/* KOACH on kinspiration.com: the lessons and the course index, on the site's light page; the scopes and readouts stay
   dark, as the K2700's displays. a is blue, b amber, the FUN's output green. */
:root { --a: #3fb2ff; --b: #ffad33; --out: #5ad690; --display: #04070b; --grid: #122030; }
.kl [hidden] { display: none !important; }

/* ---------- a lesson: the level's lessons on the left, the lesson on the right ---------- */
.kl { padding: 36px 0 80px; }
.kl-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 32px; align-items: start; }
.kl-nav { position: sticky; top: 88px; display: grid; gap: 2px; padding: 18px 12px 16px; border-radius: 16px;
  background: var(--panel); box-shadow: var(--shadow); }
.kl-nav h2 { margin: 0 10px 12px; font: 500 14.5px/1.4 var(--sans); color: var(--ink-dim); }
.kl-nav a { display: flex; align-items: center; gap: 11px; padding: 9px 10px; border-radius: 10px;
  text-decoration: none; color: var(--ink); font: 600 15.5px/1.25 var(--sans); }
.kl-nav a small { order: -1; flex: none; display: grid; place-items: center; min-width: 24px; height: 24px; padding: 0 7px; border-radius: 999px;
  background: var(--panel2); color: var(--ink-dim); font: 700 12px/1 var(--sans); font-variant-numeric: tabular-nums; }
.kl-nav a:hover { background: var(--panel2); color: var(--ink); }
.kl-nav a[aria-current] { background: color-mix(in srgb, var(--accent) 13%, var(--panel)); color: var(--accent-ink); }
.kl-nav .home { font: 800 26px/1.1 var(--sans); letter-spacing: -.02em; color: var(--accent-ink); padding: 2px 10px 4px; text-decoration: none; }
.kl-nav .home:hover { background: none; color: var(--accent); }
.kl-nav a[aria-current] small { background: color-mix(in oklab, var(--accent) 86%, #000); color: #fff; }
.kl-nav p { margin: 10px 10px 0; padding-top: 12px; border-top: 1px solid var(--line); font-size: 14px; line-height: 1.5; color: var(--ink-dim); }
.kl-main { display: grid; gap: 18px; min-width: 0; }
.kl-crumb { font: 600 13.5px/1.4 var(--sans); color: var(--ink-faint); }
.kl-crumb b { color: var(--accent-ink); font-weight: 700; }
.kl-title { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.kl-title h1 { font: 800 clamp(34px, 5vw, 46px)/1.05 var(--sans); letter-spacing: -.025em; }
.badge { font: 600 12.5px/1 var(--sans); padding: 7px 10px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line2); color: var(--ink-dim); }
.badge.f { font: 600 13px/1.35 var(--sans); color: var(--ink); font-variant-numeric: tabular-nums; }
.kl-lead { margin: 0; color: var(--ink-dim); font-size: 18px; max-width: 75ch; }

.kcard { background: var(--panel); border-radius: 16px; padding: 20px 22px 22px; display: grid; gap: 14px; min-width: 0; box-shadow: var(--shadow); }
.kcard > h2 { font: 700 15px/1.2 var(--sans); letter-spacing: -.005em; color: var(--accent-ink); }
.kscen { display: flex; gap: 8px; flex-wrap: wrap; }
.kscen button, .kctl button { min-height: 36px; padding: 0 15px; border-radius: 999px; border: 1px solid var(--line2); background: var(--panel);
  color: var(--ink); font: 600 13.5px/1 var(--sans); cursor: pointer; }
.kscen button:hover, .kctl button:hover { border-color: var(--ink-faint); }
.kscen button.on { background: color-mix(in oklab, var(--accent) 86%, #000); border-color: transparent; color: #fff; }
.kstory { margin: 0; color: var(--ink-dim); min-height: 3em; }
.kstage { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 14px; }
.kscreen { position: relative; background: var(--display); border: 1px solid #000; border-radius: 8px; overflow: hidden; }
.kscreen canvas { display: block; width: 100%; height: 290px; }
#kmap { touch-action: manipulation; cursor: crosshair; }
#kmap.kdrag { touch-action: none; }  /* (only a screen that drags keeps a finger from scrolling the page) */
.kscreen .cap { position: absolute; left: 12px; top: 9px; font: 600 11px/1 var(--sans); letter-spacing: .04em; color: #7b8592; pointer-events: none; }
.kread { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.kval { background: var(--display); border: 1px solid #000; border-radius: 8px; padding: 9px 12px; min-width: 0; }
.kval span { display: block; font: 700 11px/1.3 var(--sans); letter-spacing: .02em; overflow-wrap: anywhere; }
.kval b { font: 600 26px/1.2 var(--sans); font-variant-numeric: tabular-nums; color: #f1f3f6; }
.keq { font: 500 14.5px/1.5 var(--sans); color: var(--ink-dim); overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.kctl { display: flex; gap: 12px 16px; align-items: center; flex-wrap: wrap; }
.kctl button { font: 600 13px/1 var(--sans); }
.kctl button.on { background: var(--out); border-color: var(--out); color: #04140b; }
.kknob { display: flex; gap: 10px; align-items: center; }
.kknob span { font: 700 12.5px/1 var(--sans); white-space: nowrap; }
.kknob.a span { color: var(--a); }
.kknob.b span { color: var(--b); }
.kknob input[type=range] {
  -webkit-appearance: none; appearance: none; width: 190px; height: 8px; border-radius: 4px; border: 1px solid #000; margin: 0;
  background: linear-gradient(90deg, var(--c) var(--fill, 50%), var(--display) var(--fill, 50%));
}
.kknob.a input { --c: var(--a); }
.kknob.b input { --c: var(--b); }
.kknob input::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 28px; border-radius: 4px; border: 1px solid #000; background: linear-gradient(#e4e7ee, #aab0bf); cursor: pointer; }
.kknob input::-moz-range-thumb { width: 18px; height: 28px; border-radius: 4px; border: 1px solid #000; background: linear-gradient(#e4e7ee, #aab0bf); cursor: pointer; }
.knote { margin: 0; font-size: 14px; color: var(--ink-faint); }

.kfacts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 28px; }
.kfacts h3, .kcols h3 { margin: 0 0 6px; font: 700 13px/1.3 var(--sans); color: var(--ink-faint); }
.kfacts p { margin: 0; color: var(--ink); font-size: 16px; }
.kcols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 28px; }
.kbars { display: grid; gap: 6px; }
.kbar { display: grid; grid-template-columns: minmax(0, 170px) minmax(0, 1fr) 46px; gap: 10px; align-items: center; font: 500 13.5px/1.3 var(--sans); }
.kbar span { overflow-wrap: anywhere; }
.kbar i { display: block; height: 10px; border-radius: 2px; background: var(--a); }
.kbar em { font-style: normal; color: var(--ink-dim); text-align: right; font-variant-numeric: tabular-nums; }
.kex { display: grid; gap: 6px; }
.kex div { display: flex; justify-content: space-between; gap: 6px 14px; flex-wrap: wrap; padding: 10px 13px; border-radius: 10px; background: var(--panel2); font: 500 14.5px/1.3 var(--sans); }
.kex div b { color: var(--ink); font-weight: 700; }
.kex div span { color: var(--ink-faint); font-size: 12.5px; }
.kl-pn { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 8px; }
.kl-pn a { text-decoration: none; padding: 14px 18px; border-radius: 14px; background: var(--panel); box-shadow: var(--shadow); font: 600 15px/1.3 var(--sans); color: var(--ink); }
.kl-pn a small { display: block; font: 600 12.5px/1 var(--sans); color: var(--ink-faint); margin-bottom: 6px; }
.kl-pn a:hover { box-shadow: 0 0 0 2px var(--accent), var(--shadow); }
.kl-pn .next { margin-left: auto; text-align: right; }

#ktoast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); max-width: min(92vw, 640px); padding: 10px 16px; border-radius: 10px;
  background: #15171b; color: #f1f3f6; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 30; }
#ktoast.on { opacity: 1; }

/* ---------- the course index ---------- */
.phero .shot .koachviz { max-width: 860px; }
.klessons { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.klesson { display: flex; flex-direction: column; gap: 10px; padding: 20px 22px; border-radius: 16px; text-decoration: none;
  background: var(--panel); box-shadow: var(--shadow); border-top: 3px solid var(--accent); transition: transform .2s, box-shadow .2s; }
.klesson:hover { transform: translateY(-2px); box-shadow: 0 2px 4px rgba(20, 22, 28, .05), 0 26px 46px -22px rgba(20, 22, 28, .3); }
.klesson .n { font: 700 12.5px/1 var(--sans); color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.klesson b { font: 800 24px/1.1 var(--sans); letter-spacing: -.02em; color: var(--ink); }
.klesson .k { font: 600 13px/1 var(--sans); color: var(--accent-ink); }
.klesson p { margin: 0; color: var(--ink-dim); font-size: 15.5px; line-height: 1.5; }
.klesson .u { margin-top: auto; font: 600 13px/1 var(--sans); color: var(--ink-faint); }

/* Creating a sound: the keyboard that plays a step live */
.kkeys { display: flex; position: relative; height: 92px; margin-top: 12px; user-select: none; -webkit-user-select: none; touch-action: none; }
.kkeys .wk { flex: 1 1 0; min-width: 0; height: 100%; border: 1px solid #000; border-radius: 0 0 5px 5px; background: linear-gradient(#f4f5f8, #d9dce3); cursor: pointer; padding: 0; }
.kkeys .bk { flex: 0 0 auto; width: 3.4%; height: 58%; margin: 0 -1.7%; z-index: 1; border: 1px solid #000; border-radius: 0 0 4px 4px; background: linear-gradient(#3b4049, #15171b); cursor: pointer; padding: 0; }
.kkeys .wk.on { background: linear-gradient(#bcd8ff, #7fb0f0); }
.kkeys .bk.on { background: linear-gradient(#4d7fc0, #2b4d80); }
.kkeys[hidden] { display: none; }
.ksliders.kgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 8px 22px; width: 100%; }
.ksliders.kgrid .kknob span { flex: 0 0 132px; overflow: hidden; text-overflow: ellipsis; }
.ksliders.kgrid .kknob input[type=range] { flex: 1; width: auto; min-width: 0; }

@media (max-width: 980px) {
  .kl-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .kl-nav { position: static; display: flex; gap: 6px; overflow-x: auto; padding: 0 0 6px; scrollbar-width: thin; background: none; box-shadow: none; border-radius: 0; }
  .kl-nav h2, .kl-nav p { display: none; }
  .kl-nav a { flex: none; background: var(--panel); box-shadow: var(--shadow); border-radius: 999px; padding: 7px 14px 7px 7px; }
  .kl-nav a.lvl::after { content: none; }
  .kl-nav .home { flex: none; background: none; box-shadow: none; padding: 7px 8px 7px 0; font-size: 20px; }
  .kstage, .kfacts, .kcols { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .kl { padding-top: 22px; }
  .kcard { padding: 16px 14px 18px; }
  .kscreen canvas { height: 230px; }
  #kmap { height: 300px; }
  .kval { padding: 8px 9px; }
  .kval b { font-size: 19px; }
  .kval span { font-size: 9px; }
  .keq { font-size: 12.5px; }
  .kknob { width: 100%; }
  .kknob input[type=range] { flex: 1; width: auto; }
  .kbar { grid-template-columns: minmax(0, 120px) minmax(0, 1fr) 40px; font-size: 12px; }
  .kl-pn a { flex: 1 1 100%; }
  .kl-pn .next { text-align: left; }
}

@media (prefers-reduced-motion: reduce) { #ktoast { transition: none; } }

/* ---------- more than one level ---------- */
.kl-nav h2.more { margin: 16px 10px 6px; padding-top: 14px; border-top: 1px solid var(--line); font: 700 13px/1.4 var(--sans); color: var(--ink-faint); }
.kl-nav a.lvl::after { content: "→"; margin-left: auto; color: var(--ink-faint); }
.kl-nav a.lvl { font: 500 14.5px/1.35 var(--sans); color: var(--ink-dim); padding: 7px 10px; }
.kupcoming { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 12px; }
.kupcoming li { display: grid; gap: 3px; padding-left: 14px; border-left: 2px solid var(--line2); }
.kupcoming b { font: 700 14px/1.3 var(--sans); color: var(--ink); }
.kupcoming span { font-size: 15px; color: var(--ink-faint); line-height: 1.45; }
@media (max-width: 980px) { .kl-nav h2.more { display: none; } }

/* ---------- KOACH's themes ---------- */
.kthemes { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.ktheme { display: flex; flex-direction: column; gap: 10px; padding: 22px 24px; border-radius: 16px; text-decoration: none;
  background: var(--panel); box-shadow: var(--shadow); border-top: 3px solid var(--accent); transition: transform .2s, box-shadow .2s; }
.ktheme.open:hover { transform: translateY(-2px); box-shadow: 0 2px 4px rgba(20, 22, 28, .05), 0 26px 46px -22px rgba(20, 22, 28, .3); }
.ktheme.soon { border-top-color: var(--line2); }
.ktheme.soon b, .ktheme.soon p { opacity: .62; }
.ktheme .n { font: 700 12.5px/1 var(--sans); color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.ktheme b { font: 800 26px/1.1 var(--sans); letter-spacing: -.02em; color: var(--ink); }
.ktheme .k { font: 600 13px/1 var(--sans); color: var(--accent-ink); }
.ktheme p { margin: 0; color: var(--ink-dim); font-size: 15.5px; line-height: 1.5; }
.ktheme .u { margin-top: auto; padding-top: 6px; display: flex; align-items: center; gap: 12px; font: 600 13px/1 var(--sans); color: var(--ink-faint); }
.ktheme .u .m { white-space: nowrap; }
.kjump { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.kjump a { padding: 9px 14px; border-radius: 999px; border: 1px solid var(--line2); text-decoration: none;
  font: 600 13.5px/1 var(--sans); color: var(--ink-dim); background: var(--panel); }
.kjump a:hover { color: var(--ink); border-color: var(--accent); }
.kback { display: flex; justify-content: center; }
.phero .kl-crumb a, .kl-crumb a { color: inherit; text-decoration: none; }
.kl-crumb a:hover { color: var(--ink); }

/* ---------- the theme players' own controls: sliders with their value, a menu of shapes, a choice of destination ---------- */
.ksliders { display: contents; }
.kknob em { min-width: 66px; font: 600 13px/1 var(--sans); font-style: normal; color: var(--ink-dim); font-variant-numeric: tabular-nums; }
.ksel { display: flex; gap: 10px; align-items: center; }
.ksel span { font: 700 12.5px/1 var(--sans); color: var(--accent-ink); }
.ksel select { min-height: 36px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--line2); background: var(--panel);
  color: var(--ink); font: 600 13.5px/1 var(--sans); cursor: pointer; }
.kseg { display: inline-flex; gap: 6px; flex-wrap: wrap; }
@media (max-width: 760px) { .kknob em { min-width: 58px; font-size: 11px; } }
/* the How To: numbered steps, each with the K2700's screen */
.khow { list-style: none; counter-reset: how; margin: 14px 0 0; padding: 0; display: grid; gap: 18px; container-type: inline-size; }
.khow li { counter-increment: how; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 480px); gap: 16px; align-items: start; }
.khow li p { margin: 0; padding-left: 34px; position: relative; color: var(--ink); line-height: 1.55; }
.khow li p::before { content: counter(how); position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 50%;
  background: color-mix(in oklab, var(--accent) 86%, #000); color: #fff; font: 700 12px/24px var(--sans); text-align: center; }
/* (the K2700's screen in a dark bezel, as on the instrument) */
.khow img { width: 100%; height: auto; padding: 7px; border-radius: 12px; background: #15171b; box-shadow: 0 1px 0 rgba(255, 255, 255, .06) inset, 0 12px 26px -14px rgba(20, 22, 28, .55); }
.khow li:not(:has(img)) { grid-template-columns: 1fr; }
@container (max-width: 760px) { .khow li { grid-template-columns: 1fr; } .khow img { max-width: 480px; } }