:root{
  --bg:#f4efe6;
  --panel:#fbf8f1;
  --panel-inner:#f6f1e7;
  --ink:#2b2823;
  --ink-soft:#6c6557;
  --line:#d8cfbd;
  --accent:#1d9e75;

  /* rhythm role colours — reused as grid-cell + pill tokens */
  --downbeat-fill:#f4b24f; --downbeat-stroke:#a85f11; --downbeat-text:#4a2a06;
  --beat-fill:#bfe7d6;     --beat-stroke:#1d9e75;     --beat-text:#063e30;
  --offbeat-fill:#bcd9f2;  --offbeat-stroke:#2f7dc4;  --offbeat-text:#0c3a5e;
  --subdiv-fill:#e7ddcb;   --subdiv-stroke:#bdae93;   --subdiv-text:#6c6557;
  --mute-fill:#d9cdee;     --mute-stroke:#6b5bb0;     --mute-text:#322255;
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:'Hanken Grotesk',system-ui,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
.site{max-width:900px;margin:0 auto;padding:28px 20px 60px}
.brand{font-family:'Fraunces',serif;font-weight:600;font-size:30px;letter-spacing:-.01em}
.brand em{font-style:italic;font-weight:400;color:var(--accent)}
.tagline{color:var(--ink-soft);margin-top:2px;font-size:15px}

nav{display:flex;flex-wrap:wrap;gap:6px;margin:20px 0 18px;border-bottom:1px solid var(--line);padding-bottom:14px}
nav button{
  font:inherit;font-size:14px;color:var(--ink-soft);background:transparent;
  border:1px solid transparent;border-radius:999px;padding:7px 15px;cursor:pointer;transition:.15s;
}
nav button:hover{background:var(--panel);color:var(--ink)}
nav button.active{background:var(--ink);color:var(--bg);border-color:var(--ink)}

h2{font-family:'Fraunces',serif;font-weight:500;font-size:24px;margin:0 0 4px}
h3{font-family:'Fraunces',serif;font-weight:500;font-size:18px;margin:22px 0 6px}
.sub{color:var(--ink-soft);font-size:15px}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;margin-top:16px}
.panel.inner{background:var(--panel-inner);margin-top:14px}

/* --- controls --- */
.controls{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.controls label{font-size:13px;color:var(--ink-soft);display:flex;align-items:center;gap:10px}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:6px}
.inline{display:inline-flex;align-items:center;gap:8px}
.inline.check{cursor:pointer}
input[type=range]{width:100%;max-width:340px;accent-color:var(--accent)}
select{font:inherit;font-size:14px;padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink)}
.bpm-readout{font-family:'Fraunces',serif;font-size:16px;color:var(--ink);font-variant-numeric:tabular-nums}

.btn{font:inherit;font-size:14px;padding:9px 18px;border:1px solid var(--line);border-radius:999px;background:var(--bg);color:var(--ink);cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--ink-soft)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:500}
.btn.primary.on{background:var(--downbeat-stroke);border-color:var(--downbeat-stroke)}
.btn:disabled{opacity:.45;cursor:default}

/* --- chips (pattern / subdivision pickers) --- */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:6px}
.chip{font:inherit;font-size:13px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:var(--bg);color:var(--ink-soft);cursor:pointer;transition:.15s}
.chip:hover{color:var(--ink);border-color:var(--ink-soft)}
.chip.active{background:var(--accent);border-color:var(--accent);color:#fff}
.pattern-note,.counting{color:var(--ink-soft);font-size:14px;margin:10px 0 4px;min-height:20px}
.counting{font-family:'Fraunces',serif;font-size:15px;color:var(--ink)}

/* --- the beat grid (shared renderer) --- */
.grid-host{margin:16px 0 4px;overflow-x:auto}
.grid{display:grid;grid-template-columns:repeat(var(--cells),minmax(34px,1fr));gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--bg)}
.cell{display:flex;flex-direction:column;align-items:center;gap:8px;padding:14px 4px 8px;border-right:1px solid var(--line);position:relative;transition:background .08s}
.cell:last-child{border-right:none}
.cell.beat-start{border-left:2px solid var(--line)}
.cell.clickable{cursor:pointer}
.cell.clickable:hover{background:var(--panel)}
.cell.playing{background:#fff3d6}
.cell-label{font-size:12px;color:var(--ink-soft);font-variant-numeric:tabular-nums;min-height:14px}

.cell-face{display:flex;align-items:center;justify-content:center;width:30px;height:30px;font-size:18px}
/* count-mode dots, sized by role */
.cell-face.dot{border-radius:50%}
.dot-downbeat{width:24px;height:24px;background:var(--downbeat-fill);border:2px solid var(--downbeat-stroke)}
.dot-beat{width:20px;height:20px;background:var(--beat-fill);border:2px solid var(--beat-stroke)}
.dot-offbeat{width:15px;height:15px;background:var(--offbeat-fill);border:1px solid var(--offbeat-stroke)}
.dot-subdiv{width:10px;height:10px;background:var(--subdiv-fill);border:1px solid var(--subdiv-stroke)}
/* strum-mode arrows */
.cell-face.strum{font-weight:600;color:var(--beat-text)}
.cell-face.strum.mute{color:var(--mute-text)}
.cell-face.rest{color:var(--line)}
.cell-face.rest::before{content:'\00B7';font-size:20px}
/* edit-mode (for the Builder backlog item) */
.cell-face.empty{width:22px;height:22px;border-radius:6px;border:1px dashed var(--line)}
.cell-face.hit{width:22px;height:22px;border-radius:6px;background:var(--beat-fill);border:1px solid var(--beat-stroke)}
.cell-face.hit.accent{background:var(--downbeat-fill);border-color:var(--downbeat-stroke)}
.cell-face.hit.mute{background:var(--mute-fill);border-color:var(--mute-stroke)}

/* --- inline pills in prose --- */
.pill{display:inline-block;padding:1px 9px;border-radius:999px;font-size:13px;font-weight:500;white-space:nowrap}
.pill.downbeat{background:var(--downbeat-fill);color:var(--downbeat-text)}
.pill.beat{background:var(--beat-fill);color:var(--beat-text)}
.pill.offbeat{background:var(--offbeat-fill);color:var(--offbeat-text)}
.ar{font-weight:600}

.prose p{font-size:15.5px}
.prose strong{font-weight:600}
.prose em{font-style:italic}

/* --- embedded lesson: build a bar --- */
.lesson{margin:18px 0 8px}
.palette{display:flex;flex-wrap:wrap;gap:8px}
.note-btn{display:flex;flex-direction:column;align-items:center;gap:1px;font:inherit;font-size:12px;color:var(--ink-soft);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:8px 12px;cursor:pointer;transition:.15s}
.note-btn:hover{border-color:var(--accent);color:var(--ink)}
.note-btn .glyph{font-size:22px;color:var(--ink);line-height:1}
.note-btn small{font-size:10px;opacity:.8}

.meter{position:relative;height:30px;background:var(--bg);border:1px solid var(--line);border-radius:8px;margin:14px 0 10px;overflow:hidden}
.meter-fill{height:100%;width:0;background:var(--beat-fill);transition:width .2s}
.meter-fill.full{background:var(--downbeat-fill)}
.meter-fill.over{background:var(--mute-fill)}
.meter-label{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--ink)}

.bar-strip{display:flex;gap:3px;min-height:46px;border:1px dashed var(--line);border-radius:8px;padding:6px;background:var(--bg)}
.bar-note{display:flex;align-items:center;justify-content:center;background:var(--panel);border:1px solid var(--line);border-radius:6px;cursor:pointer;transition:.1s}
.bar-note:hover{border-color:var(--mute-stroke)}
.bar-note.playing{background:#fff3d6;border-color:var(--downbeat-stroke)}
.bar-note .glyph{font-size:22px}

.foot{margin-top:36px;color:var(--ink-soft);font-size:13px;border-top:1px solid var(--line);padding-top:16px}
.foot code{background:var(--panel);padding:1px 6px;border-radius:5px;font-size:12px}

/* Guitar Academy suite strip — cross-links to the sibling apps (added by nav/app shell) */
.suite-strip{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12px;color:var(--ink-soft);margin-bottom:20px}
.suite-strip a{color:var(--ink-soft);text-decoration:none;border-bottom:1px dotted var(--line)}
.suite-strip a:hover{color:var(--accent);border-color:var(--accent)}
.suite-strip strong{color:var(--ink);font-weight:600}
.suite-strip span{opacity:.45}