@font-face{font-family:Share Tech Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/share-tech-mono-v16-latin-regular-CCqdbj5z.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--font-ui: "Share Tech Mono", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--color-bg: #050608;--color-surface: #101218;--color-surface-elevated: #171a22;--color-border: #272b35;--color-border-subtle: #1b1f29;--color-accent: #00d4aa;--color-accent-soft: rgba(0, 212, 170, .12);--color-accent-glow: rgba(0, 212, 170, .25);--color-on-accent: #000000;--color-text: #e6edf7;--color-text-muted: #cacfd8;--color-danger: #ff4d6b;--color-success: #0a6;--color-warning: #c9a227;--color-error: #c44;--color-annotation-blue: #4d9fff;--color-annotation-orange: #ff8c3a;--color-annotation-contrast: #f0f4fa;--color-body-gradient-mid: #151a26;--color-panel-bg-from: #202636;--color-panel-bg-to: #11141d;--color-modal-backdrop: rgba(5, 6, 8, .85);--color-accent-rgb: 0, 212, 170;--color-wash-rgb: 255, 255, 255;--wash-strength: 1;--color-shade-rgb: 0, 0, 0;--shade-strength: 1;--text-scale-body: 1;font-family:var(--font-ui);line-height:1.5;font-weight:400;color-scheme:dark;color:var(--color-text);background-color:var(--color-bg);--footer-height: 30px;--topbar-height: 0px;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:root{--scene-backdrop: repeating-linear-gradient(45deg, #0c1019 0, #0c1019 10px, #0b0f17 10px, #0b0f17 20px);--scene-bg: #0b0f17;--scene-grid: #252a33;--schematic-stroke: #a8b8c8;--schematic-stroke-dim: #4d5f70;--schematic-label: #8fb0c8;--schematic-value-label: #7a8ea0;--schematic-pin-label: #9fb4c6;--schematic-box-tint-rgb: 143, 176, 200;--schematic-body-fill: #0b0f18;--schematic-icon-fill: #0d1018;--schematic-readout-fill: #05070b;--schematic-scope-u: #00d060;--schematic-scope-i: #d08020;--schematic-wire: #8b95a7;--schematic-terminal-fill: #050608;--schematic-terminal-stroke: #6b7280;--schematic-flow-core: #ffe1da;--schematic-flow-mid: #ff5a45;--schematic-flow-edge: #e8391f;--schematic-flow-electron-core: #eaf6ff;--schematic-flow-electron-mid: #4fd2ff;--schematic-flow-electron-edge: #1f9fd0;--schematic-flow-neutral-core: #ffffff;--schematic-flow-neutral-mid: #f4f7fb;--schematic-flow-neutral-edge: #d5dde9;--schematic-analyzer-1: #38bdf8;--schematic-analyzer-2: #a78bfa;--schematic-analyzer-3: #34d399;--schematic-analyzer-4: #fbbf24;--schematic-analyzer-5: #f472b6;--schematic-analyzer-status: #fbbf24;--particle-pipe-fill: var(--color-surface-elevated);--particle-pipe-wall: var(--color-border);--particle-lattice-rgb: 200, 200, 200;--particle-outline-rgb: 255, 255, 255;--particle-plate-rgb: 0, 0, 0;--particle-arrow-force: #f5a623;--particle-arrow-velocity: #50d080;--particle-efield-arrow: #ffd34d;--particle-ammeter: #00d4ff;--particle-density-meter: #b07cff;--particle-bfield: #5fd39b;--particle-capacitor-plate: #00d4aa;--particle-switch-open: #50c878;--particle-valve-arrow: #f5a623;--particle-pump-neg: #2a4a8a;--particle-pump-pos: #8a2a2a;--particle-neutral-label: rgba(180, 180, 180, .6);--particle-hint: rgba(180, 180, 180, .65);--scene-handle: #00d4aa;--scene-ink-rgb: 255, 255, 255;--scene-face-rgb: 10, 14, 22;--em-arrow-weak-rgb: 100, 160, 255;--em-arrow-strong-rgb: 255, 240, 255;--em-field-line: #4dff88;--em-force: #ffb000;--em-torque: #c08bff;--em-neutral-rgb: 220, 220, 220;--em-coil-rgb: 120, 200, 160;--em-coil-label: rgba(180, 240, 205, .97);--em-sparkline: rgba(120, 220, 160, .95)}:root{--skilltree-bg: radial-gradient(circle at top left, #202636, #11141d);--skilltree-node-fill: #0e151f;--skilltree-node-fill-locked: #0a0e15;--skilltree-node-border: #2a4055;--skilltree-node-border-locked: #1a2535;--skilltree-ring-track: #1a2535;--skilltree-locked-veil: rgba(5, 8, 14, .6);--skilltree-lock: #3a4d60;--skilltree-edge-faint: #2a3340;--skilltree-admin: #f59e0b}:root:has(.app-topbar){--topbar-height: 22px}[data-text-scale="0"]{--text-scale-body: .85}[data-text-scale="2"]{--text-scale-body: 1.15}[data-text-scale="3"]{--text-scale-body: 1.3}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at top,var(--color-body-gradient-mid) 0,var(--color-bg) 55%);color:var(--color-text)}*{scrollbar-width:thin;scrollbar-color:var(--color-accent-glow) transparent}*::-webkit-scrollbar{width:6px;height:6px}*::-webkit-scrollbar-track{background:transparent}*::-webkit-scrollbar-thumb{background:var(--color-accent-glow);border-radius:3px}*::-webkit-scrollbar-thumb:hover{background:var(--color-accent)}a{font-weight:500;color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}button{border-radius:2px;border:1px solid var(--color-border);padding:.5rem 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label:hover{color:var(--color-text)}.modal-overlay{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:var(--color-modal-backdrop);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-card{width:100%;max-width:420px;padding:1.75rem 1.5rem;background:var(--color-surface-elevated);border:1px solid var(--color-border);border-radius:10px;box-shadow:0 20px 50px rgba(var(--color-shade-rgb),calc(.5 * var(--shade-strength)))}.modal-title{margin:0 0 .5rem;font-size:1.2rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--color-text)}.modal-description{margin:0 0 1.25rem;font-size:.9rem;line-height:1.5;color:var(--color-text-muted)}.modal-form{display:flex;flex-direction:column;gap:1rem}.modal-label{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}.modal-input{width:100%;padding:.65rem .9rem;font-size:1rem;font-family:var(--font-ui);color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:4px;transition:border-color .15s ease,box-shadow .15s ease}.modal-input::placeholder{color:var(--color-text-muted);opacity:.8}.modal-input:hover{border-color:var(--color-border)}.modal-input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 2px var(--color-accent-glow)}.modal-input:disabled{opacity:.6;cursor:not-allowed}.modal-actions{display:flex;gap:.75rem;justify-content:flex-end;margin-top:.25rem}.modal-button{min-width:5rem}.modal-button-primary{border-color:var(--color-accent);background:linear-gradient(to bottom,var(--color-accent-soft),transparent);color:var(--color-accent)}.modal-button-primary:hover:not(:disabled){box-shadow:0 0 0 1px var(--color-accent)}.modal-button-secondary:hover:not(:disabled){border-color:var(--color-text-muted);color:var(--color-text)}.modal-button-danger{border-color:var(--color-danger);background:linear-gradient(to bottom,rgba(255,77,107,.12),transparent);color:var(--color-danger)}.modal-button-danger:hover:not(:disabled){box-shadow:0 0 0 1px var(--color-danger)}@keyframes draw-edge{0%{stroke-dashoffset:1}to{stroke-dashoffset:0}}.skill-tree-edge-draw{stroke-dashoffset:1;animation:draw-edge .65s ease-out forwards}@keyframes tour-drop-zone-pulse{0%,to{box-shadow:0 0 0 2px rgba(var(--color-accent-rgb),.9),0 0 14px 3px rgba(var(--color-accent-rgb),.55);background:rgba(var(--color-accent-rgb),.16)}50%{box-shadow:0 0 0 3px rgba(var(--color-accent-rgb),1),0 0 26px 8px rgba(var(--color-accent-rgb),.85);background:rgba(var(--color-accent-rgb),.32)}}.tour-drop-zone{border:3px dashed var(--color-accent);border-radius:4px;box-sizing:border-box;animation:tour-drop-zone-pulse 1.1s ease-in-out infinite}[data-authoring-controls=on] [data-control-id]{outline:1px dashed var(--color-accent);outline-offset:1px;cursor:context-menu;position:relative}[data-authoring-controls=on] [data-control-id]:after{content:"";position:absolute;top:-3px;right:-3px;width:6px;height:6px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 0 1px var(--color-bg);pointer-events:none;z-index:3}[data-authoring-controls=on] [data-control-id][data-control-container]{cursor:pointer}[data-authoring-controls=on] [data-control-id][data-control-override=true]{outline:2px solid var(--color-warning, #e0a020)}[data-authoring-controls=on] [data-control-id][data-control-override=true]:after{background:var(--color-warning, #e0a020)}@keyframes control-highlight-pulse{0%,to{box-shadow:0 0 rgba(var(--color-accent-rgb),0)}30%{box-shadow:0 0 0 3px rgba(var(--color-accent-rgb),.9),0 0 12px 2px rgba(var(--color-accent-rgb),.6)}}.control-highlight-pulse{animation:control-highlight-pulse 1.2s ease-in-out;border-radius:3px}@keyframes ring-pulse{0%,to{filter:drop-shadow(0 0 2px rgba(var(--color-accent-rgb),.3))}50%{filter:drop-shadow(0 0 6px rgba(var(--color-accent-rgb),.7))}}.skill-tree-ring-active{animation:ring-pulse 2.4s ease-in-out infinite}@keyframes streak-glow{0%{box-shadow:0 0 #f0c04000}30%{box-shadow:0 0 14px 5px #f0c040bf}to{box-shadow:0 0 4px 1px #f0c04000}}.streak-glow-overlay{animation:streak-glow .7s ease-out forwards;pointer-events:none}@keyframes xp-fill-glow{0%{box-shadow:0 0 0 0 currentColor}35%{box-shadow:0 0 16px 4px currentColor}to{box-shadow:0 0 3px 0 currentColor}}.xp-fill--animating{animation:xp-fill-glow 1.8s ease-out}.xp-fill-sparks{position:absolute;top:50%;width:0;height:0;transition:left 1.8s ease;pointer-events:none}@keyframes xp-spark-fly{0%{opacity:1;transform:rotate(var(--spark-angle)) translate(0) scale(1)}to{opacity:0;transform:rotate(var(--spark-angle)) translate(var(--spark-dist)) scale(.4)}}.xp-spark{position:absolute;left:-2px;top:-2px;width:4px;height:4px;border-radius:50%;background:var(--xp-spark-color, var(--color-accent));box-shadow:0 0 6px var(--xp-spark-color, var(--color-accent));opacity:0;animation:xp-spark-fly .9s ease-out forwards}@media(prefers-reduced-motion:reduce){.xp-fill--animating,.xp-spark{animation:none}}@keyframes skill-mastered-pop{0%{transform:scale(.7);opacity:0}60%{transform:scale(1.05);opacity:1}to{transform:scale(1);opacity:1}}.skill-mastered-card{animation:skill-mastered-pop .45s cubic-bezier(.34,1.56,.64,1) both}.skill-mastered-hero{position:relative;text-align:center;padding:8px 0 4px}.skill-mastered-name{font-size:1.3rem;font-weight:700;color:var(--color-success);margin-top:.3rem}.skill-mastered-burst{position:absolute;left:50%;top:50%;width:0;height:0}@keyframes skill-mastered-spark-fly{0%{opacity:1;transform:rotate(var(--spark-angle)) translate(0) scale(1)}70%{opacity:1}to{opacity:0;transform:rotate(var(--spark-angle)) translate(var(--spark-dist)) scale(.3)}}.skill-mastered-spark{position:absolute;left:-2.5px;top:-2.5px;width:5px;height:5px;border-radius:50%;background:var(--color-success);box-shadow:0 0 8px var(--color-success);opacity:0;animation:skill-mastered-spark-fly .9s ease-out forwards}.skill-mastered-unlock-list{margin:.4rem 0 0;padding-left:1.2rem;color:var(--color-text);font-size:.9rem;line-height:1.6}@media(prefers-reduced-motion:reduce){.skill-mastered-card,.skill-mastered-spark{animation:none}}.flashcard{position:relative;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);color:var(--color-text);padding:10px 12px;text-align:left;font-family:var(--font-ui)}.flashcard--tile,.flashcard--locked{width:168px;height:128px;display:flex;flex-direction:column;gap:6px}.flashcard--locked{color:var(--color-text-muted);background:var(--color-surface-elevated)}.flashcard--full{width:100%}.flashcard--clickable{cursor:pointer;transition:border-color .15s ease,box-shadow .15s ease}.flashcard--clickable:hover,.flashcard--clickable:focus-visible{border-color:var(--color-accent);box-shadow:0 0 0 1px var(--color-accent-glow);outline:none}.flashcard-type-marker{position:absolute;top:8px;right:10px;font-size:.85rem;color:var(--color-accent);opacity:.85}.flashcard-new-badge{position:absolute;top:8px;left:10px;font-size:.62rem;letter-spacing:.06em;font-weight:700;color:var(--color-accent);background:var(--color-accent-soft);border-radius:3px;padding:1px 5px}.flashcard-title{font-weight:600;font-size:.92rem;line-height:1.25;padding-right:1.1rem}.flashcard--tile .flashcard-title,.flashcard--locked 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