.simulator-shell {
  --sim-green: #58ff9a;
  --sim-cyan: #60d9ff;
  --sim-amber: #ffc857;
  width: 100%;
  min-height: calc(100vh - 105px);
  margin-left: 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(88, 255, 154, 0.36);
  border-bottom: 1px solid rgba(88, 255, 154, 0.24);
  background: #010809;
  color: #e8f7f2;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.matrix-field {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.33;
}

.simulator-scanline {
  position: absolute;
  z-index: 1;
  left: 0;
  right: 0;
  top: -12px;
  height: 2px;
  background: rgba(96, 217, 255, 0.35);
  box-shadow: 0 0 16px rgba(96, 217, 255, 0.68);
  animation: scanner 8s linear infinite;
  pointer-events: none;
}

@keyframes scanner { to { transform: translateY(calc(100vh - 90px)); } }

.simulator-toolbar,
.simulator-grid {
  position: relative;
  z-index: 2;
}

.simulator-toolbar {
  min-height: 64px;
  display: grid;
  grid-template-columns: minmax(190px, auto) minmax(260px, 520px) minmax(210px, auto);
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px max(24px, calc((100vw - 1480px) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(1, 8, 9, 0.9);
}

.simulator-brand { display: flex; align-items: center; gap: 10px; }
.simulator-brand span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--sim-green);
  color: var(--sim-green);
  font-size: 0.68rem;
}
.simulator-brand strong { font-size: 0.82rem; }

.simulator-select { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 9px; }
.simulator-select span, .audio-controls label span { color: #7c9790; font-size: 0.65rem; }
.simulator-select select {
  min-width: 0;
  width: 100%;
  padding: 9px 34px 9px 10px;
  border: 1px solid rgba(88, 255, 154, 0.3);
  border-radius: 2px;
  background: #071214;
  color: #e6f4ef;
  font: inherit;
  font-size: 0.74rem;
}

.audio-controls { display: flex; justify-content: flex-end; align-items: center; gap: 10px; }
.sim-icon-button,
.sim-primary,
.sim-secondary,
.decision-option {
  border-radius: 2px;
  font: 800 0.72rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
  cursor: pointer;
}
.sim-icon-button { min-width: 92px; padding: 9px 10px; border: 1px solid rgba(255, 255, 255, 0.15); background: #0b1719; color: var(--sim-cyan); }
.audio-controls label { display: grid; grid-template-columns: auto 86px; align-items: center; gap: 7px; }
.audio-controls input { width: 86px; accent-color: var(--sim-green); }

.simulator-grid {
  width: min(1540px, 100%);
  min-height: calc(100vh - 169px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(430px, 1.65fr) minmax(300px, 0.85fr);
  background: rgba(1, 8, 9, 0.73);
}

.mission-brief,
.mission-console,
.leaderboard-panel { min-width: 0; padding: 30px; }
.mission-brief { border-right: 1px solid rgba(255, 255, 255, 0.12); }
.leaderboard-panel { border-left: 1px solid rgba(255, 255, 255, 0.12); }
.system-label { color: var(--sim-green); font-size: 0.66rem; font-weight: 850; }
.mission-code { margin-top: 38px; color: rgba(96, 217, 255, 0.55); font-size: 4.4rem; font-weight: 900; line-height: 1; }
.mission-brief h1 { font-size: 1.65rem; margin: 10px 0 20px; }
.mission-brief p { color: #abc2bb; font-size: 0.83rem; }
.mission-data { display: grid; gap: 0; margin: 28px 0; }
.mission-data > div { padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, 0.1); }
.mission-data dt { color: #708b85; font-size: 0.61rem; text-transform: uppercase; }
.mission-data dd { margin: 5px 0 0; color: #dbeae5; font-size: 0.76rem; line-height: 1.45; }
.mission-progress { height: 4px; overflow: hidden; background: rgba(255, 255, 255, 0.1); }
.mission-progress span { display: block; height: 100%; background: var(--sim-green); transition: width 300ms ease; }
.text-command { display: inline-block; margin-top: 16px; color: var(--sim-cyan); font-size: 0.72rem; text-decoration: underline; text-underline-offset: 4px; }

.mission-console { display: grid; grid-template-rows: auto 1fr; align-items: stretch; }
.console-status {
  min-height: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #8aa29b;
  font-size: 0.66rem;
}
.console-status strong { margin-left: auto; color: var(--sim-amber); }
.status-light { width: 7px; height: 7px; background: var(--sim-green); box-shadow: 0 0 12px rgba(88, 255, 154, 0.85); animation: status-blink 1.5s ease-in-out infinite; }
.status-light.complete { background: var(--sim-cyan); }
@keyframes status-blink { 50% { opacity: 0.3; } }

.lobby-content,
.leaderboard-intro,
.mission-result {
  min-height: 540px;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 18px;
  max-width: 680px;
  margin: 0 auto;
  padding: 38px 0;
}
.lobby-content h2, .leaderboard-intro h2 { font-size: 2.55rem; line-height: 1.07; margin: 0; }
.lobby-content > p, .leaderboard-intro > p { color: #b6c9c3; font-family: Inter, ui-sans-serif, system-ui, sans-serif; max-width: 650px; }
.callsign-field { width: 100%; display: grid; gap: 8px; color: #8ba39c; font-size: 0.68rem; }
.callsign-field input {
  width: 100%;
  padding: 15px;
  border: 1px solid rgba(96, 217, 255, 0.35);
  border-radius: 2px;
  outline: 0;
  background: #061113;
  color: #fff;
  font: 800 1rem ui-monospace, SFMono-Regular, Consolas, monospace;
}
.callsign-field input:focus { border-color: var(--sim-cyan); box-shadow: 0 0 0 2px rgba(96, 217, 255, 0.12); }
.sim-primary, .sim-secondary { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 12px 17px; }
.sim-primary { border: 1px solid var(--sim-green); background: var(--sim-green); color: #011008; }
.sim-secondary { border: 1px solid rgba(255, 255, 255, 0.2); background: #091416; color: #e4f1ed; }
.sim-secondary:disabled { opacity: 0.4; cursor: not-allowed; }
.console-rule { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 18px; border-top: 1px solid rgba(255, 255, 255, 0.11); }
.console-rule span { padding: 12px 8px 0 0; color: #728d85; font-size: 0.62rem; }

.scenario-stage { min-height: 580px; display: grid; grid-template-columns: 52px minmax(0, 1fr); align-content: center; gap: 20px 18px; padding: 30px 0; }
.stage-number { grid-column: 1; color: rgba(96, 217, 255, 0.5); font-size: 2rem; font-weight: 900; }
.stage-copy { grid-column: 2; }
.stage-copy h2 { max-width: 780px; margin: 9px 0 14px; font-size: 1.5rem; line-height: 1.28; }
.stage-copy p { max-width: 760px; color: #c1d2cd; }
.decision-options, .stage-actions, .decision-feedback { grid-column: 2; }
.decision-options { display: grid; gap: 9px; }
.decision-option {
  width: 100%;
  min-height: 58px;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(7, 19, 21, 0.94);
  color: #dceae6;
  text-align: left;
}
.decision-option > span { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid rgba(96, 217, 255, 0.35); color: var(--sim-cyan); }
.decision-option:hover:not(:disabled), .decision-option:focus-visible { border-color: var(--sim-cyan); outline: 0; }
.decision-option.selected.strong { border-color: var(--sim-green); background: rgba(21, 67, 46, 0.82); }
.decision-option.selected.partial { border-color: var(--sim-amber); background: rgba(69, 50, 12, 0.82); }
.decision-option.selected.weak { border-color: #ff7373; background: rgba(68, 20, 22, 0.82); }
.stage-actions { min-height: 52px; display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 14px; }
.hint-output { color: var(--sim-amber); font-size: 0.72rem; line-height: 1.45; }
.decision-feedback { min-height: 70px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, 0.11); }
.decision-feedback:empty { display: none; }
.decision-feedback p { margin: 8px 0 14px; color: #c6d8d2; }
.feedback-grade { font-size: 0.68rem; font-weight: 900; }
.feedback-grade.strong { color: var(--sim-green); }
.feedback-grade.partial { color: var(--sim-amber); }
.feedback-grade.weak { color: #ff8989; }

.ranking-head { display: flex; justify-content: space-between; align-items: start; gap: 10px; }
.ranking-head h2 { margin-top: 8px; font-size: 1.02rem; }
.network-status { flex: 0 0 auto; padding: 6px; border: 1px solid rgba(255, 200, 87, 0.35); color: var(--sim-amber); font-size: 0.55rem; }
.network-status.live { color: var(--sim-green); border-color: rgba(88, 255, 154, 0.36); }
.ranking-list { display: grid; gap: 0; padding: 0; margin: 22px 0; list-style: none; }
.ranking-list li { min-height: 54px; display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; align-items: center; gap: 10px; border-top: 1px solid rgba(255, 255, 255, 0.1); }
.rank-position { color: #607a73; font-size: 0.7rem; }
.rank-player { min-width: 0; display: grid; gap: 3px; }
.rank-player strong { overflow: hidden; text-overflow: ellipsis; font-size: 0.75rem; }
.rank-player small { color: #6d8981; font-size: 0.55rem; }
.rank-score { color: var(--sim-amber); font-size: 1rem; }
.empty-ranking { grid-template-columns: 1fr !important; color: #8ba19a; font-size: 0.73rem; line-height: 1.5; }
.ranking-note, .ranking-loading { color: #667f78; font-size: 0.62rem; }

.mission-result { justify-items: center; text-align: center; }
.result-score { display: grid; justify-items: center; margin: 8px 0; }
.result-score strong { color: var(--sim-green); font-size: 6rem; line-height: 0.9; text-shadow: 0 0 24px rgba(88, 255, 154, 0.32); }
.result-score span { margin-top: 9px; color: #829a93; font-size: 0.67rem; }
.score-breakdown { display: grid; grid-template-columns: repeat(5, minmax(80px, 1fr)); border: 1px solid rgba(255, 255, 255, 0.12); }
.score-breakdown > div { min-width: 0; display: grid; gap: 4px; padding: 12px; border-right: 1px solid rgba(255, 255, 255, 0.1); }
.score-breakdown > div:last-child { border-right: 0; }
.score-breakdown strong { color: var(--sim-cyan); }
.score-breakdown span { color: #718a83; font-size: 0.55rem; }
.result-rank { color: var(--sim-amber); font-weight: 900; }
.result-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.leaderboard-mode .simulator-grid { grid-template-columns: minmax(220px, 0.68fr) minmax(400px, 1.1fr) minmax(390px, 1fr); }

@media (prefers-reduced-motion: reduce) {
  .simulator-scanline, .status-light { animation: none; }
}

@media (max-width: 1180px) {
  .simulator-grid, .leaderboard-mode .simulator-grid { grid-template-columns: 230px minmax(0, 1fr); }
  .leaderboard-panel { grid-column: 1 / -1; border-left: 0; border-top: 1px solid rgba(255, 255, 255, 0.12); }
  .ranking-list { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 24px; }
}

@media (max-width: 820px) {
  .simulator-toolbar { grid-template-columns: 1fr auto; padding: 10px 14px; }
  .simulator-select { grid-row: 2; grid-column: 1 / -1; }
  .audio-controls label { display: none; }
  .simulator-grid, .leaderboard-mode .simulator-grid { grid-template-columns: 1fr; }
  .mission-brief { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
  .mission-brief, .mission-console, .leaderboard-panel { padding: 22px 18px; }
  .mission-code { margin-top: 20px; font-size: 3rem; }
  .mission-data { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .mission-data > div { padding-right: 8px; }
  .lobby-content, .leaderboard-intro, .mission-result { min-height: 480px; }
  .scenario-stage { grid-template-columns: 1fr; min-height: 0; }
  .stage-number, .stage-copy, .decision-options, .stage-actions, .decision-feedback { grid-column: 1; }
  .stage-number { font-size: 1.3rem; }
  .ranking-list { grid-template-columns: 1fr; }
}

@media (max-width: 580px) {
  .simulator-brand strong { display: none; }
  .sim-icon-button { min-width: 84px; }
  .lobby-content h2, .leaderboard-intro h2 { font-size: 2rem; }
  .mission-data { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mission-data > div:first-child { grid-column: 1 / -1; }
  .stage-actions { grid-template-columns: 1fr; }
  .score-breakdown { grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
  .score-breakdown > div { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
  .result-score strong { font-size: 4.5rem; }
}