/* Five visual modules, one short explanation, direct playback controls. */
.simulator-section { padding-top: 55px; }
.simulation {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 15px 50px #0b172908;
}
.sim-picker {
  display: flex;
  align-items: center;
  gap: 25px;
  padding: 24px 32px;
  border-bottom: 1px solid var(--line);
  background: var(--pale);
}
.sim-picker-label { margin: 0; font-size: 13px; font-weight: 700; white-space: nowrap; }
.scenario-selector { display: flex; flex-wrap: wrap; gap: 10px; }
.scenario-selector button {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 45px;
  padding: 10px 17px;
  border: 1px solid #cad7dd;
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  transition: background .2s, border-color .2s;
}
.scenario-selector .icon { width: 18px; height: 18px; color: var(--accessible-teal); }
.scenario-selector button:hover { border-color: var(--teal); }
.scenario-selector button[aria-pressed=true] { background: var(--navy); color: #fff; border-color: var(--navy); }
.scenario-selector button[aria-pressed=true] .icon { color: #7fd0c2; }
.simulation-body { padding: 40px 32px 28px; }
.sim-example { display: flex; align-items: baseline; gap: 14px; margin: 0 0 28px; font-size: 13px; line-height: 1.7; }
.sim-example > span { color: var(--accessible-teal); font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; }
.sim-example strong { font-weight: 400; color: var(--muted); }
.simulation-flow ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 35px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.simulation-flow li { position: relative; min-width: 0; }
.simulation-flow button {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 19px;
  width: 100%;
  min-height: 195px;
  padding: 34px 15px 23px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  color: var(--ink);
  text-align: center;
  transition: background .25s, border-color .25s, transform .25s;
}
.simulation-flow button:hover { border-color: var(--teal); transform: translateY(-3px); }
.sim-node-index { position: absolute; top: 12px; left: 14px; font-size: 10px; font-weight: 700; color: var(--muted); }
.sim-module-icon {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border-radius: 16px;
  background: #eaf4f1;
  color: var(--accessible-teal);
}
.sim-module-icon .icon { width: 31px; height: 31px; stroke-width: 1.5; }
.simulation-flow strong { max-width: 150px; font-size: 16px; font-weight: 700; line-height: 1.35; }
.sim-module-check {
  position: absolute;
  display: grid;
  place-items: center;
  top: 10px;
  right: 10px;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--accessible-teal);
  color: #fff;
  visibility: hidden;
}
.sim-module-check .icon { width: 12px; height: 12px; }
.sim-connector {
  position: absolute;
  top: 50%;
  right: -30px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 25px;
  color: #8caaa4;
  transform: translateY(-50%);
}
.sim-connector .icon { width: 21px; height: 21px; }
.simulation-flow li:last-child .sim-connector { display: none; }
.simulation-flow button.is-complete { background: #f0f8f5; border-color: #a9cfc3; }
.simulation-flow button.is-complete .sim-module-check { visibility: visible; }
.simulation-flow li:has(.is-complete) .sim-connector { color: var(--accessible-teal); }
.simulation-flow button[aria-pressed=true] { border-color: var(--navy); background: var(--navy); color: #fff; transform: translateY(-4px); }
.simulation-flow button[aria-pressed=true] .sim-node-index { color: #b0c2d1; }
.simulation-flow button[aria-pressed=true] .sim-module-icon { background: #2a9d8f25; color: #7fd0c2; }
.simulation[data-status=running] button[aria-pressed=true] .sim-module-icon { animation: module-arrives .35s ease-out; }
.simulation[data-status=running] li:has(button[aria-pressed=true]) .sim-connector .icon { animation: module-connects 1.7s ease-out; }
.sim-caption {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 96px;
  margin-top: 30px;
  padding: 20px 24px;
  border-radius: 8px;
  background: var(--pale);
}
.sim-caption-symbol { display: grid; place-items: center; flex-shrink: 0; width: 36px; height: 36px; color: var(--accessible-teal); }
.sim-caption-label { display: block; color: var(--accessible-teal); font-size: 10px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; margin-bottom: 5px; }
.sim-caption p { margin: 0; font-size: 17px; font-weight: 700; line-height: 1.6; }
.sim-caption.is-done { background: #eaf6f0; }
.sim-footer { display: flex; align-items: center; justify-content: space-between; gap: 35px; margin-top: 26px; }
.simulation-controls { display: flex; align-items: center; gap: 14px; }
.simulation-controls .button { min-width: 190px; gap: 12px; }
.simulation .sim-pause-symbol { display: none; }
.simulation[data-status=running] .sim-play-symbol { display: none; }
.simulation[data-status=running] .sim-pause-symbol { display: inline-block; }
.sim-next, .sim-reset { display: flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 12px; background: transparent; color: var(--accessible-teal); font-size: 13px; font-weight: 700; }
.sim-next { gap: 10px; white-space: nowrap; }
.sim-next .icon { width: 18px; height: 18px; }
.sim-reset { color: var(--muted); width: 44px; min-width: 44px; border-radius: 5px; }
.sim-reset .icon { width: 20px; height: 20px; }
.sim-next:hover:not(:disabled), .sim-reset:hover { background: var(--pale); }
.sim-progress { display: flex; align-items: center; gap: 13px; width: 170px; }
.sim-progress label { color: var(--muted); font-size: 12px; white-space: nowrap; }
.sim-progress progress { display: block; flex: 1; min-width: 0; width: 100%; height: 5px; border: 0; border-radius: 5px; overflow: hidden; accent-color: var(--teal); background: #e3ece9; }
.sim-progress progress::-webkit-progress-bar { background: #e3ece9; }
.sim-progress progress::-webkit-progress-value { background: var(--teal); transition: width .25s; }
.sim-progress progress::-moz-progress-bar { background: var(--teal); }
.demo-disclosure { margin: 20px auto 0; text-align: center; color: var(--muted); font-size: 12px; }
@keyframes module-arrives { from { transform: scale(.88); } to { transform: scale(1); } }
@keyframes module-connects { from { transform: translateX(-4px); opacity: .4; } to { transform: translateX(0); opacity: 1; } }
@media (max-width: 1050px) {
  .simulation-body { padding: 30px 24px 24px; }
  .simulation-flow ol { gap: 25px; }
  .sim-connector { right: -24px; width: 24px; }
  .sim-connector .icon { width: 17px; height: 17px; }
  .simulation-flow button { padding-inline: 9px; min-height: 180px; }
  .simulation-flow strong { font-size: 14px; }
  .sim-module-icon { width: 52px; height: 52px; border-radius: 13px; }
  .sim-module-icon .icon { width: 28px; height: 28px; }
  .sim-footer { gap: 20px; }
  .simulation-controls { gap: 7px; }
  .simulation-controls .button { font-size: 12px; min-width: 165px; padding-inline: 16px; }
  .sim-progress { width: 120px; }
}
@media (max-width: 720px) {
  .simulator-section { padding-top: 30px; }
  .sim-picker { flex-direction: column; align-items: stretch; gap: 12px; padding: 20px; }
  .sim-picker-label { font-size: 12px; }
  .scenario-selector { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .scenario-selector button { flex-direction: column; justify-content: center; gap: 8px; padding: 13px 5px; min-height: 78px; font-size: 11px; }
  .simulation-body { padding: 24px 20px; }
  .sim-example { flex-direction: column; gap: 4px; margin-bottom: 22px; font-size: 12px; }
  .simulation-flow ol { grid-template-columns: 1fr; gap: 22px; }
  .simulation-flow button { flex-direction: row; justify-content: flex-start; min-height: 88px; padding: 15px 35px 15px 42px; gap: 17px; text-align: left; }
  .sim-node-index { left: 13px; top: 50%; transform: translateY(-50%); }
  .sim-module-icon { width: 48px; height: 48px; border-radius: 11px; flex-shrink: 0; }
  .sim-module-icon .icon { width: 25px; height: 25px; }
  .simulation-flow strong { font-size: 15px; max-width: none; }
  .sim-module-check { right: 9px; top: 50%; transform: translateY(-50%); width: 17px; height: 17px; }
  .sim-module-check .icon { width: 11px; height: 11px; }
  .sim-connector { top: auto; bottom: -21px; left: 53px; right: auto; width: 25px; height: 20px; transform: rotate(90deg); }
  .simulation-flow button[aria-pressed=true], .simulation-flow button:hover { transform: none; }
  .sim-caption { min-height: 112px; margin-top: 24px; padding: 18px 15px; gap: 10px; }
  .sim-caption-symbol { width: 25px; height: 25px; }
  .sim-caption-symbol .icon { width: 22px; height: 22px; }
  .sim-caption p { font-size: 15px; line-height: 1.65; }
  .sim-caption-label { font-size: 9px; }
  .sim-footer { flex-direction: column; align-items: stretch; gap: 20px; margin-top: 22px; }
  .simulation-controls { flex-wrap: wrap; gap: 8px; }
  .simulation-controls .button { justify-content: center; width: 100%; min-height: 51px; font-size: 13px; }
  .sim-next { flex: 1; font-size: 12px; }
  .sim-reset { margin-left: auto; }
  .sim-progress { width: 100%; }
  .demo-disclosure { text-align: left; font-size: 11px; line-height: 1.8; }
}
@media (prefers-reduced-motion: reduce) {
  .simulation *, .simulation *::before, .simulation *::after { animation: none !important; transition: none !important; }
  .simulation-flow button:hover, .simulation-flow button[aria-pressed=true] { transform: none; }
  .sim-progress progress::-webkit-progress-value { transition: none; }
}