:root {
  color-scheme: dark;
  --bg: #060b16;
  --panel: #0f1728;
  --panel-border: rgba(255, 255, 255, 0.05);
  --text: #d7e1ff;
  --muted: #8695c7;
  --accent: #4f46e5;
  --accent-strong: #a855f7;
  --accent-glow: rgba(168, 85, 247, 0.3);
  --glow: rgba(79, 70, 229, 0.35);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont,
    sans-serif;
}

/* Анимации */
@keyframes pulse {

  0%,
  100% {
    opacity: 0.6;
  }

  50% {
    opacity: 1;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

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

/* Глобальные переходы */
* {
  transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(79, 70, 229, 0.25), transparent 55%),
    var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

.app-shell {
  width: 100%;
  max-width: none;
  padding: 16px clamp(8px, 2vw, 16px) 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero {
  padding: 0 clamp(4px, 2vw, 16px);
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--text);
}

.state-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 20px;
  background: rgba(15, 23, 40, 0.8);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
  position: sticky;
  top: 20px;
  align-self: flex-start;
}

.state-panel .label {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.state-panel .value {
  margin: 4px 0 0;
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
}

.state-panel .note {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.layout {
  width: min(1400px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(420px, 1fr) minmax(220px, 280px);
  gap: 16px;
  align-items: start;
  padding: 0 clamp(4px, 1vw, 16px);
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.left-sidebar {
  order: 1;
}

.right-sidebar {
  order: 3;
}

.main-content {
  order: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.panel.viz {
  width: 100%;
  max-width: none;
}

.canvas-wrapper {
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 1280px) {
  .layout {
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
  }

  .right-sidebar {
    grid-column: 1 / -1;
    flex-direction: row;
    gap: 16px;
  }
}

@media (max-width: 1024px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .left-sidebar {
    order: 1;
  }

  .main-content {
    order: 2;
  }

  .right-sidebar {
    order: 3;
  }

  .left-sidebar,
  .right-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .state-panel {
    flex: 1;
    min-width: 200px;
  }
}

@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    flex-direction: column;
  }

  .main-content {
    order: 1;
  }

  .left-sidebar {
    order: 2;
  }

  .right-sidebar {
    order: 3;
  }

  .state-panel {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .panel.viz {
    max-width: 100%;
  }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  animation: fadeIn 0.8s ease-out;
}

.panel:hover {
  border-color: rgba(168, 85, 247, 0.2);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.controls h2 {
  margin-top: 0;
  margin-bottom: 24px;
  font-size: 1.4rem;
  font-weight: 600;
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.controls form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.control-group {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 10px 14px 14px;
  background: rgba(10, 15, 30, 0.7);
  box-shadow: inset 0 0 40px rgba(79, 70, 229, 0.05);
}

.control-group summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.95rem;
}

.control-group summary::-webkit-details-marker {
  display: none;
}

.control-group summary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid rgba(255, 255, 255, 0.4);
  border-bottom: 2px solid rgba(255, 255, 255, 0.4);
  transform: rotate(45deg);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.control-group[open] summary {
  color: var(--text);
}

.control-group[open] summary::after {
  transform: rotate(-135deg);
  border-color: rgba(255, 255, 255, 0.8);
}

.control-group>*:not(summary) {
  margin-top: 12px;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

.control:last-child {
  margin-bottom: 0;
}

.control:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.control label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}


.control label {
  font-size: 0.9rem;
}

.control-input {
  display: grid;
  grid-template-columns: 1fr 80px;
  gap: 8px;
  align-items: center;
}

.control-input.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.hint {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

input[type="range"] {
  width: 100%;
}

input,
select,
button {
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 8px 10px;
  transition: all 0.2s ease;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  background: rgba(255, 255, 255, 0.08);
}

input:hover,
select:hover,
button:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

input[type="number"] {
  background: rgba(0, 0, 0, 0.3);
}

select {
  background: rgba(0, 0, 0, 0.3);
}

button {
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

button:hover::before {
  left: 100%;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(79, 70, 229, 0.45);
}

button:active {
  transform: translateY(0);
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.slit {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 12px;
  background: rgba(15, 23, 40, 0.5);
}

.action-control {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.action-control .checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.action-control button {
  flex-shrink: 0;
  min-width: 150px;
}

.canvas-wrapper {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
  background: radial-gradient(circle at center, rgba(79, 70, 229, 0.1), transparent 70%);
  animation: fadeIn 0.6s ease-out;
}

.canvas-wrapper.fullscreen-active {
  border-radius: 0;
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(3, 7, 18, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  max-width: 600px;
  margin: 0 auto;
  transition: transform 0.3s ease;
}

.canvas-wrapper.fullscreen-active canvas {
  width: min(100vw, 100vh);
  height: min(100vw, 100vh);
  max-width: none;
  max-height: none;
}

.canvas-wrapper:hover canvas {
  transform: scale(1.02);
}

/* Эффект свечения для пятна Пуассона */
.canvas-wrapper::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pulse 2s infinite;
  z-index: 1;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 11, 22, 0.8);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.overlay.hidden {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.chart-wrapper {
  margin-top: 16px;
  padding: 16px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 10, 20, 0.7);
}

.legend {
  margin-top: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.4;
}

.legend::before {
  content: "";
  flex: 1;
  height: 10px;
  margin: 0 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, #0f172a, #1d4ed8, #06b6d4, #ec4899);
}

.theory-panel {
  width: min(1200px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  background: rgba(15, 23, 40, 0.8);
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  padding: 20px 24px;
}

.theory-block h3 {
  margin: 0 0 12px 0;
  color: var(--accent-strong);
  font-size: 1rem;
  font-weight: 600;
}

.theory-block p,
.theory-block ul {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.theory-block ul {
  margin-top: 8px;
  padding-left: 18px;
}

.theory-block li {
  margin-bottom: 6px;
}

.quick-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.quick-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  font-size: 0.9rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.quick-btn:hover {
  background: rgba(79, 70, 229, 0.2);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.quick-btn svg {
  flex-shrink: 0;
}

.chart-wrapper {
  margin-top: 16px;
  padding: 16px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 10, 20, 0.7);
  backdrop-filter: blur(5px);
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .controls {
    order: 2;
  }

  .viz {
    order: 1;
  }
}