/* ── CSS variables ───────────────────────────────────── */
:root {
  /* palette */
  --bg:        #1a1a1e;
  --surface:   #242428;
  --raised:    #2e2e34;
  --border:    #3a3a42;
  --border-lo: #2a2a30;
  --fg:        #e8e8ec;
  --fg-dim:    #888898;
  --fg-faint:  #50505a;
  --amber:     #f0a040;
  --amber-lo:  #7a4a10;
  --green:     #60d878;
  --red:       #e05050;
  --blue:      #6ab0f0;
  --screen-bg: #050508;

  /* responsive screen width: scales between 300px and 800px */
  /* on wide screens: total = device (~860px) + gap (24px) + panel (min 380px) ≈ 1264px */
  --screen-w:   clamp(280px, calc(50vw - 80px), 652px);
  --device-pad: 24px;
  --device-w:   calc(var(--screen-w) + var(--device-pad) * 2);
}

/* on narrower viewports: panel stacks below device, screen fills viewport */
@media (max-width: 1100px) {
  :root { --screen-w: clamp(300px, calc(100vw - 56px), 750px); }
}

/* ── reset ───────────────────────────────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  padding: 20px 28px;
  min-height: 100vh;
}

/* ── app wrapper (max-width, centered) ───────────────── */
.app {
  max-width: 1400px;
  margin: 0 auto;
}

/* ── header ──────────────────────────────────────────── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--amber);
}
h1 .dim { color: var(--fg-dim); font-weight: 400; }

.status { display: flex; align-items: center; gap: 8px; }
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font-size: 12px;
  background: var(--surface);
}
.badge.on  { color: var(--green); border-color: #2a5a36; background: #131d16; }
.badge.off { color: var(--red);   border-color: #5a2a2a; background: #1d1313; }

/* ── main layout ─────────────────────────────────────── */
main {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  flex-wrap: wrap;
}


/* ── device card ─────────────────────────────────────── */
.device {
  flex-shrink: 0;
  width: var(--device-w);
  background: linear-gradient(160deg, #28282e 0%, #1c1c20 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: var(--device-pad);
  box-shadow: 0 8px 32px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.04);
}

/* screen */
.screen-wrap {
  background: var(--screen-bg);
  border-radius: 6px;
  padding: 10px;
  border: 1px solid #0a0a10;
  box-shadow: inset 0 0 20px rgba(0,0,0,.8), 0 0 0 1px #111;
}
#screen {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 1;
  image-rendering: pixelated;
}

/* ── controls top (K1 + E1, upper left) ──────────────── */
.controls-top {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 16px;
}

/* ── screen + right controls (E2/K2, E3/K3) ─────────── */
.screen-area {
  display: flex;
  align-items: stretch;
  gap: 14px;
}
.screen-area .screen-wrap { flex: 1; min-width: 0; }

.controls-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-shrink: 0;
}
.right-encs { display: flex; gap: 10px; }
.right-keys { display: flex; gap: 10px; }

/* smaller dials for right-side controls */
.enc-sm .dial-wrap { width: 52px; height: 52px; }
.key-sm {
  width: 48px; height: 48px;
  font-size: 11px; border-radius: 8px;
}

/* K1+E1: side by side, dial vertically centered with button */
.ctrl-pair-h {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
}

/* E2+K2 / E3+K3: encoder above key, both horizontally centered */
.ctrl-pair-v {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

/* encoder group — column internally */
.enc {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}
.enc label {
  font-size: 12px;
  color: var(--fg-dim);
  letter-spacing: .5px;
  text-align: center;
}
.enc label kbd {
  display: inline-block;
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 11px;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  color: var(--fg);
  margin: 0 2px;
}

/* the knob */
.dial-wrap {
  position: relative;
  width: 72px;
  height: 72px;
}
.dial-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(var(--amber-lo) 0deg, transparent 0deg);
}
.dial {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 32%, #46464e, #1e1e24);
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0,0,0,.6), inset 0 1px 0 rgba(255,255,255,.08);
  cursor: ns-resize;
  user-select: none;
  transition: box-shadow .1s;
}
.dial:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,255,255,.1),
              0 0 0 2px var(--amber-lo);
}
.dial:active { box-shadow: 0 2px 6px rgba(0,0,0,.7), 0 0 0 2px var(--amber); }

.dial-dot {
  position: absolute;
  top: 6px;
  left: 50%;
  width: 4px;
  height: 14px;
  border-radius: 2px;
  background: var(--amber);
  transform: translateX(-50%);
  box-shadow: 0 0 6px var(--amber);
}

.enc-value { display: none; }

/* key buttons */
.key {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(160deg, #36363e, #24242a);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .5px;
  gap: 4px;
  transition: background .08s, box-shadow .08s, border-color .08s;
  box-shadow: 0 4px 8px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,.06);
  user-select: none;
  flex-shrink: 0;
}
.key kbd {
  font-size: 12px;
  font-weight: 700;
  color: var(--fg-dim);
  background: none;
  border: none;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
}
.key:hover {
  background: linear-gradient(160deg, #3e3e48, #2c2c32);
  border-color: var(--amber-lo);
}
.key.active {
  background: var(--amber);
  color: #111;
  border-color: var(--amber);
  box-shadow: 0 0 16px rgba(240,160,64,.4), 0 2px 4px rgba(0,0,0,.4);
}
.key.active kbd { color: #5a3a00; }

/* ── side panel ──────────────────────────────────────── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-section {
  border-top: 1px solid var(--border-lo);
  padding-top: 12px;
}

.row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.row label {
  width: 68px;
  color: var(--fg-dim);
  flex-shrink: 0;
  font-size: 13px;
}
.unit { color: var(--fg-faint); font-size: 12px; }

.script-browser-row { flex-wrap: nowrap; }
.script-browser-row select { flex: 1; min-width: 0; }
#script-folder { flex: 0 0 auto; max-width: 120px; }

select,
input[type="text"],
input[type="number"] {
  background: var(--raised);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color .15s;
}
select { flex: 1; cursor: pointer; }
select:focus, input:focus { border-color: var(--amber); }

input[type="number"] { width: 70px; }
input[type="checkbox"] { accent-color: var(--amber); cursor: pointer; }

button {
  background: var(--raised);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 14px;
  cursor: pointer;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  transition: background .1s, border-color .1s, color .1s;
}
button:hover { background: #3a3a42; border-color: var(--amber-lo); color: var(--amber); }

#load-btn {
  background: var(--amber);
  color: #111;
  border-color: var(--amber);
  font-weight: 700;
}
#load-btn:hover { background: #f8b858; border-color: #f8b858; }
#reload-btn { padding: 7px 10px; font-size: 15px; }

.chk-label {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--fg-dim);
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}

.repl input { width: 100%; }

/* console — keep monospace */
.console {
  background: #0e0e12;
  border: 1px solid var(--border-lo);
  border-radius: 6px;
  height: 120px;
  overflow-y: auto;
  padding: 8px 10px;
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 11px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--fg-dim);
}
.console .err   { color: #e07070; }
.console .info  { color: #70a8d0; }
.console .print { color: #a8d890; }

/* ── left column: norns only ─────────────────────────── */
.left-col {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

/* ── right column: arc, grid, panel ─────────────────── */
.devices-extra {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
  max-width: var(--device-w);
  min-width: 280px;
}

@media (max-width: 900px) {
  body { padding: 12px 16px; }
  main { flex-direction: column; align-items: stretch; }
  .left-col { width: 100%; align-items: stretch; }
  .device { width: 100%; }
  .devices-extra { max-width: 100%; width: 100%; }

  /* controls back below screen on mobile */
  .screen-area { flex-direction: column; align-items: stretch; }
  .controls-right {
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    gap: 20px;
  }
}

.grid-panel,
.arc-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  width: 100%;
  flex: 1;
  overflow: hidden;
}

.dev-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  color: var(--fg-dim);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hidden { display: none !important; }

#midi-connect {
  padding: 4px 10px;
  font-size: 11px;
  color: var(--amber);
  border-color: var(--amber-lo);
  flex-shrink: 0;
}

/* grid — fills full panel width, only when visible */
#grid:not(.hidden) {
  display: grid !important;
  grid-template-columns: repeat(16, 1fr) !important;
  gap: 4px;
  width: 100%;
}
#grid .cell {
  aspect-ratio: 1;
  width: auto !important;
  min-width: 20px;
  min-height: 20px;
  border-radius: 4px;
  background: #1a1a1e;
  border: 1px solid #2a2a32;
  cursor: pointer;
  transition: background .05s;
}
#grid .cell:hover { border-color: var(--amber-lo); }

/* arc canvas — fills panel width, scales proportionally */
#arc {
  display: block;
  width: 100%;
  height: auto;
  background: #0a0a0e;
  border-radius: 8px;
}

/* ── params panel ────────────────────────────────────── */
.params-header { justify-content: space-between; }

.params-toggle {
  cursor: pointer;
  color: var(--fg-dim);
  font-size: 13px;
  user-select: none;
  letter-spacing: .5px;
}
.params-toggle:hover { color: var(--amber); }
.params-count { color: var(--fg-faint); font-size: 11px; }

.params-panel.collapsed { display: none; }

.params-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0 10px;
  border-bottom: 1px solid var(--border-lo);
}
.params-toolbar button { padding: 4px 12px; font-size: 12px; }
#pset-n { width: 44px; padding: 4px 6px; font-size: 12px; }

/* ── saved-pset list ─────────────────────────────────── */
.pset-list { display: flex; flex-direction: column; gap: 2px; padding: 6px 0; }
.pset-list:empty { display: none; }
.pset-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 4px;
  font-size: 12px;
  border-radius: 3px;
}
.pset-row:hover { background: var(--border-lo); }
.pset-row.is-default { background: rgba(255,176,0,0.08); }
.pset-num  { color: var(--fg-faint); font-variant-numeric: tabular-nums; min-width: 1.6em; }
.pset-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pset-act  { padding: 2px 8px; font-size: 11px; }
.pset-def.on { color: var(--amber); border-color: var(--amber-lo); }
.pset-del  { color: var(--fg-faint); }
.pset-del:hover { color: #ff5a5a; }

.params-list {
  overflow-y: visible;
}

.param-sep {
  color: var(--fg-faint);
  font-size: 10px;
  padding: 10px 0 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-top: 1px solid var(--border-lo);
  margin-top: 4px;
}
.param-sep:first-child { border-top: none; margin-top: 0; }

.param-group-wrap {
  border-top: 1px solid var(--border-lo);
  margin-top: 2px;
}
.param-group {
  color: var(--amber);
  font-size: 11px;
  padding: 7px 4px 5px;
  font-weight: 700;
  letter-spacing: .5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}
.param-group:hover { color: var(--fg); }
.param-group-arrow { font-size: 9px; flex-shrink: 0; }
.param-group-body { display: none; }
.param-group-body.open { display: block; }

.param-row {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border-lo);
}
.param-row.indented .param-name { padding-left: 10px; }

.param-name {
  width: 110px;
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--fg-dim);
  font-size: 11px;
  cursor: default;
}

.param-ctrl {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.param-slider {
  flex: 1;
  height: 3px;
  accent-color: var(--amber);
  cursor: pointer;
  min-width: 0;
}

.param-select {
  flex: 1;
  font-size: 11px;
  padding: 3px 5px;
  min-width: 0;
}

.param-check { accent-color: var(--amber); cursor: pointer; }

.param-trigger-btn {
  padding: 3px 8px;
  font-size: 11px;
  color: var(--amber);
  border-color: var(--amber-lo);
}

.param-val {
  width: 68px;
  flex-shrink: 0;
  text-align: right;
  color: var(--fg);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.param-learn {
  padding: 0 3px;
  font-size: 11px;
  color: var(--fg-faint);
  border-color: transparent;
  background: transparent;
  flex-shrink: 0;
  line-height: 1;
}
.param-learn:hover { color: var(--fg-dim); background: transparent; }
.param-learn.mapped { color: var(--green); }
.param-learn.learning {
  color: var(--amber);
  animation: blink .5s step-end infinite;
}
@keyframes blink { 50% { opacity: .2; } }

.param-file-path {
  flex: 1;
  font-size: 10px;
  color: var(--fg-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.param-browse {
  padding: 3px 8px;
  font-size: 11px;
  flex-shrink: 0;
  color: var(--blue);
  border-color: var(--border);
}
.param-browse:hover { color: var(--amber); border-color: var(--amber-lo); }

/* ── file picker modal ───────────────────────────────── */
.fp-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.fp-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: min(460px, calc(100vw - 40px));
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.fp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--border-lo);
}
.fp-title {
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
#fp-close, #maiden-close {
  background: none;
  border: none;
  color: var(--fg-faint);
  font-size: 15px;
  padding: 0 4px;
  cursor: pointer;
}
#fp-close:hover, #maiden-close:hover { color: var(--fg); background: none; }

/* catalog overlay */
.catalog-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: min(680px, calc(100vw - 40px));
  height: min(640px, calc(100vh - 40px));
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#catalog-close {
  background: none; border: none;
  color: var(--fg-faint); font-size: 15px; padding: 0 4px; cursor: pointer;
}
#catalog-close:hover { color: var(--fg); background: none; }
#catalog-search {
  flex: 1; margin: 0 10px;
  padding: 4px 8px; font-size: 12px;
  background: var(--raised); color: var(--fg);
  border: 1px solid var(--border); border-radius: 6px;
}
.catalog-status {
  padding: 4px 18px;
  font-size: 11px;
  color: var(--fg-faint);
  border-bottom: 1px solid var(--border-lo);
  min-height: 22px;
}
.catalog-list {
  flex: 1; overflow-y: auto;
  padding: 6px 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.catalog-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 8px;
  border-bottom: 1px solid var(--border-lo);
}
.catalog-item:last-child { border-bottom: none; }
.catalog-info { flex: 1; min-width: 0; }
.catalog-name {
  font-size: 13px; color: var(--fg); font-weight: 500;
}
.catalog-author { font-size: 11px; color: var(--fg-faint); margin-left: 6px; }
.catalog-desc {
  font-size: 11px; color: var(--fg-dim);
  margin-top: 2px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.catalog-tags { margin-top: 3px; display: flex; gap: 4px; flex-wrap: wrap; }
.catalog-tag {
  font-size: 10px; color: var(--fg-faint);
  border: 1px solid var(--border-lo); border-radius: 3px;
  padding: 1px 5px;
}
.catalog-action { flex-shrink: 0; }
.catalog-action button { font-size: 11px; padding: 3px 8px; min-width: 64px; }
.catalog-installed { font-size: 11px; color: var(--green); padding: 4px 8px; }

/* maiden script editor */
.maiden-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: min(900px, calc(100vw - 40px));
  height: min(680px, calc(100vh - 40px));
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
/* maiden header toolbar */
.maiden-header-actions {
  display: flex;
  gap: 4px;
  flex: 1;
  margin: 0 10px;
}
.maiden-header-actions button {
  font-size: 11px;
  padding: 2px 7px;
  min-width: unset;
}

/* maiden body = tree + editor side by side */
.maiden-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* file tree sidebar */
.maiden-tree {
  width: 190px;
  flex-shrink: 0;
  border-right: 1px solid var(--border-lo);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.maiden-tree-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.mt-item {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  user-select: none;
  color: var(--fg-dim);
}
.mt-item:hover { background: var(--raised); color: var(--fg); }
.mt-item.selected { background: var(--raised); color: var(--amber); }
.mt-item.dir { color: var(--fg); font-weight: 500; }
.mt-item.dir:hover { color: var(--amber); }
.mt-arrow { font-size: 9px; flex-shrink: 0; transition: transform .15s; }
.mt-arrow.open { transform: rotate(90deg); }
.mt-name { overflow: hidden; text-overflow: ellipsis; flex: 1; }
.mt-children { border-left: 1px solid var(--border-lo); margin-left: 14px; }

.maiden-editor {
  flex: 1;
  font-size: 13px;
  overflow: hidden;
}
.maiden-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px 14px;
  border-top: 1px solid var(--border-lo);
}
.maiden-status {
  flex: 1;
  font-size: 11px;
  color: var(--fg-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.maiden-status.ok  { color: var(--green); }
.maiden-status.err { color: var(--red); }
.fp-breadcrumb {
  padding: 6px 18px;
  font-size: 11px;
  color: var(--fg-faint);
  border-bottom: 1px solid var(--border-lo);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.fp-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.fp-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  color: var(--fg-dim);
  transition: background .08s;
  user-select: none;
}
.fp-item:hover   { background: var(--raised); color: var(--fg); }
.fp-item.dir     { color: var(--amber); }
.fp-item.dir:hover { background: var(--raised); }
.fp-item.up      { color: var(--fg-faint); font-size: 11px; }
.fp-item-icon    { width: 14px; text-align: center; font-size: 13px; flex-shrink: 0; }
.fp-item-name    { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fp-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--fg-faint);
  font-size: 11px;
}
.fp-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px 14px;
  border-top: 1px solid var(--border-lo);
}
.fp-selected-name {
  flex: 1;
  font-size: 11px;
  color: var(--fg-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#fp-cancel { font-size: 12px; padding: 4px 14px; }

/* ── help / settings buttons ─────────────────────────── */
#help-btn, #settings-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--fg-dim);
  font-size: 12px;
  width: 22px;
  height: 22px;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  flex-shrink: 0;
}
#help-btn:hover, #settings-btn:hover { color: var(--amber); border-color: var(--amber-lo); background: none; }
/* Larger glyph; nudge up ~2px for optical centre (the ⚙ sits low on its baseline). */
#settings-btn { font-size: 16px; }
#settings-btn span { display: block; transform: translateY(-2px); }

/* ── settings modal rows ─────────────────────────────── */
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
}
.setting-row label { color: var(--fg); font-size: 13px; }
.setting-row select { font-size: 12px; padding: 3px 6px; min-width: 180px; }
.setting-hint { color: var(--fg-faint); font-size: 11px; margin-top: 8px; line-height: 1.5; }
.setting-sep { border: none; border-top: 1px solid var(--border-lo); margin: 14px 0 6px; }
.setting-row input[type="range"] { width: 180px; accent-color: var(--amber); }
.setting-row input[type="color"] {
  width: 44px; height: 26px; padding: 0;
  border: 1px solid var(--border); border-radius: 4px; background: none; cursor: pointer;
}
.setting-btn {
  background: var(--raised); color: var(--fg); border: 1px solid var(--border);
  border-radius: 4px; padding: 5px 12px; font-size: 12px; cursor: pointer;
}
.setting-btn:hover { border-color: var(--amber-lo); color: var(--amber); }

/* ── help / README modal ─────────────────────────────── */
.help-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.help-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: min(680px, calc(100vw - 40px));
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.help-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--border-lo);
  flex-shrink: 0;
}
.help-title {
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
#help-close {
  background: none;
  border: none;
  color: var(--fg-faint);
  font-size: 15px;
  padding: 0 4px;
  cursor: pointer;
}
#help-close:hover { color: var(--fg); background: none; }
.help-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fg-dim);
}
.help-body h1, .help-body h2, .help-body h3 {
  color: var(--fg);
  margin: 1.2em 0 0.4em;
  font-size: 15px;
  letter-spacing: 0.5px;
}
.help-body h1 { font-size: 18px; color: var(--amber); margin-top: 0; }
.help-body h2 { color: var(--amber); font-size: 15px; }
.help-body p  { margin: 0.4em 0 0.8em; }
.help-body ul, .help-body ol { padding-left: 1.4em; margin: 0.4em 0 0.8em; }
.help-body li { margin: 0.2em 0; }
.help-body code {
  background: var(--raised);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: monospace;
  font-size: 11px;
  color: var(--fg);
}
.help-body strong { color: var(--fg); }
.help-body a { color: var(--blue); text-decoration: none; }
.help-body a:hover { text-decoration: underline; }
.help-body hr { border: none; border-top: 1px solid var(--border-lo); margin: 1em 0; }

/* touch: prevent the browser from scrolling/zooming while operating controls */
.dial, .key, #arc, #grid .cell, .vfader input[type="range"] {
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

/* ── mixer + tape panel (under norns) ─────────────────── */
.mixtape {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}
.mixtape-sec {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
}
.mixtape-sec .dev-header { margin-bottom: 10px; }
.mixtape-sec .dev-header button {
  padding: 3px 10px;
  font-size: 11px;
}
.hdr-btns { display: flex; gap: 6px; }

/* reverb + compressor fx panels */
.fx-section-label {
  font-size: 11px; color: var(--fg-faint);
  text-transform: uppercase; letter-spacing: 1px;
  margin-bottom: 4px;
}
.fx-body { display: flex; flex-direction: column; gap: 6px; }
.fx-row {
  display: flex; align-items: center; gap: 6px;
}
.fx-row label {
  width: 46px; font-size: 11px; color: var(--fg-dim); flex-shrink: 0;
}
.fx-row input[type="range"] {
  flex: 1; accent-color: var(--amber); cursor: pointer;
}
.fx-val {
  width: 38px; text-align: right;
  font-size: 11px; color: var(--fg-faint); flex-shrink: 0;
}

.mixer-body {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  justify-content: space-between;
}
.mixer-body.hidden { display: none; }

.mix-strip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
}
.mix-strip label {
  font-size: 10px;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.vfader {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.vfader input[type="range"] {
  writing-mode: vertical-lr;
  direction: rtl;
  width: 6px;
  height: 120px;
  accent-color: var(--amber);
  cursor: pointer;
}
.strip-meter {
  width: 16px;
  height: 120px;
  background: #0a0a0e;
  border-radius: 3px;
  border: 1px solid var(--border-lo);
}

.tape-body {
  display: flex;
  align-items: center;
  gap: 8px;
}
.tape-body.hidden { display: none; }
.tape-btn {
  padding: 6px 14px;
  font-size: 12px;
}
#tape-rec.armed { color: #ff5a5a; border-color: #7a2020; }
#tape-loop.active { color: var(--amber); border-color: var(--amber-lo); }
#tape-play.active { color: #40c040; border-color: #206020; }
#tape-status { font-size: 11px; color: var(--fg-faint); margin-left: auto; }