/* Jamlah Keys: the computer keyboard as an instrument. Same paper-and-ink tokens as the game. */
body.keys-page { display: flex; flex-direction: column; overflow: auto; }
.keys-page .topbar { flex-wrap: wrap; row-gap: 10px; }
.brand-sub { font-family: var(--sans); font-style: normal; font-size: 11px; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); margin-left: 6px; vertical-align: middle; }
.keys-page .mini { display: inline-flex; align-items: center; gap: 8px; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.keys-page .mini select { padding: 5px 2px; border: 0; border-bottom: 1px solid var(--line-strong); border-radius: 0; background: transparent; font-size: 14px; letter-spacing: 0; text-transform: none; color: var(--ink); outline: none; }
.keys-page .mini select option { background: var(--surface); color: var(--ink); }
.keys-page .mini input[type="range"] { width: 96px; accent-color: var(--accent); }
.keys-page .num { font-size: 13px; letter-spacing: 0; color: var(--ink); font-variant-numeric: tabular-nums; min-width: 26px; text-align: center; }
.keys-page [data-for][hidden] { display: none !important; }

.keys-main { flex: 1; min-height: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; padding: 18px 20px 22px; }

.readout { text-align: center; min-height: 92px; }
.now { font-family: var(--brush); font-style: italic; font-weight: 500; font-size: clamp(40px, 6vw, 68px); line-height: 1; }
.now-sub { margin-top: 8px; font-size: 13px; color: var(--muted); letter-spacing: 0.04em; min-height: 20px; }

/* the keyboard */
.kboard { --k: clamp(40px, 6.1vw, 72px); --gap: calc(var(--k) * 0.11); display: flex; flex-direction: column; gap: var(--gap); }
.krow { display: flex; gap: var(--gap); }
.krow:nth-child(2) { margin-left: calc(var(--k) * 0.5); }
.krow:nth-child(3) { margin-left: calc(var(--k) * 0.78); }
.krow:nth-child(4) { margin-left: calc(var(--k) * 1.3); }
.krow:nth-child(5) { margin-left: calc(var(--k) * 3.4); }
.kcap {
  position: relative; width: var(--k); height: var(--k); padding: 0; border-radius: calc(var(--k) * 0.2);
  border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: transform 0.06s, background 0.12s, color 0.12s, border-color 0.12s; touch-action: none;
}
.kcap .ch { position: absolute; top: 4px; left: 6px; font-size: calc(var(--k) * 0.15); line-height: 1; font-weight: 600; color: var(--faint); letter-spacing: 0.02em; }
.kcap .nm { font-family: var(--serif); font-weight: 400; font-size: calc(var(--k) * 0.34); line-height: 1; margin-top: calc(var(--k) * 0.14); white-space: nowrap; }
.kcap .nm.long { font-size: calc(var(--k) * 0.2); letter-spacing: -0.01em; font-family: var(--sans); font-weight: 500; }
.kcap .sub { font-size: calc(var(--k) * 0.15); color: var(--muted); margin-top: 2px; min-height: calc(var(--k) * 0.18); }
.kcap.black { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.kcap.black .sub, .kcap.black .ch { color: color-mix(in srgb, var(--bg) 60%, transparent); }
.kcap.idle { background: transparent; border-style: dashed; border-color: var(--line); }
.kcap.idle .ch { opacity: 0.6; }
.kcap.root { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.kcap.root .nm { color: var(--accent); }
.kcap.chord, .kcap.stab { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.kcap.shot { background: var(--wash); }
.kcap.loop { border-radius: 50%; }
.kcap.loop.queued { animation: queued 0.45s steps(2) infinite; border-color: var(--accent); }
.kcap.loop.on { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.kcap.loop.on .ch, .kcap.loop.on .sub { color: color-mix(in srgb, var(--bg) 70%, transparent); }
.kcap.fx { border-style: dotted; border-color: var(--line-strong); }
.kcap.down { transform: translateY(2px) scale(0.96); background: var(--accent); color: var(--bg); border-color: var(--accent); }
.kcap.down .ch, .kcap.down .sub, .kcap.down .nm { color: inherit; }
.kcap.down::after { content: ""; position: absolute; inset: -5px; border-radius: inherit; border: 1.5px solid var(--accent); opacity: 0; animation: ring 0.5s ease-out; pointer-events: none; }
.kcap.space { width: calc(var(--k) * 6.2); height: calc(var(--k) * 0.72); flex-direction: row; gap: 10px; }
.kcap.space .nm { margin: 0; font-family: var(--sans); font-size: 12px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.kcap.space.down .nm, .kcap.space.on .nm { color: inherit; }
.kcap.space.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
@keyframes ring { from { opacity: 0.7; transform: scale(0.92); } to { opacity: 0; transform: scale(1.22); } }
@keyframes queued { from { background: var(--accent-soft); } to { background: transparent; } }

.beats { display: flex; gap: 10px; height: 8px; }
.beats i { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); transition: background 0.08s, transform 0.08s; }
.beats i.on { background: var(--accent); transform: scale(1.5); }
.beats.off { visibility: hidden; }

/* the real piano underneath, so what you learn here carries over */
.strip { display: flex; width: min(1080px, 96vw); height: clamp(64px, 11vh, 104px); border: 1px solid var(--line-strong); border-radius: 6px; overflow: hidden; background: var(--surface); }
.strip[hidden] { display: none; }
.wk { position: relative; flex: 1; border-right: 1px solid var(--line); display: flex; align-items: flex-end; justify-content: center; padding-bottom: 4px; font-size: 9.5px; color: var(--faint); }
.wk:last-child { border-right: 0; }
.wk.out { background: var(--wash); }
.wk.scale::before, .bk.scale::before { content: ""; position: absolute; bottom: 18px; left: 50%; width: 5px; height: 5px; margin-left: -2.5px; border-radius: 50%; background: var(--accent); opacity: 0.55; }
.bk.scale::before { bottom: 6px; }
.wk.on { background: var(--accent); color: var(--bg); }
.bk { position: absolute; z-index: 2; top: 0; right: -32%; width: 64%; height: 60%; background: var(--ink); border-radius: 0 0 3px 3px; }
.bk.out { opacity: 0.45; }
.bk.on { background: var(--accent); opacity: 1; }

.hint { max-width: 880px; text-align: center; font-size: 13px; color: var(--muted); }
.hint kbd { margin: 0 3px; }

.wake { position: fixed; inset: 0; z-index: 20; display: flex; align-items: center; justify-content: center; background: color-mix(in srgb, var(--bg) 88%, transparent); cursor: pointer; }
.wake.gone { display: none; }
.wake div { text-align: center; }
.wake b { display: block; font-family: var(--brush); font-style: italic; font-weight: 500; font-size: 64px; line-height: 1; }
.wake span { display: block; margin-top: 14px; font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }

@media (max-width: 760px) {
  .keys-page .topbar { padding: 12px 14px; gap: 10px; }
  .keys-page .brand { display: block; font-size: 24px; }
  .keys-page .spacer { display: none; }
  .readout { min-height: 70px; }
}

/* learn */
.lessons { display: flex; align-items: center; gap: 8px; width: min(1180px, 96vw); overflow-x: auto; padding: 4px 2px 10px; scrollbar-width: thin; }
.lessons[hidden] { display: none; }
.tally { flex: none; font-size: 12.5px; color: var(--muted); margin-right: 8px; white-space: nowrap; }
.tally b { color: var(--accent); font-weight: 600; font-size: 14px; }
.lesson { flex: none; display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line-strong); background: transparent; font-size: 13px; color: var(--muted); white-space: nowrap; }
.lesson:hover { color: var(--ink); border-color: var(--ink); }
.lesson.on { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.lesson .l-n { font-size: 11px; font-weight: 600; opacity: 0.6; font-variant-numeric: tabular-nums; }
.lesson .l-s { font-size: 11px; letter-spacing: 1px; color: var(--accent); }
.lesson.on .l-s { color: inherit; opacity: 0.85; }
.stars { color: var(--accent); font-style: normal; letter-spacing: 0.08em; }
.stars i { font-style: normal; opacity: 0.3; }
.readout.wrong .now { animation: shake 0.3s ease; color: var(--miss); }
@keyframes shake { 20% { transform: translateX(-9px); } 50% { transform: translateX(7px); } 80% { transform: translateX(-4px); } }
.kcap.choice { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.kcap.target { background: var(--accent-soft); border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft), inset 0 0 0 1.5px var(--accent); animation: glow 1.1s ease-in-out infinite; }
.kcap.black.target { box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 55%, transparent), inset 0 0 0 2px var(--accent); }
@keyframes glow { 50% { box-shadow: 0 0 0 7px var(--accent-soft), inset 0 0 0 1.5px var(--accent); } }
.kboard.blind .kcap:not(.idle):not(.space) .nm, .kboard.blind .kcap .sub { visibility: hidden; }
.wk.target, .bk.target { background: color-mix(in srgb, var(--accent) 45%, var(--surface)); }