.sm-math-bootstrap {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

#title-block-header {
  display: none;
}

.sm-lagrangian-app {
  --sm-bg: #0b121b;
  --sm-glass: rgba(22, 32, 44, 0.58);
  --sm-glass-strong: rgba(17, 26, 37, 0.78);
  --sm-line: rgba(194, 241, 255, 0.16);
  --sm-line-bright: rgba(194, 241, 255, 0.34);
  --sm-text: #f3fbff;
  --sm-muted: #9bb0bd;
  --sm-teal: #3fe0d0;
  --sm-cyan: #8ae9ff;
  --sm-violet: #d3a3ff;
  --sm-pink: #ff82c8;
  position: relative;
  isolation: isolate;
  min-height: calc(100vh - 70px);
  margin-top: -1.5rem;
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 4vw, 4rem) 5rem;
  overflow: hidden;
  color: var(--sm-text);
  background:
    radial-gradient(circle at 50% -15%, rgba(63, 224, 208, 0.12), transparent 40%),
    linear-gradient(155deg, rgba(11, 18, 27, 0.3), rgba(11, 18, 27, 0.86));
}

.sm-lagrangian-app *,
.sm-lagrangian-app *::before,
.sm-lagrangian-app *::after {
  box-sizing: border-box;
}

.sm-lagrangian-app .sm-app-aura {
  position: absolute;
  z-index: -2;
  width: min(50rem, 72vw);
  aspect-ratio: 1;
  border-radius: 44% 56% 63% 37% / 51% 37% 63% 49%;
  filter: blur(65px);
  opacity: 0.18;
  pointer-events: none;
  animation: sm-aura-drift 24s ease-in-out infinite alternate;
}

.sm-lagrangian-app .sm-app-aura-one {
  top: 9rem;
  left: -22rem;
  background: var(--sm-teal);
}

.sm-lagrangian-app .sm-app-aura-two {
  top: 29rem;
  right: -19rem;
  background: linear-gradient(135deg, var(--sm-violet), var(--sm-pink));
  animation-delay: -11s;
}

@keyframes sm-aura-drift {
  to {
    transform: translate3d(4rem, 2rem, 0) rotate(18deg) scale(1.08);
  }
}

.sm-lagrangian-app .sm-app-intro,
.sm-lagrangian-app .sm-formula-stage,
.sm-lagrangian-app .sm-controls,
.sm-lagrangian-app .sm-source-panel,
.sm-lagrangian-app .sm-scope-note {
  width: min(1480px, 100%);
  margin-right: auto;
  margin-left: auto;
}

.sm-lagrangian-app .sm-app-intro {
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
  text-align: center;
}

.sm-lagrangian-app .sm-eyebrow {
  margin: 0 0 0.65rem;
  color: var(--sm-teal);
  font-family: "Fira Code", monospace;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.sm-lagrangian-app .sm-app-intro h1 {
  margin: 0;
  color: var(--sm-text);
  font-size: clamp(2.35rem, 6vw, 5.6rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.sm-lagrangian-app .sm-app-intro h1 span {
  background: linear-gradient(100deg, var(--sm-teal), var(--sm-cyan) 42%, var(--sm-violet) 78%, var(--sm-pink));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.sm-lagrangian-app .sm-app-lede {
  max-width: 760px;
  margin: 1.25rem auto 0;
  color: var(--sm-muted);
  font-size: clamp(0.98rem, 1.5vw, 1.12rem);
  line-height: 1.7;
}

.sm-lagrangian-app .sm-glass {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.075), transparent 36%),
    var(--sm-glass);
  border: 1px solid var(--sm-line);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.07),
    0 28px 80px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(26px) saturate(135%);
  -webkit-backdrop-filter: blur(26px) saturate(135%);
}

.sm-lagrangian-app .sm-formula-stage {
  position: relative;
  overflow: hidden;
  border-radius: 30px;
}

.sm-lagrangian-app .sm-formula-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  border-radius: inherit;
  box-shadow: inset 0 0 70px rgba(55, 224, 208, 0.035);
  pointer-events: none;
}

.sm-lagrangian-app .sm-stage-header,
.sm-lagrangian-app .sm-stage-footer {
  position: relative;
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem clamp(1rem, 2.5vw, 2rem);
  color: var(--sm-muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.sm-lagrangian-app .sm-stage-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.055);
}

.sm-lagrangian-app .sm-stage-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.055);
}

.sm-lagrangian-app .sm-stage-stat {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.sm-lagrangian-app .sm-stage-stat strong,
.sm-lagrangian-app .sm-stage-footer > span:first-child {
  color: var(--sm-text);
  font-family: "Fira Code", monospace;
  font-weight: 500;
}

.sm-lagrangian-app .sm-ribbon-viewport {
  position: relative;
  display: flex;
  min-height: clamp(300px, 46vh, 510px);
  align-items: center;
  overflow: hidden;
  outline: none;
  cursor: grab;
  mask-image: linear-gradient(to right, transparent 0, #000 5%, #000 95%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 5%, #000 95%, transparent 100%);
}

.sm-lagrangian-app .sm-ribbon-viewport:focus-visible {
  box-shadow: inset 0 0 0 2px var(--sm-teal);
}

.sm-lagrangian-app .sm-ribbon-glint {
  position: absolute;
  top: -40%;
  left: -20%;
  width: 35%;
  height: 180%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.045), transparent);
  transform: skewX(-18deg);
  animation: sm-glint 11s ease-in-out infinite;
  pointer-events: none;
}

@keyframes sm-glint {
  50%, 100% { left: 115%; }
}

.sm-lagrangian-app .sm-formula-track {
  position: relative;
  z-index: 2;
  display: flex;
  min-width: max-content;
  align-items: center;
  gap: clamp(1.2rem, 2.5vw, 2.8rem);
  padding: 4rem 6vw;
  color: var(--sm-text);
  font-size: clamp(1.04rem, 1.55vw, 1.48rem);
  opacity: 1;
  transition: opacity 180ms ease, filter 180ms ease;
  will-change: transform;
}

.sm-lagrangian-app .sm-formula-track.is-changing {
  opacity: 0.22;
  filter: blur(3px);
}

.sm-lagrangian-app .sm-formula-term {
  display: inline-flex;
  flex: none;
  align-items: center;
  color: var(--sm-text);
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.22));
}

.sm-lagrangian-app .sm-formula-term:nth-child(4n + 2) {
  color: #dffeff;
}

.sm-lagrangian-app .sm-formula-term:nth-child(7n + 3) {
  color: #f0e3ff;
}

.sm-lagrangian-app .sm-term-inner {
  display: inline-block;
  transform-origin: 50% 62%;
  will-change: transform;
}

.sm-lagrangian-app .sm-formula-term mjx-container {
  margin: 0 !important;
  color: inherit !important;
}

.sm-lagrangian-app .sm-formula-ellipsis {
  color: var(--sm-muted);
  opacity: 0.65;
}

.sm-lagrangian-app .sm-loading {
  position: absolute;
  inset: 0;
  z-index: 8;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  color: var(--sm-muted);
  background: rgba(11, 18, 27, 0.28);
  transition: opacity 250ms ease, visibility 250ms ease;
}

.sm-lagrangian-app .sm-loading.is-hidden {
  visibility: hidden;
  opacity: 0;
}

.sm-lagrangian-app .sm-loading span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sm-teal);
  animation: sm-loading-pulse 1.2s ease-in-out infinite;
}

.sm-lagrangian-app .sm-loading span:nth-child(2) { animation-delay: 120ms; }
.sm-lagrangian-app .sm-loading span:nth-child(3) { animation-delay: 240ms; }

.sm-lagrangian-app .sm-loading b {
  margin-left: 0.4rem;
  color: var(--sm-muted);
  font-size: 0.8rem;
  font-weight: 500;
}

@keyframes sm-loading-pulse {
  50% { transform: translateY(-7px); opacity: 0.45; }
}

.sm-lagrangian-app .sm-controls {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1rem;
  overflow: hidden;
  border-radius: 24px;
}

.sm-lagrangian-app .sm-control-block {
  min-width: 0;
  padding: 1.25rem clamp(1rem, 2vw, 1.5rem);
  background: rgba(8, 14, 21, 0.18);
  border: 0;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.045);
}

.sm-lagrangian-app .sm-phase-control { grid-column: span 4; }
.sm-lagrangian-app .sm-sector-control { grid-column: span 8; }
.sm-lagrangian-app .sm-development-control { grid-column: span 7; }
.sm-lagrangian-app .sm-position-control { grid-column: span 5; }
.sm-lagrangian-app .sm-wave-control { grid-column: span 4; }
.sm-lagrangian-app .sm-actions { grid-column: span 8; }

.sm-lagrangian-app .sm-control-title {
  display: block;
  margin: 0 0 0.65rem;
  color: var(--sm-muted);
  font-family: "Fira Code", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.sm-lagrangian-app .sm-control-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.sm-lagrangian-app .sm-control-heading output {
  color: var(--sm-text);
  font-family: "Fira Code", monospace;
  font-size: 0.76rem;
}

.sm-lagrangian-app .sm-segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
}

.sm-lagrangian-app .sm-segmented button,
.sm-lagrangian-app .sm-action-button {
  color: var(--sm-text);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--sm-line);
  border-radius: 12px;
  font: inherit;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.sm-lagrangian-app .sm-segmented button {
  padding: 0.66rem 0.8rem;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.15;
}

.sm-lagrangian-app .sm-segmented button small {
  display: block;
  margin-top: 0.25rem;
  color: var(--sm-muted);
  font-size: 0.65rem;
  font-weight: 400;
}

.sm-lagrangian-app .sm-segmented button[aria-pressed="true"] {
  color: #061716;
  background: linear-gradient(135deg, var(--sm-teal), var(--sm-cyan));
  border-color: transparent;
  box-shadow: 0 8px 25px rgba(63, 224, 208, 0.16);
}

.sm-lagrangian-app .sm-segmented button[aria-pressed="true"] small {
  color: rgba(6, 23, 22, 0.7);
}

.sm-lagrangian-app .sm-sector-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.sm-lagrangian-app .sm-sector-chip {
  position: relative;
  display: inline-flex;
  margin: 0;
  cursor: pointer;
}

.sm-lagrangian-app .sm-sector-chip input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.sm-lagrangian-app .sm-sector-chip span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.52rem 0.82rem;
  color: var(--sm-muted);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--sm-line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  transition: all 170ms ease;
}

.sm-lagrangian-app .sm-sector-chip input:checked + span {
  color: var(--sm-text);
  background: rgba(63, 224, 208, 0.1);
  border-color: rgba(63, 224, 208, 0.52);
  box-shadow: inset 0 0 16px rgba(63, 224, 208, 0.05);
}

.sm-lagrangian-app .sm-sector-chip input:focus-visible + span,
.sm-lagrangian-app button:focus-visible,
.sm-lagrangian-app summary:focus-visible {
  outline: 2px solid var(--sm-cyan);
  outline-offset: 3px;
}

.sm-lagrangian-app input[type="range"] {
  width: 100%;
  height: 18px;
  margin: 0;
  accent-color: var(--sm-teal);
  cursor: pointer;
}

.sm-lagrangian-app .sm-range-ticks {
  display: flex;
  justify-content: space-between;
  gap: 0.4rem;
  margin-top: 0.3rem;
  color: #708592;
  font-size: 0.58rem;
}

.sm-lagrangian-app .sm-development-control p {
  min-height: 1.35em;
  margin: 0.6rem 0 0;
  color: var(--sm-muted);
  font-size: 0.74rem;
}

.sm-lagrangian-app .sm-actions {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 0.55rem;
}

.sm-lagrangian-app .sm-action-button {
  min-height: 42px;
  padding: 0.65rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 600;
}

.sm-lagrangian-app .sm-action-button:hover,
.sm-lagrangian-app .sm-segmented button:hover {
  border-color: var(--sm-line-bright);
  transform: translateY(-2px);
}

.sm-lagrangian-app .sm-action-primary {
  color: #081718;
  background: linear-gradient(135deg, var(--sm-teal), var(--sm-cyan));
  border-color: transparent;
}

.sm-lagrangian-app .sm-source-panel {
  margin-top: 1rem;
  overflow: hidden;
  border-radius: 18px;
}

.sm-lagrangian-app .sm-source-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  color: var(--sm-text);
  cursor: pointer;
  list-style: none;
}

.sm-lagrangian-app .sm-source-panel summary::-webkit-details-marker { display: none; }

.sm-lagrangian-app .sm-source-panel summary::after {
  content: "+";
  color: var(--sm-teal);
  font-family: "Fira Code", monospace;
  font-size: 1.2rem;
}

.sm-lagrangian-app .sm-source-panel[open] summary::after { content: "−"; }

.sm-lagrangian-app .sm-source-panel summary small {
  margin-left: auto;
  color: var(--sm-muted);
  font-size: 0.68rem;
}

.sm-lagrangian-app .sm-source-inner {
  max-height: 420px;
  padding: 0 1rem 1rem;
  overflow: auto;
}

.sm-lagrangian-app .sm-source-inner pre {
  margin: 0;
  padding: 1.1rem;
  color: #d7edf2;
  background: rgba(4, 9, 14, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  font-size: 0.71rem;
  white-space: pre;
}

.sm-lagrangian-app .sm-source-inner code {
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
}

.sm-lagrangian-app .sm-scope-note {
  margin-top: 1.35rem;
  color: var(--sm-muted);
  font-size: 0.78rem;
  text-align: center;
}

.sm-lagrangian-app .sm-scope-note strong { color: var(--sm-teal); }

@media (max-width: 980px) {
  .sm-lagrangian-app .sm-phase-control,
  .sm-lagrangian-app .sm-sector-control,
  .sm-lagrangian-app .sm-development-control,
  .sm-lagrangian-app .sm-position-control,
  .sm-lagrangian-app .sm-wave-control,
  .sm-lagrangian-app .sm-actions {
    grid-column: span 12;
  }

  .sm-lagrangian-app .sm-actions {
    justify-content: stretch;
  }

  .sm-lagrangian-app .sm-action-button { flex: 1; }
}

@media (max-width: 640px) {
  .sm-lagrangian-app {
    padding: 2.7rem 0.7rem 3rem;
  }

  .sm-lagrangian-app .sm-app-intro { padding: 0 0.5rem; }

  .sm-lagrangian-app .sm-formula-stage { border-radius: 20px; }

  .sm-lagrangian-app .sm-ribbon-viewport {
    min-height: 330px;
    mask-image: linear-gradient(to right, transparent 0, #000 2.5%, #000 97.5%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0, #000 2.5%, #000 97.5%, transparent 100%);
  }

  .sm-lagrangian-app .sm-formula-track {
    gap: 1.2rem;
    padding-right: 1.5rem;
    padding-left: 1.5rem;
    font-size: 1rem;
  }

  .sm-lagrangian-app .sm-stage-label,
  .sm-lagrangian-app .sm-stage-hint,
  .sm-lagrangian-app .sm-range-ticks,
  .sm-lagrangian-app .sm-source-panel summary small {
    display: none;
  }

  .sm-lagrangian-app .sm-stage-header,
  .sm-lagrangian-app .sm-stage-footer {
    padding: 0.85rem 1rem;
  }

  .sm-lagrangian-app .sm-controls { border-radius: 18px; }
  .sm-lagrangian-app .sm-control-block { padding: 1rem; }
  .sm-lagrangian-app .sm-actions { flex-wrap: wrap; }
  .sm-lagrangian-app .sm-action-button { min-width: 42%; }
}

@media (prefers-reduced-motion: reduce) {
  .sm-lagrangian-app .sm-app-aura,
  .sm-lagrangian-app .sm-ribbon-glint,
  .sm-lagrangian-app .sm-loading span {
    animation: none;
  }

  .sm-lagrangian-app .sm-formula-track,
  .sm-lagrangian-app .sm-term-inner,
  .sm-lagrangian-app .sm-action-button,
  .sm-lagrangian-app .sm-segmented button,
  .sm-lagrangian-app .sm-sector-chip span {
    transition: none;
    transform: none !important;
  }
}