:root {
  color-scheme: dark;
  --background: #05070b;
  --surface: #0b0f16;
  --line: #252b35;
  --text: #a7adb7;
  --bright: #d8d2c5;
  --digital: #65d7e5;
  --physical: #f18aa5;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--background);
  color: var(--text);
  font-family: Inter, "IBM Plex Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  padding: 24px;
}

button,
kbd,
code {
  font: inherit;
}

.project-shell {
  width: min(1600px, 100%);
  margin: 0 auto;
}

.project-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  padding: 0 0 18px;
}

.eyebrow,
h1,
.subtitle,
.project-footer p {
  margin: 0;
}

.eyebrow {
  color: #69717d;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
}

h1 {
  margin-top: 5px;
  color: var(--bright);
  font-size: clamp(22px, 2.2vw, 34px);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.subtitle {
  margin-top: 3px;
  font-size: 13px;
  letter-spacing: 0.035em;
}

.frame-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 8px;
}

.frame-controls button {
  appearance: none;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  padding: 8px 14px;
  font-size: 17px;
  letter-spacing: 0.03em;
}

.frame-controls button span {
  margin-right: 7px;
  color: #5d6672;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
}

.frame-controls button:hover,
.frame-controls button:focus-visible {
  border-color: #4f5a68;
  color: var(--bright);
  outline: none;
}

.frame-controls button[aria-pressed="true"] {
  border-color: var(--bright);
  color: var(--bright);
}

.frame-controls .save-button {
  margin-left: 10px;
  border-color: #3d4652;
  color: var(--digital);
}

.frame-controls .primary-control {
  border-color: var(--digital);
  color: var(--digital);
}

.canvas-stage {
  position: relative;
  overflow: hidden;
  border: 1px solid #1b2029;
  background: var(--background);
}

#canvas-holder {
  line-height: 0;
}

#canvas-holder canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
}

#loading-message {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  color: #69717d;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.project-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 12px;
  color: #626a76;
  font-size: 11px;
}

.timeline-control {
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) 78px;
  align-items: center;
  gap: 14px;
  padding: 12px 0 0;
  color: #737c89;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
}

.timeline-control input {
  width: 100%;
  accent-color: var(--digital);
}

.timeline-control output {
  color: var(--bright);
  text-align: right;
}

kbd,
code {
  color: #858e9b;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

@media (max-width: 820px) {
  body {
    padding: 14px;
  }

  .project-header,
  .project-footer {
    align-items: start;
    flex-direction: column;
  }

  .timeline-control {
    grid-template-columns: 1fr auto;
  }

  .timeline-control label {
    grid-column: 1 / -1;
  }

  .frame-controls {
    justify-content: start;
  }

  .frame-controls .save-button {
    margin-left: 0;
  }
}