.sim-hero,
.sim-main {
  max-width: 1200px;
}

.sim-main {
  grid-template-columns: minmax(0, 1fr);
}

.sim-stage-card {
  padding: 0;
  overflow: hidden;
}

.sim-toolbar {
  display: grid;
  grid-template-columns: minmax(220px, auto) minmax(280px, auto) 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.1rem;
}

.mode-switch,
.layer-switch,
.demo-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.mode-switch {
  margin-top: 0.35rem;
}

.layer-switch {
  margin-top: 0.35rem;
}

.mode-button[aria-pressed="true"],
.layer-button[aria-pressed="true"],
.demo-button[aria-pressed="true"] {
  border-color: var(--accent);
  background: #075985;
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.35) inset;
}

.layer-button:disabled {
  opacity: 0.5;
  cursor: wait;
}

.wireframe-button[aria-pressed="true"] {
  border-color: var(--accent2);
  background: #064e3b;
}

.engine-status {
  justify-self: center;
  margin: 0;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  text-align: center;
  font-size: 0.84rem;
}

.engine-status[data-state="success"] { color: var(--accent2); border-color: #14532d; }
.engine-status[data-state="fallback"] { color: var(--warn); border-color: #713f12; }
.engine-status[data-state="loading"] { color: var(--accent); }

.fallback-notice {
  margin: 0;
  padding: 0.75rem 1.1rem;
  border-block: 1px solid #713f12;
  background: rgba(120, 53, 15, 0.3);
  color: #fde68a;
}

.sim-viewport {
  position: relative;
  width: 100%;
  height: clamp(360px, 62vh, 680px);
  min-height: 320px;
  background: #0f172a;
  overflow: hidden;
  touch-action: none;
}

.sim-viewport canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
}

.sim-viewport canvas:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
}

.visual-status {
  position: absolute;
  z-index: 2;
  inset: 0.75rem auto auto 0.75rem;
  max-width: min(520px, calc(100% - 1.5rem));
  margin: 0;
  padding: 0.4rem 0.65rem;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.84);
  color: var(--muted);
  font-size: 0.78rem;
  pointer-events: none;
}

.layer-status {
  top: 3.25rem;
  color: #bae6fd;
}

.sim-hud {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--border);
}

.sim-hud div {
  padding: 0.85rem 1rem;
  border-right: 1px solid var(--border);
}

.sim-hud div:last-child { border-right: 0; }
.sim-hud dt { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; }
.sim-hud dd { margin: 0.2rem 0 0; font: 600 1rem ui-monospace, SFMono-Regular, Consolas, monospace; }

.replay-panel h2,
.control-panel h2,
.provenance h2 {
  margin-top: 0.15rem;
}

.replay-transport {
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  align-items: end;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.scrubber-label {
  margin: 0;
}

.scrubber-label input {
  min-height: 34px;
  padding: 0;
}

#replay-time {
  min-width: 8.5rem;
  padding-bottom: 0.6rem;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  text-align: right;
}

.replay-status { margin-bottom: 0; }

.control-hint {
  max-width: 560px;
  margin: 0;
}

.touch-controls {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.control-bank {
  display: grid;
  grid-template-columns: repeat(4, minmax(64px, 1fr));
  gap: 0.5rem;
}

.control-bank > span {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.control-bank-two {
  grid-template-columns: repeat(2, minmax(72px, 1fr));
}

.control-bank button {
  display: grid;
  place-items: center;
  gap: 0.25rem;
  min-height: 72px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0f172a;
  color: var(--text);
  cursor: pointer;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.control-bank button:hover { border-color: var(--accent); }
.control-bank button.is-active { border-color: var(--accent2); background: #064e3b; transform: translateY(1px); }
.control-bank button:disabled { opacity: 0.5; cursor: not-allowed; }
.control-bank kbd { font: 700 1.1rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.control-bank small { color: var(--muted); }

.table-scroll { overflow-x: auto; }
.provenance details { margin-top: 1rem; }
.provenance summary { color: var(--accent); cursor: pointer; }
.provenance code { overflow-wrap: anywhere; }
.safety-note { margin: 1rem 0 0; padding: 0.75rem; border-left: 3px solid var(--warn); background: rgba(120, 53, 15, 0.18); }

@media (max-width: 820px) {
  .sim-toolbar { grid-template-columns: 1fr 1fr auto; }
  .engine-status { grid-column: 1 / -1; grid-row: 2; justify-self: stretch; }
  .sim-hud { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sim-hud div:nth-child(2) { border-right: 0; }
  .sim-hud div:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .touch-controls { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .sim-viewport { height: 52vh; min-height: 320px; }
  .sim-toolbar { grid-template-columns: 1fr; gap: 0.65rem; }
  .engine-status { grid-column: 1; grid-row: auto; }
  .replay-transport { grid-template-columns: 1fr; align-items: stretch; }
  #replay-time { text-align: left; padding: 0; }
  .control-bank { grid-template-columns: repeat(2, minmax(72px, 1fr)); }
  .control-bank-two { grid-template-columns: repeat(2, minmax(72px, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .mode-button,
  .demo-button,
  .control-bank button { transition: none; }
}