:root {
  color-scheme: dark;
  --ink: #080b0d;
  --panel: #11171a;
  --panel-raised: #161e21;
  --line: #344146;
  --line-bright: #627177;
  --ivory: #f0eadb;
  --muted: #9aa6a8;
  --gold: #d7a948;
  --gold-soft: #f0c976;
  --mint: #a7c7c0;
  --green: #76c39a;
  --red: #dc827b;
  --shadow: rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--ink);
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--ink);
  color: var(--ivory);
  font-family: "Fira Sans", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

button,
body,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 3px;
}

.shell {
  width: min(1480px, calc(100% - 48px));
  margin: 0 auto;
  padding: 34px 0 24px;
}

.masthead,
.mission-strip,
.panel-heading,
.label-row,
.timeline-header,
.timeline-footer,
.footer-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.masthead-compact {
  justify-content: flex-end;
}

.masthead {
  gap: 24px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.brand-lockup h1,
.panel-heading h2,
.timeline-header h2 {
  margin: 0;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.brand-lockup h1 {
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1;
}

.panel-heading h2,
.timeline-header h2 {
  font-size: 1.12rem;
}

.eyebrow,
.connection-readout,
.event-count,
.mesh-label,
.replay-state,
.timeline-version,
.timeline-current,
.footer-note,
.axis-readout,
.viewport-note {
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.eyebrow {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
}

.connection-readout {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mint);
  font-size: 0.72rem;
  white-space: nowrap;
}

.signal-mark,
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(215, 169, 72, 0.12);
}

.mission-strip {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: 1px;
  margin: 20px 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.mission-strip > div {
  min-height: 76px;
  padding: 15px 18px;
  background: var(--panel);
}

.mission-strip strong {
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.83rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.mission-note {
  text-align: right;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(200px, 0.68fr) minmax(420px, 2.4fr);
  gap: 12px;
}

.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 16px 36px var(--shadow);
}

.telemetry-panel,
.event-panel {
  min-height: 440px;
  padding: 20px;
}

.panel-heading {
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 9px;
  border: 1px solid var(--line-bright);
  color: var(--gold-soft);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
  white-space: nowrap;
}

.status-chip .status-dot {
  width: 6px;
  height: 6px;
  box-shadow: none;
}

.status-running .status-dot,
.status-succeeded .status-dot {
  background: var(--green);
}

.status-failed .status-dot,
.status-stale .status-dot {
  background: var(--red);
}

.status-failed,
.status-stale {
  color: var(--red);
}

.status-message {
  min-height: 56px;
  margin: 22px 0 28px;
  color: var(--ivory);
  font-size: 1.25rem;
  line-height: 1.35;
}

.is-hidden {
  display: none !important;
}

.model-library {
  display: grid;
  gap: 9px;
  margin: 0 0 22px;
  padding: 14px 0 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.library-title {
  color: var(--muted);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.model-card {
  display: grid;
  gap: 5px;
  padding: 11px 13px;
  border: 1px solid var(--line-bright);
  border-radius: 0;
  background: var(--panel-raised);
  color: var(--ivory);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.model-card:hover {
  border-color: var(--gold-soft);
  background: rgba(200, 168, 92, 0.08);
}

.model-card:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 2px;
}

.model-card.is-active {
  border-color: var(--gold-soft);
  background: rgba(200, 168, 92, 0.1);
}

.model-name {
  font-size: 0.95rem;
  font-weight: 600;
}

.model-desc {
  color: var(--muted);
  font-size: 0.68rem;
}

.run-controls {
  display: grid;
  gap: 14px;
  margin: 0 0 22px;
  padding: 14px 0 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.control-grid {
  display: grid;
  gap: 9px;
}

.control-grid label,
.render-toggle {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.control-grid input {
  width: 100%;
  min-height: 31px;
  padding: 5px 7px;
  border: 1px solid var(--line-bright);
  border-radius: 0;
  background: var(--panel-raised);
  color: var(--ivory);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
}

.control-grid input:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 2px;
}

.control-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.render-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  letter-spacing: 0;
  text-transform: none;
}

.render-toggle input {
  accent-color: var(--gold);
}

.run-start-button,
.artifact-link {
  min-height: 34px;
  padding: 7px 9px;
  border: 1px solid var(--gold);
  border-radius: 0;
  background: transparent;
  color: var(--gold-soft);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.62rem;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease;
}

.run-start-button:hover,
.artifact-link:hover {
  background: var(--gold);
  color: var(--ink);
}

.artifact-link {
  justify-self: start;
}

.version-block {
  padding: 16px 0 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.label-row {
  color: var(--muted);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
}

.label-row strong {
  color: var(--gold-soft);
  font-weight: 500;
}

.progress-track {
  height: 4px;
  margin-top: 14px;
  background: #293236;
}

.progress-fill {
  display: block;
  height: 100%;
  background: var(--gold);
  transition: width 220ms ease;
}

.telemetry-list {
  margin: 0;
}

.telemetry-list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid #253035;
}

.telemetry-list dt {
  color: var(--muted);
  font-size: 0.76rem;
}

.telemetry-list dd {
  max-width: 60%;
  margin: 0;
  color: var(--ivory);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.69rem;
  text-align: right;
  word-break: break-word;
}

.viewport-panel {
  min-height: 440px;
  padding: 20px 20px 14px;
}

.viewport-heading {
  align-items: center;
}

.mesh-label {
  color: var(--gold-soft);
  font-size: 0.68rem;
  text-align: right;
}

.viewport-frame {
  position: relative;
  height: 370px;
  margin-top: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #0b1012;
}

.viewport-frame::after {
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(167, 199, 192, 0.13);
  content: "";
  pointer-events: none;
}

#viewport-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.axis-readout,
.viewport-note {
  position: absolute;
  z-index: 2;
  color: var(--muted);
  font-size: 0.6rem;
  pointer-events: none;
}

.axis-readout {
  right: 18px;
  bottom: 16px;
}

.viewport-note {
  left: 18px;
  bottom: 16px;
  color: var(--gold-soft);
}

.viewport-fallback .viewport-frame {
  display: grid;
  place-items: center;
}

.event-count {
  color: var(--green);
  font-size: 0.65rem;
}

.event-list {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.event-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  padding: 15px 0;
  border-bottom: 1px solid #253035;
}

.event-item-active {
  border-left: 2px solid var(--gold);
  padding-left: 10px;
}

.event-index {
  color: var(--gold-soft);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
}

.event-item strong,
.event-item span {
  display: block;
}

.event-item strong {
  font-size: 0.82rem;
  font-weight: 500;
}

.event-item div > span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.72rem;
}

.timeline {
  margin-top: 12px;
  padding: 20px;
}

.timeline-header {
  align-items: flex-end;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.replay-state {
  color: var(--muted);
  font-size: 0.65rem;
  text-align: right;
}

.timeline-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 30px 0 24px;
}

.timeline-line {
  position: absolute;
  top: 35px;
  right: 8%;
  left: 8%;
  height: 1px;
  background: var(--line-bright);
}

.timeline-step {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 7px;
  color: var(--muted);
  text-align: center;
}

.timeline-dot {
  z-index: 1;
  width: 11px;
  height: 11px;
  border: 2px solid var(--line-bright);
  background: var(--panel);
}

.timeline-step-complete .timeline-dot {
  border-color: var(--gold);
  background: var(--gold);
}

.timeline-step-real {
  cursor: pointer;
}

.timeline-step-real:hover .timeline-version {
  color: var(--ivory);
}

.timeline-step-active .timeline-dot {
  border-color: var(--ivory);
  box-shadow: 0 0 0 3px rgba(215, 169, 72, 0.35);
}

#follow-button[disabled] {
  border-color: var(--line-bright);
  color: var(--muted);
  cursor: default;
  opacity: 0.45;
}

#follow-button[disabled]:hover {
  background: transparent;
  color: var(--muted);
}

.timeline-version {
  color: var(--gold-soft);
  font-size: 0.68rem;
}

.timeline-label {
  font-size: 0.78rem;
}

.timeline-footer {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--ivory);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
}

.timeline-actions {
  display: flex;
  gap: 10px;
}

.replay-button {
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--gold);
  border-radius: 0;
  background: transparent;
  color: var(--gold-soft);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
  transition: background 180ms ease, color 180ms ease;
}

.replay-button:hover {
  background: var(--gold);
  color: var(--ink);
}

.footer-note {
  padding-top: 18px;
  color: #687579;
  font-size: 0.59rem;
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: minmax(190px, 0.7fr) minmax(360px, 1.3fr);
  }

  .event-panel {
    grid-column: 1 / -1;
    min-height: 0;
  }

  .event-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .event-item {
    border-bottom: 0;
    border-top: 1px solid #253035;
  }
}

@media (max-width: 700px) {
  .shell {
    width: min(100% - 28px, 560px);
    padding-top: 20px;
  }

  .masthead {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
    padding-bottom: 22px;
  }

  .connection-readout {
    font-size: 0.64rem;
  }

  .mission-strip {
    grid-template-columns: 1fr 1fr;
  }

  .mission-note {
    grid-column: 1 / -1;
    text-align: left;
  }

  .workspace {
    display: flex;
    flex-direction: column;
  }

  .telemetry-panel,
  .event-panel,
  .viewport-panel {
    min-height: 0;
  }

  .viewport-frame {
    height: 320px;
  }

  .event-list {
    grid-template-columns: 1fr;
  }

  .event-item {
    border-bottom: 1px solid #253035;
  }

  .timeline-header,
  .timeline-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .timeline-footer {
    gap: 14px;
  }

  .control-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .run-start-button {
    width: 100%;
  }

  .replay-button {
    width: 100%;
  }

  .footer-note {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

.viewport-note.is-retryable {
  cursor: pointer;
  pointer-events: auto;
}

/* ---- viewport loading overlay ---- */
.viewport-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  gap: 10px;
  align-content: center;
  background: rgba(8, 11, 13, 0.55);
  backdrop-filter: blur(2px);
  z-index: 3;
}

.viewport-loading.is-hidden {
  display: none;
}

.loading-ring {
  width: 42px;
  height: 42px;
  border: 2px solid rgba(210, 175, 95, 0.18);
  border-top-color: #d2af5f;
  border-radius: 50%;
  animation: loading-spin 0.9s linear infinite;
}

.loading-text {
  color: var(--muted);
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

@keyframes loading-spin {
  to {
    transform: rotate(360deg);
  }
}