/* Fingerstyle & Strumming's page. Ebony, the app's own palette (play/styles/app.css): an ebony
   fingerboard ground, mother-of-pearl text, an abalone-teal accent, and a gold that only ever means
   the thumb's bass string. The page itself is the neck: six strings run its height (a canvas,
   page.js), the frets pass at their real spacing as you scroll, and every note the player sounds
   shakes its string. */
@font-face {
  font-family: "PT Accidentals";
  src: url("play/styles/pt-accidentals.woff2") format("woff2");
  unicode-range: U+266D-266F, U+1D12A-1D12B;
  font-display: block;
}
:root {
  --bg: #101418; --bg-2: #0b0e11; --surface: #181e24; --surface-2: #212931; --line: #35404b;
  --text: #eef1ee; --text-2: #b6c0c4; --text-3: #8f9ba1;
  --accent: #3fc7b4; --accent-soft: rgba(63, 199, 180, .14); --accent-line: rgba(63, 199, 180, .42); --on-accent: #04201c;
  --bass: #e9b65a; --bass-soft: rgba(233, 182, 90, .16);
  --dot: #eef1ee; --dot-text: #101418; --root: #3fc7b4; --root-text: #04201c;
  --wire: #6f7f8a; --nut: #eef1ee; --string: #c9d2d6;
  --serif: "PT Accidentals", "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: "PT Accidentals", -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body.fs {
  margin: 0; min-height: 100vh; background: var(--bg); color: var(--text);
  font: 17px/1.55 var(--sans); overflow-x: hidden;
  background-image: radial-gradient(120% 70% at 70% 0%, #1b232b 0%, var(--bg) 55%, var(--bg-2) 100%);
  background-attachment: fixed;
}
a { color: var(--accent); }
a:hover { color: #7fe0d2; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------------------------------------------------------------- the neck behind everything */
canvas.neck { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0; pointer-events: none; }
.top, main, footer { position: relative; z-index: 1; }

.top { max-width: 1180px; margin: 0 auto; padding: 18px 20px 0; font-size: 14px; }
.top a { color: var(--text-2); text-decoration: none; }
.top a:hover { color: var(--text); }
main { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------------------------------------------------------------- hero */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 48px; align-items: center; min-height: min(92vh, 900px); padding: 28px 0 40px; }
.kicker { margin: 0 0 14px; font: 600 13px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.kicker b { color: var(--bass); font-weight: 700; }
h1 { margin: 0; font: 400 clamp(46px, 7.4vw, 96px)/.94 var(--serif); letter-spacing: -.02em; }
h1 .amp { display: block; font-style: italic; color: var(--accent); }
h1 .amp i { font-style: normal; color: var(--text-2); font-size: .62em; vertical-align: .18em; margin-right: .08em; }
.tagline { margin: 22px 0 0; font: italic 400 clamp(20px, 2.2vw, 26px)/1.3 var(--serif); color: var(--text); max-width: 36ch; }
.lede { margin: 18px 0 0; color: var(--text-2); max-width: 52ch; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 0; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 20px; border-radius: 999px; background: var(--text); color: var(--bg); font-weight: 650; text-decoration: none; }
.btn svg { width: 15px; height: 18px; fill: currentColor; }
.btn:hover { background: #fff; color: var(--bg); }
.btn.ghost { background: transparent; color: var(--text); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn.ghost:hover { box-shadow: inset 0 0 0 1.5px var(--accent); color: var(--text); }
.small { margin: 16px 0 0; font-size: 14px; color: var(--text-3); max-width: 52ch; }

/* the stage: the app's player, on the app's engine */
.stage { position: relative; background: linear-gradient(180deg, rgba(24, 30, 36, .88), rgba(16, 20, 24, .94)); border: 1px solid var(--line); border-radius: 26px; padding: 20px 20px 18px; box-shadow: 0 30px 80px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .04); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.ghost-name { position: absolute; right: 16px; top: -6px; margin: 0; font: italic 400 clamp(90px, 13vw, 168px)/1 var(--serif); color: rgba(238, 241, 238, .045); pointer-events: none; transition: opacity .16s, transform .16s; white-space: nowrap; }
.ghost-name.swap { opacity: 0; transform: translateY(6px); }
.stage-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; position: relative; }
.stage-name { margin: 0; font: 400 34px/1 var(--serif); }
.stage-name small { display: block; margin-top: 6px; font: 13px/1.2 var(--sans); color: var(--text-3); letter-spacing: .02em; }
.stage-open { font-size: 14px; text-decoration: none; white-space: nowrap; }

.seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; background: rgba(11, 14, 17, .7); border: 1px solid var(--line); border-radius: 999px; }
.seg button { border: 0; background: transparent; color: var(--text-2); font: 600 13px/1 var(--sans); padding: 9px 12px; border-radius: 999px; cursor: pointer; white-space: nowrap; }
.seg button:hover { color: var(--text); }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); }
.seg.hand button[aria-pressed="true"] { background: var(--text); color: var(--bg); }

.stage-body { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 18px; align-items: start; margin-top: 16px; position: relative; }
.boxwrap { position: relative; touch-action: none; cursor: grab; border-radius: 16px; padding: 6px 0; }
.boxwrap:active { cursor: grabbing; }
.boxwrap .bx { width: 100%; height: auto; }
.boxwrap .none { margin: 40px 0; color: var(--text-3); font-size: 14px; text-align: center; }
.drag-hint { margin: 6px 0 0; text-align: center; font-size: 12px; color: var(--text-3); }
.thumb-line { margin: 6px 0 0; font-size: 15px; color: var(--text-2); min-height: 4.6em; }
.thumb-line b { color: var(--bass); font-weight: 650; }
.thumb-line .hop { color: var(--text); }

.controls { display: grid; gap: 10px; margin-top: 12px; }
.pats { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.pats button { border: 1px solid var(--line); background: rgba(11, 14, 17, .55); color: var(--text-2); font: 600 13px/1 var(--sans); padding: 9px 11px; border-radius: 10px; cursor: pointer; }
.pats button small { display: block; margin-top: 4px; font: 500 11px/1 var(--sans); color: var(--text-3); letter-spacing: .02em; }
.pats button:hover { border-color: var(--accent-line); color: var(--text); }
.pats button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--text); }

.playrow { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 14px; }
.play { display: inline-flex; align-items: center; gap: 10px; border: 0; background: var(--accent); color: var(--on-accent); font: 700 15px/1 var(--sans); padding: 12px 20px 12px 16px; border-radius: 999px; cursor: pointer; box-shadow: 0 8px 26px rgba(63, 199, 180, .25); }
.play i { width: 0; height: 0; border-left: 11px solid currentColor; border-top: 7px solid transparent; border-bottom: 7px solid transparent; }
.play[aria-pressed="true"] i { width: 11px; height: 12px; border: 0; background: currentColor; border-radius: 2px; }
.play:hover { background: #5ad3c2; }
.tempo { font-size: 13px; color: var(--text-3); }
.tempo b { color: var(--text); font-weight: 650; }

/* the bar, a cell a slot, drawn from FG.rollBar / FG.strumBar */
.bar { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 3px; margin-top: 14px; padding: 10px 8px 8px; background: rgba(11, 14, 17, .6); border: 1px solid var(--line); border-radius: 14px; min-height: 104px; }
.bar .c { display: grid; grid-template-rows: 62px auto auto; justify-items: center; align-items: center; border-radius: 8px; padding: 2px 0; transition: background .12s; }
.bar .c svg { width: 100%; height: 62px; overflow: visible; }
.bar .c .f { font: 600 12px/1 var(--sans); color: var(--text-2); height: 14px; }
.bar .c .n { font: 500 11px/1 var(--sans); color: var(--text-3); height: 12px; margin-top: 3px; }
.bar .c.beat .n { color: var(--text-2); font-weight: 700; }
.bar .c.lit { background: var(--accent-soft); }
.bar .c.lit .f { color: var(--text); }
.bar .tl { stroke: var(--line); stroke-width: 1; }
.bar .td { fill: var(--text); }
.bar .td.p { fill: var(--bass); }
.bar .ar { stroke: var(--text); stroke-width: 2.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.bar .ar.light { stroke: var(--text-2); stroke-width: 1.6; }
.bar .ar.miss { stroke: var(--text-3); opacity: .35; stroke-dasharray: 2 3; }
.bar .ar.bass { stroke: var(--bass); }
.bar .ax { stroke: var(--text); stroke-width: 2.2; stroke-linecap: round; }
.bar .acc { fill: var(--accent); font: 700 12px/1 var(--sans); text-anchor: middle; }
.bar .bn { fill: var(--bass); font: 700 13px/1 var(--sans); text-anchor: middle; dominant-baseline: middle; }
.bar-cap { margin: 10px 2px 0; font-size: 13px; color: var(--text-3); min-height: 2.6em; }

.rail { display: flex; gap: 6px; overflow-x: auto; scroll-snap-type: x proximity; padding: 2px 2px 6px; margin-top: 14px; scrollbar-width: none; }
.rail::-webkit-scrollbar { display: none; }
.rail button { flex: 0 0 auto; scroll-snap-align: center; min-width: 52px; border: 1px solid var(--line); background: rgba(11, 14, 17, .55); color: var(--text); font: 400 19px/1 var(--serif); padding: 10px 12px; border-radius: 12px; cursor: pointer; }
.rail button:hover { border-color: var(--accent-line); }
.rail button[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.tunings { margin-top: 10px; }

/* ---------------------------------------------------------------- the chord box (box.js), as the app draws it */
.bx { display: block; overflow: visible; }
.bx text { font-family: var(--sans); text-anchor: middle; dominant-baseline: middle; }
.bx-fret { stroke: var(--wire); stroke-width: 1.2; }
.bx-nut { stroke: var(--nut); stroke-width: 4; stroke-linecap: round; }
.bx .bx-capo { stroke: var(--accent); stroke-width: 5; }
.bx-str { stroke: var(--string); stroke-width: 1; transition: stroke .2s; }
.bx-wound { stroke-width: 1.6; }
.bx-str.is-thumb { stroke: var(--bass); }
.bx-str.vib { animation: vib .5s ease-out; }
@keyframes vib { 0% { stroke: var(--accent); stroke-width: 2.6; } 100% { } }
.bx-open { fill: none; stroke: var(--text-2); stroke-width: 1.4; }
.bx-open.is-bass { stroke: var(--bass); stroke-width: 1.8; }
.bx-mute { stroke: var(--text-3); stroke-width: 1.4; }
.bx-dot { fill: var(--dot); }
.bx-dot.is-root { fill: var(--root); }
.bx-fn { fill: var(--dot-text); font-size: 10px; font-weight: 700; }
.bx-fn.is-root { fill: var(--root-text); }
.bx-barre { fill: var(--dot); opacity: .55; }
.bx-note { fill: var(--text-2); font-size: 10px; }
.bx-note.is-root { fill: var(--accent); font-weight: 700; }
.bx-note.is-bass, .bx-note.is-root.is-bass { fill: var(--bass); font-weight: 700; }
.bx .bx-pos { fill: var(--accent); font-size: 12px; font-weight: 700; text-anchor: end; }
.bx.enter { animation: enter .32s cubic-bezier(.2, .8, .2, 1); }
@keyframes enter { from { opacity: 0; transform: translateY(8px) scale(.985); } }

/* ---------------------------------------------------------------- sections */
.sec { padding: 72px 0 24px; }
.sec-k { margin: 0 0 10px; font: 600 12px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.sec-h { margin: 0; font: 400 clamp(32px, 4.4vw, 54px)/1.04 var(--serif); letter-spacing: -.01em; max-width: 20ch; }
.sec-h em { color: var(--bass); }
.sec-h .t { color: var(--accent); font-style: italic; }
.sec-p { margin: 16px 0 0; color: var(--text-2); max-width: 62ch; }
.panel { margin-top: 26px; background: rgba(16, 20, 24, .86); border: 1px solid var(--line); border-radius: 22px; padding: 22px; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }

/* the walkdown */
.walk { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.walk figure { margin: 0; padding: 12px 8px 10px; border-radius: 16px; border: 1px solid transparent; text-align: center; transition: border-color .2s, background .2s; cursor: pointer; }
.walk figure.on { border-color: var(--bass); background: var(--bass-soft); }
.walk figure .bx { width: 100%; max-width: 170px; height: auto; margin: 0 auto; }
.walk figcaption { margin-top: 6px; font: 400 24px/1 var(--serif); }
.walk figcaption small { display: block; margin-top: 6px; font: 600 13px/1.2 var(--sans); color: var(--bass); }
.walk-line { position: relative; height: 54px; margin: 6px 0 0; }
.walk-line svg { width: 100%; height: 100%; overflow: visible; }
.walk-line .wl { stroke: var(--bass); stroke-width: 2; fill: none; stroke-dasharray: 4 5; opacity: .75; }
.walk-line .wd { fill: var(--bass); }
.walk-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 14px; }
.walk-foot p { margin: 0; color: var(--text-3); font-size: 14px; flex: 1 1 260px; }

/* one chord, every tuning */
.tune-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.tune-grid button { border: 1px solid var(--line); background: rgba(11, 14, 17, .5); border-radius: 16px; padding: 14px 8px 12px; cursor: pointer; color: var(--text); text-align: center; }
.tune-grid button:hover { border-color: var(--accent-line); }
.tune-grid .bx { width: 100%; max-width: 150px; height: auto; margin: 0 auto; }
.tune-grid b { display: block; font: 400 19px/1.1 var(--serif); }
.tune-grid small { display: block; margin: 4px 0 8px; color: var(--text-3); font-size: 12px; letter-spacing: .05em; }
.tune-grid .fr { display: block; margin-top: 6px; font: 600 13px/1 ui-monospace, "Cascadia Mono", Consolas, monospace; color: var(--text-2); letter-spacing: .08em; }
.tune-grid .none { display: block; padding: 40px 0; color: var(--text-3); font-size: 13px; }

/* features */
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding: 64px 0 8px; }
.feature { background: rgba(16, 20, 24, .84); border: 1px solid var(--line); border-radius: 20px; padding: 22px; }
.feature h2 { margin: 0 0 10px; font: 400 24px/1.15 var(--serif); }
.feature h2 a { color: var(--text); text-decoration: none; }
.feature h2 a:hover { color: var(--accent); }
.feature p { margin: 0; color: var(--text-2); font-size: 15.5px; }
.feature strong { color: var(--text); font-weight: 600; }
.feature ul { margin: 10px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.feature li { font-size: 13px; padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--text-2); }
.feature li small { color: var(--text-3); margin-left: 4px; letter-spacing: .04em; }

/* facts */
.facts { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 26px; align-items: center; margin: 64px 0 0; padding: 26px; background: rgba(16, 20, 24, .9); border: 1px solid var(--line); border-radius: 24px; }
.facts .icon { width: 120px; height: 120px; border-radius: 27px; display: block; }
.facts p { margin: 0; color: var(--text-2); }
.facts p strong { color: var(--text); }
.facts .privacy { margin-top: 10px; font-size: 14.5px; color: var(--text-3); }
.links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 14px 0 0; padding: 0; list-style: none; font-size: 15px; }
footer { max-width: 1180px; margin: 0 auto; padding: 40px 20px 60px; color: var(--text-3); font-size: 14px; }
footer a { color: var(--text-2); }

/* rise in */
.rise-on .rise { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .8, .2, 1); }
.rise-on .rise.seen { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rise-on .rise { opacity: 1; transform: none; transition: none; }
  .bx-str.vib, .bx.enter { animation: none; }
}

/* ---------------------------------------------------------------- narrower */
@media (max-width: 980px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 0; min-height: 0; padding-top: 18px; }
  /* the app comes up straight after the name, the words after it */
  .hero .copy { display: contents; }
  .hero .kicker, .hero h1, .hero .tagline { order: 1; }
  .hero .stage { order: 2; margin: 26px 0 8px; }
  .hero .lede, .hero .actions, .hero .small { order: 3; }
  .seg.tunings { display: flex; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  .seg.tunings::-webkit-scrollbar { display: none; }
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tune-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
}
@media (max-width: 640px) {
  body.fs { font-size: 16px; }
  main, .top, footer { padding-left: 16px; padding-right: 16px; }
  .stage { padding: 16px 14px 14px; border-radius: 22px; }
  .stage-body { grid-template-columns: 132px minmax(0, 1fr); gap: 12px; }
  .stage-name { font-size: 30px; }
  .seg button { padding: 8px 10px; font-size: 12.5px; }
  .pats { min-height: 0; }
  .pats button { padding: 8px 9px; font-size: 12.5px; }
  .bar { padding: 8px 4px 6px; gap: 1px; min-height: 92px; }
  .bar .c { grid-template-rows: 52px auto auto; }
  .bar .c svg { height: 52px; }
  .walk { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .walk-line { display: none; }
  .tune-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .features { grid-template-columns: minmax(0, 1fr); }
  .facts { grid-template-columns: minmax(0, 1fr); text-align: left; }
  .facts .icon { width: 84px; height: 84px; border-radius: 19px; }
  .sec { padding-top: 56px; }
  .panel { padding: 16px 12px; }
}
@media (max-width: 380px) {
  .stage-body { grid-template-columns: 112px minmax(0, 1fr); }
  .tune-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}