/* Base Reset + Page Shell */
* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
}

body {
  margin: 0;
  color: var(--text-main);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 18%, var(--bg-glow-1), transparent 34%),
    radial-gradient(circle at 90% 82%, var(--bg-glow-2), transparent 35%),
    linear-gradient(160deg, var(--bg-base), var(--bg-mid) 44%, var(--bg-tail));
  overflow: hidden;
}

/* Top Navigation + Branding */
.top-nav {
  position: relative;
  z-index: 260;
  height: var(--nav-h);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(10, 18, 36, 0.92), rgba(8, 22, 43, 0.7));
  backdrop-filter: blur(8px);
  overflow: visible;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 0.5rem;
  font-family: "Syne", "Space Grotesk", sans-serif;
  font-weight: 700;
  color: #032127;
  background: linear-gradient(135deg, var(--accent), #87fff3);
}

.brand-title {
  font-family: "Syne", "Space Grotesk", sans-serif;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
}

.brand-subtitle {
  color: var(--text-soft);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: none;
}

.mobile-nav-open {
  display: none !important;
}

.mobile-current-applet {
  display: none;
  align-items: center;
  min-height: 1.2rem;
  padding: 0;
  color: var(--title-color);
  background: transparent;
  font-family: "Syne", "Space Grotesk", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 380;
  display: grid;
  justify-items: start;
  background: rgba(4, 10, 23, 0.34);
  backdrop-filter: blur(3px);
}

.mobile-nav-drawer {
  width: min(300px, 82vw);
  height: 100%;
  border-right: 1px solid var(--line-soft);
  background: linear-gradient(90deg, rgba(10, 18, 36, 0.96), rgba(8, 22, 43, 0.9));
  padding: 0.75rem 0.75rem 0.9rem;
  box-shadow: none;
}

.mobile-nav-head {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  padding-bottom: 0.4rem;
  margin-bottom: 0.25rem;
}

.mobile-nav-head-spacer {
  flex: 1 1 auto;
}

.mobile-applet-nav {
  display: grid;
  gap: 0.1rem;
}

.mobile-applet-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.3rem;
}

.mobile-applet-tab {
  width: 100%;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--text-soft);
  font: 600 0.84rem/1.2 "Syne", "Space Grotesk", sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: left;
  padding: 0.38rem 0.1rem 0.46rem;
}

.mobile-applet-close {
  width: 1.55rem;
  height: 1.55rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(16, 31, 54, 0.76);
  color: var(--text-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  padding: 0;
}

.mobile-applet-close:hover,
.mobile-applet-close:focus-visible {
  border-color: rgba(112, 171, 255, 0.6);
  background: rgba(20, 38, 67, 0.8);
  color: var(--accent);
}

.mobile-applet-tab.is-active {
  color: var(--title-color);
  border-bottom-color: var(--accent-2);
}

.mobile-applet-tab:hover,
.mobile-applet-tab:focus-visible {
  color: var(--title-color);
  border-bottom-color: rgba(90, 164, 255, 0.55);
}

.mobile-nav-actions {
  margin-top: 0.7rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 0.15rem;
}

.mobile-nav-launcher-slot {
  margin-top: 0.52rem;
}

.mobile-nav-action-btn {
  width: 100%;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--text-soft);
  font: 600 0.8rem/1.2 "Syne", "Space Grotesk", sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: left;
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  padding: 0.38rem 0.1rem 0.46rem;
}

.mobile-nav-action-btn:hover,
.mobile-nav-action-btn:focus-visible {
  color: var(--title-color);
  border-bottom-color: rgba(90, 164, 255, 0.55);
}

/* Parameter Order + Colormap Header Controls */
.simulation-order-toggle {
  gap: 0;
}

.simulation-meta-row {
  min-height: 1.55rem;
  gap: 0.5rem;
}

.simulation-unit-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  flex-wrap: wrap;
  font-size: 0.64rem;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--text-soft);
  line-height: 1.2;
}

.simulation-unit-badge > span {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.34rem;
  border: 1px solid var(--line-soft);
  border-radius: 0.3rem;
  background: color-mix(in srgb, var(--bg-elev) 55%, transparent);
}

.simulation-unit-badge sub {
  font-size: 0.72em;
  line-height: 1;
  vertical-align: baseline;
  position: relative;
  bottom: -0.26em;
}

.simulation-unit-badge sup {
  font-size: 0.72em;
  line-height: 1;
}

.simulation-order-btn {
  width: 1.85rem;
  height: 1.42rem;
  min-height: 1.42rem;
  min-width: 1.85rem;
  padding: 0;
  border-radius: 0.18rem;
  font-size: 0.74rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.simulation-order-toggle .simulation-order-btn + .simulation-order-btn {
  margin-left: 0.08rem;
}

.simulation-order-btn i {
  line-height: 1;
}

.colormap-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.colormap-label-row .form-label {
  margin-bottom: 0;
  flex: 1 1 auto;
}

.colormap-invert-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
}

.colormap-invert-title {
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-soft);
  line-height: 1.1;
}

.colormap-invert-wrap .form-check {
  display: inline-flex;
  align-items: center;
  min-height: 0;
  padding-left: 0;
}

.colormap-invert-wrap .form-check-input {
  float: none;
  margin-left: 0;
  margin-top: 0;
}

/* Generic Chips + Top Buttons */
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-soft);
  background: var(--chip-bg);
  border-radius: 999px;
  min-height: 1.8rem;
  padding: 0 0.72rem;
  color: var(--text-soft);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.status-chip {
  gap: 0.22rem;
}

.run-chip {
  min-width: 2.3rem;
  justify-content: center;
}

.nav-icon-btn {
  width: 2.4rem;
  height: 2.4rem;
  min-width: 2.4rem;
  min-height: 2.4rem;
  padding: 0;
  border-radius: 999px;
}

.state-icon {
  font-size: 0.95rem;
  line-height: 1;
}

.chip-button {
  cursor: pointer;
  font: inherit;
  gap: 0.35rem;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

.chip-button:hover,
.chip-button:focus-visible {
  color: #eff6ff;
  border-color: rgba(135, 197, 255, 0.7);
  background: rgba(21, 36, 66, 0.68);
}

.chip-button i {
  font-size: 0.88rem;
}

.chip-button:disabled {
  opacity: 0.66;
  cursor: not-allowed;
}

.theme-button {
  min-width: 5.4rem;
}

.theme-button.nav-icon-btn {
  min-width: 2.4rem;
}

.nav-brand-group {
  min-width: 0;
}

.nav-actions {
  flex-wrap: nowrap;
  min-width: 0;
}

#support-info-open.nav-priority-hidden,
#theme-toggle.nav-priority-hidden,
#about-info-open.nav-priority-hidden {
  display: none !important;
}

#run-state {
  flex: 0 0 auto;
}


.opened-apps-menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  left: 0;
  min-width: 220px;
  border: 1px solid var(--line-soft);
  border-radius: 0.72rem;
  background: linear-gradient(170deg, rgba(9, 18, 38, 0.95), rgba(9, 20, 40, 0.92));
  padding: 0.48rem;
  z-index: 520;
}

.opened-apps-menu-list {
  display: grid;
  gap: 0.3rem;
}

.opened-apps-menu-row {
  display: flex;
  align-items: center;
  gap: 0.36rem;
}

.opened-apps-menu-open,
.opened-apps-menu-close {
  border: none;
  border-radius: 0.5rem;
  background: rgba(12, 25, 48, 0.72);
  color: var(--text-main);
}

.opened-apps-menu-open {
  flex: 1 1 auto;
  text-align: left;
  padding: 0.38rem 0.5rem;
  font: 600 0.72rem/1.15 "Syne", "Space Grotesk", sans-serif;
  letter-spacing: 0.03em;
}

.opened-apps-menu-open.is-active {
  color: var(--accent);
}

.opened-apps-menu-close {
  flex: 0 0 auto;
  width: 1.7rem;
  height: 1.7rem;
  font-size: 0.66rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-soft);
}

.opened-apps-menu-open:hover,
.opened-apps-menu-open:focus-visible,
.opened-apps-menu-close:hover,
.opened-apps-menu-close:focus-visible {
  background: rgba(19, 36, 66, 0.86);
}

/* Applet Navigation */
.applet-nav {
  position: relative;
  display: inline-grid;
  gap: 0.2rem;
  min-width: 0;
  margin-left: 0.35rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--line-soft);
}

.applet-nav-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.applet-nav-current {
  appearance: none;
  border: none;
  border-bottom: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--text-main);
  min-height: 1.8rem;
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease;
}

.applet-nav-current {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  padding: 0 0.18rem;
  max-width: min(300px, 38vw);
  font: 600 0.8rem/1.05 "Syne", "Space Grotesk", sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.applet-nav-current-label {
  display: inline-block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.applet-nav-current i {
  color: var(--text-soft);
  font-size: 0.7rem;
  line-height: 1;
}

.applet-nav-add {
  appearance: none;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--accent-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-width: 0;
  min-height: 1.8rem;
  padding: 0 0.16rem;
  font-size: 0.82rem;
  cursor: pointer;
  transition: color 180ms ease;
}

.applet-nav-current:hover,
.applet-nav-current:focus-visible {
  color: var(--title-color);
  border-bottom-color: rgba(135, 197, 255, 0.7);
}

.applet-nav-add:hover,
.applet-nav-add:focus-visible {
  color: var(--accent);
}

/* Mobile Panel Bar */
.mobile-panel-bar {
  display: none;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.75rem 0.5rem;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(90deg, rgba(10, 18, 36, 0.9), rgba(8, 22, 43, 0.76));
  backdrop-filter: blur(8px);
  z-index: 118;
}

.mobile-panel-btn {
  flex: 1 1 0;
  min-height: 2rem;
  border: 1px solid var(--line-soft);
  border-radius: 0.55rem;
  background: rgba(9, 19, 37, 0.68);
  color: var(--text-main);
  font: 600 0.74rem/1 "Space Grotesk", "Segoe UI", sans-serif;
  letter-spacing: 0.03em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.36rem;
  padding: 0 0.6rem;
}

.mobile-panel-btn i {
  color: var(--accent-2);
  font-size: 0.78rem;
}

.mobile-panel-btn.is-active {
  background: rgba(18, 40, 73, 0.78);
  border-color: rgba(112, 171, 255, 0.74);
}

/* Main Layout Grid + Panels */
.app-shell {
  --information-panel-w: 270px;
  --controls-panel-w: 320px;
  --resizer-w: 10px;
  display: grid;
  grid-template-columns: var(--information-panel-w) var(--resizer-w) minmax(0, 1fr) var(--resizer-w) var(--controls-panel-w);
  gap: 0;
  height: calc(100dvh - var(--top-offset-h));
  padding: 0;
  transition: grid-template-columns 260ms ease;
}

.app-shell.left-hidden {
  grid-template-columns: 0 0 minmax(0, 1fr) var(--resizer-w) var(--controls-panel-w);
}

.app-shell.right-hidden {
  grid-template-columns: var(--information-panel-w) var(--resizer-w) minmax(0, 1fr) 0 0;
}

.app-shell.left-hidden.right-hidden {
  grid-template-columns: 0 0 minmax(0, 1fr) 0 0;
}

/* Middle Layout: Single Right Bar (Info over Controls) */
.app-shell.is-middle-layout {
  --middle-resizer-h: 10px;
  --middle-top-h: 50%;
  --middle-bottom-h: calc(50% - var(--middle-resizer-h));
  grid-template-columns: minmax(0, 1fr) var(--resizer-w) var(--controls-panel-w);
  grid-template-rows: minmax(0, var(--middle-top-h)) var(--middle-resizer-h) minmax(0, var(--middle-bottom-h));
}

.app-shell.is-middle-layout .information-panel {
  grid-column: 3;
  grid-row: 1;
  border-right: none;
  border-left: 1px solid var(--panel-divider);
  max-height: none;
}

.app-shell.is-middle-layout .controls-panel {
  grid-column: 3;
  grid-row: 3;
  border-left: 1px solid var(--panel-divider);
  max-height: none;
}

.app-shell.is-middle-layout .viewport-panel {
  grid-column: 1;
  grid-row: 1 / span 3;
}

.app-shell.is-middle-layout .panel-resizer-left {
  display: none !important;
}

.app-shell.is-middle-layout .panel-resizer-right {
  grid-column: 2;
  grid-row: 1 / span 3;
}

.app-shell.is-middle-layout.middle-info-only {
  grid-template-rows: 1fr 0 0;
}

.app-shell.is-middle-layout.middle-info-only .information-panel {
  grid-row: 1 / span 3;
}

.app-shell.is-middle-layout.middle-info-only .controls-panel {
  display: none !important;
}

.app-shell.is-middle-layout.middle-controls-only {
  grid-template-rows: 0 0 1fr;
}

.app-shell.is-middle-layout.middle-controls-only .information-panel {
  display: none !important;
}

.app-shell.is-middle-layout.middle-controls-only .controls-panel {
  grid-row: 1 / span 3;
}

.app-shell.is-middle-layout.middle-none-visible {
  grid-template-columns: minmax(0, 1fr) 0 0;
  grid-template-rows: 1fr 0 0;
}

.middle-resizer {
  grid-column: 3;
  grid-row: 2;
  align-self: stretch;
  justify-self: stretch;
  position: relative;
  z-index: 19;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(90deg, rgba(17, 35, 64, 0.54), rgba(11, 24, 47, 0.48));
  cursor: row-resize;
  touch-action: none;
  user-select: none;
}

.middle-resizer::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 34px;
  height: 3px;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(83, 140, 229, 0.78), rgba(76, 211, 182, 0.78));
  opacity: 0.86;
}

.panel,
.viewport-panel {
  min-height: 0;
  border-radius: 0;
  border: none;
  background: var(--bg-elev);
  box-shadow: none;
  backdrop-filter: blur(8px);
  animation: rise-in 620ms ease both;
  transition: opacity 220ms ease, transform 220ms ease;
}

.viewport-panel {
  grid-column: 3;
  position: relative;
  overflow: hidden;
  animation-delay: 160ms;
}

.panel-resizer {
  position: relative;
  z-index: 18;
  width: var(--resizer-w);
  background: linear-gradient(180deg, rgba(17, 35, 64, 0.58), rgba(11, 24, 47, 0.5));
  border-left: 1px solid var(--line-soft);
  border-right: 1px solid var(--line-soft);
  cursor: col-resize;
  touch-action: none;
  user-select: none;
}

.panel-resizer::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 3px;
  height: 32px;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(83, 140, 229, 0.78), rgba(76, 211, 182, 0.78));
  opacity: 0.86;
}

.panel-resizer-left {
  grid-column: 2;
}

.panel-resizer-right {
  grid-column: 4;
}

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

/* Sidebar Headers */
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  margin-bottom: 0.72rem;
  padding-bottom: 0.55rem;
  border-bottom: none;
}

.sidebar-title {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.panel-head-icon {
  color: var(--accent-2);
  font-size: 0.86rem;
}

.icon-btn {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  border: 1px solid var(--line-soft);
  background: rgba(10, 20, 40, 0.58);
  color: #d9e8ff;
  font-size: 1rem;
}

.icon-btn:hover,
.icon-btn:focus-visible {
  border-color: rgba(125, 188, 255, 0.7);
  background: rgba(21, 38, 72, 0.68);
  color: #f5fbff;
}

.panel-title {
  margin: 0;
  font-size: 0.98rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--title-color);
}

/* Information Panel Content: Stats + Model + Charts */
.panel-copy {
  color: var(--text-soft);
  line-height: 1.45;
  margin: 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
}

.stat-card {
  border: 1px solid var(--line-soft);
  border-radius: 0.75rem;
  padding: 0.68rem 0.75rem;
  background: rgba(8, 16, 32, 0.65);
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stat-value {
  font-family: "Syne", "Space Grotesk", sans-serif;
  font-size: 1.2rem;
  line-height: 1.2;
  color: var(--text-main);
}

.stat-inline {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.7rem;
}

.stat-inline-label {
  font-size: 0.82rem;
  color: var(--text-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stat-inline-label.stat-inline-label-title {
  text-transform: none;
  letter-spacing: 0.03em;
}

.stat-inline-value {
  font-family: "Syne", "Space Grotesk", sans-serif;
  font-size: 0.95rem;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stat-inline-value.is-warning {
  color: #f4b168;
}

.tips-box {
  border-top: 1px dashed var(--line-soft);
  padding-top: 1rem;
}

.model-action-row {
  display: flex;
  justify-content: center;
}

.model-action-row .btn {
  margin-top: 0 !important;
}

.model-box {
  border: 1px solid var(--line-soft);
  border-radius: 0.72rem;
  padding: 0.62rem 0.7rem;
  background: rgba(10, 19, 37, 0.42);
}

.tips-title {
  margin: 0;
  color: var(--title-color);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tips-list {
  margin: 0.7rem 0 0;
  padding-left: 1rem;
  color: var(--text-soft);
  line-height: 1.42;
}

.math-block {
  margin-top: 0.55rem;
  padding: 0.2rem 0.15rem;
  border: none;
  border-radius: 0;
  background: transparent;
  overflow-x: hidden;
  overflow-y: hidden;
}

.math-line + .math-line {
  margin-top: 0.32rem;
}

.model-box .katex-display {
  margin: 0.22rem 0;
  overflow-x: hidden;
  overflow-y: hidden;
  max-width: 100%;
}

.model-box .katex {
  font-size: clamp(0.52rem, 0.9vw, 0.84rem);
  color: var(--text-main);
  max-width: 100%;
}

@media (max-width: 340px) {
  .model-box .katex {
    font-size: 0.5rem;
  }
}

.chart-card {
  border: 1px solid var(--line-soft);
  border-radius: 0.75rem;
  background: rgba(8, 16, 32, 0.6);
  padding: 0.55rem 0.55rem 0.6rem;
}

.chart-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.chart-toggle-btn {
  width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: none;
  background: transparent;
  color: inherit;
  border-radius: 0.5rem;
  padding: 0.2rem 0.24rem;
  text-align: left;
}

.chart-toggle-btn:hover,
.chart-toggle-btn:focus-visible {
  background: rgba(15, 30, 57, 0.5);
}

.chart-mode-btn {
  width: 1.65rem;
  min-width: 1.65rem;
  height: 1.65rem;
  border: 1px solid var(--line-soft);
  border-radius: 0.45rem;
  background: rgba(11, 23, 46, 0.55);
  color: var(--text-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.chart-mode-btn:hover,
.chart-mode-btn:focus-visible {
  background: rgba(15, 30, 57, 0.75);
}

.chart-mode-btn.is-active {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line-soft));
  background: rgba(76, 211, 182, 0.14);
}

.chart-title {
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.chart-live {
  margin-left: auto;
  font-family: "Syne", "Space Grotesk", sans-serif;
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.chart-toggle-icon {
  color: var(--text-soft);
  transition: transform 170ms ease;
}

.chart-card.collapsed {
  padding-bottom: 0.55rem;
}

.chart-card.collapsed .trend-chart {
  display: none;
}

.chart-card.collapsed .chart-toggle-icon {
  transform: rotate(180deg);
}

.trend-chart {
  width: 100%;
  height: 6rem;
  display: block;
  margin-top: 0.35rem;
  border-radius: 0.45rem;
  background:
    linear-gradient(180deg, rgba(11, 23, 46, 0.86), rgba(9, 17, 33, 0.65)),
    repeating-linear-gradient(
      to right,
      rgba(123, 170, 248, 0.08) 0,
      rgba(123, 170, 248, 0.08) 1px,
      transparent 1px,
      transparent 28px
    );
}

/* Scene Viewport + In-Viewport Tools */
#scene-host {
  width: 100%;
  height: 100%;
  position: relative;
  isolation: isolate;
}

#scene-host::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
      180deg,
      rgba(7, 12, 24, 0) 20%,
      rgba(4, 7, 18, 0.22) 100%
    ),
    radial-gradient(circle at 50% 50%, transparent 30%, rgba(6, 10, 20, 0.35) 100%);
}

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

.applet-empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 0.65rem;
  padding: 1.4rem;
  text-align: center;
  background:
    radial-gradient(circle at 32% 28%, rgba(90, 164, 255, 0.16), transparent 52%),
    radial-gradient(circle at 72% 70%, rgba(76, 211, 182, 0.14), transparent 54%),
    linear-gradient(160deg, rgba(6, 14, 29, 0.92), rgba(7, 18, 36, 0.9));
}

.applet-empty-title {
  margin: 0;
  color: var(--title-color);
  font-family: "Syne", "Space Grotesk", sans-serif;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 1.1rem;
}

.applet-empty-copy {
  margin: 0 auto;
  max-width: 40ch;
  color: var(--text-soft);
  line-height: 1.45;
}

.overlay-corner {
  position: absolute;
  left: 0.7rem;
  bottom: 0.7rem;
  font-size: 0.74rem;
  border: 1px solid var(--line-soft);
  background: rgba(7, 13, 28, 0.72);
  color: #d7e7ff;
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
  backdrop-filter: blur(6px);
}

.orientation-indicator-wrap {
  position: absolute;
  left: 0.7rem;
  bottom: 2.45rem;
  width: 5.25rem;
  height: 5.25rem;
  border: none;
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
  pointer-events: auto;
  z-index: 16;
}

.orientation-indicator-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.viewport-tools,
.viewport-tools-left {
  position: absolute;
  top: 0.68rem;
  z-index: 17;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  opacity: 0.26;
  transform: translateY(-1px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.viewport-tools {
  right: 0.72rem;
}

.viewport-tools-left {
  left: 0.72rem;
}

.viewport-panel:hover .viewport-tools,
.viewport-tools:focus-within,
.viewport-panel:hover .viewport-tools-left,
.viewport-tools-left:focus-within {
  opacity: 1;
  transform: translateY(0);
}

.viewport-tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2rem;
  width: 2rem;
  border-radius: 0.56rem;
  border: 1px solid var(--line-soft);
  background: rgba(8, 14, 30, 0.76);
  color: #d6e6ff;
  padding: 0;
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.viewport-tool-btn:hover,
.viewport-tool-btn:focus-visible {
  border-color: rgba(126, 196, 255, 0.74);
  background: rgba(22, 37, 67, 0.84);
  color: #eef6ff;
  transform: translateY(-1px);
}

.viewport-tool-btn i {
  font-size: 0.86rem;
}

/* Shared Form Inputs + Switches + Colormap Legend */
.form-range {
  margin-top: 0.15rem;
  margin-bottom: 0.75rem;
  background: transparent;
  appearance: none;
}

.section-slider-hub .section-active-slider {
  margin-top: 0;
  margin-bottom: 0;
}

.form-range::-webkit-slider-runnable-track {
  height: 0.62rem;
  border-radius: 999px;
  border: 1px solid var(--range-track-border);
  background: var(--range-track-bg);
}

.form-range::-moz-range-track {
  height: 0.62rem;
  border-radius: 999px;
  border: 1px solid var(--range-track-border);
  background: var(--range-track-bg);
}

.form-range::-webkit-slider-thumb {
  background: var(--accent);
  border: 1px solid rgba(7, 16, 34, 0.65);
  box-shadow: 0 0 0 1px rgba(10, 20, 38, 0.45);
}

.form-range::-moz-range-thumb {
  background: var(--accent);
  border: 1px solid rgba(7, 16, 34, 0.65);
}

.form-range:focus {
  outline: none;
}

.form-range:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 0.18rem var(--range-thumb-focus);
}

.form-range:focus::-moz-range-thumb {
  box-shadow: 0 0 0 0.18rem var(--range-thumb-focus);
}

.theme-select {
  border-color: var(--line);
  color: var(--text-main);
  background-color: rgba(8, 18, 38, 0.72);
}

.theme-select:focus {
  border-color: rgba(106, 177, 255, 0.9);
  box-shadow: 0 0 0 0.15rem rgba(76, 211, 182, 0.18);
}

.colormap-legend {
  border: 1px solid var(--line-soft);
  border-radius: 0.55rem;
  padding: 0.42rem 0.5rem 0.38rem;
  background: rgba(8, 18, 38, 0.42);
}

.colormap-legend-bar {
  width: 100%;
  height: 0.62rem;
  border-radius: 999px;
  border: 1px solid rgba(114, 164, 245, 0.36);
  background: linear-gradient(90deg, #30123b, #4145ab, #4685f4, #39c6c5, #77df6e, #b8de29, #f9ba38, #ee6a24, #c91f16);
}

.colormap-legend-meta {
  margin-top: 0.28rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  color: var(--text-soft);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.theme-color-input {
  width: 100%;
  min-width: 0;
  height: 2rem;
  padding: 0.16rem;
  border-radius: 0.55rem;
  border-color: var(--line);
  background-color: var(--chip-bg);
}

.theme-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.theme-color-input::-webkit-color-swatch {
  border: none;
  border-radius: 0.38rem;
}

.theme-color-input::-moz-color-swatch {
  border: none;
  border-radius: 0.38rem;
}

.form-check-label {
  font-size: 0.86rem;
  color: var(--text-soft);
}

.form-check-input {
  border-color: var(--line);
}

.form-switch .form-check-input {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%2393b0e1'/%3e%3c/svg%3e");
  background-color: rgba(17, 34, 64, 0.9);
}

.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23031522'/%3e%3c/svg%3e");
}

.form-check-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 0.14rem rgba(76, 211, 182, 0.26);
}

/* Section Containers + Action Buttons */
.section-toggle {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  border: 1px solid var(--line-soft);
  border-radius: 0.7rem;
  background: linear-gradient(180deg, rgba(7, 16, 33, 0.82), rgba(9, 19, 39, 0.7));
  color: var(--title-color);
  padding: 0.58rem 0.7rem;
  margin-bottom: 0.72rem;
  font: inherit;
  text-align: left;
}

.section-toggle:hover,
.section-toggle:focus-visible {
  border-color: rgba(112, 171, 255, 0.74);
  background: linear-gradient(180deg, rgba(12, 26, 50, 0.9), rgba(11, 24, 45, 0.82));
}

.section-toggle-title {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  font-size: 0.98rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-toggle-icon {
  color: var(--text-soft);
  transition: transform 180ms ease;
}

.control-section.collapsed .section-toggle-icon {
  transform: rotate(180deg);
}

.control-section-body {
  display: block;
}

.control-section.collapsed .control-section-body {
  display: none;
}

.control-section:not(.is-first-visible) {
  border-top: 1px dashed var(--line-soft);
  padding-top: 1.15rem;
}

.control-section.is-first-visible {
  border-top: none !important;
  padding-top: 0 !important;
  margin-top: 0 !important;
}

.controls-panel .control-section:not(.is-first-visible) {
  margin-top: 0.6rem !important;
  padding-top: 0.9rem;
}

.btn-theme,
.btn-outline-theme {
  border-radius: 999px;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: none !important;
}

.btn-theme {
  color: #031722;
  background: var(--accent);
  border: 1px solid transparent;
}

.btn-theme:hover,
.btn-theme:focus-visible {
  color: #031722;
  background: #6fe0d0;
  box-shadow: none !important;
}

.btn-outline-theme {
  color: var(--text-main);
  border: 1px solid var(--line);
  background: rgba(8, 18, 38, 0.5);
}

.btn-outline-theme:hover,
.btn-outline-theme:focus-visible {
  color: var(--text-main);
  border-color: rgba(108, 160, 255, 0.8);
  background: rgba(20, 38, 72, 0.58);
  box-shadow: none !important;
}

.simulation-action-row > .action-fill {
  flex: 1 1 0 !important;
  min-width: 0;
  min-height: 2.375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.38rem;
  padding: 0 0.9rem;
}

.simulation-action-row > .action-fill i {
  font-size: 0.92rem;
  line-height: 1;
}

.simulation-action-row > .btn-icon-only {
  flex: 0 0 auto;
  width: 2.5rem;
  height: 2.375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.simulation-action-row > .btn-icon-only i {
  font-size: 1rem;
  line-height: 1;
}

.control-note {
  color: var(--text-soft);
  font-size: 0.74rem;
  line-height: 1.35;
}

[data-control-section="ant:interaction"] .panel-copy {
  font-size: 0.72rem;
}

/* Camera Telemetry Cards */
.camera-dof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  margin-bottom: 0.72rem;
}

.camera-dof-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border: 1px solid var(--line-soft);
  border-radius: 0.62rem;
  background: rgba(8, 16, 32, 0.58);
  padding: 0.34rem 0.5rem;
}


.camera-dof-name {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  text-transform: uppercase;
  line-height: 1.15;
}

.camera-dof-value {
  margin-top: 0;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-weight: 700;
  line-height: 1.15;
  text-align: right;
}

.camera-dof-value.camera-dof-editable {
  cursor: pointer;
}

.camera-dof-value.camera-dof-editable[contenteditable="true"] {
  cursor: text;
  user-select: text;
}

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

/* Responsive Breakpoints */
@media (max-width: 1200px) {
  .app-shell {
    --information-panel-w: 240px;
    --controls-panel-w: 280px;
  }
}

@media (max-width: 980px) {
  body {
    overflow: hidden;
  }

  .top-nav {
    position: sticky;
    top: 0;
    z-index: 260;
  }

  .mobile-panel-bar {
    display: flex;
  }

  body.layout-mobile .applet-nav {
    display: none;
  }

  body.layout-mobile .mobile-nav-open {
    display: inline-flex !important;
  }

  body.layout-mobile .mobile-current-applet {
    display: inline-flex;
  }

  body:not(.layout-mobile) .mobile-nav-open,
  body:not(.layout-mobile) .mobile-current-applet {
    display: none !important;
  }

  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    height: auto;
    min-height: calc(100dvh - var(--top-offset-h));
  }

  .app-shell.is-middle-layout {
    height: calc(100dvh - var(--top-offset-h));
    min-height: 0;
  }

  .app-shell.left-hidden,
  .app-shell.right-hidden,
  .app-shell.left-hidden.right-hidden {
    grid-template-columns: 1fr;
  }

  .panel {
    backdrop-filter: none;
  }

  .information-panel,
  .controls-panel {
    grid-column: 1;
    border: none;
    border-bottom: 1px solid var(--panel-divider);
    max-height: 42vh;
  }

  .viewport-panel {
    grid-column: 1;
    min-height: 60vh;
  }

  .app-shell.is-middle-layout .viewport-panel {
    min-height: 0;
    height: 100%;
  }

  .app-shell.is-middle-layout .information-panel,
  .app-shell.is-middle-layout .controls-panel {
    max-height: none;
  }

  body.layout-mobile #show-left-panel,
  body.layout-mobile #show-controls-panel {
    display: none !important;
  }

  .viewport-tools {
    top: 0.55rem;
    right: 0.55rem;
    opacity: 1;
  }

  .panel-resizer {
    display: none;
  }

  .app-shell.is-mobile-layout .information-panel,
  .app-shell.is-mobile-layout .controls-panel {
    position: fixed;
    left: 0;
    right: 0;
    top: calc(var(--nav-h) + 3rem);
    bottom: 0;
    z-index: 125;
    max-height: none;
    height: auto;
    padding-bottom: 1.2rem;
    border-bottom: none;
  }

  .app-shell.is-mobile-layout #hide-left-panel,
  .app-shell.is-mobile-layout #hide-controls-panel {
    display: none !important;
  }

  body.layout-mobile .app-shell {
    height: calc(100dvh - var(--top-offset-h));
    min-height: 0;
    grid-template-rows: minmax(0, 1fr);
  }

  body.layout-mobile .viewport-panel {
    min-height: 0;
    height: 100%;
  }

  body.layout-mobile #scene-host {
    height: 100%;
  }
}

@media (max-width: 640px) {
  .top-nav .container-fluid {
    row-gap: 0.4rem;
  }

  .brand-subtitle {
    display: none;
  }

  .applet-nav {
    margin-left: 0.15rem;
    padding-left: 0.35rem;
  }

  .camera-dof-grid {
    grid-template-columns: 1fr;
  }

}

/* Animations */
@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}