:root{--ink:#0d0a08;--espresso:#201510;--saddle:#5c3d26;--brass:#a08d62;--brass-lt:#c4b392;--brass-dk:#7e6b45;--bone:#e9e7e0;--paper:#f6f4ef;--paper-2:#fbfaf7;--hair:rgba(45,31,22,0.16);--hair-strong:rgba(45,31,22,0.3);--muted:#6f6459;--termina:"Jost",sans-serif;--narrow:"Archivo Narrow",sans-serif;--body:"Archivo",sans-serif;--display:"Cormorant Garamond",serif;--ease:cubic-bezier(0.22,0.61,0.36,1);--pad:clamp(1.25rem,4vw,4rem);--maxw:1320px}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:14px;line-height:1.85;letter-spacing:.015em;-webkit-font-smoothing:antialiased}iframe,img,video{display:block;max-width:100%}a{color:inherit;text-decoration:none}h1,h2,h3,h4{margin:0;font-weight:400}.t-eyebrow{font-family:var(--termina);font-weight:600;font-size:11px;letter-spacing:.22em;line-height:1.6;color:var(--brass-dk)}.t-eyebrow,.t-label{text-transform:uppercase}.t-label{font-family:var(--narrow);font-size:12px;letter-spacing:.13em;color:var(--muted)}.t-display{font-family:var(--display);font-weight:300;line-height:1.05;letter-spacing:-.01em}.t-muted{color:var(--muted)}.shell{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:40;background:rgba(246,244,239,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--hair)}.site-header-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;height:68px}.wordmark{display:flex;align-items:baseline;gap:.55rem}.wordmark-main{font-family:var(--termina);font-weight:600;text-transform:uppercase;letter-spacing:.2em;font-size:13px}.wordmark-sub{font-family:var(--display);font-style:italic;font-size:19px;color:var(--brass-dk)}.nav{display:flex;gap:1.75rem;align-items:center}.nav a{font-family:var(--narrow);text-transform:uppercase;font-size:12px;letter-spacing:.13em;color:var(--muted);padding-bottom:2px;border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}.nav a.active,.nav a:hover{color:var(--ink);border-color:var(--brass)}.site-footer{border-top:1px solid var(--hair);margin-top:6rem;padding:2.5rem 0 4rem}.site-footer .shell{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}.hero{border-bottom:1px solid var(--hair);background:linear-gradient(180deg,var(--paper-2),var(--paper))}.hero-inner{padding-top:clamp(3rem,7vw,6rem);padding-bottom:clamp(2.5rem,5vw,4rem);max-width:720px}.hero h1{font-family:var(--display);font-weight:300;font-size:clamp(2.6rem,6vw,4.6rem);line-height:1.02;margin:.75rem 0 1.1rem}.hero p{margin:0 0 2rem;max-width:52ch;color:var(--muted);font-size:15px}.search-wrap{position:relative;max-width:480px}.search-wrap input{width:100%;border:1px solid var(--hair-strong);background:#fff;padding:.95rem 2.75rem .95rem 1.1rem;font-family:var(--body);font-size:14px;color:var(--ink);border-radius:0;outline:none;transition:border-color .2s var(--ease)}.search-wrap input:focus{border-color:var(--brass)}.search-wrap svg{position:absolute;right:1rem;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--brass-dk)}.catalog{display:grid;grid-template-columns:232px 1fr;grid-gap:clamp(2rem,5vw,4rem);gap:clamp(2rem,5vw,4rem);padding-top:3rem;align-items:start}.filter-col{position:-webkit-sticky;position:sticky;top:92px}@media (max-width:900px){.catalog{grid-template-columns:1fr}.filter-col{position:static}}.filter-head{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:.75rem;border-bottom:1px solid var(--hair);margin-bottom:1.25rem}.filter-reset{font-family:var(--narrow);text-transform:uppercase;font-size:11px;letter-spacing:.12em;color:var(--brass-dk);background:none;border:none;cursor:pointer;padding:0}.filter-reset:hover{color:var(--ink)}.filter-group{margin-bottom:1.6rem}.filter-group>h3{font-family:var(--termina);font-weight:600;text-transform:uppercase;font-size:10.5px;letter-spacing:.19em;color:var(--ink);margin-bottom:.65rem}.filter-option{display:flex;align-items:center;gap:.6rem;width:100%;background:none;border:none;padding:.3rem 0;cursor:pointer;text-align:left;font-family:var(--body);font-size:13px;color:var(--muted);transition:color .15s var(--ease)}.filter-option:hover{color:var(--ink)}.filter-option .dot{width:13px;height:13px;border:1px solid var(--hair-strong);border-radius:50%;flex:none;position:relative;transition:border-color .15s var(--ease)}.filter-option[data-on=true]{color:var(--ink)}.filter-option[data-on=true] .dot{border-color:var(--brass-dk)}.filter-option[data-on=true] .dot:after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--brass-dk)}.filter-option .count{margin-left:auto;font-family:var(--narrow);font-size:11px;color:var(--brass-dk)}.results-head{display:flex;align-items:baseline;justify-content:space-between;padding-bottom:1rem;border-bottom:1px solid var(--hair);margin-bottom:1.75rem;flex-wrap:wrap;gap:.5rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(285px,1fr));grid-gap:1px;gap:1px;background:var(--hair);border:1px solid var(--hair)}.card{background:var(--paper-2);padding:1.6rem 1.5rem 1.4rem;display:flex;flex-direction:column;min-height:268px;transition:background .25s var(--ease),transform .25s var(--ease)}.card:hover{background:#fff}.card-thumb{height:92px;margin:-1.6rem -1.5rem 1.3rem;display:flex;align-items:flex-end;padding:0 1.5rem .9rem;position:relative;overflow:hidden}.card-thumb[data-accent=brass]{background:linear-gradient(135deg,var(--brass-lt),var(--brass))}.card-thumb[data-accent=espresso]{background:linear-gradient(135deg,var(--saddle),var(--espresso))}.card-thumb[data-accent=saddle]{background:linear-gradient(135deg,var(--brass-dk),var(--saddle))}.card-thumb .kind{font-family:var(--termina);font-weight:600;text-transform:uppercase;font-size:10px;letter-spacing:.2em;color:rgba(255,255,255,.92)}.card h3{font-family:var(--display);font-size:25px;line-height:1.12;margin-bottom:.55rem}.card p{margin:0;color:var(--muted);font-size:13px;line-height:1.75}.card-foot{margin-top:auto;padding-top:1.15rem;display:flex;align-items:center;justify-content:space-between;gap:.75rem;border-top:1px solid var(--hair);font-family:var(--narrow);text-transform:uppercase;font-size:11px;letter-spacing:.11em;color:var(--muted)}.card-foot .go{color:var(--brass-dk)}.empty{padding:4rem 0;text-align:center;color:var(--muted)}.bar{height:3px;background:var(--hair);overflow:hidden}.bar>span{display:block;height:100%;background:var(--brass-dk);transition:width .4s var(--ease)}.tick{width:17px;height:17px;border-radius:50%;border:1px solid var(--hair-strong);flex:none;display:grid;place-items:center;color:transparent;transition:all .2s var(--ease)}.tick[data-done=true]{background:var(--brass-dk);border-color:var(--brass-dk);color:#fff}.detail-hero{border-bottom:1px solid var(--hair);background:linear-gradient(180deg,var(--paper-2),var(--paper));padding:clamp(2.5rem,5vw,4.5rem) 0 clamp(2rem,4vw,3rem)}.detail-hero h1{font-family:var(--display);font-weight:300;font-size:clamp(2.2rem,5vw,3.8rem);line-height:1.05;margin:.6rem 0 1rem;max-width:20ch}.detail-hero p{margin:0;max-width:56ch;color:var(--muted);font-size:15px}.crumb{font-family:var(--narrow);text-transform:uppercase;font-size:11.5px;letter-spacing:.13em;color:var(--muted)}.crumb a:hover{color:var(--brass-dk)}.meta-row{display:flex;gap:1.5rem;flex-wrap:wrap;margin-top:1.75rem;font-family:var(--narrow);text-transform:uppercase;font-size:11.5px;letter-spacing:.12em;color:var(--muted)}.meta-row strong{color:var(--ink);font-weight:500}.curriculum{max-width:860px;padding-top:2.5rem}.curric-row{display:flex;gap:1.1rem;padding:1.4rem 0;border-bottom:1px solid var(--hair);align-items:flex-start}.curric-row:first-child{border-top:1px solid var(--hair)}.curric-num{font-family:var(--narrow);font-size:12px;color:var(--brass-dk);width:26px;flex:none;padding-top:3px;letter-spacing:.08em}.curric-body{flex:1 1;min-width:0}.curric-body h3{font-family:var(--display);font-size:22px;line-height:1.2;margin-bottom:.25rem}.curric-body p{margin:0;color:var(--muted);font-size:13px;max-width:62ch}.curric-side{flex:none;display:flex;align-items:center;gap:1rem;padding-top:2px;font-size:11px;letter-spacing:.11em;color:var(--muted)}.curric-side,.pill{font-family:var(--narrow);text-transform:uppercase}.pill{font-size:10px;letter-spacing:.14em;color:var(--brass-dk);border:1px solid var(--hair-strong);padding:.15rem .55rem;white-space:nowrap}.btn{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--termina);font-weight:600;text-transform:uppercase;font-size:11px;letter-spacing:.18em;padding:.95rem 1.7rem;border:1px solid var(--ink);background:var(--ink);color:var(--paper);cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease)}.btn:hover{background:var(--saddle);border-color:var(--saddle)}.btn.ghost{background:transparent;color:var(--ink);border-color:var(--hair-strong)}.btn.ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}.btn:disabled{opacity:.35;cursor:not-allowed}.player{display:grid;grid-template-columns:296px 1fr;min-height:calc(100vh - 68px);align-items:start}@media (max-width:980px){.player{grid-template-columns:1fr}}.player-rail{border-right:1px solid var(--hair);background:var(--paper-2);position:-webkit-sticky;position:sticky;top:68px;max-height:calc(100vh - 68px);overflow-y:auto;padding:1.75rem 1.4rem 3rem}@media (max-width:980px){.player-rail{position:static;max-height:none;border-right:none;border-bottom:1px solid var(--hair)}}.rail-course{font-family:var(--display);font-size:22px;line-height:1.15;margin-bottom:.6rem}.rail-progress{margin:1rem 0 1.5rem}.rail-progress .t-label{display:block;margin-bottom:.45rem;font-size:11px}.rail-item{display:flex;gap:.7rem;align-items:flex-start;padding:.75rem .6rem;margin:0 -.6rem;border-radius:2px;transition:background .15s var(--ease)}.rail-item:hover{background:rgba(160,141,98,.09)}.rail-item[data-current=true]{background:rgba(160,141,98,.16)}.rail-item .rail-title{font-size:13px;line-height:1.5}.rail-item .rail-meta{font-family:var(--narrow);text-transform:uppercase;font-size:10.5px;letter-spacing:.11em;color:var(--muted)}.player-main{padding:clamp(1.75rem,4vw,3.25rem) clamp(1.25rem,4vw,3.5rem) 5rem;max-width:900px;min-width:0}.player-main h1{font-family:var(--display);font-weight:300;font-size:clamp(2rem,4vw,3rem);line-height:1.08;margin:.5rem 0 .85rem}.lead{color:var(--muted);font-size:15px;max-width:60ch;margin:0 0 2.5rem}.block{margin-bottom:2.75rem}.block-head{font-family:var(--termina);font-weight:600;text-transform:uppercase;font-size:10.5px;letter-spacing:.19em;color:var(--brass-dk);margin-bottom:.7rem;display:flex;align-items:center;gap:.6rem}.block-head:after{content:"";flex:1 1;height:1px;background:var(--hair)}.embed{border:1px solid var(--hair-strong);background:#000;position:relative}.embed.video{aspect-ratio:16/9}.embed iframe{width:100%;height:100%;border:0}.embed.guide{background:#fff;height:640px}.embed-caption{margin-top:.7rem;font-size:12.5px;color:var(--muted);font-style:italic}.placeholder{position:absolute;inset:0;display:grid;place-content:center;grid-gap:.5rem;gap:.5rem;text-align:center;padding:2rem;background:repeating-linear-gradient(45deg,var(--bone),var(--bone) 12px,var(--paper-2) 12px,var(--paper-2) 24px);color:var(--saddle)}.placeholder code{font-family:var(--narrow);font-size:12px;letter-spacing:.06em;background:rgba(255,255,255,.75);padding:.2rem .5rem;border:1px solid var(--hair)}.prose p{margin:0 0 1.1rem;max-width:66ch;font-size:14.5px;line-height:1.9}.callout{border-left:2px solid var(--brass);background:rgba(160,141,98,.09);padding:1.2rem 1.4rem;max-width:66ch}.callout .t-eyebrow{display:block;margin-bottom:.35rem}.callout p{margin:0;font-size:14px}.attach{display:flex;align-items:center;gap:.9rem;border:1px solid var(--hair-strong);padding:.9rem 1.1rem;margin-bottom:.6rem;max-width:520px;background:var(--paper-2);transition:background .18s var(--ease),border-color .18s var(--ease)}.attach:hover{background:#fff;border-color:var(--brass)}.attach .name{font-size:13.5px}.attach .meta{margin-left:auto;font-family:var(--narrow);text-transform:uppercase;font-size:10.5px;letter-spacing:.11em;color:var(--muted)}.lesson-foot{margin-top:3.5rem;padding-top:2rem;border-top:1px solid var(--hair);display:flex;align-items:center;justify-content:space-between;gap:1.25rem;flex-wrap:wrap}.foot-prev{font-family:var(--narrow);text-transform:uppercase;font-size:11.5px;letter-spacing:.12em;color:var(--muted)}.disclosure,.foot-prev:hover{color:var(--ink)}.disclosure{display:none;width:100%;align-items:center;gap:.6rem;background:var(--paper-2);border:1px solid var(--hair-strong);padding:.9rem 1.1rem;min-height:48px;cursor:pointer;font-family:var(--termina);font-weight:600;text-transform:uppercase;font-size:11px;letter-spacing:.16em}.disclosure .chev{margin-left:auto;transition:transform .2s var(--ease);color:var(--brass-dk)}.disclosure[aria-expanded=true] .chev{transform:rotate(180deg)}.disclosure .n{font-family:var(--narrow);letter-spacing:.08em;color:var(--brass-dk);text-transform:none}@media (max-width:900px){.catalog{padding-top:1.75rem;gap:1.5rem}.disclosure.filter-toggle{display:flex}.filter-rail{position:static;display:none;border:1px solid var(--hair-strong);border-top:none;padding:1.25rem 1.1rem .5rem;background:var(--paper-2)}.filter-rail[data-open=true]{display:block}.filter-head{justify-content:flex-end;padding-bottom:.4rem;margin-bottom:.6rem;border-bottom:none}.filter-head .t-eyebrow{display:none}.filter-reset{font-size:12px;padding:.35rem 0}.filter-option{padding:.6rem 0;font-size:14px;min-height:44px}.card-grid{grid-template-columns:1fr}.card{min-height:0;padding:1.35rem 1.25rem 1.2rem}.card-thumb{margin:-1.35rem -1.25rem 1.1rem;height:74px;padding:0 1.25rem .75rem}.card h3{font-size:23px}.hero-inner{padding-top:2.25rem;padding-bottom:2rem}.search-wrap input{font-size:16px;padding:.9rem 2.6rem .9rem 1rem}}@media (max-width:640px){.site-header-inner{height:60px;gap:1rem}.nav{gap:1.05rem}.nav a{font-size:11px;letter-spacing:.1em}.nav a:nth-child(3){display:none}.wordmark-sub{font-size:17px}.detail-hero{padding:2rem 0 1.75rem}.meta-row{gap:.35rem 1.1rem;margin-top:1.25rem}.btn{width:100%;justify-content:center;padding:1.05rem 1.5rem}.curriculum{padding-top:1.75rem}.curric-row{flex-wrap:wrap;padding:1.15rem 0;gap:.6rem .9rem}.curric-num{width:22px}.curric-body{flex-grow:1;flex-shrink:1;flex-basis:calc(100% - 32px)}.curric-body h3{font-size:20px}.curric-side{flex:1 1 100%;padding-left:calc(22px + .9rem)}.site-footer{margin-top:3.5rem;padding:1.75rem 0 2.5rem}}@media (max-width:980px){.player-rail{padding:1.1rem var(--pad) 1.25rem}.disclosure.rail-toggle{display:flex;margin-top:.9rem}.rail-course{font-size:20px}.rail-list{display:none;padding-top:.4rem}.player-rail[data-open=true] .rail-list{display:block}.rail-item{padding:.85rem .6rem;min-height:48px}.player-main{padding-left:var(--pad);padding-right:var(--pad)}}@media (max-width:640px){.player-main{padding-top:1.5rem;padding-bottom:3rem}.player-main h1{font-size:2rem}.lead{font-size:14.5px;margin-bottom:1.75rem}.block{margin-bottom:2rem}.embed.guide{height:460px}.embed-caption{font-size:12px}.prose p{font-size:15px}.callout{padding:1rem 1.15rem}.attach{padding:.95rem 1rem;min-height:52px}.attach .meta{display:none}.lesson-foot{margin-top:2.5rem;flex-direction:column-reverse;align-items:stretch;gap:1rem}.lesson-foot>div{flex-direction:column;width:100%}.foot-prev{text-align:center;padding:.5rem 0}}