.skill-tree-shell{--skill-font-sans: "Avenir Next", "Trebuchet MS", sans-serif;--skill-font-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;display:grid;gap:.9rem;border-radius:1.15rem;border:1px solid var(--skill-shell-border);background:var(--skill-shell-bg);padding:1rem}.skill-tree-shell-light{--skill-shell-border: #e6dece;--skill-shell-bg: radial-gradient( circle at 18% 10%, rgba(89, 146, 57, .15), transparent 38% ), radial-gradient( circle at 96% 2%, rgba(255, 224, 170, .22), transparent 34% ), linear-gradient(160deg, #f9f6ef 0%, #f2ebde 100%);--skill-kicker-color: #586575;--skill-title-color: #1d2939;--skill-count-border: #d8cdb8;--skill-count-bg: rgba(255, 253, 248, .9);--skill-count-color: #355f3c;--skill-progress-border: #d8cdb8;--skill-progress-bg: rgba(255, 253, 248, .84);--skill-progress-track: #e8dece;--skill-progress-fill: linear-gradient(90deg, #6ac88f 0%, #2f8a57 100%);--skill-progress-label: #4e5d6f;--skill-progress-value: #235138;--skill-progress-caption: #556374;--skill-progress-milestone-border: #7fbb93;--skill-progress-milestone-bg: rgba(219, 244, 227, .86);--skill-progress-milestone-text: #1f5a3b;--skill-flow-pill-border: #d3c7b2;--skill-flow-pill-bg: rgba(255, 251, 243, .9);--skill-flow-pill-value: #214f35;--skill-flow-pill-label: #4f6072;--skill-legend-bg: rgba(255, 250, 242, .9);--skill-legend-border: #d3c7b2;--skill-legend-title: #4d6076;--skill-legend-item: #2f4054;--skill-legend-trigger-bg: rgba(255, 251, 243, .92);--skill-legend-trigger-border: #d3c7b2;--skill-legend-trigger-text: #35506a;--skill-focus-edge: #2f8a57;--skill-focus-edge-gradient-start: #8feac4;--skill-focus-edge-gradient-end: #3ea977;--skill-focus-edge-glow: rgba(66, 178, 133, .5);--skill-focus-node-ring: rgba(47, 138, 87, .72);--skill-node-glint: rgba(255, 255, 255, .34);--skill-dim-opacity: .62;--skill-toolbar-border: #dfd4c1;--skill-toolbar-bg: linear-gradient( 180deg, rgba(255, 253, 248, .9) 0%, rgba(245, 236, 224, .96) 100% );--skill-label-color: #4e5d6f;--skill-input-border: #c9bb9f;--skill-input-bg: #fffdf8;--skill-input-color: #1f2b3a;--skill-input-placeholder: #778392;--skill-input-focus: rgba(31, 122, 74, .4);--skill-button-border: #2f8a57;--skill-button-bg: linear-gradient(180deg, #4aae74 0%, #2f8a58 100%);--skill-button-color: #f6fff9;--skill-flow-border: #d6cab5;--skill-flow-bg: radial-gradient( circle at 50% -10%, rgba(109, 172, 79, .14), transparent 40% ), linear-gradient(180deg, #f7f1e5 0%, #efe7d8 100%);--skill-controls-border: #d0c2ac;--skill-controls-bg: #fffaf1;--skill-controls-text: #2a3748;--skill-controls-hover: #f0e6d3;--skill-controls-shadow: 0 10px 22px rgba(24, 39, 28, .14);--skill-attribution-bg: rgba(248, 240, 226, .85);--skill-attribution-text: #5b6878;--skill-message-border: #d8c9b3;--skill-message-bg: #fbf5ea;--skill-message-text: #2a3748;--skill-editor-border: #dccfba;--skill-editor-bg: linear-gradient( 180deg, rgba(255, 253, 248, .92) 0%, rgba(245, 235, 223, .95) 100% );--skill-editor-title: #1d2939;--skill-editor-subtitle: #556374;--skill-divider: #d9cdb9;--skill-editor-message-border: #d5c7b1;--skill-editor-message-bg: #fbf5ea;--skill-editor-message-text: #2d3c4f;--skill-secondary-button-border: #4ba570;--skill-secondary-button-bg: linear-gradient(180deg, #f5fbf7 0%, #e5f3eb 100%);--skill-secondary-button-color: #2f7f4f;--skill-link-row-border: #d8cbb7;--skill-link-row-bg: rgba(255, 253, 248, .78);--skill-link-name: #2d3f54;--skill-mini-button-border: #4ba570;--skill-mini-button-bg: linear-gradient(180deg, #f5fbf7 0%, #e5f3eb 100%);--skill-mini-button-color: #2f7f4f;--skill-mini-danger-border: #cf8a88;--skill-mini-danger-bg: linear-gradient(180deg, #fff1f0 0%, #f7dcda 100%);--skill-mini-danger-color: #7f2321;--skill-node-description: #4d5b6b;--skill-node-description-muted: #748394;--skill-node-difficulty-bg: rgba(41, 59, 80, .13);--skill-node-difficulty-text: #2a415a;--skill-node-difficulty-label: #617285;--skill-node-difficulty-dot: rgba(65, 83, 102, .28);--skill-node-difficulty-dot-filled: #d2a14a;--skill-node-shadow: 0 10px 22px rgba(35, 48, 35, .15);--skill-node-meta-border: rgba(35, 48, 35, .14);--skill-node-meta-bg: rgba(255, 255, 255, .55);--skill-handle-fill: #2f8a57;--skill-handle-border: #fffdf8}.skill-tree-shell-dark{--skill-shell-border: #2a3846;--skill-shell-bg: radial-gradient( circle at 18% 10%, rgba(87, 182, 125, .2), transparent 38% ), radial-gradient(circle at 96% 2%, rgba(133, 108, 64, .2), transparent 34%), linear-gradient(160deg, #0f171e 0%, #0b1218 100%);--skill-kicker-color: #9db0c2;--skill-title-color: #e8eff7;--skill-count-border: #395063;--skill-count-bg: rgba(19, 30, 39, .88);--skill-count-color: #9fd6b6;--skill-progress-border: #395063;--skill-progress-bg: rgba(19, 30, 39, .86);--skill-progress-track: #243645;--skill-progress-fill: linear-gradient(90deg, #71d096 0%, #47a56f 100%);--skill-progress-label: #c0cedc;--skill-progress-value: #a9dfc1;--skill-progress-caption: #9eb2c5;--skill-progress-milestone-border: #4e936f;--skill-progress-milestone-bg: rgba(31, 62, 47, .88);--skill-progress-milestone-text: #ade1c5;--skill-flow-pill-border: #3a5063;--skill-flow-pill-bg: rgba(17, 28, 37, .88);--skill-flow-pill-value: #aee2c5;--skill-flow-pill-label: #adc0d2;--skill-legend-bg: rgba(15, 25, 34, .9);--skill-legend-border: #3d5568;--skill-legend-title: #b6cbde;--skill-legend-item: #d7e5f3;--skill-legend-trigger-bg: rgba(17, 28, 37, .92);--skill-legend-trigger-border: #3d5568;--skill-legend-trigger-text: #b9d0e4;--skill-focus-edge: #71d096;--skill-focus-edge-gradient-start: #b0f4d3;--skill-focus-edge-gradient-end: #65cc9b;--skill-focus-edge-glow: rgba(113, 208, 150, .56);--skill-focus-node-ring: rgba(113, 208, 150, .75);--skill-node-glint: rgba(169, 214, 255, .2);--skill-dim-opacity: .56;--skill-toolbar-border: #314353;--skill-toolbar-bg: linear-gradient( 180deg, rgba(22, 34, 43, .86) 0%, rgba(15, 23, 31, .95) 100% );--skill-label-color: #c0cedc;--skill-input-border: #3a5063;--skill-input-bg: #111a22;--skill-input-color: #e9f1fa;--skill-input-placeholder: #8599ac;--skill-input-focus: rgba(87, 182, 125, .5);--skill-button-border: #47a56f;--skill-button-bg: linear-gradient(180deg, #56b67e 0%, #3a9b66 100%);--skill-button-color: #f4fff8;--skill-flow-border: #314253;--skill-flow-bg: radial-gradient( circle at 50% -10%, rgba(87, 182, 125, .18), transparent 40% ), linear-gradient(180deg, #121c24 0%, #0f171f 100%);--skill-controls-border: #395064;--skill-controls-bg: #15212b;--skill-controls-text: #d3deea;--skill-controls-hover: #1d2e3b;--skill-controls-shadow: 0 10px 24px rgba(0, 0, 0, .36);--skill-attribution-bg: rgba(15, 23, 31, .7);--skill-attribution-text: #9ab0c6;--skill-message-border: #3b5165;--skill-message-bg: rgba(20, 31, 39, .9);--skill-message-text: #d3e0ee;--skill-editor-border: #324557;--skill-editor-bg: linear-gradient( 180deg, rgba(22, 33, 43, .92) 0%, rgba(16, 25, 33, .97) 100% );--skill-editor-title: #e2edf8;--skill-editor-subtitle: #9eb2c5;--skill-divider: #3b4f61;--skill-editor-message-border: #41586d;--skill-editor-message-bg: rgba(22, 34, 45, .9);--skill-editor-message-text: #d3e1ee;--skill-secondary-button-border: #5cb885;--skill-secondary-button-bg: linear-gradient(180deg, #233a2f 0%, #1a2c23 100%);--skill-secondary-button-color: #a9dfc1;--skill-link-row-border: #43586b;--skill-link-row-bg: rgba(21, 33, 43, .82);--skill-link-name: #d9e8f7;--skill-mini-button-border: #5cb885;--skill-mini-button-bg: linear-gradient(180deg, #233a2f 0%, #1a2c23 100%);--skill-mini-button-color: #a9dfc1;--skill-mini-danger-border: #8f5653;--skill-mini-danger-bg: linear-gradient(180deg, #4b2a29 0%, #3d201f 100%);--skill-mini-danger-color: #ffd5d2;--skill-node-description: #c1d2e3;--skill-node-description-muted: #95aac0;--skill-node-difficulty-bg: rgba(236, 245, 255, .14);--skill-node-difficulty-text: #e3edf8;--skill-node-difficulty-label: #a8bbce;--skill-node-difficulty-dot: rgba(198, 216, 234, .22);--skill-node-difficulty-dot-filled: #edc875;--skill-node-shadow: 0 10px 24px rgba(0, 0, 0, .35);--skill-node-meta-border: rgba(219, 232, 245, .14);--skill-node-meta-bg: rgba(0, 0, 0, .24);--skill-handle-fill: #56b67e;--skill-handle-border: #111a22}.skill-tree-topbar{display:flex;align-items:baseline;justify-content:space-between;gap:.75rem}.skill-tree-topbar-meta{display:flex;align-items:center;justify-content:flex-end;gap:.45rem;flex-wrap:wrap}.skill-tree-kicker{margin:0;color:var(--skill-kicker-color);font-family:var(--skill-font-sans);font-size:.72rem;font-weight:500;letter-spacing:.07em;text-transform:uppercase}.skill-tree-title{margin:.15rem 0 0;color:var(--skill-title-color);font-family:var(--skill-font-serif);font-size:1.5rem;font-weight:700;line-height:1.08;letter-spacing:-.01em}.skill-tree-count{border:1px solid var(--skill-count-border);background:var(--skill-count-bg);border-radius:999px;padding:.32rem .75rem;color:var(--skill-count-color);font-family:var(--skill-font-sans);font-size:.75rem;font-weight:600;letter-spacing:.02em;text-transform:none;white-space:nowrap}.skill-tree-progress{border:1px solid var(--skill-progress-border);border-radius:.82rem;background:var(--skill-progress-bg);padding:.62rem .74rem;display:grid;gap:.4rem}.skill-tree-progress-header{display:flex;align-items:baseline;justify-content:space-between;gap:.6rem}.skill-tree-progress-label{margin:0;color:var(--skill-progress-label);font-family:var(--skill-font-sans);font-size:.74rem;font-weight:600;letter-spacing:.02em;text-transform:uppercase}.skill-tree-progress-value{margin:0;color:var(--skill-progress-value);font-family:var(--skill-font-sans);font-size:.98rem;font-weight:700;letter-spacing:.01em;line-height:1}.skill-tree-progress-track{height:.5rem;border-radius:999px;background:var(--skill-progress-track);overflow:hidden}.skill-tree-progress-fill{display:block;height:100%;border-radius:inherit;background:var(--skill-progress-fill);transition:width .22s ease}.skill-tree-progress-caption{margin:0;color:var(--skill-progress-caption);font-family:var(--skill-font-sans);font-size:.75rem;line-height:1.25}.skill-tree-progress-milestone{margin:0;border:1px solid var(--skill-progress-milestone-border);border-radius:.54rem;background:var(--skill-progress-milestone-bg);color:var(--skill-progress-milestone-text);font-family:var(--skill-font-sans);font-size:.74rem;font-weight:700;letter-spacing:.01em;padding:.32rem .46rem;width:fit-content;animation:skill-milestone-pop .76s cubic-bezier(.2,.68,.21,1)}.skill-tree-toolbar{display:grid;gap:.65rem;border:1px solid var(--skill-toolbar-border);border-radius:.85rem;background:var(--skill-toolbar-bg);padding:.75rem}.skill-tree-toolbar-row{display:flex;flex-wrap:wrap;align-items:end;gap:.5rem}.skill-tree-toolbar-row-create{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;justify-content:initial}.skill-tree-toolbar-row-export{justify-content:flex-end}.skill-tree-add-skill-wrap{min-width:0}.skill-tree-toolbar-row-create-actions{display:flex;flex-wrap:wrap;align-items:end;justify-content:flex-end;gap:.5rem}.skill-tree-pro-upsell{border:1px solid var(--skill-editor-message-border);border-radius:.65rem;background:var(--skill-editor-message-bg);color:var(--skill-editor-message-text);font-family:var(--skill-font-sans);font-size:.78rem;line-height:1.4;padding:.52rem .66rem}.skill-tree-toggle{display:inline-flex;align-items:center;gap:.45rem;border:1px solid var(--skill-secondary-button-border);background:var(--skill-secondary-button-bg);color:var(--skill-secondary-button-color);border-radius:.6rem;padding:.43rem .58rem;font-family:var(--skill-font-sans);font-size:.76rem;font-weight:600;letter-spacing:.01em;text-transform:none;-webkit-user-select:none;user-select:none;min-height:42px}.skill-tree-toggle-input{width:14px;height:14px;accent-color:#2f8a57}.skill-tree-input-wrap{display:grid;gap:.3rem}.skill-tree-label{color:var(--skill-label-color);font-family:var(--skill-font-sans);font-size:.78rem;font-weight:500;letter-spacing:.02em;text-transform:none}.skill-tree-resource-list{margin:0;padding-left:1.1rem;list-style:disc;font-size:.8rem;line-height:1.5}.skill-tree-resource-list li{margin-bottom:.25rem}.skill-tree-resource-link{color:var(--skill-input-color);text-decoration:none}.skill-tree-resource-link:hover{color:#2f8a57;text-decoration:underline}.skill-tree-input,.skill-tree-textarea,.skill-tree-select{width:100%;border:1px solid var(--skill-input-border);border-radius:.65rem;background:var(--skill-input-bg);color:var(--skill-input-color);font-family:var(--skill-font-sans);font-size:.95rem;padding:.58rem .72rem}.skill-tree-input::placeholder,.skill-tree-textarea::placeholder{color:var(--skill-input-placeholder)}.skill-tree-textarea{resize:vertical;min-height:92px}.skill-tree-input:focus,.skill-tree-textarea:focus,.skill-tree-select:focus{outline:2px solid var(--skill-input-focus);outline-offset:1px}.skill-tree-button{border:1px solid var(--skill-button-border);border-radius:.65rem;background:var(--skill-button-bg);color:var(--skill-button-color);font-family:var(--skill-font-sans);font-size:.85rem;font-weight:700;letter-spacing:.01em;padding:.6rem .95rem;text-transform:none;cursor:pointer;transition:transform .16s ease,filter .16s ease;min-height:42px}.skill-tree-button:hover:not(:disabled){filter:brightness(1.05);transform:translateY(-1px)}.skill-tree-button:disabled{opacity:.55;cursor:not-allowed}.skill-tree-button-row{display:flex;gap:.5rem}.skill-tree-button-row .skill-tree-button{flex:1}.skill-tree-button-secondary{border:1px solid var(--skill-secondary-button-border);background:var(--skill-secondary-button-bg);color:var(--skill-secondary-button-color)}.skill-tree-button-danger{border:1px solid var(--skill-mini-danger-border);background:var(--skill-mini-danger-bg);color:var(--skill-mini-danger-color)}.skill-tree-link-hint{margin-top:-.1rem;color:var(--skill-editor-subtitle);font-family:var(--skill-font-sans);font-size:.78rem}.skill-tree-toolbar-demo .skill-tree-link-hint{align-self:center;margin-top:0}.skill-tree-workspace{display:grid;grid-template-columns:minmax(0,1fr) 0px;gap:.85rem;align-items:stretch;transition:grid-template-columns .22s ease}.skill-tree-workspace-editor-open{grid-template-columns:minmax(0,1fr) clamp(300px,30vw,360px)}.skill-tree-flow{position:relative;height:78vh;min-height:520px;border:1px solid var(--skill-flow-border);border-radius:.9rem;overflow:hidden;background:var(--skill-flow-bg)}.skill-tree-flow-progress-pill{position:absolute;top:.72rem;right:.72rem;width:fit-content;z-index:7;border:1px solid var(--skill-flow-pill-border);border-radius:999px;background:var(--skill-flow-pill-bg);box-shadow:0 6px 16px #11172129;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);padding:.28rem .52rem;display:inline-flex;align-items:baseline;gap:.36rem;pointer-events:none;opacity:1;transition:opacity .22s ease}.skill-tree-flow-progress-pill-hidden{opacity:0}.skill-tree-flow-legend-tooltip{position:absolute;right:.72rem;bottom:calc(1.24rem + 150px);z-index:8;pointer-events:auto}.skill-tree-flow-legend-trigger{border:1px solid var(--skill-legend-trigger-border);border-radius:999px;background:var(--skill-legend-trigger-bg);color:var(--skill-legend-trigger-text);box-shadow:0 6px 16px #0c121b29;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);font-family:var(--skill-font-sans);font-size:.68rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:.26rem .52rem;cursor:help}.skill-tree-flow-minimap-legend{position:absolute;right:0;bottom:calc(100% + .42rem);border:1px solid var(--skill-legend-border);border-radius:.6rem;background:var(--skill-legend-bg);box-shadow:0 8px 22px #0c121b2e;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);padding:.42rem .46rem;display:grid;gap:.32rem;width:196px;opacity:0;transform:translateY(6px) scale(.98);transform-origin:100% 100%;visibility:hidden;transition:opacity .18s ease,transform .18s ease,visibility .18s step-end;pointer-events:none}.skill-tree-flow-legend-tooltip:hover .skill-tree-flow-minimap-legend,.skill-tree-flow-legend-tooltip:focus-within .skill-tree-flow-minimap-legend{opacity:1;transform:translateY(0) scale(1);visibility:visible;transition:opacity .19s ease,transform .19s ease,visibility 0ms step-start}.skill-tree-flow-minimap-legend-title{margin:0;color:var(--skill-legend-title);font-family:var(--skill-font-sans);font-size:.62rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.skill-tree-flow-minimap-legend-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.22rem .38rem}.skill-tree-flow-minimap-legend-item{display:inline-flex;align-items:center;gap:.28rem;color:var(--skill-legend-item);font-family:var(--skill-font-sans);font-size:.62rem;font-weight:600;line-height:1.2;letter-spacing:.01em}.skill-tree-flow-minimap-legend-dot{width:8px;height:8px;border-radius:999px;box-shadow:0 0 0 1px #ffffff5c}.skill-tree-flow-progress-pill-value{color:var(--skill-flow-pill-value);font-family:var(--skill-font-sans);font-size:.76rem;line-height:1;font-weight:700;letter-spacing:.01em}.skill-tree-flow-progress-pill-label{color:var(--skill-flow-pill-label);font-family:var(--skill-font-sans);font-size:.68rem;line-height:1;font-weight:600;letter-spacing:.02em;text-transform:uppercase}.skill-tree-flow .react-flow{position:relative;z-index:3}.skill-tree-flow .react-flow__controls{border:1px solid var(--skill-controls-border);box-shadow:var(--skill-controls-shadow)}.skill-tree-flow .react-flow__controls-button{background:var(--skill-controls-bg);color:var(--skill-controls-text);border-bottom:1px solid var(--skill-controls-border)}.skill-tree-flow .react-flow__controls-button:hover{background:var(--skill-controls-hover)}.skill-tree-flow .react-flow__edges{z-index:1}.skill-tree-flow .react-flow__nodes{z-index:4}.skill-tree-flow .react-flow__node{transition:opacity .24s ease}.skill-tree-flow .react-flow__edge-path{stroke-linecap:round;stroke-linejoin:round;transition:opacity .24s ease,stroke .24s ease,stroke-width .22s ease}.skill-tree-flow .react-flow__attribution{background:var(--skill-attribution-bg);color:var(--skill-attribution-text);display:none}.skill-tree-flow .react-flow__node.selected .skill-node{box-shadow:0 0 0 2px var(--skill-handle-fill),var(--skill-node-shadow)}.skill-tree-flow .react-flow__node.skill-tree-node-dimmed{opacity:var(--skill-dim-opacity)}.skill-tree-flow .react-flow__node.skill-tree-node-focused{opacity:1}.skill-tree-flow .react-flow__node.skill-tree-node-focused.skill-tree-node-focus-anchor .skill-node{box-shadow:0 0 0 2px var(--skill-focus-node-ring),var(--skill-node-shadow)}.skill-tree-flow .react-flow__edge.skill-tree-edge-dimmed .react-flow__edge-path{opacity:var(--skill-dim-opacity)}.skill-tree-flow .react-flow__edge.skill-tree-edge-focused .react-flow__edge-path{stroke:var(--skill-focus-edge);stroke-width:3.05px;filter:drop-shadow(0 0 2px 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