:root{--learn-cyan:#58bfff;--learn-red:#ff5d63;--learn-warm:#f0c66a;--learn-panel:#121513;--learn-panel-2:#171b19}.learn-page{background:#080a09;color:var(--text)}.learn-page main{overflow:visible}.learn-header{background:rgba(8,10,9,.88);border-bottom-color:var(--line-soft);backdrop-filter:blur(18px)}.learn-header .nav-current{color:var(--text)}.learn-hero{padding:calc(var(--header-h) + 6rem) max(1.5rem,calc((100vw - var(--max))/2)) 7rem;border-bottom:1px solid var(--line);background:radial-gradient(circle at 78% 18%,rgba(101,245,201,.14),transparent 26%),radial-gradient(circle at 10% 10%,rgba(88,191,255,.08),transparent 26%),#080a09}.learn-hero-inner{max-width:var(--max);margin:0 auto}.learn-kicker{display:flex;align-items:center;gap:.7rem;margin-bottom:1.5rem;color:var(--accent);font-size:.69rem;font-weight:850;letter-spacing:.17em}.learn-kicker span{width:2rem;height:1px;background:var(--accent)}.learn-hero h1{max-width:960px;margin-bottom:1.5rem;font-size:clamp(4rem,8vw,8.4rem)}.learn-hero p{max-width:760px;color:#bac3bf;font-size:clamp(1.03rem,1.5vw,1.2rem);line-height:1.8}.paths-section,.library-section,.guide-section,.reference-section{width:min(calc(100% - 3rem),var(--max));margin:0 auto}.paths-section{padding:7rem 0}.section-copy,.library-heading,.guide-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.55fr);gap:4rem;align-items:end;margin-bottom:3rem}.section-copy h2,.library-heading h2,.guide-heading h2,.reference-section h2{margin:.4rem 0 0}.section-copy p,.library-heading p,.guide-heading p,.reference-section>div>p{margin:0;color:var(--muted);font-size:.92rem;line-height:1.75}.path-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}.path-card{display:block;background:var(--learn-panel);transition:transform .2s ease,background .2s ease}.path-card:hover{background:#171b19;transform:translateY(-3px)}.path-art{aspect-ratio:16/9;overflow:hidden;background:#0d100f}.path-art img{width:100%;height:100%;object-fit:cover;filter:saturate(.84) contrast(1.04);transition:transform .4s var(--ease)}.path-card:hover .path-art img{transform:scale(1.03)}.path-body{padding:1.5rem 1.5rem 1.65rem}.path-body>span{display:block;margin-bottom:.8rem;color:var(--accent);font-size:.62rem;font-weight:850;letter-spacing:.12em}.path-body h3{font-size:1.45rem}.path-body p{min-height:7.4rem;margin:0;color:var(--muted);font-size:.8rem;line-height:1.7}.path-body small{display:block;margin-top:1.2rem;color:var(--quiet);font-size:.68rem;font-weight:700}.library-section{padding:7rem 0;border-top:1px solid var(--line)}.library-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:3rem;align-items:start}.filter-panel{position:sticky;top:calc(var(--header-h) + 1.3rem);padding:1.25rem;border:1px solid var(--line);background:#0d100f}.filter-search label,.filter-panel legend{display:block;margin-bottom:.7rem;color:#d9dfdc;font-size:.68rem;font-weight:820;letter-spacing:.08em;text-transform:uppercase}.filter-search input{width:100%;height:42px;padding:0 .8rem;border:1px solid var(--line);outline:0;background:#151817;color:var(--text);font:inherit;font-size:.76rem}.filter-search input:focus{border-color:rgba(101,245,201,.65);box-shadow:0 0 0 3px rgba(101,245,201,.08)}.filter-panel fieldset{margin:1.4rem 0 0;padding:1.2rem 0 0;border:0;border-top:1px solid var(--line)}.filter-panel label{display:flex;align-items:center;gap:.65rem;margin:.55rem 0;color:var(--muted);font-size:.76rem;cursor:pointer}.filter-panel input[type=checkbox]{width:15px;height:15px;accent-color:var(--accent)}.clear-filters{width:100%;margin-top:1.2rem;padding:.7rem;border:1px solid var(--line);background:transparent;color:var(--muted);font:inherit;font-size:.72rem;font-weight:760;cursor:pointer}.clear-filters:hover{color:var(--text);border-color:rgba(255,255,255,.26)}.library-toolbar{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem}.library-toolbar>span{color:var(--quiet);font-size:.72rem;font-weight:760}.sort-control{display:flex;align-items:center;gap:.6rem}.sort-control label{color:var(--quiet);font-size:.68rem}.sort-control select{height:36px;padding:0 2rem 0 .7rem;border:1px solid var(--line);background:#111412;color:var(--text);font:inherit;font-size:.72rem}.tutorial-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}.tutorial-card{display:flex;min-width:0;flex-direction:column;background:var(--learn-panel);transition:background .2s ease,transform .2s ease}.tutorial-card:hover{background:#181c1a;transform:translateY(-2px)}.tutorial-card[hidden]{display:none}.tutorial-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0b0e0c}.tutorial-thumb>img{width:100%;height:100%;object-fit:cover}.tutorial-thumb>span{position:absolute;left:.8rem;top:.8rem;padding:.35rem .48rem;background:rgba(7,10,8,.82);border:1px solid rgba(255,255,255,.14);color:#eef2f0;font-size:.56rem;font-weight:850;letter-spacing:.11em}.tutorial-icon{display:grid;place-items:center;background:radial-gradient(circle at 50% 45%,rgba(101,245,201,.11),transparent 34%),#0c100e}.tutorial-icon>img{width:48px;height:48px;object-fit:contain;filter:brightness(0) invert(1);opacity:.9}.tutorial-icon.danger{background:radial-gradient(circle at 50% 45%,rgba(255,93,99,.12),transparent 34%),#100c0d}.tutorial-body{display:flex;flex:1;flex-direction:column;padding:1.25rem}.tutorial-body h3{font-size:1.1rem;line-height:1.15}.tutorial-body p{flex:1;margin:0;color:var(--muted);font-size:.77rem;line-height:1.68}.tutorial-meta{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.2rem;padding-top:.9rem;border-top:1px solid var(--line-soft);color:var(--quiet);font-size:.6rem;font-weight:760;letter-spacing:.05em}.tutorial-meta strong{color:var(--accent)}.tutorial-meta span:before{content:"·";margin-right:.55rem;color:#4d5752}.empty-state{padding:4rem 2rem;text-align:center;border:1px solid var(--line);background:var(--learn-panel)}.empty-state p{margin:.3rem 0 0;color:var(--muted)}.guide-section{padding:8rem 0;border-top:1px solid var(--line)}.guide-chapter{scroll-margin-top:calc(var(--header-h) + 2rem);display:grid;grid-template-columns:150px minmax(0,1fr);gap:2.4rem;padding:4rem 0;border-top:1px solid var(--line)}.guide-chapter:last-child{border-bottom:1px solid var(--line)}.chapter-label{padding-top:.55rem;color:var(--accent);font-size:.64rem;font-weight:850;letter-spacing:.1em}.guide-chapter h2{margin:0 0 1.2rem;font-size:clamp(2.4rem,4.8vw,4.8rem)}.guide-chapter>div>p{max-width:900px;color:var(--muted);font-size:.91rem;line-height:1.8}.guide-chapter ol{max-width:860px;margin:2rem 0 0;padding:0;list-style:none;counter-reset:steps}.guide-chapter ol li{counter-increment:steps;display:grid;grid-template-columns:42px 1fr;gap:1rem;padding:1rem 0;border-top:1px solid var(--line-soft);color:#c4ccc8;font-size:.82rem;line-height:1.6}.guide-chapter ol li:before{content:counter(steps,decimal-leading-zero);color:var(--accent);font-size:.68rem;font-weight:850}.chapter-note{max-width:900px;margin-top:2rem;padding:1.1rem 1.2rem;border-left:3px solid var(--accent);background:rgba(101,245,201,.055);color:#d9dfdc;font-size:.79rem;line-height:1.7}.chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;max-width:930px;margin-top:2rem;background:var(--line);border:1px solid var(--line)}.chapter-grid>div{min-height:160px;padding:1.2rem;background:var(--learn-panel)}.chapter-grid strong,.chapter-grid span{display:block}.chapter-grid strong{margin-bottom:.7rem;font-size:.84rem}.chapter-grid span{color:var(--muted);font-size:.75rem;line-height:1.65}.mini-toolbar{width:min(520px,100%);margin:2rem 0;padding:.55rem;display:flex;align-items:center;gap:.45rem;border:1px solid var(--line);border-radius:17px;background:#1a1e1c}.mini-toolbar span{width:44px;text-align:center;color:#dfe6e2;font-size:.67rem;font-weight:850}.mini-toolbar b,.mini-toolbar strong{padding:.52rem .8rem;border-radius:11px;background:#292e2c;color:#f7f8f8;font-size:.68rem}.mini-toolbar strong{background:#1b79bb}.guide-chapter table{width:min(900px,100%);margin-top:2rem;border-collapse:collapse;background:var(--learn-panel);border:1px solid var(--line)}.guide-chapter th,.guide-chapter td{padding:1rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--line-soft)}.guide-chapter th{background:#0f1210;color:var(--quiet);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase}.guide-chapter td{color:var(--muted);font-size:.76rem;line-height:1.6}.guide-chapter td:first-child{width:220px;color:var(--text)}.guide-chapter figure{max-width:900px;margin:2rem 0 0;border:1px solid var(--line);background:var(--learn-panel)}.guide-chapter figure img{width:100%;max-height:600px;object-fit:cover}.guide-chapter figcaption{position:static;padding:.9rem 1rem;background:transparent;color:var(--muted);font-size:.7rem;font-weight:500;letter-spacing:0;text-transform:none}.trouble-list{max-width:900px;margin:2rem 0;border-top:1px solid var(--line)}.trouble-list>div{display:grid;grid-template-columns:42px 220px 1fr;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--line-soft)}.trouble-list span{color:var(--learn-red);font-size:.7rem;font-weight:850}.trouble-list strong{font-size:.81rem}.trouble-list p{margin:0;color:var(--muted);font-size:.76rem}.role-reference{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;max-width:930px;background:var(--line);border:1px solid var(--line)}.role-reference>div{min-height:190px;padding:1.35rem;background:var(--learn-panel)}.role-reference img{width:30px;height:30px;object-fit:contain;margin-bottom:2rem;filter:brightness(0) invert(1)}.role-reference strong,.role-reference span{display:block}.role-reference strong{font-size:.84rem}.role-reference span{margin-top:.35rem;color:var(--muted);font-size:.74rem;line-height:1.6}.guide-chapter .text-link{margin-top:1.4rem}.reference-section{padding:8rem 0;display:grid;grid-template-columns:.8fr 1.2fr;gap:5rem}.reference-links{border-top:1px solid var(--line)}.reference-links a{display:grid;grid-template-columns:220px 1fr;gap:1rem;padding:1.2rem 0;border-bottom:1px solid var(--line);transition:padding-left .2s ease}.reference-links a:hover{padding-left:.4rem}.reference-links strong{font-size:.8rem}.reference-links span{color:var(--muted);font-size:.76rem}.learn-page footer{margin-top:0}.path-card:focus-visible,.tutorial-card:focus-visible,.filter-panel button:focus-visible,.filter-panel input:focus-visible,.sort-control select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media(max-width:1080px){.tutorial-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.path-grid{grid-template-columns:1fr}.path-card{display:grid;grid-template-columns:320px 1fr}.path-art{aspect-ratio:auto;min-height:230px}.path-body p{min-height:0}.chapter-grid,.role-reference{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:860px){.section-copy,.library-heading,.guide-heading,.reference-section{grid-template-columns:1fr;gap:1.2rem}.library-layout{grid-template-columns:1fr}.filter-panel{position:static}.filter-panel fieldset{display:flex;flex-wrap:wrap;gap:.35rem 1rem}.filter-panel legend{width:100%}.clear-filters{width:auto;padding:.65rem 1rem}.guide-chapter{grid-template-columns:1fr;gap:.8rem}.chapter-label{padding-top:0}.reference-section{gap:2rem}.path-card{grid-template-columns:1fr}.path-art{aspect-ratio:16/9}.trouble-list>div{grid-template-columns:36px 1fr}.trouble-list p{grid-column:2}.reference-links a{grid-template-columns:1fr;gap:.25rem}}@media(max-width:620px){.learn-hero{padding-top:calc(var(--header-h) + 4rem);padding-bottom:5rem}.learn-hero h1{font-size:clamp(3.1rem,15vw,5rem)}.paths-section,.library-section,.guide-section,.reference-section{width:min(calc(100% - 2rem),var(--max))}.tutorial-grid{grid-template-columns:1fr}.library-toolbar{align-items:flex-start;flex-direction:column}.chapter-grid,.role-reference{grid-template-columns:1fr}.mini-toolbar{overflow:auto}.guide-chapter table{display:block;overflow:auto}.tutorial-body p{min-height:0}.section-copy,.library-heading,.guide-heading{margin-bottom:2rem}}
