/* Trackwise: studio tools, lessons, song planner, synth lab, practice and tips. Colours only from style.css tokens. */

/* ---------- shared bits ---------- */
.mk-list { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; max-width: 68ch; }
.mk-slider input[type="range"] { flex: 1 1 140px; min-width: 120px; }
.mk-slider output { min-width: 4.5em; font-size: 14px; color: var(--fg); }
.mk-project { gap: 12px 20px; }
.mk-project .field select { min-width: 84px; }
.mk-daw a { font-weight: 600; }

/* Part toggles (beat / bass / chords / melody) */
.mk-parts { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.mk-part {
  display: flex; flex-direction: column; align-items: center; gap: 1px; min-width: 84px; min-height: 52px; padding: 8px 10px;
  border-radius: var(--radius); border: 2px solid var(--line); background: var(--surface); color: var(--muted);
  font: inherit; cursor: pointer; transition: border-color .15s, background .15s;
}
.mk-part b { font: 700 15px var(--font-body); color: var(--muted); }
.mk-part span { font-size: 12px; }
.mk-part.on { border-color: var(--cool); background: var(--cool-soft); }
.mk-part.on b { color: var(--fg); }
.mk-part.on span { color: var(--cool); }
.mk-click { margin-left: 4px; }

/* ---------- step grids (beat maker, piano roll, lesson grids) ---------- */
.mk-grid-wrap {
  position: relative; overflow-x: auto; -webkit-overflow-scrolling: touch; padding: 2px 2px 8px; max-width: 100%;
  overscroll-behavior-x: contain;
}
.mk-grid { display: grid; gap: 3px; align-items: center; min-width: min-content; }
.mk-beat { grid-template-columns: minmax(76px, auto) repeat(16, minmax(28px, 1fr)); }
.mk-mini { grid-template-columns: minmax(64px, auto) repeat(16, minmax(18px, 1fr)); }
.mk-corner { min-height: 1px; }
.mk-count { font: 500 10.5px var(--font-mono); color: var(--muted); text-align: center; }
.mk-count.beat { color: var(--fg); font-weight: 700; }
.mk-count.now { color: var(--accent); }
.mk-row-label {
  font: 600 12px/1.1 var(--font-body); color: var(--muted); padding: 0 8px 0 4px; white-space: nowrap;
  position: sticky; left: 0; background: var(--surface); z-index: 2; align-self: stretch; display: flex; align-items: center;
}
button.mk-row-label { border: 0; text-align: left; cursor: pointer; min-height: 30px; border-radius: 6px; }
button.mk-row-label:hover { color: var(--fg); background: var(--surface-2); }
.mk-cell {
  display: block; height: 30px; min-width: 0; border-radius: 5px; padding: 0;
  background: var(--surface-2); border: 1px solid var(--line);
}
button.mk-cell { cursor: pointer; }
button.mk-cell:hover { border-color: var(--accent); }
button.mk-cell:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.mk-mini .mk-cell { height: 22px; }
.mk-cell.beat { border-color: color-mix(in srgb, var(--muted) 55%, var(--line)); }
.mk-cell.on { background: var(--fg); border-color: var(--fg); }
.mk-cell.on.v-acc { background: var(--accent); border-color: var(--accent); }
.mk-cell.on.v-ghost { background: color-mix(in srgb, var(--fg) 30%, var(--surface-2)); border-color: color-mix(in srgb, var(--fg) 40%, var(--line)); }
.mk-cell.now { outline: 2px solid var(--accent); outline-offset: 1px; }

/* Piano roll: no gaps so notes read as one bar; bars and beats marked by borders. */
.mk-roll-wrap { --mk-label-w: 52px; --mk-cell-w: 28px; border: 1px solid var(--line); border-radius: 10px; padding: 0; background: var(--surface); }
.mk-roll { gap: 0; align-items: stretch; }
.mk-roll .mk-cell { height: 28px; border-radius: 0; border-width: 0 0 1px 1px; border-color: var(--line); background: var(--bg); }
.mk-roll .mk-cell.beat { border-left-color: color-mix(in srgb, var(--muted) 45%, var(--line)); }
.mk-roll .mk-cell.bar { border-left: 2px solid var(--muted); }
.mk-roll .mk-cell.tone { background: var(--cool-soft); }
.mk-roll .mk-cell.out { background: repeating-linear-gradient(135deg, var(--surface-2) 0 4px, var(--bg) 4px 8px); }
.mk-roll .mk-cell.on { background: var(--accent); border-bottom-color: var(--accent); }
.mk-roll .mk-cell.on.tail { border-left-color: var(--accent); background: color-mix(in srgb, var(--accent) 75%, var(--surface)); }
.mk-roll .mk-cell.on.start { border-radius: 6px 0 0 6px; box-shadow: inset 3px 0 0 color-mix(in srgb, var(--fg) 35%, var(--accent)); }
.mk-roll .mk-cell.on.end { border-top-right-radius: 6px; border-bottom-right-radius: 6px; }
.mk-roll .mk-cell.on.start.end { border-radius: 6px; }
.mk-roll .mk-cell.now { outline: 0; box-shadow: inset 0 0 0 2px var(--accent); }
.mk-roll .mk-cell.on.now { box-shadow: inset 0 0 0 2px var(--fg); }
.mk-roll .mk-row-label { font: 600 11px var(--font-mono); border-radius: 0; border-bottom: 1px solid var(--line); min-height: 28px; padding: 0 6px; }
.mk-roll .mk-row-label.root { color: var(--accent); }
.mk-roll .mk-row-label.out { font-style: italic; }
.mk-sticky { position: sticky; left: 0; z-index: 2; background: var(--surface); }
.mk-barhead {
  display: flex; align-items: baseline; gap: 8px; padding: 6px 8px; min-width: 0; overflow: hidden; white-space: nowrap;
  border-left: 2px solid var(--muted); border-bottom: 1px solid var(--line); background: var(--surface-2);
}
.mk-barhead b { font: 800 16px var(--font-display); }
.mk-barhead span { font: 600 11px var(--font-mono); color: var(--muted); }
.mk-fills .row { gap: 8px; }

/* ---------- chord builder ---------- */
.mk-palette { display: grid; grid-template-columns: repeat(auto-fill, minmax(78px, 1fr)); gap: 8px; }
.mk-chordbtn, .mk-bar {
  display: flex; flex-direction: column; align-items: center; gap: 1px; min-width: 0; min-height: 56px; padding: 8px 6px;
  border-radius: var(--radius); border: 2px solid var(--line); background: var(--surface); color: var(--fg); font: inherit; cursor: pointer;
  transition: border-color .12s, background .12s;
}
.mk-chordbtn b, .mk-bar b { font: 800 19px/1.1 var(--font-display); }
.mk-chordbtn span, .mk-bar span { font: 600 12px var(--font-mono); color: var(--muted); }
.mk-chordbtn:hover, .mk-bar:hover { border-color: var(--accent); }
.mk-prog { display: grid; grid-template-columns: repeat(auto-fill, minmax(78px, 1fr)); gap: 8px; }
.mk-bar small { font-size: 11px; color: var(--muted); }
.mk-bar.sel { border-color: var(--accent); background: var(--accent-soft); }
.mk-bar.now { border-color: var(--cool); background: var(--cool-soft); }
.mk-presets { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); gap: 8px; }
.mk-preset {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px; text-align: left; min-width: 0;
  font: inherit; color: var(--fg); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 14px; cursor: pointer;
}
.mk-preset:hover { border-color: var(--accent); }
.mk-preset span { font: 600 13px var(--font-mono); color: var(--cool); }
.mk-preset small { color: var(--muted); font-size: 13px; }
#ch-voicing { overflow-wrap: anywhere; }

/* ---------- song planner ---------- */
.mk-tl-box { gap: 6px; }
.mk-timeline { display: flex; gap: 3px; min-height: 58px; width: 100%; }
.mk-block {
  flex: 1 1 0; min-width: 0; overflow: hidden; display: flex; flex-direction: column; justify-content: center; gap: 0;
  padding: 4px 6px; border-radius: 8px; border: 2px solid transparent; background: var(--surface-2); color: var(--fg);
  font: inherit; text-align: left; cursor: pointer;
}
.mk-timeline.static .mk-block { cursor: default; min-height: 52px; }
.mk-block b { font: 700 12.5px/1.2 var(--font-body); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mk-block span { font: 600 11px var(--font-mono); color: var(--muted); }
.mk-block.now, .mk-section.now { border-color: var(--accent); }
.mk-sec-verse { background: var(--cool-soft); }
.mk-sec-prechorus, .mk-sec-build { background: color-mix(in srgb, var(--accent) 22%, var(--surface)); }
.mk-sec-chorus, .mk-sec-drop, .mk-sec-hook { background: color-mix(in srgb, var(--accent) 40%, var(--surface)); }
.mk-sec-breakdown { background: var(--good-soft); }
.mk-sec-bridge { background: color-mix(in srgb, var(--bad) 18%, var(--surface)); }
.mk-energy { display: flex; gap: 3px; height: 44px; align-items: flex-end; }
.mk-energy span { flex: 1 1 0; min-width: 0; height: 100%; display: flex; align-items: flex-end; }
.mk-energy i { display: block; width: 100%; border-radius: 4px 4px 0 0; background: color-mix(in srgb, var(--accent) 60%, var(--surface-2)); transition: height .2s; }
.mk-sections { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; counter-reset: sec; }
.mk-section {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 8px 10px;
  border: 2px solid var(--line); border-radius: var(--radius); background: var(--surface);
}
.mk-section.drag { opacity: 0.5; }
.mk-section.over { border-style: dashed; border-color: var(--accent); }
.mk-grip { cursor: grab; color: var(--muted); font-size: 18px; letter-spacing: -3px; user-select: none; padding: 0 2px; }
.mk-sec-main { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; flex: 1 1 260px; min-width: 0; }
.mk-sec-main select { min-height: 40px; }
.mk-stepper { display: inline-flex; align-items: center; gap: 6px; }
.mk-stepper .mono { min-width: 5.2em; text-align: center; font-size: 14px; }
.mk-layers { display: inline-flex; gap: 4px; }
.mk-layer {
  width: 36px; height: 36px; border-radius: 8px; border: 2px solid var(--line); background: var(--surface-2); color: var(--muted);
  font: 700 14px var(--font-mono); cursor: pointer;
}
.mk-layer.on { background: var(--cool); border-color: var(--cool); color: var(--on-strong); }
.mk-sec-tools { display: inline-flex; gap: 2px; margin-left: auto; }
.mk-sec-tools .btn { min-width: 36px; padding: 6px 8px; }

/* ---------- synth lab ---------- */
.mk-labgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 14px; }
.mk-labgroup { display: flex; flex-direction: column; gap: 10px; min-width: 0; padding: 14px; border-radius: var(--radius); background: var(--surface-2); }
.mk-labgroup h3 { font-size: 15px; }
.mk-labgroup .seg { background: var(--surface); }
.mk-labgroup .seg button.on { background: var(--surface-2); }
.mk-pic svg { display: block; width: 100%; max-width: 320px; height: auto; }
.mk-wave polyline, .mk-adsr polyline { fill: none; stroke: var(--accent); stroke-width: 2.2; stroke-linejoin: round; }
.mk-axis { stroke: var(--line); stroke-width: 1; fill: none; }
.mk-adsr text { font: 600 10px var(--font-mono); fill: var(--muted); text-anchor: middle; }
.mk-keys { display: flex; height: 132px; max-width: 560px; user-select: none; -webkit-user-select: none; touch-action: none; }
.mk-key {
  flex: 1 1 0; min-width: 0; height: 100%; padding: 0 0 8px; display: flex; align-items: flex-end; justify-content: center;
  background: var(--surface); border: 1px solid var(--line); border-radius: 0 0 8px 8px; color: var(--muted); cursor: pointer;
  -webkit-touch-callout: none; font: 600 11px var(--font-mono);
}
.mk-key.black {
  flex: 0 0 8%; height: 62%; margin: 0 -4%; z-index: 1; background: var(--fg); border-color: var(--fg); color: var(--bg);
}
.mk-key.down { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.mk-key:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }

/* ---------- lessons ---------- */
.mk-meta { gap: 8px 12px; margin-top: -8px; }
.mk-lesson { display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.mk-lesson > .prose:first-child h2:first-child { margin-top: 0; }
.mk-callout-body { display: flex; flex-direction: column; gap: 6px; }
.mk-demo { max-width: 100%; min-width: 0; }
.mk-demo .seg { max-width: 100%; }
.mk-demo-note:empty { display: none; }
.mk-shots { gap: 8px; }
.mk-table td, .mk-table th { vertical-align: top; }
.mk-table td:first-child { white-space: nowrap; }
@media (max-width: 600px) { .mk-table { font-size: 14px; } .mk-table td, .mk-table th { padding: 6px 8px; } .mk-table td:first-child { white-space: normal; } }
.mk-try { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--line); padding-top: 18px; }
.mk-try h2 { font-size: 22px; }
.mk-complete {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px;
}
.mk-complete .btn.primary { max-width: 100%; white-space: normal; text-align: left; }

/* DAW sketch (Getting started) */
.mk-daw-sketch { position: relative; gap: 6px; }
.mk-ruler { position: relative; height: 16px; margin-left: 70px; font: 600 10px var(--font-mono); color: var(--muted); }
.mk-ruler span { position: absolute; top: 0; }
.mk-lane { display: flex; align-items: stretch; gap: 6px; min-height: 30px; }
.mk-lane-name { flex: 0 0 64px; font: 600 12px var(--font-body); color: var(--muted); display: flex; align-items: center; }
.mk-lane-body { position: relative; flex: 1; background: var(--surface-2); border-radius: 6px; min-width: 0; }
.mk-clip {
  position: absolute; top: 3px; bottom: 3px; border-radius: 5px; padding: 0 6px; overflow: hidden; white-space: nowrap;
  font: 600 11px/24px var(--font-body); color: var(--fg); border: 1px solid color-mix(in srgb, var(--fg) 20%, transparent);
}
.c-drums { background: color-mix(in srgb, var(--accent) 45%, var(--surface)); }
.c-bass { background: color-mix(in srgb, var(--cool) 45%, var(--surface)); }
.c-chords { background: color-mix(in srgb, var(--good) 35%, var(--surface)); }
.c-audio { background: color-mix(in srgb, var(--bad) 30%, var(--surface)); }
.mk-playhead { position: absolute; top: 22px; bottom: 44px; left: calc(86px + (100% - 102px) * 0.4); width: 2px; background: var(--accent); pointer-events: none; }

/* Routing diagram (Buses) */
.mk-routing { flex-direction: row; flex-wrap: wrap; align-items: center; gap: 10px 18px; }
.mk-route-col { display: flex; flex-direction: column; gap: 6px; }
.mk-chip { font: 600 13px var(--font-body); padding: 5px 10px; border-radius: 8px; white-space: nowrap; color: var(--fg); }
.mk-chip.bus { background: var(--cool-soft); border: 1px solid var(--cool); }
.mk-chip.fx { background: var(--surface-2); border: 1px dashed var(--muted); }
.mk-chip.master { background: var(--accent); color: var(--accent-ink); font-weight: 700; padding: 10px 16px; }

/* ---------- genres ---------- */
.mk-recipe h3 { margin-top: 6px; }

/* ---------- practice ---------- */
.mk-answers { grid-template-columns: repeat(auto-fill, minmax(min(100%, 150px), 1fr)); }
.mk-ans { justify-content: space-between; text-align: left; }
.mk-ans kbd { flex: none; }
.mk-ans.good { background: var(--good-soft); border-color: var(--good); color: var(--good); }
.mk-ans.bad { background: var(--bad-soft); border-color: var(--bad); color: var(--bad); }
.mk-ans[disabled] { opacity: 1; cursor: default; }
.mk-ans[disabled]:not(.good):not(.bad) { opacity: 0.55; }

/* ---------- home ---------- */
.mk-hero { gap: 14px; }
.mk-home-loop { max-width: none; }
.score-strip.mk-progress { grid-template-columns: repeat(auto-fit, minmax(min(100%, 120px), 1fr)); }

/* ---------- tips ---------- */
.mk-totd { display: flex; flex-direction: column; gap: 10px; background: var(--accent-soft); border-radius: var(--radius); padding: 18px; }
.mk-tip {
  display: flex; flex-direction: column; gap: 8px; min-width: 0;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px;
}
.mk-tip p { color: var(--muted); font-size: 15px; }
.mk-tip .mk-tip-link { margin-top: auto; font-size: 14px; font-weight: 600; text-decoration: none; }
.mk-tip .mk-tip-link:hover { text-decoration: underline; }
.mk-tip-featured { border-color: var(--accent); }
.mk-tip-featured h2 { font-size: clamp(24px, 5vw, 32px); }
.mk-tip-featured p { color: var(--fg); font-size: 17px; max-width: 62ch; }
.mk-tip-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); gap: 12px; }
.mk-tips-empty { grid-column: 1 / -1; padding: 24px 0; text-align: center; }
.mk-search { max-width: 420px; }
.mk-search input { width: 100%; }
.mk-chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
.mk-chip-btn {
  font: 500 13px var(--font-body); padding: 6px 12px; border-radius: 999px; cursor: pointer; min-height: 34px;
  background: var(--surface-2); color: var(--muted); border: 1px solid transparent;
}
.mk-chip-btn:hover { color: var(--fg); border-color: var(--line); }
.mk-chip-btn.on { background: var(--accent); color: var(--accent-ink); }
.mk-checklist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.mk-checklist .check { align-items: flex-start; padding: 4px 0; }
.mk-checklist input { flex: none; margin-top: 3px; }

/* ---------- phones ---------- */
@media (max-width: 600px) {
  .mk-part { min-width: 72px; }
  .mk-timeline { min-height: 52px; }
  .mk-block span { display: none; }
  .mk-sec-tools { margin-left: 0; }
  .mk-keys { height: 116px; }
}