/* ============================================================
   Jungle Groove Machine — styles
   One layout, three skins (Studio / Rack / Grid), cream + dark.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Major+Mono+Display&display=swap');

:root {
  --gm-mono: 'DM Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --gm-logo: 'Major Mono Display', 'DM Mono', monospace;
}

/* ---- palette: cream (default) ---- */
.gm {
  --paper:  #ece2cf;
  --panel:  #f7f1e4;
  --panel-2:#fbf6ec;
  --ink:    #2a241d;
  --ink-soft:#8a7c66;
  --ink-dim:#b3a489;
  --line:   #d9cbb0;
  --line-2: #e7dcc6;
  --well:   #e3d7be;
  --well-2: #ded0b4;
  --screen-bg:#23201a;
  --screen-ink:#f4d98a;
  --shadow: 0 1px 0 #fffdf6 inset, 0 2px 6px rgba(60,46,20,.07);
  --inset:  inset 0 2px 4px rgba(60,46,20,.16);
}

/* ---- palette: dark ---- */
.gm-app.dark .gm {
  --paper:  #141109;
  --panel:  #221c14;
  --panel-2:#2a2319;
  --ink:    #f3ebd9;
  --ink-soft:#a89a7e;
  --ink-dim:#6f6450;
  --line:   #3a3122;
  --line-2: #2e2719;
  --well:   #100d07;
  --well-2: #19140c;
  --screen-bg:#0c0a06;
  --screen-ink:#ffd271;
  --shadow: 0 1px 0 rgba(255,240,200,.05) inset, 0 4px 14px rgba(0,0,0,.4);
  --inset:  inset 0 2px 6px rgba(0,0,0,.55);
}

/* ============================================================
   shell
   ============================================================ */
.gm * { box-sizing: border-box; }
.gm {
  font-family: var(--gm-mono);
  color: var(--ink);
  background: var(--paper);
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 16px;
  gap: 12px;
  -webkit-font-smoothing: antialiased;
  position: relative;
  --cell-radius: 7px;
  --pane-radius: 12px;
  --ctrl-radius: 8px;
}

.gm-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--pane-radius);
  box-shadow: var(--shadow);
}

/* rainbow hi-fi stripe (subtle) */
.gm-rainbow {
  background: linear-gradient(90deg,
    #db4b3a 0 20%, #e8862e 20% 40%, #e3bb39 40% 60%,
    #1f9e6e 60% 80%, #2f6fc9 80% 100%);
}
.gm-rainbow-v {
  background: linear-gradient(180deg,
    #db4b3a 0 20%, #e8862e 20% 40%, #e3bb39 40% 60%,
    #1f9e6e 60% 80%, #2f6fc9 80% 100%);
}

.gm-mute-rainbow { opacity: .85; }

/* ============================================================
   TRANSPORT
   ============================================================ */
.gm-transport {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  min-height: 58px;
}
.gm-logo {
  font-family: var(--gm-logo);
  font-size: 19px;
  line-height: 1;
  letter-spacing: .5px;
  color: var(--ink);
  white-space: nowrap;
}
.gm-logo small {
  display: block;
  font-family: var(--gm-mono);
  font-size: 8.5px;
  letter-spacing: 3px;
  color: var(--ink-soft);
  margin-top: 4px;
}
.gm-transport-divider {
  width: 1px; align-self: stretch; background: var(--line);
  margin: 2px 0;
}

.gm-tbtns { display: flex; gap: 8px; }
.gm-play, .gm-stop {
  width: 46px; height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--ctrl-radius);
  background: var(--panel-2);
  color: var(--ink);
  display: grid; place-items: center;
  cursor: pointer;
  transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
  box-shadow: var(--shadow);
}
.gm-play:hover, .gm-stop:hover { transform: translateY(-1px); }
.gm-play:active, .gm-stop:active { transform: translateY(1px); }
.gm-play.active {
  background: #1f9e6e; border-color: #1f9e6e; color: #fff;
  box-shadow: 0 0 0 3px rgba(31,158,110,.22);
}
.gm-play svg, .gm-stop svg { width: 16px; height: 16px; }

/* readouts (LCD screen) */
.gm-readout {
  background: var(--screen-bg);
  border-radius: 7px;
  padding: 6px 12px;
  display: flex; flex-direction: column; gap: 2px;
  border: 1px solid rgba(0,0,0,.35);
  box-shadow: var(--inset);
  min-width: 78px;
}
.gm-readout .lbl { font-size: 8px; letter-spacing: 2px; color: #b89a55; }
.gm-readout .val {
  font-size: 21px; line-height: 1; color: var(--screen-ink);
  text-shadow: 0 0 8px rgba(244,200,110,.4);
  display: flex; align-items: baseline; gap: 3px;
}
.gm-readout .val .u { font-size: 9px; color: #a98a4a; letter-spacing: 1px; }
.gm-readout.tap { cursor: ns-resize; }

/* slider control (swing / master) */
.gm-ctrl { display: flex; flex-direction: column; gap: 5px; min-width: 96px; }
.gm-ctrl .ctl-lbl {
  font-size: 8.5px; letter-spacing: 2px; color: var(--ink-soft);
  display: flex; justify-content: space-between;
}
.gm-ctrl .ctl-lbl b { color: var(--ink); font-weight: 500; }
.gm-track-rng {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px; border-radius: 6px;
  background: var(--well);
  box-shadow: var(--inset);
  outline: none; cursor: pointer;
}
.gm-track-rng::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 18px; border-radius: 4px;
  background: var(--ink); border: 1px solid rgba(0,0,0,.2);
  box-shadow: 0 1px 2px rgba(0,0,0,.3);
  cursor: pointer;
}
.gm-track-rng.accent::-webkit-slider-thumb { background: var(--accent, var(--ink)); }

.gm-toggle {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 12px;
  border: 1px solid var(--line); border-radius: var(--ctrl-radius);
  background: var(--panel-2); color: var(--ink-soft);
  cursor: pointer; font-size: 10px; letter-spacing: 1.5px;
  transition: all .14s ease; white-space: nowrap;
  box-shadow: var(--shadow);
}
.gm-toggle .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ink-dim); transition: all .14s;
}
.gm-toggle.on { color: var(--ink); border-color: var(--accent, var(--ink)); }
.gm-toggle.on .dot { background: var(--accent, #1f9e6e); box-shadow: 0 0 8px var(--accent, #1f9e6e); }

.gm-export {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: var(--ctrl-radius);
  border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper);
  cursor: pointer; font-size: 11px; letter-spacing: 2px;
  transition: transform .08s ease, box-shadow .15s;
  box-shadow: var(--shadow);
}
.gm-export:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(60,46,20,.2); }
.gm-export:active { transform: translateY(1px); }
.gm-export svg { width: 14px; height: 14px; }

/* ============================================================
   BODY GRID  (patterns | sequencer | context)
   ============================================================ */
.gm-body {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 92px 1fr;
  grid-template-rows: 1fr auto;
  gap: 12px;
}

/* ---- pattern rail ---- */
.gm-patterns {
  display: flex; flex-direction: column;
  padding: 12px 10px; gap: 9px;
  position: relative;
  grid-row: 1 / 3; /* span both rows */
}
.gm-patterns .rail-lbl {
  font-size: 8px; letter-spacing: 2.5px; color: var(--ink-soft);
  text-align: center; margin-bottom: 2px;
}
.gm-pat {
  position: relative;
  flex: 1; min-height: 0;
  border: 1px solid var(--line); border-radius: var(--ctrl-radius);
  background: var(--panel-2);
  color: var(--ink-soft);
  cursor: pointer;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px;
  transition: all .13s ease;
  overflow: hidden;
}
.gm-pat:hover { transform: translateX(2px); }
.gm-pat .pat-id { font-size: 20px; line-height: 1; color: var(--ink); }
.gm-pat .pat-dots { display: flex; gap: 3px; }
.gm-pat .pat-dots i {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--ink-dim);
}
.gm-pat.has .pat-dots i { background: var(--ink-soft); }
.gm-pat.active {
  background: var(--panel);
  border-color: var(--ink);
  box-shadow: 0 0 0 2px var(--ink) inset, var(--shadow);
}
.gm-pat.active .pat-id { color: var(--ink); }
.gm-pat .pat-stripe {
  position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  opacity: 0; transition: opacity .15s;
}
.gm-pat.active .pat-stripe { opacity: 1; }

/* ============================================================
   SEQUENCER
   ============================================================ */
.gm-seq {
  padding: 12px; display: flex; flex-direction: column; min-height: 0;
  grid-row: 1;
  grid-column: 2;
}
.gm-seq-head {
  display: grid;
  grid-template-columns: 188px 1fr;
  align-items: center;
  margin-bottom: 8px;
}
.gm-seq-title { font-size: 9px; letter-spacing: 2.5px; color: var(--ink-soft); }
.gm-stepnums {
  display: grid; grid-template-columns: repeat(16, 1fr); gap: 5px;
}
.gm-stepnums span {
  font-size: 8px; color: var(--ink-dim); text-align: center;
}
.gm-stepnums span.beat { color: var(--ink-soft); }

.gm-rows { display: flex; flex-direction: column; gap: 7px; flex: 1; min-height: 0; }
.gm-row {
  display: grid;
  grid-template-columns: 188px 1fr;
  gap: 10px;
  align-items: stretch;
  --track-color: #888;
}
.gm-row.dim { opacity: .42; }

/* track header */
.gm-thead {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--ctrl-radius);
  position: relative;
  overflow: hidden;
}
.gm-thead .tcolor {
  width: 14px; align-self: stretch; border-radius: 3px;
  background: var(--track-color);
}
.gm-thead .tname-wrap { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.gm-thead .tname {
  font-size: 12px; letter-spacing: 1px; color: var(--ink);
  white-space: nowrap;
}
.gm-thead .tsample {
  font-size: 8px; color: var(--ink-soft);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  max-width: 96px;
}
.gm-thead .tbtns { display: flex; gap: 4px; }
.gm-ms {
  width: 22px; height: 22px; border-radius: 5px;
  border: 1px solid var(--line); background: var(--panel);
  color: var(--ink-soft); cursor: pointer; font-size: 9px;
  display: grid; place-items: center; transition: all .12s;
}
.gm-ms:hover { color: var(--ink); }
.gm-ms.m.on { background: #db4b3a; border-color: #db4b3a; color: #fff; }
.gm-ms.s.on { background: #e3bb39; border-color: #e3bb39; color: #2a241d; }
.gm-thead.selected { box-shadow: 0 0 0 2px var(--track-color) inset; }
.gm-thead { cursor: pointer; }

/* steps */
.gm-steps {
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  gap: 5px;
}
.gm-step {
  position: relative;
  border-radius: var(--cell-radius);
  background: var(--well);
  border: 1px solid var(--line);
  box-shadow: var(--inset);
  cursor: pointer;
  transition: background .1s ease, transform .06s ease, box-shadow .12s ease;
  min-height: 34px;
}
.gm-step:hover { transform: scale(1.06); z-index: 2; }
.gm-step.beat { border-color: var(--line); background: var(--well-2); }
.gm-step.on {
  background: var(--track-color);
  border-color: var(--track-color);
  box-shadow: 0 0 0 1px var(--track-color), 0 2px 5px color-mix(in srgb, var(--track-color) 40%, transparent);
}
.gm-step.on::after {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,.28), transparent 60%);
}
.gm-step.play {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}
.gm-step.on.play {
  transform: scale(1.04);
  filter: brightness(1.18) saturate(1.1);
}
.gm-col-playing { /* column tint via JS class on cells */ }

/* ============================================================
   CONTEXT PANEL
   ============================================================ */
.gm-ctx {
  display: flex; flex-direction: column;
  padding: 14px; gap: 12px; min-height: 0;
  overflow: hidden;
  grid-row: 2;
  grid-column: 2;
}
.gm-ctx-head { display: flex; align-items: center; gap: 9px; }
.gm-ctx-head .swatch {
  width: 16px; height: 16px; border-radius: 4px; background: var(--track-color);
}
.gm-ctx-head .t { font-size: 14px; letter-spacing: 1px; color: var(--ink); }
.gm-ctx-head .sub { font-size: 8.5px; letter-spacing: 1px; color: var(--ink-soft); margin-left: auto; }

/* drop zone + waveform */
.gm-drop {
  border: 1.5px dashed var(--line);
  border-radius: 9px;
  background: var(--well);
  padding: 10px;
  position: relative;
  transition: all .15s;
  cursor: copy;
}
.gm-drop.over { border-color: var(--track-color); background: color-mix(in srgb, var(--track-color) 12%, var(--well)); }
.gm-wave {
  display: flex; align-items: center; gap: 1.5px;
  height: 64px; position: relative;
}
.gm-wave .bar {
  flex: 1; border-radius: 1px;
  background: var(--track-color);
  opacity: .8;
  min-width: 1px;
}
.gm-wave .slice {
  position: absolute; top: -4px; bottom: -4px; width: 1px;
  background: var(--ink); opacity: .35;
}
.gm-wave .slice.major { opacity: .6; width: 1.5px; }
.gm-drop .dz-foot {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 8px; font-size: 8.5px; color: var(--ink-soft); letter-spacing: 1px;
}
.gm-drop .dz-foot .reverse-tag { color: var(--track-color); }

/* control grid */
.gm-ctx-scroll { display: flex; flex-direction: column; gap: 11px; min-height: 0; overflow: hidden; }
.gm-grp { display: flex; flex-direction: column; gap: 8px; }
.gm-grp-lbl {
  font-size: 8px; letter-spacing: 2.5px; color: var(--ink-soft);
  display: flex; align-items: center; gap: 8px;
  white-space: nowrap;
}
.gm-grp-lbl::after { content: ''; flex: 1 1 auto; height: 1px; background: var(--line); }

.gm-row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.gm-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

/* knob */
.gm-knob { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.gm-knob .dial {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--panel-2);
  border: 1px solid var(--line);
  position: relative; cursor: ns-resize;
  box-shadow: var(--shadow);
}
.gm-knob .dial .tick {
  position: absolute; left: 50%; top: 4px;
  width: 2px; height: 14px; border-radius: 2px;
  background: var(--track-color);
  transform-origin: 50% 19px;
}
.gm-knob .dial .arc { position: absolute; inset: -1px; border-radius: 50%; }
.gm-knob .k-lbl { font-size: 8px; letter-spacing: 1.5px; color: var(--ink-soft); }
.gm-knob .k-val { font-size: 10px; color: var(--ink); }

/* segmented */
.gm-seg { display: flex; gap: 0; border: 1px solid var(--line); border-radius: var(--ctrl-radius); overflow: hidden; background: var(--well); }
.gm-seg button {
  flex: 1; padding: 7px 4px; border: none; background: transparent;
  color: var(--ink-soft); font-family: var(--gm-mono); font-size: 9.5px;
  letter-spacing: 1px; cursor: pointer; transition: all .12s;
  border-right: 1px solid var(--line);
}
.gm-seg button:last-child { border-right: none; }
.gm-seg button.on { background: var(--track-color); color: #fff; }

/* mini toggle row */
.gm-mtog {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 11px; border: 1px solid var(--line); border-radius: var(--ctrl-radius);
  background: var(--panel-2); cursor: pointer; transition: all .12s;
}
.gm-mtog .mt-lbl { font-size: 9.5px; letter-spacing: 1px; color: var(--ink); }
.gm-mtog .mt-sw {
  width: 30px; height: 17px; border-radius: 9px; background: var(--well-2);
  position: relative; transition: background .15s; flex: none;
  box-shadow: var(--inset);
}
.gm-mtog .mt-sw i {
  position: absolute; top: 2px; left: 2px; width: 13px; height: 13px;
  border-radius: 50%; background: var(--ink-dim); transition: all .15s;
}
.gm-mtog.on .mt-sw { background: var(--track-color); }
.gm-mtog.on .mt-sw i { left: 15px; background: #fff; }

/* labeled slider */
.gm-lslider { display: flex; flex-direction: column; gap: 5px; }
.gm-lslider .ls-top { display: flex; justify-content: space-between; font-size: 9px; letter-spacing: 1px; }
.gm-lslider .ls-top .ls-l { color: var(--ink-soft); }
.gm-lslider .ls-top .ls-v { color: var(--ink); }

/* ============================================================
   VARIANT: STUDIO  (warm boutique — soft, hairline, airy)
   ============================================================ */
.gm--studio { --cell-radius: 8px; --pane-radius: 14px; --ctrl-radius: 9px; }
.gm--studio .gm-panel { box-shadow: 0 1px 0 #fffdf6 inset, 0 6px 18px rgba(60,46,20,.08); }
.gm-app.dark .gm--studio .gm-panel { box-shadow: 0 1px 0 rgba(255,240,200,.04) inset, 0 8px 22px rgba(0,0,0,.45); }
.gm--studio .gm-header-stripe {
  height: 4px; border-radius: 4px; width: 100%;
  margin-top: 8px;
}

/* ============================================================
   VARIANT: RACK  (vintage hardware unit — bezel, recessed, dense)
   ============================================================ */
.gm--rack { --cell-radius: 3px; --pane-radius: 4px; --ctrl-radius: 4px; padding: 14px; gap: 9px; }
.gm--rack .gm-panel {
  border-width: 1px;
  box-shadow: var(--inset), 0 1px 0 rgba(255,255,255,.25);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
}
.gm--rack .gm-transport { border-radius: 4px; }
.gm--rack .gm-logo { letter-spacing: 1px; }
.gm--rack .gm-thead {
  border-radius: 3px;
  background: linear-gradient(180deg, var(--panel-2), var(--well-2));
}
.gm--rack .gm-step { border-radius: 2px; box-shadow: var(--inset); }
.gm--rack .gm-pat { border-radius: 3px; }
.gm--rack .gm-rack-screws { position: absolute; inset: 0; pointer-events: none; }
.gm--rack .gm-rack-screws i {
  position: absolute; width: 7px; height: 7px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--line-2), var(--well));
  border: 1px solid var(--line);
}
.gm--rack .gm-rack-screws i.tl { top: 7px; left: 7px; }
.gm--rack .gm-rack-screws i.tr { top: 7px; right: 7px; }
.gm--rack .gm-rack-screws i.bl { bottom: 7px; left: 7px; }
.gm--rack .gm-rack-screws i.br { bottom: 7px; right: 7px; }
.gm--rack .gm-edge-stripe {
  position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  border-radius: 4px 0 0 4px;
}

/* ============================================================
   VARIANT: GRID  (playful rave-lite — chunky pads, bold blocks)
   ============================================================ */
.gm--grid { --cell-radius: 6px; --pane-radius: 12px; --ctrl-radius: 8px; }
.gm--grid .gm-panel { border-width: 2px; }
.gm--grid .gm-step { border-width: 2px; min-height: 38px; }
.gm--grid .gm-step.on { box-shadow: 0 0 0 2px var(--track-color), 0 3px 0 color-mix(in srgb, var(--track-color) 55%, #000); }
.gm--grid .gm-thead {
  border-width: 2px;
  background: color-mix(in srgb, var(--track-color) 10%, var(--panel-2));
}
.gm--grid .gm-thead .tcolor { width: 16px; }
.gm--grid .gm-pat { border-width: 2px; }
.gm--grid .gm-pat.active { box-shadow: 0 0 0 3px var(--ink) inset; }
.gm--grid .gm-play.active { box-shadow: 0 0 0 4px rgba(31,158,110,.25); }
.gm--grid .gm-trans-stripe { height: 6px; border-radius: 6px; }

/* small util */
.gm-hide { display: none !important; }

/* ============================================================
   TWEAK HOOKS (applied to .gm-app wrapper)
   ============================================================ */
.gm-app.rain-off .gm-rainbow,
.gm-app.rain-off .gm-rainbow-v { opacity: 0 !important; }
.gm-app.rain-bold .gm-header-stripe { height: 9px; }
.gm-app.rain-bold .gm--rack .gm-edge-stripe { width: 9px; }
.gm-app.rain-bold .gm-pat .pat-stripe { width: 6px; }

.gm-app.compact .gm { gap: 9px; padding: 13px; }
.gm-app.compact .gm-steps { gap: 4px; }
.gm-app.compact .gm-rows { gap: 5px; }
.gm-app.compact .gm-body { gap: 9px; }