.sl-demo-shell {
  --bg: #faf9f7;
  --fg: #1a1a1a;
  --muted: #8a8580;
  --stage-bg: #f7f6f2;
  --stage-border: #e8e4dc;
  --key-bg: #ffffff;
  --key-bg-bottom: #efece5;
  --key-border: #d3cfc5;
  --key-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --key-fg: #2a2a2a;
  --key-eligible-bg: #fff4c4;
  --key-eligible-border: #e6c25a;
  --key-eligible-fg: #6b4f12;
  --key-pressed-bg: #ffd450;
  --key-pressed-border: #c89e25;
  --key-error-bg: #fbdada;
  --key-error-border: #d97474;
  --key-error-fg: #8a1f1f;
  --theater-bg: #ffffff;
  --theater-border: #e0ddd2;
  --chip-bg: #2a2a2a;
  --chip-fg: #ffffff;
  --chip-error: #c83a3a;
  --accent: #2563eb;
  --finder-sidebar: #f4f2ec;
  --idle-blur: rgba(245, 243, 237, 0.55);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  margin: 0 auto;
  padding: 0 0 8px;
}
@media (prefers-color-scheme: dark) {
  .sl-demo-shell {
    --bg: #161616;
    --fg: #f0efed;
    --muted: #8c8a86;
    --stage-bg: #1f1f1f;
    --stage-border: #2e2e2e;
    --key-bg: #3a3a3a;
    --key-bg-bottom: #2c2c2c;
    --key-border: #4a4a4a;
    --key-shadow: 0 1px 0 rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
    --key-fg: #f0efed;
    --key-eligible-bg: #4d3f1a;
    --key-eligible-border: #8a6f30;
    --key-eligible-fg: #ffe28a;
    --key-pressed-bg: #b89240;
    --key-pressed-border: #d6b260;
    --key-error-bg: #4a2222;
    --key-error-border: #8a3a3a;
    --key-error-fg: #ffb0b0;
    --theater-bg: #2a2a2a;
    --theater-border: #3a3a3a;
    --finder-sidebar: #2e2e2e;
    --idle-blur: rgba(31,31,31,0.55);
  }
}

.sl-demo-shell, .sl-demo-shell * { box-sizing: border-box; }
.sl-demo {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  outline: none;
  cursor: pointer;
}
.sl-demo:focus-visible .sl-stage,
.sl-demo.armed .sl-stage {
  box-shadow: 0 0 0 3px rgba(37,99,235,0.22);
}
.sl-demo.armed { cursor: default; }
.sl-demo:not(.armed):hover .sl-stage {
  box-shadow: 0 8px 28px rgba(0,0,0,0.08), 0 0 0 1px rgba(37,99,235,0.12);
}

.sl-stage {
  background: var(--stage-bg);
  border: 1px solid var(--stage-border);
  border-radius: 14px;
  padding: 20px 22px 22px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: center;
  position: relative;
  min-height: 230px;
  transition: box-shadow 160ms;
}

/* ---- Keyboard ---- */
.sl-keyboard {
  display: flex;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  user-select: none;
}
.sl-row { display: flex; flex-shrink: 0; gap: 4px; }
.sl-row.rs { width: 100%; justify-content: center; }
.sl-key {
  width: 30px;
  height: 32px;
  border-radius: 5px;
  background: linear-gradient(to bottom, var(--key-bg) 0%, var(--key-bg-bottom) 100%);
  border: 1px solid var(--key-border);
  box-shadow: var(--key-shadow);
  color: var(--key-fg);
  font-size: 11px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 140ms, border-color 140ms, transform 80ms, box-shadow 80ms, opacity 200ms, color 140ms;
}
.sl-key.pressed {
  background: var(--key-pressed-bg);
  border-color: var(--key-pressed-border);
  color: #2a2010;
  transform: translateY(1px);
  box-shadow: 0 0 0 1px var(--key-pressed-border) inset;
}
.sl-key.error {
  background: var(--key-error-bg);
  border-color: var(--key-error-border);
  color: var(--key-error-fg);
  animation: sl-shake 0.4s;
}
.sl-key.space {
  width: 200px;
  font-size: 10px;
  color: var(--muted);
  position: relative;
}
.sl-demo.awaiting-space .sl-key.space {
  color: var(--fg);
  animation: sl-space-pulse 1500ms ease-in-out infinite;
}
.sl-demo.awaiting-space .sl-key.space::after {
  content: "Hold Spacebar";
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--chip-fg);
  font-size: 10px;
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
}
.sl-demo.awaiting-space .sl-key.space::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: calc(100% + 3px);
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--chip-bg);
  pointer-events: none;
}
@keyframes sl-space-pulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(37,99,235,0.14), var(--key-shadow); }
  50% { box-shadow: 0 0 0 5px rgba(37,99,235,0.08), var(--key-shadow); }
}
@keyframes sl-shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-3px); }
  40%, 80% { transform: translateX(3px); }
}

/* ---- Theater ---- */
.sl-theater { display: flex; justify-content: center; }
.sl-window {
  width: 260px;
  height: 180px;
  background: var(--theater-bg);
  border: 1px solid var(--theater-border);
  border-radius: 9px;
  overflow: hidden;
  box-shadow: none;
  display: flex;
  flex-direction: column;
  transition: opacity 160ms ease-out;
}
.sl-window-flying {
  position: relative;
  z-index: 10;
  will-change: transform, opacity;
}
.sl-window-bar {
  height: 22px;
  border-bottom: 1px solid var(--theater-border);
  display: flex;
  align-items: center;
  padding: 0 9px;
  gap: 6px;
  flex-shrink: 0;
}
.sl-dot { width: 9px; height: 9px; border-radius: 50%; }
.sl-dot.red { background: #ff5f57; }
.sl-dot.yellow { background: #ffbd2e; }
.sl-dot.green { background: #28c940; }
.sl-window-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.sl-idle-label {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.sl-app, .sl-browser, .sl-finder {
  width: 100%; height: 100%;
  display: flex;
}
.sl-app {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.sl-app-name { font-size: 12px; font-weight: 500; }

.sl-browser { flex-direction: column; }
.sl-browser-addr {
  height: 22px;
  background: var(--stage-bg);
  border-bottom: 1px solid var(--theater-border);
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 10px;
  color: var(--muted);
  font-family: -apple-system, "SF Mono", ui-monospace, monospace;
}
.sl-browser-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
}

.sl-finder { flex-direction: row; }
.sl-finder-sidebar {
  width: 78px;
  background: var(--finder-sidebar);
  border-right: 1px solid var(--theater-border);
  padding: 8px 6px;
  font-size: 9.5px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.sl-finder-side-item { padding: 2px 5px; border-radius: 3px; }
.sl-finder-side-item.active {
  background: var(--accent);
  color: #fff;
}
.sl-finder-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.sl-finder-name { font-size: 11px; font-weight: 500; }
.sl-action-icon { display: inline-flex; align-items: center; justify-content: center; }

.sl-window-old {
  position: absolute;
  pointer-events: none;
  z-index: 8;
  box-shadow: none;
  transition: opacity 220ms ease-out;
}

@keyframes sl-chrome-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---- Chip ---- */
.sl-chip {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 20;
  background: var(--chip-bg);
  color: var(--chip-fg);
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  font-family: -apple-system, "SF Mono", ui-monospace, monospace;
  letter-spacing: 0.02em;
  opacity: 0;
  transition: opacity 200ms, background 200ms;
  pointer-events: none;
}
.sl-chip.visible { opacity: 1; }
.sl-chip.error { background: var(--chip-error); }

.sl-try-status {
  position: absolute;
  left: 18px;
  bottom: 14px;
  z-index: 22;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--theater-bg);
  border: 1px solid var(--theater-border);
  color: var(--muted);
  font: inherit;
  font-size: 11px;
  line-height: 1;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: color 160ms, border-color 160ms, transform 160ms;
  cursor: pointer;
}
.sl-demo:not(.armed):hover .sl-try-status {
  transform: scale(1.14);
}
.sl-try-status:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.sl-demo.armed .sl-try-status {
  cursor: default;
  pointer-events: none;
}

/* ---- Hint window ---- */
.sl-hint-window {
  position: absolute;
  left: 50%;
  bottom: 84px;
  z-index: 12;
  width: min(300px, calc(100% - 32px));
  padding: 8px;
  border: 1px solid var(--theater-border);
  border-radius: 9px;
  background: var(--theater-bg);
  color: var(--fg);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px) scale(0.98);
  transition: opacity 140ms ease-out, transform 140ms ease-out;
}
.sl-hint-window.visible {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}
.sl-hint-title {
  padding: 2px 6px 7px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1;
}
.sl-hint-row {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  gap: 8px;
  padding: 5px 6px;
  border-radius: 5px;
  font-size: 11px;
}
.sl-hint-row + .sl-hint-row { margin-top: 2px; }
.sl-hint-row.active { background: var(--stage-bg); }
.sl-hint-row.coach {
  background: var(--key-eligible-bg);
  color: var(--key-eligible-fg);
  animation: sl-hint-row-pulse 1500ms ease-in-out infinite;
}
.sl-hint-row.coach .sl-hint-key {
  border-color: var(--key-eligible-border);
  color: var(--key-eligible-fg);
}
.sl-hint-key {
  justify-self: start;
  min-width: 22px;
  padding: 1px 7px;
  border: 1px solid var(--key-border);
  border-radius: 4px;
  background: var(--key-bg);
  color: var(--key-fg);
  text-align: center;
  font-size: 10px;
}
.sl-hint-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@keyframes sl-hint-row-pulse {
  0%, 100% { box-shadow: 0 0 0 1px var(--key-eligible-border) inset; }
  50% { box-shadow: 0 0 0 3px rgba(230,194,90,0.35) inset; }
}

@media (max-width: 640px) {
  .sl-stage {
    padding: 18px;
  }
  .sl-try-status { display: none; }
  .sl-hint-window { display: none; }
  .sl-keyboard { align-self: center; align-items: center; }
}