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span{background:#f4efe26b;border-radius:999px;width:48px;height:5px;display:block;box-shadow:0 0 12px #ffd70014}.mobile-sheet-handle:hover span,.mobile-sheet-handle:focus-visible span{background:var(--gold)}.workspace-map-pane{inset:var(--workspace-nav-height) auto 0 0;will-change:width;width:100%;position:absolute;overflow:hidden}.workspace-map-pane .mindmap-shell{width:100%;height:100%;min-height:0}.history-node.is-selected{border-color:var(--gold);box-shadow:0 0 0 2px #ffd70099, 0 18px 52px #00000075, 0 0 46px var(--node-color)}@supports (color:color-mix(in lab, red, red)){.history-node.is-selected{box-shadow:0 0 0 2px #ffd70099, 0 18px 52px #00000075, 0 0 46px color-mix(in srgb, var(--node-color) 52%, transparent)}}.workspace-detail-pane{top:var(--workspace-nav-height);width:var(--detail-pane-width);border-left:1px solid var(--selected-node-color);position:absolute;bottom:0;right:0;overflow:hidden auto}@supports (color:color-mix(in lab, red, red)){.workspace-detail-pane{border-left:1px solid color-mix(in srgb, var(--selected-node-color) 34%, transparent)}}.workspace-detail-pane{background:radial-gradient(circle at 40% 0%, var(--selected-node-color), transparent 32%), #08090cfa}@supports (color:color-mix(in lab, red, red)){.workspace-detail-pane{background:radial-gradient(circle at 40% 0%, color-mix(in srgb, var(--selected-node-color) 15%, transparent), transparent 32%), #08090cfa}}.workspace-detail-pane{will-change:transform;transform:translate(100%);box-shadow:-24px 0 80px #00000061}.pane-toolbar{z-index:6;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#08090cd1;border-bottom:1px solid #ffd70029;justify-content:space-between;gap:12px;padding:14px 16px;display:flex;position:sticky;top:0}.pane-toolbar button,.pane-toolbar a,.pane-toolbar span{border:1px solid var(--panel-border);color:#f4efe2c7;cursor:pointer;background:#ffffff09;border-radius:999px;align-items:center;min-height:36px;padding:0 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button{color:#f4efe2b8;cursor:pointer;text-align:left;background:#ffffff06;border:1px solid #ffd70029;border-radius:9px;justify-content:space-between;align-items:center;gap:10px;min-width:0;min-height:52px;padding:0 14px;transition:border-color .16s,background .16s,color .16s;display:flex}.performance-options button:hover,.performance-options button:focus-visible,.performance-options button.is-active{border-color:var(--gold);background:#ffd70014;outline:none}.performance-options button>span:first-child{color:#fff8e8;font-size:1.05rem;font-weight:880}.performance-options button small{color:#f4efe27a;font-family:var(--font-geist-mono), monospace;text-transform:uppercase;font-size:.64rem}.performance-options button.is-active small{color:var(--gold)}.performance-summary{border-left:3px solid var(--gold);background:#ffd7000d;min-height:64px;padding:13px 14px}.performance-summary a{color:var(--gold);text-underline-offset:3px;font-weight:820;-webkit-text-decoration:underline #ffd7006b;text-decoration:underline #ffd7006b}.performance-summary a:hover,.performance-summary a:focus-visible{color:#fff8e8;-webkit-text-decoration-color:var(--gold);-webkit-text-decoration-color:var(--gold);-webkit-text-decoration-color:var(--gold);text-decoration-color:var(--gold);outline:none}.pane-toolbar button:hover,.pane-toolbar button:focus-visible,.pane-toolbar a:hover,.pane-toolbar a:focus-visible{background:var(--gold);color:#08090c;outline:none;transform:translateY(-1px)}.pane-toolbar span{cursor:default;color:#f4efe2a3}.flashcard-panel{background:#0c0e14c2;border:1px solid #ffd7002e;border-radius:8px;gap:16px;margin:16px;padding:16px;display:grid;box-shadow:0 18px 70px #00000042}.flashcard-panel-header{justify-content:space-between;align-items:start;gap:14px;display:flex}.flashcard-panel-header h2{color:#fff8e8;margin:0;font-size:1rem;font-weight:860;line-height:1.15}.flashcard-stats{flex-wrap:wrap;justify-content:end;gap:6px;display:flex}.flashcard-stats span{color:#f4efe2a8;min-height:24px;font-family:var(--font-geist-mono), monospace;border:1px solid #ffd70024;border-radius:999px;padding:4px 8px;font-size:.66rem;font-weight:800}.flashcard-stack{perspective:1200px;place-items:center;min-height:250px;display:grid;position:relative}.flashcard-stack.is-list{perspective:none;align-content:start;gap:12px;min-height:0}.flashcard{--drag-x:0px;--drag-rotate:0deg;--card-offset:0;border:1px solid var(--card-color);width:min(100%,420px);min-height:235px;margin:auto;display:grid;position:absolute;inset:0}@supports (color:color-mix(in lab, red, red)){.flashcard{border:1px solid color-mix(in srgb, var(--card-color) 48%, transparent)}}.flashcard{color:#fff8e8;cursor:pointer;transform:translateX(var(--drag-x)) translateY(calc(var(--card-offset) * 10px)) scale(calc(1 - var(--card-offset) * .045)) rotate(var(--drag-rotate));transform-style:preserve-3d;background:0 0;border-radius:8px;padding:0;transition:border-color .16s,box-shadow .16s,transform .18s}.flashcard-stack.is-list .flashcard{width:100%;min-height:154px;margin:0;position:relative;inset:auto;transform:none}.flashcard-stack.is-dragging .flashcard.is-top{transition:border-color .16s,box-shadow .16s}.flashcard:disabled{cursor:default}.flashcard.is-top{z-index:3;box-shadow:0 22px 80px #0000006b, 0 0 34px var(--card-color)}@supports (color:color-mix(in lab, red, red)){.flashcard.is-top{box-shadow:0 22px 80px #0000006b, 0 0 34px color-mix(in srgb, var(--card-color) 18%, transparent)}}.flashcard-stack.is-list .flashcard.is-top{z-index:auto;box-shadow:0 14px 38px #00000042, 0 0 24px var(--card-color)}@supports (color:color-mix(in lab, red, red)){.flashcard-stack.is-list .flashcard.is-top{box-shadow:0 14px 38px #00000042, 0 0 24px color-mix(in srgb, var(--card-color) 12%, transparent)}}.flashcard-stack.is-list .flashcard.is-active-list-card{box-shadow:0 18px 54px #00000057, 0 0 32px var(--card-color);border-color:#ffd70085}@supports (color:color-mix(in lab, red, red)){.flashcard-stack.is-list .flashcard.is-active-list-card{box-shadow:0 18px 54px #00000057, 0 0 32px color-mix(in srgb, var(--card-color) 22%, transparent)}}.flashcard:not(.is-top){z-index:calc(2 - var(--card-offset));opacity:calc(1 - var(--card-offset) * .2);pointer-events:none}.flashcard-stack.is-list .flashcard:not(.is-top){opacity:1;pointer-events:auto}.flashcard.is-known{border-color:#61db9ab8;box-shadow:0 22px 80px #0000006b,-14px 0 44px #61db9a33}.flashcard.is-revise{border-color:#ffd700b8;box-shadow:0 22px 80px #0000006b,14px 0 44px #ffd70038}.flashcard-face{background:radial-gradient(circle at 20% 0%, var(--card-color), transparent 38%), linear-gradient(145deg, #ffffff13, #ffffff05), #08090cf5;border-radius:8px;grid-area:1/1;align-content:center;gap:16px;min-height:235px;display:grid}@supports (color:color-mix(in lab, red, red)){.flashcard-face{background:radial-gradient(circle at 20% 0%, color-mix(in srgb, var(--card-color) 24%, transparent), transparent 38%), linear-gradient(145deg, #ffffff13, #ffffff05), #08090cf5}}.flashcard-face{backface-visibility:hidden;overflow-wrap:anywhere;text-align:left;padding:24px}.flashcard-stack.is-list .flashcard-face{min-height:154px;padding:18px}.flashcard-front{transform:rotateY(0)}.flashcard-back{transform:rotateY(180deg)}.flashcard-stack.is-flipped:not(.is-list) .flashcard.is-top,.flashcard-stack.is-flipped.is-list .flashcard.is-active-list-card{transform:translateX(var(--drag-x)) translateY(calc(var(--card-offset) * 10px)) scale(calc(1 - var(--card-offset) * .045)) rotate(var(--drag-rotate)) rotateY(180deg)}.flashcard-stack.is-flipped.is-list .flashcard.is-active-list-card{transform:rotateY(180deg)}.flashcard-meta{color:var(--card-color);font-family:var(--font-geist-mono), monospace;text-transform:uppercase;font-size:.68rem;font-weight:850;line-height:1.35}.flashcard strong{color:#fff8e8;letter-spacing:0;font-size:clamp(1.05rem,2.5vw,1.52rem);font-weight:820;line-height:1.18}.flashcard-actions{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:10px;display:grid}.flashcard-actions button{color:#f4efe2c2;cursor:pointer;background:#ffffff09;border:1px solid #ffd7002e;border-radius:999px;min-height:38px;padding:0 12px;font-size:.76rem;font-weight:850;transition:background .18s,color .18s,transform .18s}.flashcard-actions button:hover,.flashcard-actions button:focus-visible{background:var(--gold);color:#08090c;outline:none;transform:translateY(-1px)}.flashcard-actions span{color:#f4efe294;font-family:var(--font-geist-mono), monospace;font-size:.72rem;font-weight:850}.flashcard-empty{color:#f4efe2ad;margin:0;line-height:1.5}.flashcard-pile-controls{gap:10px;padding:14px 16px 0;display:grid}.flashcard-pile-tabs,.flashcard-list-controls{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.flashcard-pile-tabs button,.flashcard-priority-button,.flashcard-list-controls button,.flashcard-list button{color:#f4efe2d6;cursor:pointer;background:linear-gradient(#ffd7001c,#ffffff06),#0c0e14eb;border:1px solid #ffd70057;border-radius:8px;transition:background .18s,border-color .18s,box-shadow .18s,color .18s,transform .18s;box-shadow:inset 0 0 0 1px #ffffff09,0 8px 24px #0003}.flashcard-pile-tabs button,.flashcard-list-controls button{justify-content:space-between;align-items:center;gap:10px;min-height:42px;padding:0 12px;font-size:.78rem;font-weight:850;display:flex}.flashcard-priority-button{color:#f4efe2ad;text-transform:uppercase;justify-self:start;align-items:center;gap:8px;min-height:32px;padding:0 10px;font-size:.68rem;font-weight:850;display:inline-flex}.flashcard-list-controls{padding:0 16px 16px}.flashcard-pile-tabs button span,.flashcard-list-controls button span{min-width:24px;height:24px;color:var(--gold);font-family:var(--font-geist-mono), 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16px;overflow:hidden}.flashcard-list{gap:8px;padding:10px;display:grid}.flashcard-list button{text-align:left;gap:4px;min-height:58px;padding:10px;display:grid}.flashcard-list button span{color:var(--gold);font-family:var(--font-geist-mono), monospace;text-transform:uppercase;font-size:.64rem;font-weight:850}.flashcard-list button strong{color:#fff8e8;font-size:.82rem;font-weight:760;line-height:1.25}.flashcard-list-empty{color:#f4efe294;margin:0;padding:0 12px 12px;font-size:.78rem;line-height:1.45}.flashcard-demo-page{background:radial-gradient(circle at 20% 10%,#ffd70021,#0000 34%),radial-gradient(circle at 90% 75%,#c94f4f29,#0000 32%),#08090c;grid-template-columns:minmax(280px,.8fr) minmax(360px,1fr);align-items:center;gap:clamp(24px,5vw,72px);min-height:100vh;padding:clamp(22px,5vw,72px);display:grid;overflow:auto}.flashcard-demo-copy{gap:18px;display:grid}.flashcard-demo-copy h1{color:#fff8e8;letter-spacing:0;margin:0;font-size:clamp(2.4rem,7vw,5.6rem);font-weight:880;line-height:.92}.flashcard-demo-copy p:not(.eyebrow){color:#f4efe2b8;max-width:560px;margin:0;font-size:clamp(1rem,2vw,1.2rem);line-height:1.55}.flashcard-demo-node{background:#0c0e14b8;border:1px solid #ffd7002e;border-radius:8px;gap:6px;max-width:360px;padding:16px;display:grid}.flashcard-demo-node span{color:var(--gold);font-family:var(--font-geist-mono), monospace;text-transform:uppercase;font-size:.68rem;font-weight:850}.flashcard-demo-node strong{color:#fff8e8;font-size:1rem;line-height:1.25}.workspace-detail-pane .node-article{max-width:none;padding:16px}.workspace-detail-pane .node-article h1{font-size:clamp(2rem,4.8vw,3.35rem)}.workspace-detail-pane .node-article header,.workspace-detail-pane .node-section,.workspace-detail-pane .link-panel{padding:clamp(18px,3vw,28px)}.workspace-detail-pane .node-links-grid{grid-template-columns:1fr}.node-page{height:100vh;color:var(--foreground);background:radial-gradient(circle at 30% 0,#ffd7001a,#0000 28%),#08090c;padding:28px;overflow:auto}.node-nav,.node-article{max-width:1120px;margin:0 auto}.node-nav{margin-bottom:24px}.node-nav a{border:1px solid var(--panel-border);min-height:42px;color:var(--gold);background:#ffd70014;border-radius:999px;align-items:center;padding:0 16px;font-weight:850;transition:background .18s,color .18s,transform .18s;display:inline-flex}.node-nav a:hover,.node-nav a:focus-visible{background:var(--gold);color:#08090c;outline:none;transform:translateY(-1px)}.node-article{gap:18px;display:grid}.node-article h1{color:#fff8e8;margin:0;font-size:clamp(2rem,5vw,4.8rem);font-weight:880;line-height:.96}.node-article header,.node-section,.link-panel{background:#0c0e14c2;border:1px solid #ffd7002e;border-radius:8px;padding:clamp(22px,4vw,38px);box-shadow:0 18px 70px #00000052}.node-article header p:last-child{color:#f4efe2bd;max-width:760px;font-size:1.1rem;line-height:1.55}.node-section h2,.link-panel h2{color:var(--gold);letter-spacing:.08em;text-transform:uppercase;margin:0 0 14px;font-size:.92rem}.node-section ul{color:#f4efe2c7;gap:10px;margin:0;padding-left:20px;line-height:1.55;display:grid}.content-card,.image-card,.quote-card,.fact-card{color:#f4efe2c7;background:#0c0e14c2;border:1px solid #ffd7002e;border-radius:8px;padding:clamp(18px,3vw,30px);line-height:1.55;box-shadow:0 18px 70px #00000052}.content-card p,.image-card p,.quote-card p,.fact-card p{margin:0}.content-card p+p,.image-card p+p,.fact-card p+p{margin-top:12px}.gold-heading{color:var(--gold);letter-spacing:.08em;text-transform:uppercase;margin:0 0 12px;font-size:.92rem;font-weight:850}.white-heading{color:#fff8e8;margin:0 0 10px;font-size:clamp(1.25rem,2vw,1.9rem);font-weight:860;line-height:1.08}.white-subheading{color:#fff8e8e6;margin:0 0 10px;font-size:clamp(1rem,1.4vw,1.25rem);font-weight:760;line-height:1.2}.muted-copy{color:#f4efe2b8;line-height:1.6}.small-note{color:#f4efe294;font-size:.82rem;line-height:1.45}.content-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.media-row{grid-template-columns:minmax(0,1fr) minmax(180px,34%);align-items:start;gap:clamp(16px,3vw,26px);display:grid}.media-row.media-left{grid-template-columns:minmax(180px,34%) minmax(0,1fr)}.media-row.media-left .media-copy{order:2}.media-row.media-left .image-card{order:1}.image-card{gap:10px;padding:10px;display:grid}.image-card img,.content-image{cursor:zoom-in;object-fit:cover;border-radius:6px;width:100%;height:auto;display:block}.image-card figcaption,.image-caption{color:#f4efe294;font-size:.76rem;line-height:1.35}.image-right{float:right;width:min(320px,42%);margin:0 0 16px 22px}.image-left{float:left;width:min(320px,42%);margin:0 22px 16px 0}.quote-card{border-left:4px solid var(--gold);color:#fff8e8db;font-size:clamp(1rem,1.5vw,1.25rem);font-weight:680}.fact-card{background:#ffd70012;border-color:#ffd7004d}.fact-list{color:#f4efe2c7;gap:9px;margin:0;padding-left:20px;line-height:1.55;display:grid}.pill-row{flex-wrap:wrap;gap:8px;display:flex}.content-pill{color:#f4efe2c7;background:#ffffff09;border:1px solid #ffd70033;border-radius:999px;align-items:center;min-height:28px;padding:0 10px;font-size:.78rem;font-weight:760;display:inline-flex}.clear-floats:after{clear:both;content:"";display:table}.image-lightbox{z-index:500;cursor:zoom-out;background:#000000db;place-items:center;animation:.18s ease-out lightbox-fade-in;display:grid;position:fixed;inset:0;overflow:hidden}.image-lightbox:before{content:"";pointer-events:none;background:radial-gradient(circle,#ffd70014,#0000 42%),#08090c2e;position:absolute;inset:0}.image-lightbox-img{z-index:1;cursor:zoom-in;object-fit:contain;max-width:min(92vw,1500px);max-height:88vh;transform:scale(var(--image-zoom));-webkit-user-select:none;user-select:none;border:1px solid #ffd7003d;border-radius:8px;transition:transform .22s cubic-bezier(.22,1,.36,1);display:block;box-shadow:0 28px 120px #000000bd,0 0 0 1px #ffffff0d}.image-lightbox-close{z-index:2;width:42px;height:42px;color:var(--gold);cursor:pointer;background:#08090cdb;border:1px solid #ffd7005c;border-radius:999px;place-items:center;font-size:.8rem;font-weight:900;line-height:1;transition:background .16s,color .16s,transform .16s;display:grid;position:fixed;top:18px;right:18px}.image-lightbox-close:hover,.image-lightbox-close:focus-visible{background:var(--gold);color:#08090c;outline:none;transform:scale(1.05)}@keyframes lightbox-fade-in{0%{opacity:0}to{opacity:1}}.prompt p,.empty-links{color:#f4efe2b8;margin:0;line-height:1.55}.node-links-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.node-link-list{gap:10px;display:grid}.node-link-list a{color:#fff8e8;background:#ffffff09;border:1px solid #ffd70024;border-left:4px solid;border-radius:8px;gap:3px;min-height:66px;padding:10px 12px;font-weight:850;transition:background .18s,transform .18s;display:grid}.node-link-list a:hover,.node-link-list a:focus-visible{background:#ffd70014;outline:none;transform:translate(3px)}.node-link-list span{color:var(--gold);font-family:var(--font-geist-mono), monospace;font-size:.72rem;font-weight:800}@media (max-width:800px){html,body{overflow:auto}.mindmap-shell{min-height:100vh}.history-workspace{--detail-pane-width:100vw;--workspace-nav-height:42px;height:100vh;min-height:100vh}.workspace-nav{grid-template-columns:28px minmax(0,1fr) auto;gap:8px;padding:5px 10px}.workspace-actions{gap:4px}.workspace-nav .mode-switch{width:100%}.workspace-nav .mode-switch button{padding:0 6px;font-size:.68rem}.workspace-nav .zoom-controls{display:none}.revise-pile-button{gap:0;width:42px;max-width:42px;min-height:32px;padding:0 4px;font-size:0}.revise-pile-button span{min-width:30px;font-size:.62rem}.flashcard-panel{margin:12px;padding:12px}.flashcard-panel-header,.flashcard-actions{gap:8px}.flashcard-actions button{padding:0 8px;font-size:.68rem}.flashcard-demo-page{grid-template-columns:1fr;align-items:start;padding-top:42px}.workspace-map-pane{inset:var(--workspace-nav-height) 0 auto;width:100%;height:100%}.history-workspace.has-detail-pane .workspace-map-pane{width:100%}.workspace-detail-pane{border-top:1px solid var(--selected-node-color);width:100%;height:48vh;inset:auto 0 0}@supports (color:color-mix(in lab, red, red)){.workspace-detail-pane{border-top:1px solid color-mix(in srgb, var(--selected-node-color) 34%, transparent)}}.workspace-detail-pane{border-left:0;transform:translateY(100%);box-shadow:0 -18px 70px #0000006b}.mobile-sheet-handle{display:flex}.workspace-detail-pane .pane-toolbar{top:28px}.map-hud{flex-direction:column;left:14px;right:14px}.mode-switch{width:100%}.history-node{max-width:142px}.node-links-grid,.content-grid,.media-row,.media-row.media-left{grid-template-columns:1fr}.media-row.media-left .media-copy,.media-row.media-left .image-card{order:initial}.image-right,.image-left{float:none;width:100%;margin:0 0 16px}}@media (max-width:980px){.home-hero,.course-grid,.two-column-section,.revision-layout,.revision-node-grid,.revision-link-grid{grid-template-columns:1fr}.hero-board{min-height:440px}.revision-node-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:680px){.home-nav,.revision-nav{flex-direction:column;align-items:flex-start}.home-nav-links,.revision-nav div{justify-content:start}.home-hero{min-height:0;padding-top:34px}.hero-copy h1,.revision-hero h1{font-size:clamp(2.75rem,16vw,4.2rem)}.hero-board{min-height:0}.hero-orbit{gap:8px;min-height:0;padding:10px;display:grid}.hero-orbit:before{display:none}.orbit-node{width:100%;min-height:58px;position:relative;top:auto;left:auto;transform:none}.orbit-node:hover,.orbit-node:focus-visible{transform:translateY(-1px)}.featured-node-list,.revision-node-grid,.revision-link-grid{grid-template-columns:1fr}.revision-hero,.revision-layout,.revision-section{width:min(100% - 36px,1220px)}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}