/* ============================================================
   The Inner Fretboard — Learn view (embedded lesson engine)

   Ports the lesson-page styling (mockups/lessonpage.css) but SCOPED under
   .view-learn so it can never touch the rest of the app. Page-level rules
   (global resets, body, #app height:100vh) are intentionally dropped — the
   app shell already owns the chrome; the lesson flows in normal document
   scroll. Lesson-engine token names are remapped to the app's palette.
   ============================================================ */
.view-learn{
  --line: var(--rule, #433730);
  --surface-1: var(--panel, #2A231F);
  --surface-2: var(--panel-light, #342C27);
  --bg-warm: var(--bg-elevated, #221D1A);
  --accent-deep:#C99B45; --good:#9DC487; --verm:#EC6A43;
  --f-head:'Sora',sans-serif; --f-body:'Mulish','Inter',sans-serif;
  --rsize:16px; --rlh:1.65; --csize:17px; --rail-w:272px;
  color:var(--ink, #F5F1E8);
}

/* ---- shell: rail + main. Rail is sticky with its own scroll so it stays put
   while the lesson content scrolls. overflow:visible lets the sticky rail work. ---- */
.view-learn .shell{display:flex; align-items:flex-start; gap:0; border:1px solid var(--border-subtle, var(--line)); border-radius:14px; overflow:visible; background:var(--bg-warm); box-shadow:var(--elev-3)}
.view-learn .rail{width:var(--rail-w); flex:0 0 var(--rail-w); border-right:1px solid var(--line); background:var(--bg-warm);
  position:sticky; top:14px; align-self:flex-start; max-height:calc(100vh - 28px); overflow-y:auto; border-radius:14px 0 0 14px;
  padding-bottom:20px; transition:flex-basis .25s, width .25s}
.view-learn .shell.rail-closed .rail{flex-basis:0; width:0; border-right:0; overflow:hidden}
.view-learn .rail-head{padding:18px 20px 14px}
.view-learn .rail-head h2{font-family:var(--f-head); font-size:12px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-dim); font-weight:700}
.view-learn .rail-head .bar{height:6px; background:var(--surface-2); border-radius:99px; overflow:hidden; margin-top:12px}
.view-learn .rail-head .bar>i{display:block; height:100%; background:linear-gradient(90deg,var(--accent-deep),var(--accent)); transition:width .35s}
.view-learn .rail-head .lbl{font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--ink-faint); margin-top:7px}
.view-learn .mod{border-top:1px solid color-mix(in srgb, var(--line) 55%, transparent); padding:10px 0 6px}
.view-learn .mod h3{font-family:var(--f-head); font-weight:700; font-size:13.5px; color:var(--accent,#E8C36B); padding:4px 20px 8px}
.view-learn .les{display:flex; align-items:center; gap:11px; width:100%; text-align:left; background:transparent; border:0; cursor:pointer; color:var(--ink-dim); padding:9px 20px 9px 24px; font-family:var(--f-body); font-size:14px; text-decoration:none}
.view-learn .les:hover{background:var(--surface-1); color:var(--ink)}
.view-learn .les .mk{width:18px; height:18px; border-radius:50%; border:1.5px solid var(--line); flex:0 0 auto; display:grid; place-items:center; font-size:10px; color:#13210f}
.view-learn .les.done .mk{background:var(--good); border-color:var(--good)}
.view-learn .les.current{color:var(--ink); background:linear-gradient(90deg,rgba(232,195,107,.12),transparent); box-shadow:inset 3px 0 0 var(--accent)}
.view-learn .les.current .mk{border-color:var(--accent); color:var(--accent)}
.view-learn .les.locked{color:var(--ink-faint); cursor:default}
.view-learn .les.locked:hover{background:transparent}

/* ---- main column: warm tube-glow ambience behind the lesson header ---- */
.view-learn .main{flex:1; min-width:0; display:flex; flex-direction:column;
  background:radial-gradient(ellipse 860px 400px at 50% -80px, rgba(232,195,107,.08), transparent 62%)}
/* the readable column: centered in the space beside the rail, never edge-to-edge */
.view-learn .wrap{max-width:1120px; width:100%; margin:0 auto; padding:30px clamp(20px,3.4vw,40px) 26px; flex:1}
.view-learn .rail-toggle-embed{margin-bottom:14px}
.view-learn .icon-btn{font-family:var(--f-body); font-weight:700; font-size:13px; color:var(--ink-dim); background:transparent; border:1px solid var(--line); border-radius:8px; padding:7px 12px; cursor:pointer}
.view-learn .icon-btn:hover{color:var(--ink); border-color:var(--ink-faint)}
.view-learn .crumb{font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:.15em; text-transform:uppercase; color:var(--ink-faint)}
.view-learn .crumb b{color:var(--accent); font-weight:600}
.view-learn h1{font-family:var(--f-head); font-weight:800; font-size:33px; line-height:1.14; margin-top:12px; letter-spacing:-.015em; max-width:42ch;
  text-shadow:0 0 44px rgba(232,195,107,.18)}

.view-learn .stepper{display:flex; gap:10px; margin:24px 0 4px; flex-wrap:wrap}
.view-learn .step{display:flex; align-items:center; gap:10px; padding:10px 16px; border:1px solid var(--line); border-radius:11px; background:var(--bg-warm); color:var(--ink-dim); cursor:pointer; transition:border-color .15s, color .15s, box-shadow .15s}
.view-learn .step:hover{border-color:var(--ink-faint); color:var(--ink)}
.view-learn .step .n{width:22px; height:22px; border-radius:50%; background:var(--surface-2); display:grid; place-items:center; font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--ink-faint)}
.view-learn .step .tt{font-family:var(--f-head); font-weight:700; font-size:14px}
.view-learn .step.active{border-color:var(--accent-deep); color:var(--ink); background:linear-gradient(180deg,#2f2418,var(--bg-warm));
  box-shadow:0 0 0 1px rgba(232,195,107,.14), 0 6px 22px -6px rgba(232,195,107,.16), var(--elev-1)}
.view-learn .step.active .n{background:var(--accent); color:#1a1410}
.view-learn .stage-panel[hidden]{display:none}

/* ---- stage card: raised warm panel with a faint tube glow ---- */
.view-learn .card{border:1px solid var(--border-subtle, var(--line)); border-radius:16px; background:var(--grad-surface); overflow:hidden; margin-top:20px;
  box-shadow:var(--elev-3), 0 0 60px -24px rgba(232,195,107,.18)}
.view-learn .card-head{display:flex; align-items:center; gap:12px; padding:16px 24px; border-bottom:1px solid var(--line);
  background:linear-gradient(180deg, rgba(232,195,107,.05), transparent)}
.view-learn .card-head .tag{font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--accent); border:1px solid var(--accent-deep); border-radius:99px; padding:3px 10px}
.view-learn .card-head h2{font-family:var(--f-head); font-weight:700; font-size:18px; letter-spacing:-.01em; display:flex; align-items:center; gap:12px}
.view-learn .card-head h2::before{content:''; flex:0 0 auto; width:4px; height:18px; border-radius:3px;
  background:linear-gradient(180deg, var(--accent), var(--accent-deep)); box-shadow:0 0 10px rgba(232,195,107,.45)}
.view-learn .lead{font-size:var(--csize); line-height:1.62; color:var(--ink-dim); padding:18px 24px 4px; max-width:82ch}
.view-learn .lead em{color:var(--accent); font-style:normal; font-weight:600}
.view-learn .board{background:#1d1712; padding:12px; margin:16px 24px; border:1px solid var(--line); border-radius:12px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03), 0 0 40px -10px rgba(232,195,107,.12), var(--elev-2)}
.view-learn .board.ref{margin:16px 24px}
.view-learn .key{display:flex; gap:16px; flex-wrap:wrap; padding:0 24px 14px; font-family:var(--f-body); font-size:12.5px; color:var(--ink-faint)}
.view-learn .key span{display:inline-flex; align-items:center; gap:7px} .view-learn .key i{width:13px; height:13px; border-radius:50%}

.view-learn .cap-bar{padding:14px 24px; display:flex; align-items:center; gap:14px; min-height:70px; border-top:1px solid var(--line)}
.view-learn .cap-step{flex:0 0 auto; width:30px; height:30px; border-radius:50%; background:var(--surface-1); border:1px solid var(--accent-deep); display:grid; place-items:center; font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--accent); box-shadow:0 0 12px -2px rgba(232,195,107,.28)}
.view-learn .cap-text{font-size:var(--csize); line-height:1.5; max-width:74ch} .view-learn .cap-text em{color:var(--accent); font-weight:600}
.view-learn .controls{display:flex; gap:10px; align-items:center; padding:0 24px 18px; flex-wrap:wrap}

/* lesson buttons (scoped — never touch the app's .btn) */
.view-learn .btn{font-family:var(--f-head); font-weight:700; font-size:14px; cursor:pointer; border-radius:10px; padding:10px 16px; border:1px solid var(--line); background:transparent; color:var(--ink); display:inline-flex; align-items:center; gap:8px; text-decoration:none}
.view-learn .btn:hover{border-color:var(--ink-faint)}
.view-learn .btn.primary{background:linear-gradient(180deg,#F0D083,var(--accent)); color:#1a1410; border-color:var(--accent); box-shadow:0 2px 14px -3px rgba(232,195,107,.45)}
.view-learn .btn.primary:hover{filter:brightness(1.05)}
.view-learn .btn.good{background:var(--good); color:#13210f; border-color:var(--good)}
.view-learn .btn[disabled],.view-learn .btn.is-off{opacity:.4; cursor:not-allowed; pointer-events:none}
.view-learn .prog{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--ink-faint); margin:0 4px}
.view-learn .sel-wrap{display:inline-flex; align-items:center; gap:6px; border:1px solid var(--line); border-radius:10px; padding:0 6px 0 11px; color:var(--ink-dim); font-size:13px}
.view-learn .sel{background:transparent; color:var(--ink); border:0; font-family:var(--f-head); font-weight:700; font-size:14px; padding:9px 4px; cursor:pointer; outline:none}
.view-learn .sel option{background:var(--surface-1)}

.view-learn .body p{font-size:var(--rsize); line-height:var(--rlh); color:var(--ink-dim); padding:0 24px; max-width:82ch; margin-top:12px}
.view-learn .body p:first-child{margin-top:18px}
.view-learn .body b,.view-learn .body em{color:var(--accent); font-weight:600; font-style:normal}
.view-learn .body ul,.view-learn .lblock-text ul{margin:10px 0 4px; padding-left:22px; color:var(--ink-dim); line-height:var(--rlh)}
.view-learn .body ul li,.view-learn .lblock-text ul li{margin:7px 0}
.view-learn .cta{padding:16px 24px 6px; display:flex; gap:12px; align-items:center; flex-wrap:wrap}
.view-learn .cta .note{font-family:var(--f-body); font-size:12.5px; color:var(--ink-faint)}

/* lesson action bar — always pinned to the bottom of the viewport, consistent size */
.view-learn .lessonbar{position:fixed; left:0; right:0; bottom:0; z-index:50; display:flex; align-items:center; gap:12px; min-height:58px; padding:11px clamp(16px,4vw,40px); background:rgba(26,22,20,.96); backdrop-filter:blur(8px); border-top:1px solid var(--line); box-shadow:0 -10px 34px rgba(0,0,0,.35)}
.view-learn .lessonbar .sp{flex:1}
/* three-zone bar: [Course Overview · Previous]  [Mark complete]  [Next: N] */
.view-learn .lessonbar .lb-left{flex:1; display:flex; align-items:center; gap:10px; justify-content:flex-start}
.view-learn .lessonbar .lb-center{flex:0 0 auto; display:flex; align-items:center; gap:10px; justify-content:center}
.view-learn .lessonbar .lb-right{flex:1; display:flex; align-items:center; justify-content:flex-end}
.view-learn .lessonbar #toCourse{opacity:.85}
.view-learn .saved{font-size:12.5px; color:var(--good)}
.view-learn .lesson-status{font-family:var(--f-body); font-size:12.5px; color:var(--ink-faint)}

/* each board is one self-contained unit (board + legend + caption + its own controls) — carded so
   it's unambiguous which Prev/Play/Next belongs to which fretboard */
.view-learn .anim-block{border:1px solid var(--line); border-radius:16px; margin:22px 0; padding:6px 0 16px; background:linear-gradient(180deg, rgba(255,255,255,.018), rgba(0,0,0,.12))}
.view-learn .anim-block:first-of-type{margin-top:8px}
.view-learn .anim-title{font-family:var(--f-head); font-weight:700; font-size:15px; color:var(--accent); padding:16px 24px 0; letter-spacing:-.005em}
/* header lead-in written in the animator */
.view-learn .lblock-lead{display:block; font-family:var(--f-head); font-weight:700; font-size:17px; color:var(--accent); letter-spacing:-.01em; margin-bottom:2px}

.view-learn .video{margin:16px 24px; aspect-ratio:16/9; background:#120e0b; border:1px solid var(--line); border-radius:12px; display:grid; place-items:center; overflow:hidden; box-shadow:inset 0 1px 0 rgba(255,255,255,.03), var(--elev-2)}
.view-learn .video iframe{width:100%; height:100%; border:0; display:block}
.view-learn .video .ph{display:flex; flex-direction:column; align-items:center; gap:10px; color:var(--ink-faint)}
.view-learn .video .ph .pl{width:54px; height:54px; border-radius:50%; background:var(--accent); color:#1a1410; display:grid; place-items:center; font-size:20px}

/* Skill Check result chip under a test stage */
.view-learn .skillresult{padding:2px 24px 16px; font-family:'IBM Plex Mono',monospace; font-size:12.5px}
.view-learn .skillresult .sr-none{color:var(--ink-faint)}
.view-learn .skillresult .sr-badge{display:inline-flex; align-items:center; gap:6px; padding:4px 11px; border-radius:99px; border:1px solid var(--line)}
.view-learn .skillresult .sr-badge.pass{color:var(--good); border-color:var(--good)}
.view-learn .skillresult .sr-badge.tryagain{color:var(--accent); border-color:var(--accent-deep)}
.view-learn .skillresult .sr-badge.none{color:var(--ink-faint)}
.view-learn .skillresult .sr-multi{display:flex; gap:8px; flex-wrap:wrap}
/* Review (cumulative self-test) CTA — set apart from the graded primary check */
.view-learn .cta-review{padding-top:6px; margin-top:2px; border-top:1px dashed var(--line)}
.view-learn .cta-review .btn{background:transparent; border:1px solid var(--line); color:var(--ink-dim)}
.view-learn .cta-review .btn:hover{border-color:var(--accent); color:var(--ink)}
/* Top-tier badge on the completion bar */
/* Top-tier status badge — clearly a badge (not a button): gold text + star on a
   subtle gold wash, square-ish corners to distinguish it from pill buttons. */
.view-learn .lesson-badge.gold{display:inline-flex; align-items:center; gap:6px; padding:4px 10px; border-radius:6px; font-weight:700; font-size:12.5px; letter-spacing:.02em; color:#e8c36b; background:rgba(224,178,74,.12); border:1px solid rgba(224,178,74,.55)}
.view-learn .lesson-badge.gold .star{color:#f4d985; font-size:14px; line-height:1}
/* Course-landing top-tier medal */
.view-learn .learn-lesrow.gold .learn-mk{background:linear-gradient(180deg,#f4d985,#e0b24a); border-color:#caa23f; color:#3a2c08}
.view-learn .learn-tier{font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:#e0b24a; text-transform:uppercase; letter-spacing:.08em; font-weight:700}

/* ---- course landing ---- */
.view-learn .learn-landing{max-width:1020px; margin:0 auto; padding:8px 4px 40px}
.view-learn .learn-hero{border:1px solid var(--line); border-radius:16px; padding:26px 28px; margin-bottom:22px;
  background:radial-gradient(ellipse 640px 260px at 22% -40px, rgba(232,195,107,.13), transparent 62%), linear-gradient(180deg,#241c12,var(--bg-warm));
  box-shadow:var(--elev-2), 0 0 54px -22px rgba(232,195,107,.2)}
.view-learn .learn-hero-kicker{font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--accent)}
.view-learn .learn-hero-title{font-family:var(--f-head); font-weight:800; font-size:28px; line-height:1.12; margin:8px 0 8px; letter-spacing:-.01em}
.view-learn .learn-hero-sub{font-size:16px; line-height:1.6; color:var(--ink-dim); max-width:82ch}
.view-learn .learn-hero-bar{height:7px; background:var(--surface-2); border-radius:99px; overflow:hidden; margin:18px 0 7px; max-width:420px}
.view-learn .learn-hero-bar>i{display:block; height:100%; background:linear-gradient(90deg,var(--accent-deep),var(--accent))}
.view-learn .learn-hero-lbl{font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--ink-faint)}
.view-learn .learn-hero-actions{margin-top:18px}
.view-learn .learn-mod{margin-top:26px}
.view-learn .learn-mod h3{font-family:var(--f-head); font-weight:800; font-size:18px; letter-spacing:-.01em; color:var(--mhue, var(--accent,#E8C36B)); margin:0 0 10px}
.view-learn .learn-lesrows{display:flex; flex-direction:column; gap:8px}
.view-learn .learn-lesrow{display:flex; align-items:center; gap:14px; padding:13px 16px; border:1px solid var(--border-subtle, var(--line)); border-radius:11px; background:var(--grad-surface); box-shadow:var(--elev-1); transition:transform .14s, box-shadow .14s, border-color .14s}
.view-learn .learn-lesrow.open{cursor:pointer}
.view-learn .learn-lesrow.open:hover{border-color:var(--accent-deep); transform:translateY(-1px); box-shadow:var(--elev-2)}
.view-learn .learn-lesrow.locked{opacity:.55}
.view-learn .learn-lesrow.done{border-color:rgba(157,196,135,.4)}
.view-learn .learn-mk{width:22px; height:22px; flex:0 0 auto; border-radius:50%; border:1.5px solid var(--line); display:grid; place-items:center; font-size:11px; color:var(--accent)}
.view-learn .learn-lesrow.done .learn-mk{background:var(--good); border-color:var(--good); color:#13210f}
.view-learn .learn-lesnum{font-family:'IBM Plex Mono',monospace; font-size:12.5px; color:var(--ink-faint); flex:0 0 38px}
.view-learn .learn-lestitle{flex:1; font-family:var(--f-body); font-size:15px; color:var(--ink)}
.view-learn .learn-go{color:var(--ink-faint,#9a8c7d); font-weight:700; opacity:.4; font-size:13px; transition:opacity .14s, color .14s, transform .14s}
.view-learn .learn-lesrow.open:hover .learn-go{color:var(--mhue, var(--accent,#E8C36B)); opacity:1; transform:translateX(2px)}
.view-learn .learn-mk{border-color:color-mix(in srgb, var(--mhue, var(--accent,#E8C36B)) 40%, var(--line)); color:var(--mhue, var(--accent,#E8C36B))}
.view-learn .mod h3{color:var(--mhue, var(--accent,#E8C36B))}
.view-learn .learn-soon{font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:.08em}

@media(max-width:880px){
  .view-learn .shell .rail{flex-basis:0; width:0; border-right:0; overflow:hidden}
  .view-learn .shell.rail-open .rail{flex-basis:var(--rail-w); width:var(--rail-w); border-right:1px solid var(--line)}
}

/* ---- multi-block stages: ordered blocks inside one beat ----
   Blocks live directly inside the stage card; give them the card's inner
   gutter so prose never touches the card edges. Boards keep their own
   full-bleed framing (they carry the 24px via .board margins). */
.view-learn .lblock{margin:0 24px 24px}
.view-learn .lblock-board,.view-learn .lblock-video{margin-left:0; margin-right:0}
/* wide card: board + video fill the panel (big), prose stays a readable width */
.view-learn .lblock-text,.view-learn .lblock-grab,.view-learn .lblock-callout{max-width:920px}
.view-learn .lblock:last-child{margin-bottom:8px}
.view-learn .lblock-h{font-family:var(--f-head); font-weight:700; font-size:16.5px; color:var(--accent); margin:28px 0 10px; padding-top:20px; border-top:1px solid var(--line); letter-spacing:-.005em}
.view-learn .lblock-board .lblock-h,
.view-learn .lblock:first-child .lblock-h{border-top:0; padding-top:0; margin-top:4px}
.view-learn .lblock-board .lblock-h,
.view-learn .lblock-video .lblock-h{margin:14px 24px 2px; border-top:0; padding-top:0}
.view-learn .lblock-video .note{display:block; padding:0 24px; margin-top:-6px; font-size:12.5px; color:var(--ink-faint); max-width:70ch}
.view-learn .lblock-text p,
.view-learn .lblock-grab .body p{margin:0 0 11px; line-height:1.66; padding:0; max-width:82ch; font-size:var(--rsize); color:var(--ink-dim)}
.view-learn .lblock-text b,.view-learn .lblock-text em{color:var(--accent); font-weight:600; font-style:normal}
.view-learn .lblock-board{margin-top:6px}
.view-learn .lblock-grab .body{margin-top:2px}
/* grab exercises read as drill cards — quiet panel, accent spine (like the
   reference doc's drill cards) */
.view-learn .lblock-grab{position:relative; background:var(--surface-1); border:1px solid var(--border-subtle, var(--line)); border-left:3px solid var(--accent-deep); border-radius:6px 12px 12px 6px; padding:15px 18px 13px; box-shadow:var(--elev-1)}
.view-learn .lblock-grab .lblock-h{border-top:0; padding-top:0; margin:0 0 7px; font-size:15px}
.view-learn .lblock-grab .body p{font-size:15px}
.view-learn .lblock-grab .body p:first-child{margin-top:0}
.view-learn .lblock-grab + .lblock-grab{margin-top:-12px}
.view-learn .lblock-grab .cta{padding:10px 0 2px}
.view-learn .lblock-grab .board.ref{margin:6px 0 14px}
/* first grab block in a stage is often the framing paragraph, not an exercise —
   still looks right as a card, so no special case needed */
.view-learn .lblock-callout{margin:22px 24px; padding:15px 18px; border:1px solid rgba(201,155,69,.28); border-left:3px solid var(--accent-deep,#C99B45); border-radius:6px 12px 12px 6px;
  background:linear-gradient(135deg, rgba(232,195,107,.10), rgba(201,155,69,.04) 60%); box-shadow:var(--elev-1), 0 0 34px -14px rgba(232,195,107,.22)}
.view-learn .lblock-callout-h{font-family:var(--f-head); font-weight:700; font-size:11.5px; letter-spacing:.12em; text-transform:uppercase; color:var(--accent,#E0A94A); margin-bottom:6px}
.view-learn .lblock-callout p{margin:0 0 6px; line-height:1.58; font-size:14.5px; color:var(--ink-dim); max-width:82ch}
.view-learn .lblock-callout p b,.view-learn .lblock-callout p em{color:var(--accent); font-weight:600; font-style:normal}
.view-learn .lblock-callout p:last-child{margin-bottom:0}
.view-learn .lblock-callout.good{border-color:rgba(123,190,107,.3); border-left-color:var(--good,#7BBE6B); background:linear-gradient(135deg, rgba(123,190,107,.10), rgba(123,190,107,.04) 60%); box-shadow:var(--elev-1)}
.view-learn .lblock-callout.good .lblock-callout-h{color:var(--good,#7BBE6B)}
.view-learn .lblock-callout.good p b,.view-learn .lblock-callout.good p em{color:var(--good,#7BBE6B)}
.view-learn .lblock-image{margin:20px 24px}
.view-learn .lblock-image img{display:block; width:100%; max-width:540px; height:auto; max-height:68vh; object-fit:contain; margin:0 auto; border:1px solid var(--line); border-radius:12px}
/* inlined SVG graphic (e.g. chromatic wheel) — transparent art, no frame */
.view-learn .lblock-image-inline svg{display:block; width:100%; max-width:460px; height:auto; max-height:68vh; margin:0 auto}
.view-learn .lblock-image-ph{display:flex; align-items:center; justify-content:center; min-height:140px; border:1px dashed var(--line); border-radius:12px; color:var(--ink-faint); font-size:13px}
.view-learn .lblock-vid{display:block; width:100%; height:auto; border:1px solid var(--line); border-radius:12px; background:#000}

/* ---- note-caller drill block ---- */
.view-learn .lblock-drill .drill{border:1px solid var(--border-subtle, var(--line)); border-radius:14px; background:var(--grad-surface); box-shadow:var(--elev-2); overflow:hidden}
.view-learn .drill-stage{display:flex; flex-direction:column; align-items:center; justify-content:center; gap:8px; padding:30px 16px; background:radial-gradient(circle at 50% 30%, rgba(232,195,107,.07), transparent 70%)}
.view-learn .drill-note{font-family:var(--f-head); font-weight:800; font-size:clamp(56px,12vw,104px); line-height:1; color:var(--accent); min-width:1.4em; text-align:center}
.view-learn .drill-note.pulse{animation:drill-pulse .45s ease-out}
@keyframes drill-pulse{0%{transform:scale(.6);opacity:.2}55%{transform:scale(1.08)}100%{transform:scale(1);opacity:1}}
.view-learn .drill-find{font-size:14px; color:var(--ink-dim)}
.view-learn .drill-bar{display:flex; align-items:center; gap:14px; flex-wrap:wrap; padding:12px 14px; border-top:1px solid var(--line)}
.view-learn .drill-ctl{display:flex; align-items:center; gap:7px; font-size:12.5px; color:var(--ink-faint)}
.view-learn .drill-ctl input[type=range]{accent-color:var(--accent)}
.view-learn .drill-ctl select{background:var(--bg); color:var(--ink); border:1px solid var(--line); border-radius:7px; padding:5px 7px; font-size:12.5px}
.view-learn .lblock-image figcaption{margin-top:8px; font-size:12.5px; color:var(--ink-faint); text-align:center}

/* ---- pinned-footer clearance: keep scrollable content above the fixed bar ---- */
.view-learn .main{padding-bottom:74px}
.view-learn .rail{padding-bottom:74px}

/* ---- the stepper above each panel already names the stage; drop the in-card
       eyebrow pill so it isn't said twice ---- */
.view-learn .card-head .tag{display:none}
.view-learn .card-head{padding:15px 22px}

/* ---- curriculum rail toggle (left side, collapse + reopen) ---- */
.view-learn .shell{position:relative}
.view-learn .rail-head-top{display:flex; align-items:center; gap:10px}
.view-learn .rail-collapse{margin-left:auto; width:28px; height:28px; flex:0 0 auto; display:grid; place-items:center; border:1px solid var(--line); border-radius:8px; background:transparent; color:var(--ink-dim); cursor:pointer; font-size:15px; line-height:1}
.view-learn .rail-collapse:hover{color:var(--ink); border-color:var(--ink-faint)}
.view-learn .rail-reopen{display:none}
.view-learn .shell.rail-closed .rail-reopen{position:absolute; left:0; top:16px; z-index:6; display:flex; align-items:center; gap:8px; padding:0 15px 0 11px; height:42px; border:1px solid var(--accent-deep); border-left:0; border-top-right-radius:11px; border-bottom-right-radius:11px; background:linear-gradient(90deg, rgba(232,195,107,.18), var(--bg-warm) 82%); color:var(--accent); cursor:pointer; font-size:16px; font-weight:700; box-shadow:3px 3px 16px rgba(232,195,107,.22)}
.view-learn .shell.rail-closed .rail-reopen::after{content:'Lessons'; font-family:var(--f-head); font-weight:700; font-size:12.5px; letter-spacing:.02em}
.view-learn .shell.rail-closed .rail-reopen:hover{background:linear-gradient(90deg, rgba(232,195,107,.28), var(--surface-1) 82%)}

/* ---- Skill Check running in place inside the lesson panel ---- */
.view-learn .lesson-skillcheck:empty{display:none}
.view-learn .lesson-skillcheck{margin:6px 14px 16px}
.view-learn .stage-panel.sk-running [data-skcta],
.view-learn .stage-panel.sk-running .skillresult{display:none}
/* While a check/review runs, hide the lesson intro so the panel reads as its own window */
.view-learn .stage-panel.sk-running .card-head,
.view-learn .stage-panel.sk-running .body{display:none}
.view-learn .lsc-inpanel{padding-top:2px}
.view-learn .lsc-review{border-left:3px solid #e6a6c7; padding-left:14px; margin-left:-2px}
.view-learn .lsc-practice{border-left:3px solid #6BA9D6; padding-left:14px; margin-left:-2px}
.view-learn .lsc-practice .lsc-kind{color:#6BA9D6}
/* window top bar — clear "where am I + how to leave" */
.view-learn .lsc-topbar{display:flex; align-items:center; justify-content:space-between; gap:12px; padding-bottom:10px; margin-bottom:12px; border-bottom:1px solid var(--line)}
.view-learn .lsc-back{font-weight:600}
.view-learn .lsc-kind{font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:.12em; text-transform:uppercase; font-weight:700; color:var(--accent)}
.view-learn .lsc-review .lsc-kind{color:#e6a6c7}
.view-learn .lsc-head{display:flex; align-items:center; gap:14px; flex-wrap:wrap; margin-bottom:6px}
.view-learn .lsc-head-main{font-family:var(--f-head); font-weight:700; font-size:17px; color:var(--ink); flex:1; min-width:200px}
.view-learn .lsc-id{font-family:'IBM Plex Mono',monospace; font-weight:600; margin-right:6px}
.view-learn .lsc-sub{font-size:13.5px; color:var(--ink-dim); margin-bottom:6px}
.view-learn .lsc-parts{font-family:var(--f-body); font-size:12.5px; color:var(--ink-faint); margin-bottom:10px}

/* ---- lesson Skill Check result note on the runner's result screen ---- */
.auto-result-lessonnote{margin:14px 0 4px; padding:12px 14px; border-radius:10px; font-size:13.5px; line-height:1.5}
.auto-result-lessonnote.pass{color:#9DC487; background:rgba(157,196,135,.10); border:1px solid rgba(157,196,135,.4)}
.auto-result-lessonnote.tryagain{color:var(--ink-dim, #C9BDAF); background:rgba(201,155,69,.08); border:1px solid var(--accent-deep, #C99B45)}

/* Rail scrollbar — thin, quiet, blended into the panel */
.view-learn .rail{scrollbar-width:thin; scrollbar-color:var(--border-subtle,#433730) transparent}
.view-learn .rail::-webkit-scrollbar{width:6px}
.view-learn .rail::-webkit-scrollbar-track{background:transparent}
.view-learn .rail::-webkit-scrollbar-thumb{background:var(--border-subtle,#433730); border-radius:99px}
.view-learn .rail::-webkit-scrollbar-thumb:hover{background:var(--ink-faint,#8f7f72)}

/* Note Caller — string-mode label, time presets, custom-time field */
.view-learn .drill-str{display:block; font-family:'IBM Plex Mono',monospace; font-size:13px; letter-spacing:.08em; text-transform:uppercase; color:var(--accent,#E8C36B); margin-bottom:2px}
.view-learn .drill-presets{display:inline-flex; gap:4px; margin:0 7px}
.view-learn .drill-preset{font-family:var(--f-body,'Mulish',sans-serif); font-size:12px; font-weight:600; padding:4px 9px; border-radius:7px; border:1px solid var(--line,#3a2f28); background:transparent; color:var(--ink-dim,#c9bdaf); cursor:pointer}
.view-learn .drill-preset:hover{border-color:var(--ink-faint,#8f7f72); color:var(--ink,#f5f1e8)}
.view-learn .drill-preset.on{background:var(--accent,#E8C36B); border-color:var(--accent,#E8C36B); color:#1a1410}
.view-learn .drill-num{width:52px; padding:5px 7px; border-radius:7px; border:1px solid var(--line,#3a2f28); background:var(--surface-1,#2a231f); color:var(--ink,#f5f1e8); font-family:var(--f-body,'Mulish',sans-serif); font-size:13px}
/* String on/off toggle in the caller */
.view-learn .drill-strbtn.on{background:var(--accent,#E8C36B); border-color:var(--accent,#E8C36B); color:#1a1410}

/* Interval-geography diagram — the "read the interval by its fret-gap" panels */
.view-learn .lblock-intervalmap{margin:18px 0}
.view-learn .im-note{color:var(--ink-dim); font-size:14.5px; line-height:1.6; max-width:82ch; margin:2px 0 14px}
.view-learn .im-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:12px}
.view-learn .im-panel{margin:0; background:#1d1712; border:1px solid var(--line,#3a2f28); border-radius:12px; padding:12px 12px 7px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03), 0 0 30px -14px rgba(232,195,107,.14), var(--elev-2, 0 8px 24px rgba(0,0,0,.3))}
.view-learn .im-panel figcaption{font-family:var(--f-head,'Sora',sans-serif); font-weight:700; font-size:12.5px; color:var(--ink,#f5f1e8); text-align:center; margin:0 0 6px}
.view-learn .im-panel svg{display:block; width:100%; height:auto}

/* Interval-map — 2-column layout, split by quality, caption under each diagram */
.view-learn .im-columns{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px 24px; max-width:780px; margin-top:6px}
.view-learn .im-col{display:flex; flex-direction:column; gap:14px}
.view-learn .im-col-h{font-family:var(--f-head,'Sora',sans-serif); font-weight:800; font-size:15px; color:var(--accent,#E8C36B); text-align:center; letter-spacing:.01em; padding-bottom:2px; border-bottom:1px solid var(--line,#3a2f28)}
.view-learn .im-cell{background:#1d1712; border:1px solid var(--line,#3a2f28); border-radius:12px; padding:12px 12px 10px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03), 0 0 30px -16px rgba(232,195,107,.14), var(--elev-2, 0 8px 24px rgba(0,0,0,.3))}
.view-learn .im-diagram svg{display:block; width:100%; height:auto}
.view-learn .im-cap{font-size:13px; line-height:1.5; color:var(--ink-dim,#c9bdaf); text-align:center; margin:9px 2px 0}
.view-learn .im-cap b{color:var(--ink,#f5f1e8)}
@media(max-width:600px){.view-learn .im-columns{grid-template-columns:1fr; max-width:340px}}

/* interval-map v2 — gutter for the note, centered columns, the step tag */
.view-learn .lblock-intervalmap{padding:0 clamp(20px,3.4vw,40px)}
.view-learn .im-note{max-width:82ch; margin:2px 0 16px}
.view-learn .im-columns{margin:8px auto 0; max-width:720px}
.view-learn .im-cell{text-align:center}
.view-learn .im-tag{display:inline-block; margin:10px 0 0; padding:3px 11px; border-radius:99px;
  background:rgba(232,195,107,.13); border:1px solid var(--accent-deep,#C99B45); color:var(--accent,#E8C36B);
  font-family:'IBM Plex Mono',monospace; font-size:11px; font-weight:600; letter-spacing:.01em}

/* interval-map v3 — fill the width (bigger cards), roomier caption */
.view-learn .im-columns{max-width:none; gap:18px 28px}
.view-learn .im-cap{font-size:14px; line-height:1.55; margin:11px 8px 2px}
.view-learn .im-cell{padding:14px 16px 14px}

/* interval-map — bulleted, scannable captions (one concept per line) */
.view-learn .im-caps{list-style:disc; text-align:left; margin:12px auto 2px; padding-left:20px; max-width:92%;
  font-size:13.5px; line-height:1.5; color:var(--ink-dim,#c9bdaf)}
.view-learn .im-caps li{margin:4px 0}
.view-learn .im-caps b{color:var(--ink,#f5f1e8); font-weight:700}

/* interval-map — row-aligned grid so every card top lines up */
.view-learn .im-grid2{display:grid; gap:14px 28px; align-items:start; max-width:none; margin:8px auto 0}

/* interval-map — optional per-diagram title (for the "reading intervals" set) */
.view-learn .im-diag-title{font-family:var(--f-head,'Sora',sans-serif); font-weight:700; font-size:13px; color:var(--ink,#f5f1e8); text-align:center; margin:0 0 8px}

/* Nested curriculum — topic groups with indented sub-lessons */
.view-learn .topic{margin:2px 0 4px}
.view-learn .topic-h{font-family:var(--f-head); font-weight:700; font-size:13.5px; color:var(--ink); padding:8px 20px 4px 24px; letter-spacing:-.005em}
.view-learn .topic .sub-les{padding-left:40px; font-size:13.5px}
.view-learn .topic .sub-les .mk{opacity:.9}
.view-learn .topic .sub-les:before{content:''; position:absolute; left:30px; top:0; bottom:0; width:1px; background:var(--line)}
.view-learn .topic .sub-les{position:relative}

/* Learn landing — nested topics + sub-lesson rows */
.view-learn .learn-topic{margin:6px 0}
.view-learn .learn-topic-h{display:flex; align-items:center; gap:16px; padding:12px 20px 6px; font-family:var(--f-head); font-weight:700; font-size:16px; color:var(--ink); letter-spacing:-.01em}
.view-learn .learn-topic-h .learn-lesnum{color:var(--accent); font-family:'IBM Plex Mono',monospace; font-size:13px}
.view-learn .learn-topic .learn-lesrow.sub{margin-left:28px}
.view-learn .learn-topic .learn-lesrow.sub:before{content:''; position:absolute; left:14px; top:0; bottom:0; width:2px; background:var(--line)}
.view-learn .learn-topic .learn-lesrow.sub{position:relative}

/* Lesson — floating back-to-top guitar button */
.lesson-totop{position:fixed; right:22px; bottom:78px; z-index:400;   /* clears the 58px lessonbar — was sitting on the Next button */ width:52px; height:52px; border-radius:50%; border:1px solid var(--accent-deep,#C99B45); background:#241c15; color:#fff; font-size:22px; line-height:1; cursor:pointer; box-shadow:0 8px 24px rgba(0,0,0,.5); opacity:0; transform:translateY(10px) scale(.9); pointer-events:none; transition:opacity .18s, transform .18s}
.lesson-totop.show{opacity:1; transform:translateY(0) scale(1); pointer-events:auto}
.lesson-totop:hover{background:#33281d; border-color:var(--accent,#E8C36B)}

/* Lesson Parts + table-of-contents + figure labels */
.view-learn .lesson-toc{margin:6px 0 18px;padding:14px 16px;border:1px solid var(--line,#433730);border-radius:12px;
  background:linear-gradient(180deg,rgba(232,195,107,.05),transparent)}
.view-learn .toc-h{font-family:var(--f-head,'Sora');font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint,#9a8c7d);margin-bottom:8px}
.view-learn .toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.view-learn .toc-list li{margin:0}
.view-learn .toc-list a{display:flex;align-items:center;gap:11px;padding:7px 8px;border-radius:8px;cursor:pointer;color:var(--ink,#F5F1E8);
  font-family:var(--f-body,'Mulish');font-size:14.5px;text-decoration:none;transition:background .12s}
.view-learn .toc-list a:hover{background:rgba(232,195,107,.10)}
/* gold-OUTLINE letter badges — rounded square, transparent, gold ring+letter — shared by TOC + Part header, same size so they left-align */
.view-learn .toc-letter, .view-learn .part-letter{flex:none;width:24px;height:24px;border-radius:7px;display:grid;place-items:center;
  font-family:var(--f-head,'Sora');font-weight:700;font-size:12.5px;color:var(--accent,#E8C36B);background:transparent;border:2px solid var(--accent,#E8C36B)}
.view-learn .lesson-part{scroll-margin-top:14px;margin:26px 0}
/* indent the header so its badge lines up with the TOC badges (lesson-toc padding 16 + list-item padding 8 = 24) */
.view-learn .part-head{display:flex;align-items:center;gap:12px;margin:0 0 12px 24px;padding-bottom:8px;border-bottom:1px solid var(--line,#433730)}
.view-learn .part-title{font-family:var(--f-head,'Sora');font-weight:700;font-size:18px;color:var(--ink,#F5F1E8);letter-spacing:-.01em}
.view-learn .fig-wrap{position:relative}
/* plain figure label (no box), on the board's title row, aligned to the right over the space past the last fret */
.view-learn .fig-tag{position:absolute;top:22px;right:22px;left:auto;z-index:3;font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:600;
  color:var(--accent,#E8C36B);background:none;border:0;padding:0;line-height:1;pointer-events:none}
/* lesson number shown before the big title */
.view-learn h1 .lesson-num{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:.5em;color:var(--accent,#E8C36B);vertical-align:middle;margin-right:14px;letter-spacing:.02em}

/* interval-call drill — degree big, interval name below */
.view-learn .drill-interval .drill-note{font-size:clamp(48px,10vw,88px)}
.view-learn .drill-sub{display:block;font-family:var(--f-body,'Mulish');font-weight:600;font-size:16px;letter-spacing:0;color:var(--ink-faint,#9a8c7d);margin-top:8px;text-transform:none}

/* Module dropdowns (rail + course landing) — chevron chips, not tiny glyphs */
.view-learn .mod-h{cursor:pointer; display:flex; align-items:center; gap:9px; user-select:none; border-radius:8px; transition:background .14s}
.view-learn .mod-h:hover, .view-learn .learn-mod-h:hover{background:rgba(232,195,107,.05)}
.view-learn .mod-arrow{flex:none; width:20px; height:20px; display:inline-grid; place-items:center; font-size:0; border-radius:6px; background:color-mix(in srgb, var(--mhue, var(--accent,#E8C36B)) 12%, transparent); transition:transform .18s ease, background .14s}
.view-learn .mod-arrow::before{content:''; width:6.5px; height:6.5px; margin-top:-3px; border-right:2px solid var(--mhue, var(--accent,#E8C36B)); border-bottom:2px solid var(--mhue, var(--accent,#E8C36B)); transform:rotate(45deg)}
.view-learn .mod-h:hover .mod-arrow, .view-learn .learn-mod-h:hover .mod-arrow{background:color-mix(in srgb, var(--mhue, var(--accent,#E8C36B)) 22%, transparent)}
.view-learn .mod.closed .mod-arrow, .view-learn .learn-mod.closed .mod-arrow{transform:rotate(-90deg)}
.view-learn .mod.closed .mod-body{display:none}
.view-learn .learn-mod-h{cursor:pointer; display:flex; align-items:center; gap:11px; user-select:none; padding:8px 10px; margin:0 -10px}
.view-learn .learn-mod-count{margin-left:auto; font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--ink-faint,#9a8c7d); font-weight:400; background:rgba(255,255,255,.04); border:1px solid var(--line); border-radius:99px; padding:3px 10px}
.view-learn .learn-mod.closed .learn-lesrows{display:none}

/* Roadmap modules — planned sections, honestly labeled, quietly styled */
.view-learn .learn-mod-roadmap{opacity:.62}
.view-learn .learn-mod-roadmap .learn-mod-note{margin-left:0}
.view-learn .mod-roadmap{opacity:.55}

/* Accent modules (Jump In) — a bonus shelf, visibly different from the lesson track */
.view-learn .mod-accent{background:linear-gradient(90deg, rgba(232,195,107,.06), transparent 75%); border-left:2px solid rgba(232,195,107,.45); margin-left:-2px}
.view-learn .mod-accent h3{color:var(--accent,#E8C36B)}
.view-learn .mod-note{font-size:11.5px; font-style:italic; line-height:1.45; color:var(--ink-faint,#9a8c7d); padding:0 20px 8px 47px}
.view-learn .learn-mod-accent{border:1px solid rgba(232,195,107,.3); border-radius:14px; padding:8px 16px 14px; background:linear-gradient(180deg, rgba(232,195,107,.06), transparent 70%)}
.view-learn .learn-mod-note{font-size:13px; font-style:italic; line-height:1.5; color:var(--ink-dim,#CDBBA1); margin:0 0 10px 41px; max-width:72ch}

/* Bookmark star in the lesson header */
.view-learn h1 .bmark{background:none; border:0; cursor:pointer; font-size:.55em; vertical-align:middle;
  color:var(--ink-faint,#9a8c7d); margin-left:12px; padding:2px 6px; border-radius:8px; transition:color .15s, transform .12s}
.view-learn h1 .bmark:hover{color:var(--accent,#E8C36B); transform:scale(1.12)}
.view-learn h1 .bmark.on{color:var(--accent,#E8C36B)}

/* Bookmarks row on the course landing */
.view-learn .learn-bmarks{display:flex; align-items:center; flex-wrap:wrap; gap:8px; margin-top:16px}
.view-learn .learn-bmarks-h{font-family:var(--f-head,'Sora'); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--accent,#E8C36B)}
.view-learn .learn-bmark-chip{background:rgba(232,195,107,.08); border:1px solid var(--line,#433730); color:var(--ink,#F5F1E8);
  border-radius:99px; padding:5px 13px; font-family:var(--f-body,'Mulish'); font-size:12.5px; cursor:pointer; transition:border-color .15s}
.view-learn .learn-bmark-chip:hover{border-color:var(--accent,#E8C36B)}

/* Vamp block — mp3 backing-track player */
.view-learn .lblock-vamp{margin:18px 0}
.view-learn .vamp{display:flex; align-items:center; gap:16px; padding:14px 18px; border:1px solid var(--line,#433730);
  border-radius:14px; background:linear-gradient(180deg,rgba(232,195,107,.06),rgba(0,0,0,.14))}
.view-learn .vamp .btn{flex:none; min-width:150px}
.view-learn .vamp-meta{flex:1; min-width:0}
.view-learn .vamp-label{font-family:var(--f-head,'Sora'); font-weight:700; font-size:14.5px; color:var(--ink,#F5F1E8)}
.view-learn .vamp-status{font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--ink-faint,#9a8c7d); margin-top:3px}
.view-learn .vamp-vol{display:flex; align-items:center; gap:7px; color:var(--ink-faint,#9a8c7d); font-size:13px}
.view-learn .vamp-vol input{width:90px; accent-color:var(--accent,#E8C36B)}
.view-learn .lblock-vamp.playing .vamp{border-color:var(--accent,#E8C36B); box-shadow:0 0 0 1px rgba(232,195,107,.25)}
.view-learn .lblock-vamp.playing .vamp-label::after{content:' · playing'; color:var(--accent,#E8C36B); font-weight:400; font-size:12px}
.view-learn .lblock-vamp.vamp-missing .vamp{opacity:.66}
.view-learn .vamp-note{font-size:13px; color:var(--ink-dim,#CFC4B4); margin-top:8px}