:root {
  --bg: #0b0d12;
  --panel: #12141b;
  --panel-2: #0f1117;
  --text: #e8eef8;
  --muted: #9aa3b2;
  --accent: #6ee7ff;
  --accent-2: #ff7ad9;
  --border: #1c2230;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  overflow: hidden;
}

#stage {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  background: #1b2738;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  outline: 2px solid var(--accent);
}

.controls {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 360px;
  max-height: calc(100vh - 32px);
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.03);
  overflow: auto;
  transition: transform 200ms ease, opacity 200ms ease;
}

.controls__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}
.brand { font-weight: 700; letter-spacing: 0.2px; }

.section { margin-bottom: 14px; }
.section__title {
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  margin-bottom: 8px;
}

.field { display: grid; gap: 8px; margin-bottom: 10px; }
.field--inline { grid-template-columns: 1fr 1fr; align-items: center; }
.field span { color: var(--muted); font-size: 12px; }

.row { display: flex; gap: 10px; align-items: center; }

input[type="file"], select, input[type="range"] {
  width: 100%;
  background: #0b0f16;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
}
input[type="color"] {
  width: 100%; height: 36px; border-radius: 8px; border: 1px solid var(--border);
  background: #0b0f16; padding: 2px;
}

.btn {
  background: linear-gradient(180deg, #1b2738, #141a24);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
}
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn--ghost { background: transparent; }
.btn--ghost .chev { display: inline-block; transform: scaleX(1); transition: transform 160ms ease; }
.btn--ghost[data-tooltip] { position: relative; }
.btn--ghost[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 100%;
  right: 0;
  transform: translateY(8px);
  white-space: nowrap;
  background: #1b2738;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}
.btn--ghost[data-tooltip]:hover::after,
.btn--ghost[data-tooltip]:focus-visible::after { opacity: 1; }

.time { font-variant-numeric: tabular-nums; font-size: 12px; color: var(--muted); }

.checkbox { display: flex; gap: 8px; align-items: center; margin: 8px 0; }

.footer { display: flex; justify-content: flex-end; border-top: 1px solid var(--border); padding-top: 10px; margin-top: 6px; }

/* small screens */
@media (max-width: 860px) {
  .controls { left: 16px; right: 16px; width: auto; }
}

.controls.collapsed { transform: translateX(calc(100% + 16px)); opacity: 0; }

.reopen-tab {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1000;
  background: linear-gradient(180deg, #1b2738, #141a24);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
}
.reopen-tab[data-tooltip] {
  /* keep fixed positioning from .reopen-tab so it stays top-right */
  position: fixed;
}
.reopen-tab[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 100%;
  right: 0;
  transform: translateY(8px);
  white-space: nowrap;
  background: #1b2738;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}
.reopen-tab[data-tooltip]:hover::after,
.reopen-tab[data-tooltip]:focus-visible::after {
  opacity: 1;
}

@media (max-width: 860px) {
  .reopen-tab { top: 12px; right: 12px; }
  .reopen-tab[data-tooltip]::after { top: calc(100% + 6px); right: 0; transform: none; }
}

/* visually hidden but accessible */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.noscript {
  position: fixed;
  bottom: 12px;
  left: 12px;
  background: #9a1515;
  color: white;
  padding: 8px 12px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}