.skill-builder{padding-block:36px 64px;--sb-surface:#1e1f1d;--sb-border:color-mix(in oklab,var(--line) 72%,transparent)}
.skill-builder [hidden]{display:none!important}.skill-builder button,.skill-builder input,.skill-builder select{font:inherit}.skill-builder .sp-btn{min-height:44px;height:auto;padding:11px 16px;border-color:var(--sb-border);background:var(--bg-sunken);color:var(--text-soft);font-size:13px;box-shadow:none;gap:8px;white-space:normal}.skill-builder .sp-btn-primary{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}.skill-builder .sp-btn:hover:not(:disabled){border-color:var(--brand);color:var(--text)}.skill-builder .sp-btn-primary:hover:not(:disabled){color:var(--on-brand);filter:brightness(1.05)}.skill-builder button:disabled{opacity:.4;cursor:not-allowed}.skill-builder :is(button,a,input,select):focus-visible{outline:2px solid var(--brand);outline-offset:3px}.skill-builder svg{width:18px;height:18px;flex-shrink:0}.skill-builder .sp-card{border:1px solid var(--sb-border);border-radius:14px;background:var(--sb-surface);box-shadow:none;min-width:0}.skill-builder .sp-input,.skill-builder .sp-select{width:100%;height:44px;min-height:44px;color:var(--text);background:var(--bg-sunken);border-color:var(--sb-border);border-radius:8px;box-shadow:none;font-size:14px;padding-inline:12px}.skill-builder .sp-badge{background:var(--bg-sunken);color:var(--text-muted);border:1px solid var(--sb-border);font:11px var(--font-mono,monospace);padding:5px 8px;height:auto;white-space:nowrap}.sb-eyebrow{font:11px var(--font-mono,monospace);letter-spacing:.1em;color:var(--brand);line-height:1.5}.sb-hero{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:28px}.sb-back{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:18px}.sb-hero h1{font-size:clamp(26px,3vw,38px);line-height:1.2;margin:8px 0 10px}.sb-hero p{color:var(--text-muted);margin:0;font-size:15px}.sb-mark{display:flex;flex-direction:column;align-items:center;color:var(--brand);border:1px solid var(--sb-border);padding:16px 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small{color:var(--text-muted);font-size:12px}.sb-stats .sp-progress{height:4px;width:100%;margin-top:9px;color:var(--brand);background:var(--bg-sunken)}.sb-workspace{display:grid;grid-template-columns:240px minmax(0,1fr) 290px;align-items:start;gap:18px}.sb-config{padding:22px 18px}.sb-panel-title h2{margin:7px 0 18px;font-size:17px}.sb-races{display:grid;grid-template-columns:1fr 1fr;gap:8px}.sb-races .sp-btn{display:flex;flex-direction:column;gap:2px}.sb-races b{font:18px var(--font-mono,monospace);color:var(--brand)}.sb-races span{font-size:12px}.skill-builder [aria-pressed=true]{border-color:var(--brand);background:var(--brand-tint);color:var(--text)}.sb-settings{display:flex;flex-direction:column;gap:8px;margin-top:20px}.sb-settings label{font-size:12px;color:var(--text-soft);margin-top:5px}.sb-settings small{font-size:11px;line-height:1.65;color:var(--text-muted)}.sb-tree-title{border-top:1px solid var(--sb-border);margin-top:22px;padding-top:20px}.sb-trees{display:grid;gap:7px}.sb-tree-button{display:flex;align-items:center;gap:9px;min-height:54px;padding:8px;background:var(--bg-sunken);border:1px solid var(--sb-border);border-radius:9px;color:var(--text-soft);text-align:left;cursor:pointer;transition:border-color .15s}.sb-tree-button:hover{border-color:var(--brand)}.sb-tree-button img{object-fit:contain}.sb-tree-button strong{font-size:12px;flex:1}.sb-tree-button .sp-badge{font-size:9px;padding:4px}.sb-reset{width:100%;margin-top:18px}.sb-catalog{overflow:hidden}.sb-tree-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:22px 22px 12px}.sb-tree-identity{display:flex;align-items:center;gap:12px;min-width:0}.sb-tree-identity img{object-fit:contain}.sb-tree-identity h2{font-size:24px;margin:5px 0 0}.sb-mastery-level{font:11px var(--font-mono,monospace);color:var(--text-muted);display:flex;align-items:center;gap:8px}.skill-builder .sb-mastery-level .sp-input{width:76px;text-align:center;color:var(--brand);font-weight:700}.sb-tree-help{margin:0;padding:0 22px 20px;font-size:12px;line-height:1.6;color:var(--text-muted)}.sb-filter{display:flex;align-items:end;gap:10px;border-top:1px solid var(--sb-border);border-bottom:1px solid var(--sb-border);padding:16px 22px;background:color-mix(in oklab,var(--bg-sunken) 50%,transparent)}.sb-search{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}.sb-search span{font-size:11px;color:var(--text-muted)}.sb-filter .sp-btn{font-size:11px;padding-inline:12px}.sb-grid{height:668px;overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line) transparent;padding:10px 22px 20px;overscroll-behavior:contain}.sb-series{border-bottom:1px solid var(--sb-border);padding:16px 0 18px}.sb-series:last-child{border-bottom:0}.sb-series-title{font:10px var(--font-mono,monospace);letter-spacing:.1em;color:var(--text-muted);margin:0 0 12px}.sb-books{display:grid;grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:10px}.sb-skill{display:flex;flex-direction:column;align-items:center;min-width:0;padding:8px 4px;border:1px solid transparent;border-radius:9px;background:transparent;color:var(--text-soft);cursor:pointer;transition:background .15s,border-color .15s}.sb-skill:hover{background:var(--bg-sunken);border-color:var(--sb-border)}.sb-book-icon{position:relative;width:50px;height:52px;display:block}.sb-book-icon img{object-fit:contain;border:1px solid var(--line);border-radius:4px}.sb-rank{position:absolute;bottom:-3px;left:50%;transform:translateX(-50%);border:1px solid var(--sb-border);border-radius:4px;background:#131411;color:var(--text-muted);padding:2px 5px;font:9px var(--font-mono,monospace);white-space:nowrap}.sb-learned .sb-rank{color:var(--brand);border-color:color-mix(in oklab,var(--brand) 65%,transparent)}.sb-learned img{border-color:var(--brand)}.sb-level-locked img{filter:saturate(.3);opacity:.65}.sb-skill-name{font-size:10px;line-height:1.45;margin-top:10px;max-width:100%;overflow-wrap:anywhere;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;min-height:29px;text-align:center}.sb-catalog-foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:15px 22px;border-top:1px solid var(--sb-border);font-size:10px;color:var(--text-muted)}.sb-detail{padding:22px;position:sticky;top:100px;display:flex;flex-direction:column;gap:14px}.sb-detail h2{margin:0;font-size:17px;line-height:1.4;overflow-wrap:anywhere}.sb-detail-head{display:flex;align-items:center;gap:12px}.sb-detail-head img{flex-shrink:0;object-fit:contain}.sb-description{font-size:12px;line-height:1.8;color:var(--text-muted);margin:0;white-space:pre-line;overflow-wrap:anywhere}.sb-rank-head{display:flex;justify-content:space-between;align-items:center;font-size:12px}.sb-rank-head strong{font:17px var(--font-mono,monospace);color:var(--brand)}.sb-stepper{display:flex;align-items:center;gap:6px}.sb-stepper .sp-btn{min-width:44px;padding-inline:12px}.sb-stepper output{flex:1;font:19px var(--font-mono,monospace);text-align:center}.sb-stepper .sp-btn-primary{font-size:11px}.sb-requirements{margin:0;border-block:1px solid var(--sb-border);padding:8px 0}.sb-requirements>div{display:flex;justify-content:space-between;gap:14px;padding:7px 0;font-size:11px}.sb-requirements dt{color:var(--text-muted)}.sb-requirements dd{margin:0;font-family:var(--font-mono,monospace);text-align:right}.sb-prereq-title{font-size:12px;margin:0}.sb-prereq{display:flex;align-items:center;gap:8px;min-height:44px;border:1px solid var(--sb-border);background:var(--bg-sunken);color:var(--text-soft);padding:8px;border-radius:7px;text-align:left;cursor:pointer}.sb-prereq span{flex:1;font-size:11px}.sb-prereq strong{font:10px var(--font-mono,monospace);color:var(--brand)}.sb-muted,.sb-auto-note{font-size:11px;line-height:1.7;color:var(--text-muted);margin:0}.sb-source-code{font:9px var(--font-mono,monospace);color:var(--text-muted);overflow-wrap:anywhere}.sb-bottom{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}.sb-bottom>.sp-card{padding:24px}.sb-bottom p{font-size:12px;color:var(--text-muted);line-height:1.8;margin:8px 0}.sb-notes h2{font-size:19px;margin:8px 0 12px}.sb-notes small{font-size:11px;color:var(--text-muted);line-height:1.8}.sb-save-row{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--sb-border)}.sb-save-open{flex:1;display:flex;flex-direction:column;align-items:start;gap:4px;min-height:44px;border:0;background:none;color:var(--text);text-align:left;cursor:pointer}.sb-save-open small{font:11px var(--font-mono,monospace);color:var(--text-muted)}.sb-save-open strong{font-size:13px}.sb-status{padding:16px 0;font-size:12px;color:var(--text-muted);min-height:52px}.sb-error .sb-status{color:#f5a3a3}.sb-empty{font-size:13px;line-height:1.8;color:var(--text-muted);padding:12px 0}.sb-loading{padding:60px 24px;text-align:center;border:1px solid var(--sb-border);border-radius:12px;background:var(--sb-surface)}.sb-loading p{font-size:13px;color:var(--text-muted)}.skill-builder .sp-modal-box{background:var(--sb-surface);color:var(--text);border:1px solid var(--sb-border);width:min(480px,90vw)}.sp-modal-box h2{font-size:22px;margin-bottom:20px}.sp-modal-box label{display:block;font-size:13px;margin-bottom:8px}.sp-modal-box p{font-size:12px;color:var(--text-muted);margin-top:14px}.sp-modal-box .sp-modal-action{display:flex;gap:10px;justify-content:flex-end;margin-top:24px}
@media(min-width:1650px){.sb-workspace{grid-template-columns:260px minmax(0,1fr) 310px}.sb-grid{height:724px}.sb-books{grid-template-columns:repeat(auto-fill,minmax(80px,1fr))}}
@media(max-width:1250px){.sb-workspace{grid-template-columns:230px minmax(0,1fr)}.sb-detail{position:static;grid-column:2}.sb-config{grid-row:1 / span 2}.sb-detail:has(.sb-detail-head){display:grid;grid-template-columns:1fr 1fr;align-items:start}.sb-detail>.sb-eyebrow,.sb-detail>.sb-detail-head,.sb-detail>.sb-description{grid-column:1 / -1}.sb-detail>.sb-requirements{grid-column:2;grid-row:4 / span 4}.sb-stepper{max-width:300px}.sb-workbar{align-items:start}.sb-grid{height:600px}}
@media(max-width:760px){.skill-builder{padding-top:24px}.sb-mark{display:none}.sb-hero h1{font-size:28px}.sb-workbar{flex-direction:column;padding:14px}.sb-actions{width:100%;display:grid!important;grid-template-columns:repeat(2,1fr)}.sb-actions .sp-btn{font-size:12px}.sb-stats{gap:8px;grid-template-columns:1fr 1fr}.sb-stats .sp-card{padding:14px}.sb-stats>.sp-card:first-child{grid-column:1 / -1}.sb-stats strong{font-size:23px}.sb-workspace{grid-template-columns:minmax(0,1fr);gap:14px}.sb-config{grid-row:auto}.sb-detail{grid-column:auto}.sb-trees{grid-template-columns:repeat(2,minmax(0,1fr))}.sb-tree-button{gap:5px;padding:8px 6px}.sb-tree-button img{width:28px;height:28px}.sb-tree-button strong{font-size:11px}.sb-tree-button .sp-badge{font-size:9px}.sb-settings{display:grid;grid-template-columns:1fr 1fr;column-gap:12px}.sb-settings label{grid-row:1}.sb-settings input{grid-row:2}.sb-settings small{grid-column:1 / -1}.sb-settings label[for=sb-preset],.sb-settings select{grid-column:1 / -1;grid-row:auto}.sb-tree-head{padding:18px 14px 12px}.sb-tree-identity{gap:8px}.sb-tree-identity h2{font-size:22px}.sb-mastery-level{flex-direction:column;gap:3px}.sb-tree-help{padding-inline:14px}.sb-filter{padding:14px;gap:8px}.sb-grid{padding-inline:14px;height:470px}.sb-books{grid-template-columns:repeat(auto-fill,minmax(68px,1fr));gap:5px}.sb-catalog-foot{padding:14px}.sb-detail{padding:20px}.sb-detail:has(.sb-detail-head){display:flex}.sb-bottom{grid-template-columns:1fr;gap:14px}.sb-bottom>.sp-card{padding:20px}}
@media(prefers-reduced-motion:reduce){.skill-builder *{transition:none!important;scroll-behavior:auto!important}}