;background:0 0;border:none;flex-direction:column;justify-content:flex-start;align-items:center;gap:.25rem;width:fit-content;height:auto;padding:0;line-height:1;transition:filter .3s,opacity .3s;display:flex;position:absolute}.dark .tree-node{color:#fff}.tree-node:hover{filter:drop-shadow(0 0 18px #7bc9ff99)}.tree-node__avatar{justify-content:center;align-items:center;width:4rem;height:4rem;margin:0 auto;display:flex}.tree-node__emoji{font-size:4rem}.tree-node__avatar-image{border-radius:14px;width:100%;height:100%;display:inline-flex;overflow:hidden;box-shadow:0 8px 24px #00000059}.tree-node__avatar-image img{-o-object-fit:cover;object-fit:cover;width:100%;height:100%;display:block}.tree-node__label{letter-spacing:.04em;text-shadow:0 0 4px #ffffffe6,0 0 2px #fff;white-space:nowrap;color:hsl(var(--foreground));margin:0 0 .35rem;font-weight:600}.dark .tree-node__label{color:#fff;text-shadow:0 2px 12px #000000bf}.tree-node__label--floating{animation:6s ease-in-out infinite treeLabelFloat;display:inline-block}.tree-node__badge{letter-spacing:.08em;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:hsl(var(--foreground));white-space:nowrap;background:#ffffffd9;border:1px solid #0000001a;border-radius:999px;justify-content:center;align-self:center;align-items:center;gap:.25rem;margin-top:.15rem;padding:.15rem .75rem;font-size:.75rem;display:flex}.dark .tree-node__badge{color:#fff;background:#0f101ca6;border:1px solid #ffffff26}@keyframes treeSway{0%{transform:translate(0)rotate(0)}to{transform:translate(4px)rotate(1deg)}}@keyframes treeLabelFloat{0%{transform:translateY(0)}50%{transform:translateY(-6px)}to{transform:translateY(0)}}.planet-surface{width:100%;height:var(--tree-list-surface-height);pointer-events:none;z-index:1;border-top-left-radius:50% 35%;border-top-right-radius:50% 35%;position:fixed;bottom:0;left:0;overflow:hidden}.planet-surface-base{z-index:0;position:absolute;inset:0}.planet-surface-texture{will-change:transform;backface-visibility:hidden;z-index:1;width:110%;height:100%;position:absolute;bottom:0;left:0;transform:translateZ(0)}.planet-feature-layer{pointer-events:none;z-index:3;position:absolute;inset:0}.planet-detail-blob{mix-blend-mode:screen;pointer-events:none;border-radius:50%/60%;position:absolute}.planet-rock-cluster{mix-blend-mode:multiply;pointer-events:none;border-radius:70% 60% 55% 65%;position:absolute;overflow:hidden}.planet-rock-cluster>span{border-radius:inherit;display:block;position:absolute;inset:0}.planet-pebble{filter:blur(2px);mix-blend-mode:soft-light;pointer-events:none;border-radius:999px;position:absolute}.planet-micro-crater{mix-blend-mode:screen;pointer-events:none;background:radial-gradient(circle at 30% 35%,#ffffff40,#0000 55%);border:1px solid #ffffff1a;border-radius:50%;position:absolute}.planet-ridge-line{opacity:.35;mix-blend-mode:screen;pointer-events:none;border-top:1px solid #ffffff40;border-bottom:1px solid #0003;width:160%;height:18%;position:absolute;left:-30%}.planet-arc-overlay{z-index:4;background:linear-gradient(#ffffff1f,#00000040);border-top-left-radius:50% 35%;border-top-right-radius:50% 35%;position:absolute;inset:0;box-shadow:inset 0 15px 30px #ffffff26,inset 0 -25px 45px #0003}:is(.dark,[data-theme=dark]) .planet-arc-overlay{background:linear-gradient(#ffffff14,#000000a6);box-shadow:inset 0 15px 30px #ffffff14,inset 0 -25px 45px #0009}.tree-overlay-backdrop{z-index:60;background:0 0;justify-content:stretch;align-items:stretch;display:flex;position:fixed;inset:0;overflow:hidden}.tree-overlay-panel{color:#fff;width:100%;height:100%;box-shadow:none;z-index:2;background:0 0;border:none;border-radius:0;padding:clamp(1.5rem,3vw,3rem) clamp(1.5rem,4vw,4rem);position:relative;overflow-y:auto}.tree-overlay-close{color:#fff;letter-spacing:.2em;text-transform:uppercase;cursor:pointer;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);white-space:nowrap;pointer-events:auto;background:#0306128c;border:1px solid #ffffff59;border-radius:999px;align-items:center;gap:.4rem;padding:.55rem 1.5rem .45rem;font-size:.85rem;transition:border .2s,background .2s,color .2s;display:inline-flex;position:absolute;top:1.5rem;right:1.5rem}.tree-overlay-close:hover{background:#ffffff1f;border-color:#ffffff8c}.tree-overlay-close-label{letter-spacing:.25em}.tree-overlay-close-icon{font-size:1.15rem;line-height:1}.tree-detail-layout{flex-direction:column;gap:1.75rem;display:flex}.tree-detail-creator,.tree-detail-access{font-size:1.25rem;font-weight:600}.tree-detail-stats{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.75rem;display:grid}.tree-detail-stat-card{background:#080a14a6;border:1px solid #ffffff26;border-radius:16px;padding:1rem}.tree-detail-stat-label{letter-spacing:.2em;text-transform:uppercase;color:#ffffff80;font-size:.75rem}.tree-detail-stat-value{margin-top:.25rem;font-size:1.35rem;font-weight:600}.tree-detail-stat-card p{color:#ffffffb3;margin-top:.35rem;font-size:.85rem}.tree-detail-branches{flex-direction:column;gap:1rem;display:flex}.tree-detail-branch-card{background:#0e1020bf;border:1px solid #ffffff26;border-radius:20px;padding:1.25rem}.tree-detail-branch-header h3{margin-bottom:.35rem;font-size:1.25rem}.tree-detail-branch-header p{color:#ffffffbf;line-height:1.5}.tree-detail-branch-points{flex-direction:column;gap:.35rem;margin:.75rem 0;padding-left:1.25rem;list-style:none;display:flex;position:relative}.tree-detail-branch-points li{color:#ffffffbf;font-size:.95rem}.tree-detail-leaves{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.75rem;display:grid}.tree-detail-leaf-card{background:#080a1699;border:1px solid #ffffff1f;border-radius:16px;padding:1rem}.tree-detail-leaf-card h4{margin-bottom:.35rem;font-size:1rem}.tree-detail-leaf-card p{color:#ffffffbf;margin-bottom:.35rem;line-height:1.5}.tree-detail-leaf-card ul{flex-direction:column;gap:.35rem;margin:0;padding-left:1.25rem;list-style:outside;display:flex}.tree-detail-leaf-card li{color:#ffffffb3;font-size:.9rem}.tree-detail-actions{cursor:pointer;gap:2rem;font-size:1rem;display:flex}.curriculum-sidebar.collapsed+.curriculum-main{grid-column:span 1}.curriculum-course-list{flex-direction:column;gap:.75rem;display:flex;overflow-y:auto}.curriculum-course-item{background:#ffffff05;border:1px solid #ffffff14;border-radius:12px}.curriculum-course-item.active{border-color:#7bc9ff80;box-shadow:0 10px 25px #0b102373}.curriculum-course-button{text-align:left;color:#fff;cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:center;width:100%;padding:.9rem 1rem;display:flex}.curriculum-course-code{letter-spacing:.2em;text-transform:uppercase;color:#ffffffa6;font-size:.85rem}.curriculum-course-title{font-size:1rem;font-weight:600}.curriculum-course-toggle{color:#ffffffa6;font-size:1.45rem;line-height:1}.curriculum-chapter-list{flex-direction:column;gap:.35rem;margin:0;padding:0 0 .85rem;list-style:none;display:flex}.curriculum-chapter-button{color:#fff;text-align:left;cursor:pointer;background:#ffffff08;border:none;border-radius:10px;justify-content:space-between;gap:.5rem;width:100%;padding:.65rem 1rem;display:flex}.curriculum-chapter-button.active{background:#7bc9ff26;border:1px solid #7bc9ff66}.curriculum-chapter-pill{color:#ffffffa6;font-size:.75rem}.curriculum-main{min-height:0;overflow-y:auto}.curriculum-panel{flex-direction:column;gap:1rem;display:flex}.curriculum-lede{color:#ffffffd9;font-size:1.05rem;line-height:1.65}.curriculum-body{color:#fffc;line-height:1.6}.curriculum-chip-list{flex-wrap:wrap;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.curriculum-chip-list li{letter-spacing:.08em;text-transform:uppercase;color:#ffffffb3;border:1px solid #fff3;border-radius:999px;padding:.35rem .85rem;font-size:.78rem}.curriculum-meta-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;display:grid}.curriculum-meta-label{letter-spacing:.2em;text-transform:uppercase;color:#ffffff8c;font-size:.75rem}.curriculum-subtitle{letter-spacing:.1em;text-transform:uppercase;color:#fff9;margin-top:.5rem;font-size:.95rem}.curriculum-bullet-list{color:#ffffffd9;flex-direction:column;gap:.35rem;margin:.5rem 0 0;padding-left:1.25rem;display:flex}.curriculum-equation-list{flex-direction:column;gap:.35rem;margin:.5rem 0 0;padding:0;list-style:none;display:flex}.curriculum-equation-list code{background:#0000004d;border-radius:8px;padding:.35rem .5rem;font-family:JetBrains Mono,Fira Code,monospace;font-size:.95rem}.seed-list{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.75rem;display:grid}.seed-card{color:inherit;text-align:left;cursor:pointer;background:#ffffff08;border:1px solid #ffffff1a;border-radius:14px;flex-direction:column;justify-content:space-between;padding:1rem;transition:border .2s,transform .2s;display:flex}.seed-card:hover{border-color:#7bc9ff66;transform:translateY(-2px)}.seed-card-title{margin-bottom:.35rem;font-weight:600}.seed-card p{color:#ffffffbf;line-height:1.5}.seed-card-link{color:#7bc9ffe6;font-size:.85rem}.seed-back-link{color:#7bc9ffe6;cursor:pointer;background:0 0;border:none;align-self:flex-start;margin-bottom:.5rem;font-size:.9rem}.curriculum-panel>p{margin:0}.tree-detail-placeholder{color:#ffffffb3}.curriculum-grid{grid-template-columns:minmax(240px,320px) minmax(0,1fr);gap:2rem;min-height:0;margin-top:2rem;display:grid}.curriculum-grid.sidebar-collapsed{grid-template-columns:60px minmax(0,1fr)}.curriculum-sidebar{border-right:1px solid #ffffff14;flex-direction:column;gap:1.25rem;padding-right:1.5rem;display:flex}.curriculum-sidebar-top-slot{border-bottom:1px solid #ffffff14;flex-direction:column;gap:1rem;padding-bottom:1rem;display:flex}.curriculum-sidebar.collapsed .curriculum-sidebar-top-slot{display:none}.create-sidebar-selectors{flex-direction:column;gap:1rem;display:flex}.create-sidebar-selector-label{letter-spacing:.25em;text-transform:uppercase;color:#ffffff8c;margin-bottom:.35rem;font-size:.7rem}.create-sidebar-select-trigger{color:#fff;background:#050712cc;border-color:#ffffff26;height:2.6rem;font-size:.9rem}.create-sidebar-select-trigger:hover{border-color:#fff6}.create-sidebar-select-content{color:#fff;background:#050712f2;border:1px solid #ffffff14}.create-sidebar-selector-hint{color:#fff9;margin-top:.35rem;font-size:.8rem}.curriculum-sidebar.collapsed{border-right-color:#ffffff26;gap:.75rem;width:54px;padding-right:.5rem}.curriculum-sidebar-header{justify-content:space-between;align-items:center;gap:.5rem;display:flex}.curriculum-hint{color:#fff9;font-size:.85rem}.curriculum-sidebar.collapsed .curriculum-hint{display:none}.curriculum-sidebar-title{margin:.1rem 0 0;font-size:1.1rem}.curriculum-sidebar.collapsed .curriculum-sidebar-title,.curriculum-sidebar.collapsed .tree-detail-pretitle,.curriculum-sidebar.collapsed .curriculum-course-list{display:none}.curriculum-sidebar-toggle{color:#fff;cursor:pointer;background:#ffffff0d;border:1px solid #ffffff4d;border-radius:999px;width:32px;height:32px;font-size:1rem}.curriculum-sidebar.collapsed .curriculum-sidebar-toggle{width:36px;height:36px}.curriculum-sidebar-meta{border-top:1px solid #ffffff1a;flex-direction:column;gap:1rem;margin-top:auto;padding-top:1.25rem;display:flex}.curriculum-sidebar.collapsed .curriculum-sidebar-meta{display:none}@media (max-width:1024px){.curriculum-grid{grid-template-columns:1fr}.curriculum-sidebar{border-bottom:1px solid #ffffff14;border-right:none;padding-bottom:1.5rem}}@media (max-width:640px){.tree-overlay-panel{padding:1.25rem}.curriculum-course-button,.curriculum-chapter-button{padding:.65rem}}@media (max-width:768px){.tree-list-page{padding:.5rem 1rem 0}.tree-list-header{width:100%}.tree-list-controls{flex-direction:column;align-items:stretch}.tree-list-search{width:100%}}