/* ==========================================================================
   Monte Carlo Simulation & Uncertainty Scratchpad Series
   Scrollytelling & Vibrant Scientific Theme Stylesheet
   Used by: mc-01 through mc-24 and series portal
   ========================================================================== */

:root {
  /* Vibrant Scientific Palette */
  --mc-indigo: #6366f1;
  --mc-indigo-glow: rgba(99, 102, 241, 0.35);
  --mc-cyan: #06b6d4;
  --mc-cyan-glow: rgba(6, 182, 212, 0.35);
  --mc-amber: #f59e0b;
  --mc-amber-glow: rgba(245, 158, 11, 0.35);
  --mc-emerald: #10b981;
  --mc-emerald-glow: rgba(16, 185, 129, 0.35);
  --mc-rose: #f43f5e;
  --mc-rose-glow: rgba(244, 63, 94, 0.35);
  --mc-purple: #8b5cf6;
  --mc-purple-glow: rgba(139, 92, 246, 0.35);

  /* Light Theme Defaults */
  --mc-bg-card: rgba(255, 255, 255, 0.92);
  --mc-bg-card-hover: #ffffff;
  --mc-border-card: rgba(99, 102, 241, 0.22);
  --mc-text-main: #0f172a;
  --mc-text-muted: #475569;
  --mc-stage-bg: #ffffff;
  --mc-canvas-bg: #090d16;
  --mc-shadow-stage: 0 20px 40px -15px rgba(15, 23, 42, 0.12), 0 0 20px rgba(99, 102, 241, 0.1);
  --mc-widget-bg: #ffffff;
}

/* System Dark Mode Preference */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --mc-bg-card: rgba(30, 41, 59, 0.82);
    --mc-bg-card-hover: rgba(30, 41, 59, 0.96);
    --mc-border-card: rgba(99, 102, 241, 0.38);
    --mc-text-main: #f8fafc;
    --mc-text-muted: #cbd5e1;
    --mc-stage-bg: #1e293b;
    --mc-canvas-bg: #090d16;
    --mc-shadow-stage: 0 20px 45px -10px rgba(0, 0, 0, 0.6), 0 0 30px rgba(99, 102, 241, 0.25);
    --mc-widget-bg: #1e293b;
  }
}

/* Explicit Dark Mode Overrides (Gokarna theme toggle & sync) */
[data-theme="dark"],
html[data-theme="dark"],
body.dark-theme,
.dark-theme {
  --mc-bg-card: rgba(30, 41, 59, 0.85) !important;
  --mc-bg-card-hover: rgba(30, 41, 59, 0.98) !important;
  --mc-border-card: rgba(99, 102, 241, 0.4) !important;
  --mc-text-main: #f8fafc !important;
  --mc-text-muted: #cbd5e1 !important;
  --mc-stage-bg: #1e293b !important;
  --mc-canvas-bg: #090d16 !important;
  --mc-shadow-stage: 0 20px 45px -10px rgba(0, 0, 0, 0.6), 0 0 30px rgba(99, 102, 241, 0.25) !important;
  --mc-widget-bg: #1e293b !important;
}

/* --------------------------------------------------------------------------
   Hero & Title Styling
   -------------------------------------------------------------------------- */
.mc-hero {
  margin: 1.5rem 0 2.5rem 0;
  padding: 2rem;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(6, 182, 212, 0.1) 50%, rgba(244, 63, 94, 0.1) 100%);
  border: 1px solid var(--mc-border-card);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.mc-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--mc-indigo-glow) 0%, transparent 70%);
  opacity: 0.6;
  pointer-events: none;
  filter: blur(40px);
}

.mc-series-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #6366f1, #8b5cf6);
  color: #ffffff !important;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.35);
  margin-bottom: 0.75rem;
}

.mc-gradient-title {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.25;
  margin: 0.5rem 0 1rem 0;
  background: linear-gradient(135deg, #3730a3 0%, #6366f1 30%, #06b6d4 70%, #f43f5e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="dark"] .mc-gradient-title,
.dark-theme .mc-gradient-title {
  background: linear-gradient(135deg, #c7d2fe 0%, #818cf8 30%, #38bdf8 70%, #fda4af 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}

.mc-lead-hook {
  font-size: 1.12rem;
  line-height: 1.65;
  color: var(--mc-text-main);
  margin: 0;
  font-weight: 400;
}

[data-theme="dark"] .mc-lead-hook,
.dark-theme .mc-lead-hook {
  color: #e2e8f0 !important;
}

/* --------------------------------------------------------------------------
   Scrollytelling Dual-Column Layout
   -------------------------------------------------------------------------- */
.mc-scrolly-container {
  display: flex;
  gap: 2.2rem;
  align-items: flex-start;
  position: relative;
  margin: 3rem 0;
}

/* Left Narrative Track */
.mc-scrolly-narrative {
  flex: 1 1 52%;
  display: flex;
  flex-direction: column;
  gap: 2.0rem;
  padding-bottom: 3.5rem;
}

.mc-scrolly-step {
  padding: 1.6rem 1.8rem;
  border-radius: 16px;
  background: var(--mc-bg-card);
  border: 1px solid var(--mc-border-card);
  border-left: 4px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(12px);
  opacity: 0.88;
  transform: scale(0.99);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  position: relative;
  color: var(--mc-text-main);
}

.mc-scrolly-step:hover {
  opacity: 0.96;
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.mc-scrolly-step h3 {
  margin: 0;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--mc-text-main) !important;
}

.mc-scrolly-step p {
  margin: 0.65rem 0;
  line-height: 1.68;
  font-size: 0.98rem;
  color: var(--mc-text-main) !important;
}

[data-theme="dark"] .mc-scrolly-step p,
.dark-theme .mc-scrolly-step p {
  color: #cbd5e1 !important;
}

[data-theme="dark"] .mc-scrolly-step strong,
.dark-theme .mc-scrolly-step strong {
  color: #f8fafc !important;
}

.mc-scrolly-step.active {
  opacity: 1;
  transform: scale(1.015);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.07) 0%, var(--mc-bg-card-hover) 100%);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(99, 102, 241, 0.25), 0 0 24px rgba(99, 102, 241, 0.12);
}

/* Colorful step indicators */
.mc-scrolly-step[data-step="1"].active {
  border-left: 5px solid var(--mc-indigo);
}
.mc-scrolly-step[data-step="2"].active {
  border-left: 5px solid var(--mc-cyan);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.07) 0%, var(--mc-bg-card-hover) 100%);
  border-color: rgba(6, 182, 212, 0.35);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(6, 182, 212, 0.25), 0 0 24px rgba(6, 182, 212, 0.12);
}
.mc-scrolly-step[data-step="3"].active {
  border-left: 5px solid var(--mc-amber);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.07) 0%, var(--mc-bg-card-hover) 100%);
  border-color: rgba(245, 158, 11, 0.35);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(245, 158, 11, 0.25), 0 0 24px rgba(245, 158, 11, 0.12);
}
.mc-scrolly-step[data-step="4"].active {
  border-left: 5px solid var(--mc-emerald);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.07) 0%, var(--mc-bg-card-hover) 100%);
  border-color: rgba(16, 185, 129, 0.35);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(16, 185, 129, 0.25), 0 0 24px rgba(16, 185, 129, 0.12);
}
.mc-scrolly-step[data-step="5"].active {
  border-left: 5px solid var(--mc-rose);
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.07) 0%, var(--mc-bg-card-hover) 100%);
  border-color: rgba(244, 63, 94, 0.35);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(244, 63, 94, 0.25), 0 0 24px rgba(244, 63, 94, 0.12);
}

.mc-step-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.mc-step-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.14);
  color: var(--mc-indigo);
  border: 1px solid rgba(99, 102, 241, 0.3);
  letter-spacing: 0.06em;
}

.mc-scrolly-step[data-step="2"] .mc-step-badge {
  background: rgba(6, 182, 212, 0.14);
  color: var(--mc-cyan);
  border-color: rgba(6, 182, 212, 0.3);
}
.mc-scrolly-step[data-step="3"] .mc-step-badge {
  background: rgba(245, 158, 11, 0.14);
  color: var(--mc-amber);
  border-color: rgba(245, 158, 11, 0.3);
}
.mc-scrolly-step[data-step="4"] .mc-step-badge {
  background: rgba(16, 185, 129, 0.14);
  color: var(--mc-emerald);
  border-color: rgba(16, 185, 129, 0.3);
}
.mc-scrolly-step[data-step="5"] .mc-step-badge {
  background: rgba(244, 63, 94, 0.14);
  color: var(--mc-rose);
  border-color: rgba(244, 63, 94, 0.3);
}

/* High contrast badges in dark mode */
[data-theme="dark"] .mc-scrolly-step[data-step="1"] .mc-step-badge,
.dark-theme .mc-scrolly-step[data-step="1"] .mc-step-badge {
  background: rgba(99, 102, 241, 0.24) !important;
  color: #a5b4fc !important;
  border-color: rgba(99, 102, 241, 0.45) !important;
}
[data-theme="dark"] .mc-scrolly-step[data-step="2"] .mc-step-badge,
.dark-theme .mc-scrolly-step[data-step="2"] .mc-step-badge {
  background: rgba(6, 182, 212, 0.24) !important;
  color: #67e8f9 !important;
  border-color: rgba(6, 182, 212, 0.45) !important;
}
[data-theme="dark"] .mc-scrolly-step[data-step="3"] .mc-step-badge,
.dark-theme .mc-scrolly-step[data-step="3"] .mc-step-badge {
  background: rgba(245, 158, 11, 0.24) !important;
  color: #fcd34d !important;
  border-color: rgba(245, 158, 11, 0.45) !important;
}
[data-theme="dark"] .mc-scrolly-step[data-step="4"] .mc-step-badge,
.dark-theme .mc-scrolly-step[data-step="4"] .mc-step-badge {
  background: rgba(16, 185, 129, 0.24) !important;
  color: #6ee7b7 !important;
  border-color: rgba(16, 185, 129, 0.45) !important;
}
[data-theme="dark"] .mc-scrolly-step[data-step="5"] .mc-step-badge,
.dark-theme .mc-scrolly-step[data-step="5"] .mc-step-badge {
  background: rgba(244, 63, 94, 0.24) !important;
  color: #fda4af !important;
  border-color: rgba(244, 63, 94, 0.45) !important;
}

/* Right Sticky Visual Stage */
.mc-scrolly-stage,
.mc-scrolly-graphic {
  flex: 1 1 48%;
  position: sticky;
  top: 95px;
  z-index: 10;
}

.mc-scrolly-sticky,
.mc-sticky-stage {
  background: var(--mc-stage-bg);
  border: 1px solid var(--mc-border-card);
  border-radius: 18px;
  box-shadow: var(--mc-shadow-stage);
  overflow: hidden;
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
}

.mc-stage-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.25rem;
  background: rgba(99, 102, 241, 0.08);
  border-bottom: 1px solid var(--mc-border-card);
}

[data-theme="dark"] .mc-stage-header,
.dark-theme .mc-stage-header {
  background: rgba(15, 23, 42, 0.92) !important;
  border-bottom-color: rgba(255, 255, 255, 0.12) !important;
}

.mc-stage-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mc-pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--mc-emerald);
  box-shadow: 0 0 8px var(--mc-emerald-glow);
  animation: mcPulse 2s infinite;
}

@keyframes mcPulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.mc-stage-title {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-stage-title,
.dark-theme .mc-stage-title {
  color: #f8fafc !important;
}

/* HUD Real-Time Metrics */
.mc-hud-metrics {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.mc-metric-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.08);
  color: var(--mc-text-main);
  border: 1px solid rgba(128, 128, 128, 0.25);
  font-weight: 600;
}

[data-theme="dark"] .mc-metric-pill,
.dark-theme .mc-metric-pill {
  background: rgba(255, 255, 255, 0.12) !important;
  color: #f8fafc !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
}

.mc-metric-pill strong {
  color: var(--mc-indigo);
}

[data-theme="dark"] .mc-metric-pill strong,
.dark-theme .mc-metric-pill strong {
  color: #818cf8 !important;
}

/* Canvas Display */
.mc-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 330px;
  background: var(--mc-canvas-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.mc-canvas-wrapper canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Interactive Control Bar */
.mc-stage-controls {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.25rem;
  background: rgba(99, 102, 241, 0.04);
  border-top: 1px solid var(--mc-border-card);
  flex-wrap: wrap;
}

[data-theme="dark"] .mc-stage-controls,
.dark-theme .mc-stage-controls {
  background: rgba(15, 23, 42, 0.9) !important;
  border-top-color: rgba(255, 255, 255, 0.12) !important;
}

.mc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 0.95rem;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.mc-btn-play {
  background: linear-gradient(135deg, var(--mc-indigo), var(--mc-purple));
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.mc-btn-play:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.5);
}

.mc-btn-reset {
  background: rgba(128, 128, 128, 0.15);
  color: var(--mc-text-main);
  border: 1px solid rgba(128, 128, 128, 0.3);
}

[data-theme="dark"] .mc-btn-reset,
.dark-theme .mc-btn-reset {
  background: rgba(255, 255, 255, 0.12) !important;
  color: #f8fafc !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
}

.mc-btn-reset:hover {
  background: rgba(128, 128, 128, 0.25);
}

.mc-slider-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--mc-text-main);
  font-weight: 600;
}

[data-theme="dark"] .mc-slider-group,
.dark-theme .mc-slider-group {
  color: #e2e8f0 !important;
}

.mc-slider-group input[type="range"] {
  accent-color: var(--mc-indigo);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   Interactive Math & Domain Widgets (Section Embeds)
   -------------------------------------------------------------------------- */
.mc-interactive-widget {
  margin: 2.5rem 0;
  border-radius: 18px;
  background: var(--mc-widget-bg);
  border: 1px solid var(--mc-border-card);
  box-shadow: var(--mc-shadow-stage);
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.mc-widget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.4rem;
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.12), rgba(6, 182, 212, 0.08));
  border-bottom: 1px solid var(--mc-border-card);
}

[data-theme="dark"] .mc-widget-header,
.dark-theme .mc-widget-header {
  background: rgba(15, 23, 42, 0.95) !important;
  border-bottom-color: rgba(255, 255, 255, 0.12) !important;
}

.mc-widget-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1rem;
  font-weight: 800;
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-widget-title,
.dark-theme .mc-widget-title {
  color: #f8fafc !important;
}

.mc-widget-canvas-wrap {
  width: 100%;
  height: 290px;
  background: var(--mc-canvas-bg);
  position: relative;
  overflow: hidden;
}

.mc-widget-canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.mc-widget-controls {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1rem 1.4rem;
  background: rgba(99, 102, 241, 0.04);
  border-top: 1px solid var(--mc-border-card);
  flex-wrap: wrap;
}

[data-theme="dark"] .mc-widget-controls,
.dark-theme .mc-widget-controls {
  background: rgba(15, 23, 42, 0.9) !important;
  border-top-color: rgba(255, 255, 255, 0.12) !important;
}

.mc-control-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-control-item,
.dark-theme .mc-control-item {
  color: #e2e8f0 !important;
}

.mc-select {
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  color: #0f172a;
  border: 1px solid rgba(128, 128, 128, 0.35);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

[data-theme="dark"] .mc-select,
.dark-theme .mc-select {
  background: #1e293b !important;
  color: #f8fafc !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
}

.mc-btn-action {
  background: linear-gradient(135deg, var(--mc-cyan), var(--mc-indigo));
  color: #ffffff !important;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(6, 182, 212, 0.3);
  transition: all 0.2s ease;
}

.mc-btn-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(6, 182, 212, 0.45);
}

/* --------------------------------------------------------------------------
   Complementary Callout & Layout Elements (High Contrast in Dark Mode)
   -------------------------------------------------------------------------- */

/* Mathematical Highlight Panels */
.mc-math-box,
.mc-math-callout {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  border-radius: 12px;
  background: linear-gradient(to right, rgba(99, 102, 241, 0.08), rgba(6, 182, 212, 0.05));
  border-left: 5px solid var(--mc-indigo);
  border-top: 1px solid var(--mc-border-card);
  border-right: 1px solid var(--mc-border-card);
  border-bottom: 1px solid var(--mc-border-card);
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-math-box,
[data-theme="dark"] .mc-math-callout,
.dark-theme .mc-math-box,
.dark-theme .mc-math-callout {
  background: rgba(99, 102, 241, 0.14) !important;
  color: #f8fafc !important;
  border-color: rgba(99, 102, 241, 0.4) !important;
  border-left-color: #818cf8 !important;
}

.mc-math-box h4 {
  margin: 0 0 0.6rem 0;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--mc-indigo);
}

[data-theme="dark"] .mc-math-box h4,
.dark-theme .mc-math-box h4 {
  color: #818cf8 !important;
}

/* Note Callouts */
.mc-note {
  margin: 1.75rem 0;
  padding: 1.2rem 1.4rem;
  border-radius: 12px;
  background: rgba(245, 158, 11, 0.08);
  border-left: 5px solid var(--mc-amber);
  border-top: 1px solid rgba(245, 158, 11, 0.25);
  border-right: 1px solid rgba(245, 158, 11, 0.25);
  border-bottom: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-note,
.dark-theme .mc-note {
  background: rgba(245, 158, 11, 0.14) !important;
  color: #fef3c7 !important;
  border-color: rgba(245, 158, 11, 0.4) !important;
}

.mc-note p {
  margin: 0.35rem 0;
  color: inherit !important;
}

.mc-note strong {
  color: #b45309;
}

[data-theme="dark"] .mc-note strong,
.dark-theme .mc-note strong {
  color: #fbbf24 !important;
}

/* Paper Recommendations Box */
.mc-papers-box {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-radius: 14px;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-papers-box,
.dark-theme .mc-papers-box {
  background: rgba(139, 92, 246, 0.14) !important;
  color: #f8fafc !important;
  border-color: rgba(139, 92, 246, 0.45) !important;
}

.mc-papers-box strong {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--mc-purple);
  font-size: 1rem;
}

[data-theme="dark"] .mc-papers-box strong,
.dark-theme .mc-papers-box strong {
  color: #c084fc !important;
}

.mc-papers-box ul {
  margin: 0;
  padding-left: 1.3rem;
}

.mc-papers-box li {
  margin: 0.5rem 0;
  line-height: 1.5;
  color: inherit !important;
}

.mc-papers-box small {
  color: var(--mc-text-muted);
}

[data-theme="dark"] .mc-papers-box small,
.dark-theme .mc-papers-box small {
  color: #cbd5e1 !important;
}

.mc-papers-box a {
  color: var(--mc-indigo);
  text-decoration: underline;
  font-weight: 600;
}

[data-theme="dark"] .mc-papers-box a,
.dark-theme .mc-papers-box a {
  color: #818cf8 !important;
}

/* Theory & Architecture Diagram Cards */
.mc-diagram-card {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(128, 128, 128, 0.22);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

[data-theme="dark"] .mc-diagram-card,
.dark-theme .mc-diagram-card {
  background: rgba(15, 23, 42, 0.6) !important;
  border-color: rgba(255, 255, 255, 0.14) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3) !important;
}

.mc-diagram-header {
  margin-bottom: 1rem;
}

.mc-diagram-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--mc-text-main);
  margin-bottom: 0.25rem;
}

[data-theme="dark"] .mc-diagram-title,
.dark-theme .mc-diagram-title {
  color: #f8fafc !important;
}

.mc-diagram-caption {
  font-size: 0.85rem;
  color: var(--mc-text-muted);
  margin: 0;
  line-height: 1.45;
}

[data-theme="dark"] .mc-diagram-caption,
.dark-theme .mc-diagram-caption {
  color: #94a3b8 !important;
}

.mc-diagram-svg-wrap {
  width: 100%;
  overflow-x: auto;
  border-radius: 8px;
  background: var(--mc-canvas-bg);
  border: 1px solid rgba(128, 128, 128, 0.15);
  padding: 0.5rem;
}

.mc-diagram-svg-wrap svg {
  display: block;
  width: 100%;
  height: auto;
  min-width: 560px;
}

.mc-diagram-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.mc-diagram-badge {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  background: rgba(128, 128, 128, 0.1);
  border: 1px solid rgba(128, 128, 128, 0.2);
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-diagram-badge,
.dark-theme .mc-diagram-badge {
  color: #e2e8f0 !important;
  border-color: rgba(255, 255, 255, 0.18) !important;
  background: rgba(255, 255, 255, 0.08) !important;
}

/* Algorithmic Flow Card Grids */
.mc-flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.mc-flow-card {
  padding: 1.2rem;
  border-radius: 12px;
  background: var(--mc-bg-card);
  border: 1px solid var(--mc-border-card);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  transition: transform 0.2s ease;
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-flow-card,
.dark-theme .mc-flow-card {
  background: rgba(30, 41, 59, 0.85) !important;
  color: #f8fafc !important;
}

.mc-flow-card:hover {
  transform: translateY(-3px);
  border-color: var(--mc-indigo);
}

.mc-flow-card strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--mc-indigo);
  font-size: 0.92rem;
}

[data-theme="dark"] .mc-flow-card strong,
.dark-theme .mc-flow-card strong {
  color: #818cf8 !important;
}

.mc-flow-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--mc-text-muted);
}

[data-theme="dark"] .mc-flow-card p,
.dark-theme .mc-flow-card p {
  color: #cbd5e1 !important;
}

/* Method Matrix Table */
.mc-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: 12px;
  border: 1px solid var(--mc-border-card);
}

.mc-matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  text-align: left;
}

.mc-matrix th {
  background: rgba(99, 102, 241, 0.12);
  padding: 0.85rem 1rem;
  font-weight: 700;
  border-bottom: 2px solid var(--mc-border-card);
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-matrix th,
.dark-theme .mc-matrix th {
  background: rgba(99, 102, 241, 0.25) !important;
  color: #f8fafc !important;
}

.mc-matrix td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--mc-border-card);
  vertical-align: top;
  color: var(--mc-text-main);
}

[data-theme="dark"] .mc-matrix td,
.dark-theme .mc-matrix td {
  color: #e2e8f0 !important;
}

.mc-matrix tr:hover td {
  background: rgba(99, 102, 241, 0.05);
}

/* Desktop Stepper hidden by default */
.mc-mobile-stepper {
  display: none;
}

/* 3D Canvas Interaction Hint */
.mc-canvas-3d-hint {
  position: absolute;
  top: 10px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(15, 23, 42, 0.75);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.4);
  padding: 0.22rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  pointer-events: none;
  backdrop-filter: blur(6px);
  z-index: 10;
  transition: opacity 0.3s ease;
}

[data-theme="dark"] .mc-canvas-3d-hint,
.dark-theme .mc-canvas-3d-hint {
  background: rgba(15, 23, 42, 0.85) !important;
  color: #7dd3fc !important;
  border-color: rgba(125, 211, 252, 0.4) !important;
}

/* Equation & Formula Overflow Handling */

/* Equation & Formula Overflow Handling */
.katex-display,
.mc-math-callout,
.mc-math-box {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

/* --------------------------------------------------------------------------
   Tablet & Mobile Adaptations (<= 880px)
   -------------------------------------------------------------------------- */
@media (max-width: 880px) {
  .mc-hero {
    padding: 1.4rem 1.15rem;
    margin: 1rem 0 1.75rem 0;
    border-radius: 14px;
  }

  .mc-gradient-title {
    font-size: 1.65rem !important;
    line-height: 1.25;
  }

  .mc-lead-hook {
    font-size: 0.98rem;
    line-height: 1.55;
  }

  /* Scrollytelling Stack */
  .mc-scrolly-container {
    flex-direction: column;
    gap: 1.25rem;
    margin: 1.75rem 0;
  }

  .mc-scrolly-stage,
  .mc-scrolly-graphic {
    width: 100%;
    position: sticky;
    top: 60px;
    z-index: 30;
    order: -1;
    margin-bottom: 1.25rem;
  }

  .mc-scrolly-sticky,
  .mc-sticky-stage {
    border-radius: 14px;
  }

  .mc-stage-header {
    padding: 0.65rem 0.85rem;
    gap: 0.5rem;
    flex-wrap: wrap;
  }

  .mc-stage-title-wrap {
    gap: 0.4rem;
  }

  .mc-stage-title {
    font-size: 0.78rem;
  }

  /* Mobile Stepper Controls */
  .mc-mobile-stepper {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: rgba(99, 102, 241, 0.14);
    padding: 0.2rem 0.5rem;
    border-radius: 8px;
    border: 1px solid rgba(99, 102, 241, 0.3);
    margin-left: auto;
  }

  [data-theme="dark"] .mc-mobile-stepper,
  .dark-theme .mc-mobile-stepper {
    background: rgba(255, 255, 255, 0.14) !important;
    border-color: rgba(255, 255, 255, 0.25) !important;
  }

  .mc-step-nav-btn {
    background: transparent;
    border: none;
    color: var(--mc-indigo);
    font-size: 0.78rem;
    padding: 0.2rem 0.4rem;
    cursor: pointer;
    border-radius: 4px;
    line-height: 1;
    min-height: 32px;
    min-width: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
  }

  [data-theme="dark"] .mc-step-nav-btn,
  .dark-theme .mc-step-nav-btn {
    color: #a5b4fc !important;
  }

  .mc-step-counter {
    font-size: 0.76rem;
    font-weight: 800;
    font-family: ui-monospace, monospace;
    color: var(--mc-text-main);
  }

  /* Compact Canvas on Phone */
  .mc-canvas-wrapper {
    height: 195px;
  }

  .mc-stage-controls {
    padding: 0.65rem 0.85rem;
    gap: 0.65rem;
  }

  .mc-btn {
    padding: 0.45rem 0.85rem;
    font-size: 0.8rem;
    min-height: 40px;
    touch-action: manipulation;
  }

  .mc-slider-group {
    width: 100%;
    margin-left: 0;
    justify-content: space-between;
    font-size: 0.8rem;
    padding-top: 0.25rem;
  }

  .mc-slider-group input[type="range"] {
    flex: 1;
    max-width: 65%;
    height: 28px;
  }

  /* Narrative Track */
  .mc-scrolly-narrative {
    width: 100%;
    gap: 1.25rem;
    padding-bottom: 2rem;
  }

  .mc-scrolly-step {
    padding: 1.25rem 1.15rem;
    border-radius: 14px;
    opacity: 0.92;
    transform: none;
  }

  .mc-scrolly-step.active {
    opacity: 1;
    transform: none;
  }

  .mc-step-header h3 {
    font-size: 1.12rem;
  }

  /* Interactive Math Widgets on Mobile */
  .mc-interactive-widget {
    margin: 1.75rem 0;
    border-radius: 14px;
  }

  .mc-control-row,
  .mc-control-field,
  .mc-control-field > *,
  .mc-slider-wrap {
    min-width: 0;
    max-width: 100%;
  }

  .mc-matrix-readout {
    flex-wrap: wrap;
  }

  .mc-widget-header {
    padding: 0.75rem 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .mc-widget-title {
    font-size: 0.88rem;
    width: 100%;
  }

  .mc-widget-canvas-wrap {
    height: 220px;
  }

  .mc-widget-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 0.85rem;
    padding: 0.95rem 1rem;
  }

  .mc-control-item {
    width: 100%;
    justify-content: space-between;
  }

  .mc-select {
    font-size: 16px !important; /* Prevents iOS auto-zoom on focus */
    min-height: 44px;
    flex: 1;
    max-width: 65%;
  }

  .mc-btn-action {
    width: 100%;
    min-height: 44px;
    font-size: 0.92rem;
    justify-content: center;
    touch-action: manipulation;
  }

  .mc-flow-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .mc-table-wrap {
    margin: 1.5rem 0;
    -webkit-overflow-scrolling: touch;
  }

  .mc-matrix th,
  .mc-matrix td {
    padding: 0.65rem 0.75rem;
    font-size: 0.84rem;
  }
}

/* --------------------------------------------------------------------------
   Small Phone Screens (<= 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .mc-gradient-title {
    font-size: 1.4rem !important;
  }

  .mc-canvas-wrapper {
    height: 180px;
  }

  .mc-widget-canvas-wrap {
    height: 200px;
  }

  .mc-hud-metrics {
    width: 100%;
    justify-content: space-between;
  }

  .mc-metric-pill {
    font-size: 0.72rem;
    padding: 0.2rem 0.4rem;
  }

  .mc-stage-header {
    padding: 0.55rem 0.75rem;
  }

  .mc-stage-controls {
    padding: 0.55rem 0.75rem;
  }
}