:root {
  color-scheme: light;
  --paper: #ebe9df;
  --surface: #f8f7f1;
  --ink: #171714;
  --muted: #68675f;
  --line: #cbc8ba;
  --signal: #df4d28;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; color: var(--ink); background: linear-gradient(90deg, #00000005 1px, transparent 1px) 0 0 / 24px 24px, var(--paper); }
button, input, select { font: inherit; accent-color: var(--signal); }
input[type='time'] { width: 100%; min-height: 40px; padding: 9px; border: 1px solid var(--line); background: white; color: var(--ink); }
button, select { cursor: pointer; }
button:disabled, select:disabled { cursor: default; opacity: .5; }
header, main { width: min(1360px, calc(100% - 48px)); margin-inline: auto; }
header { display: flex; justify-content: space-between; align-items: end; gap: 24px; padding: 32px 0 24px; border-bottom: 1px solid var(--line); }
h1 { margin: 0; font-size: clamp(32px, 5vw, 52px); letter-spacing: -.055em; font-weight: 560; line-height: 1; }
header > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
main { display: grid; grid-template-columns: 300px minmax(0, 1fr); align-items: start; gap: 24px; padding: 24px 0 40px; }
.inspector, .tuning { display: grid; gap: 18px; min-width: 0; align-content: start; }
.inspector { grid-column: 1; grid-row: 1; }
.tuning { grid-column: 1; grid-row: 2; }
.simulator { grid-column: 2; grid-row: 1 / span 2; }
.control-section { padding: 18px; border: 1px solid var(--line); background: var(--surface); }
label, h2 { font-size: 12px; font-weight: 650; }
h2 { margin: 0; }
select, input[type='search'], input[type='text'] { display: block; width: 100%; min-width: 0; padding: 9px; border: 1px solid var(--line); border-radius: 0; background: white; color: var(--ink); }
select:not([size]), input[type='search'], input[type='text'] { min-height: 40px; margin-top: 8px; }
.font-note { margin: 0; color: var(--muted); font-size: 10px; }
select[size] { height: 208px; padding: 4px; }
option { padding: 5px 7px; }
.help { margin: 8px 0 18px; color: var(--muted); font-size: 11px; line-height: 1.5; }
#selectionNote { margin-bottom: 0; min-height: 32px; }
.list-heading { display: flex; justify-content: space-between; gap: 12px; margin: 18px 0 8px; }
#iconCount { font: 11px/1.4 ui-monospace, monospace; color: var(--muted); }
.settings { display: grid; gap: 9px; }
.settings h2 { margin-bottom: 9px; }
.settings label, .age-heading { display: flex; justify-content: space-between; gap: 12px; }
.settings output { font: 11px/1.4 ui-monospace, monospace; color: var(--muted); }
.settings input { width: 100%; min-height: 24px; margin: 0 0 7px; }
.settings input:disabled { opacity: .35; }
.settings .help { margin: -7px 0 8px; }
.simulator { min-width: 0; border: 1px solid var(--line); background: var(--surface); }
.screen-heading, .screen-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; padding: 14px 20px; }
.screen-heading { border-bottom: 1px solid var(--line); }
.screen-heading span, .screen-meta { font: 11px/1.5 ui-monospace, monospace; color: var(--muted); }
.download { padding: 6px 10px; border: 1px solid var(--line); background: white; font-size: 11px; }
.export-actions { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.copy { display: grid; place-items: center; width: 30px; height: 30px; padding: 5px; border: 1px solid var(--line); background: white; color: var(--ink); }
.copy svg { width: 18px; height: 18px; }
.copy .success-icon, .copy .failure-icon { display: none; }
.copy[data-state='success'] { color: #27764d; border-color: #27764d; }
.copy[data-state='success'] .copy-icon, .copy[data-state='failure'] .copy-icon { display: none; }
.copy[data-state='success'] .success-icon, .copy[data-state='failure'] .failure-icon { display: block; }
.copy[data-state='failure'] { color: #b33b27; border-color: #b33b27; }
.effect-preview { min-width: 0; background: var(--surface); }
.effect-heading { padding: 16px 20px; }
.effect-heading h3 { margin: 0; font-size: 13px; font-weight: 650; }
.effect-heading p { margin: 6px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.stroke-control { max-width: 280px; margin-top: 12px; }
.stroke-control label { display: flex; justify-content: space-between; gap: 12px; }
.stroke-control output { font: 11px/1.4 ui-monospace, monospace; color: var(--muted); }
.stroke-control input { display: block; width: 100%; min-height: 28px; margin: 6px 0 0; }
.stroke-control input:disabled { opacity: .35; }
.screen-stage { display: grid; place-items: center; padding: 24px 20px; background: #d8d5c9; }
/* Physical model: 85 x 64 mm screen inside a 15 mm frame, so the device is 115 x 94 mm. 1 mm = 0.8696cqw. */
.device { container-type: inline-size; width: min(100%, 1000px); }
.frame { position: relative; padding: 13.04cqw; border-radius: 2.6cqw; background: linear-gradient(#e5e5e3, #dcdddb); box-shadow: 0 0 2px .5px #35363633, 0 0 0 5px #f1f2f1, 0 0 0 6px #0000002e, 0 15px 35px #00000026, 0 2px 4px #00000018, inset 0 0 2px .5px #35363626; }
.screen-well { border-radius: .6cqw; overflow: hidden; background: #e7e6df; box-shadow: 0 0 0 1px #0000001f, inset 0 1px 3px #00000030; }
/* Capacitive pad: an invisible hit area over a 21 x 2.5 mm slot, aligned with the strip drawn on the screen. */
.touch { position: absolute; top: 3.04cqw; left: 64.4cqw; width: 18.48cqw; height: 6.96cqw; padding: 0; border: 0; background: transparent; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.touch:focus-visible { outline: 1px dotted #8d8c84; outline-offset: 2px; }
.led { position: absolute; inset: 50% 0 auto; height: 1.3cqw; margin-top: -.65cqw; border-radius: 99px; pointer-events: none; background: #c8c9c7; box-shadow: inset 0 1px 2px #00000050, inset 0 -1px 1px #ffffff99, 0 1px 0 #ffffffaa; }
.led::before, .led::after { content: ''; position: absolute; opacity: 0; transition: opacity .35s; }
.led::before { inset: 0; border-radius: inherit; background: #fff; box-shadow: 0 0 3px 1px #fff; }
.led::after { inset: -2.4cqw -4cqw; border-radius: 99px; background: radial-gradient(closest-side, #fff, #fffffff0 30%, #ffffff80 65%, transparent); filter: blur(4px); }
.touch[data-led='on'] .led { --level: .65; }
.touch[data-led='on']:hover .led { --level: .85; }
.touch[data-led='on']:active .led { --level: 1; }
.touch[data-led='on'] .led::before, .touch[data-led='on'] .led::after { opacity: var(--level); }
.touch[data-led='on']:hover .led::before, .touch[data-led='on']:hover .led::after { transition-duration: .15s; }
.touch[data-led='on']:active .led::before, .touch[data-led='on']:active .led::after { transition-duration: .05s; }
.settings label.check { justify-content: flex-start; align-items: center; gap: 8px; font-size: 12px; }
.settings input[type='checkbox'] { width: auto; min-height: 0; margin: 0; }
#restore { padding: 7px 10px; border: 1px solid var(--line); background: white; font-size: 11px; }
.device canvas { display: block; width: 100%; height: auto; background: white; mix-blend-mode: multiply; image-rendering: pixelated; }
.screen-meta { border-bottom: 1px solid var(--line); }
.aging { margin: 18px 20px 0; padding: 18px; background: var(--ink); color: white; }
.age-heading output { font: 12px/1.4 ui-monospace, monospace; }
.refresh-status { color: #c8c7bd; font: 11px/1.6 ui-monospace, monospace; }
#age { width: 100%; min-height: 32px; margin: 8px 0; }
.age-stops { position: relative; display: flex; justify-content: space-between; gap: 4px; }
.age-stops button { padding: 6px 0; border: 0; border-bottom: 2px solid transparent; background: transparent; color: #c8c7bd; font-size: 11px; }
.age-stops button[data-age='85'] { position: absolute; left: 85%; transform: translateX(-50%); }
.age-stops button[aria-pressed='true'] { border-color: var(--signal); color: white; }
.playback { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 16px; padding-top: 16px; border-top: 1px solid #45453e; }
#playAging { min-height: 40px; padding: 9px 16px; border: 0; background: var(--signal); color: white; font-size: 12px; font-weight: 650; }
.playback p { margin: 0; font-size: 10px; line-height: 1.6; color: #c8c7bd; }
#status { min-height: 38px; margin: 0; padding: 12px 20px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (min-width: 960px) {
  header, main { width: min(1600px, calc(100% - 32px)); }
  header { padding: 16px 0 14px; }
  h1 { font-size: 36px; }
  header > p { font-size: 11px; line-height: 1.4; }
  main { grid-template-columns: minmax(220px, 260px) minmax(0, 1fr) minmax(210px, 240px); gap: 12px; padding: 12px 0 20px; }
  .inspector, .tuning { gap: 12px; }
  .tuning { grid-column: 3; grid-row: 1; }
  .simulator { grid-column: 2; grid-row: 1 / span 2; align-self: start; }
  .control-section { padding: 12px; }
  .control-section > label { display: block; margin-top: 9px; }
  .control-section > label:first-child { margin-top: 0; }
  select:not([size]), input[type='search'], input[type='text'], input[type='time'] { min-height: 32px; margin-top: 4px; padding: 5px 7px; }
  select[size] { height: clamp(100px, 16vh, 150px); }
  option { padding: 3px 5px; }
  .help { margin: 4px 0 7px; line-height: 1.3; }
  #selectionNote { min-height: 0; }
  .list-heading { margin: 9px 0 4px; }
  .settings { gap: 5px; }
  .settings h2 { margin-bottom: 3px; }
  .settings .help { margin: 0 0 3px; }
  .settings input { margin-bottom: 2px; }
  .stroke-control { max-width: none; margin-top: 0; }
  .stroke-control input { margin-top: 0; }
  .screen-heading, .screen-meta { padding: 8px 12px; }
  .screen-stage { padding: 12px; }
  .device { width: min(100%, calc((100dvh - 430px) * 115 / 94)); }
  .aging { margin: 8px 12px 0; padding: 10px 12px; }
  #age { min-height: 22px; margin: 2px 0; }
  .age-stops button { padding: 3px 0; }
  .refresh-status { margin: 6px 0; }
  .playback { margin-top: 7px; padding-top: 7px; }
  #playAging { min-height: 32px; padding: 6px 10px; }
  #status { min-height: 0; padding: 7px 12px; }
}
@media (max-width: 760px) {
  header, main { width: calc(100% - 24px); }
  header { align-items: start; flex-direction: column; gap: 14px; padding-top: 24px; }
  main { grid-template-columns: 1fr; gap: 18px; }
  .inspector { grid-template-columns: 1fr 1fr; gap: 12px; }
  .tuning { grid-template-columns: 1fr 1fr; gap: 12px; }
  .simulator { grid-column: 1; grid-row: 3; }
  .control-section { padding: 14px; }
  select[size] { height: 210px; }
}
@media (max-width: 440px) {
  .inspector { grid-template-columns: 1fr; }
  .tuning { grid-template-columns: 1fr; }
  .settings { grid-template-columns: 1fr 1fr; column-gap: 16px; }
  .settings h2, .settings .help, .settings label, .settings input, .settings select { grid-column: 1 / -1; }
  .screen-stage { padding: 18px; }
  .aging { margin: 12px 12px 0; padding: 14px; }
  .screen-heading, .screen-meta { padding: 12px; }
  .playback p { font-size: 11px; }
}