/* Shared simulation workbench for the physics lab runtime. */
:root {
  --physics-lab-stage: #07131a;
  --physics-lab-stage-raised: #0c1d26;
  --physics-lab-stage-ink: #e9fbff;
  --physics-lab-stage-muted: #8eabb7;
  --physics-lab-grid: rgba(125, 211, 232, .09);
  --physics-lab-shadow: 0 22px 54px rgba(17, 38, 49, .14);
}

[data-physics-theme="rotom"],
[data-physics-theme="weezing"] {
  --physics-lab-stage: color-mix(in srgb, var(--bg) 82%, #020609);
  --physics-lab-stage-raised: color-mix(in srgb, var(--bg2) 84%, #071018);
  --physics-lab-stage-ink: var(--ink);
  --physics-lab-stage-muted: var(--muted);
  --physics-lab-grid: color-mix(in srgb, var(--cyan) 13%, transparent);
  --physics-lab-shadow: 0 24px 64px rgba(0, 0, 0, .34);
}

.physics-lab-shell {
  --physics-lab-accent: var(--cyan);
  position: relative;
  width: 100%;
  min-width: 0;
  margin: 28px 0;
  overflow: hidden;
  isolation: isolate;
  color: var(--ink);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--panel) 96%, var(--cyan)), var(--panel) 54%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--physics-lab-shadow);
}

.physics-lab-shell::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0 0 auto;
  height: 3px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--physics-lab-accent), var(--amber) 70%, transparent);
}

.physics-lab-shell,
.physics-lab-shell * {
  box-sizing: border-box;
}

.physics-lab-header {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 19px 22px 17px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg2) 58%, transparent);
}

.physics-lab-header::after {
  content: "SIM";
  grid-row: 1 / span 2;
  justify-self: end;
  grid-column: 3;
  padding: 4px 8px;
  color: var(--physics-lab-accent);
  border: 1px solid color-mix(in srgb, var(--physics-lab-accent) 35%, var(--line));
  border-radius: 999px;
  font: 700 9px/1 "JetBrains Mono", monospace;
  letter-spacing: .14em;
}

.physics-lab-icon {
  display: grid;
  grid-row: 1 / span 2;
  width: 48px;
  height: 48px;
  place-items: center;
  color: var(--physics-lab-accent);
  background: color-mix(in srgb, var(--physics-lab-accent) 9%, var(--bg2));
  border: 1px solid color-mix(in srgb, var(--physics-lab-accent) 36%, var(--line));
  border-radius: 13px;
  font-size: 21px;
  line-height: 1;
  box-shadow: inset 0 0 18px color-mix(in srgb, var(--physics-lab-accent) 8%, transparent);
}

.physics-lab-title {
  grid-column: 2;
  min-width: 0;
  margin: 0;
  color: var(--ink);
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.02em;
}

.physics-lab-subtitle {
  grid-column: 2;
  min-width: 0;
  margin: 4px 0 0;
  color: var(--muted);
  font: 11px/1.5 "JetBrains Mono", monospace;
}

.physics-lab-prompt {
  margin: 0;
  padding: 14px 22px;
  color: var(--ink);
  background: color-mix(in srgb, var(--physics-lab-accent) 4%, var(--bg2));
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.65;
}

.physics-lab-workbench {
  display: grid;
  grid-template-columns: minmax(230px, .68fr) minmax(0, 1.72fr);
  min-width: 0;
  background: var(--bg2);
}

.physics-lab-controls {
  display: grid;
  align-content: start;
  gap: 14px;
  min-width: 0;
  padding: 20px;
  background:
    linear-gradient(90deg, transparent, color-mix(in srgb, var(--physics-lab-accent) 3%, transparent)),
    var(--panel);
  border-right: 1px solid var(--line);
}

.physics-lab-controls::before {
  content: "ПАРАМЕТРЫ";
  color: var(--muted);
  font: 700 9px/1 "JetBrains Mono", monospace;
  letter-spacing: .15em;
}

.physics-lab-stage-column {
  display: grid;
  min-width: 0;
  align-content: start;
  background: var(--physics-lab-stage);
}

.physics-lab-control {
  display: grid;
  min-width: 0;
  gap: 8px;
  padding: 12px;
  background: color-mix(in srgb, var(--bg2) 78%, transparent);
  border: 1px solid var(--line);
  border-radius: 11px;
}

.physics-lab-control-head {
  display: flex;
  min-width: 0;
  gap: 10px;
  align-items: baseline;
  justify-content: space-between;
}

.physics-lab-control[data-scale="log"] .physics-lab-control-label::after {
  content: "LOG";
  margin-left: 7px;
  padding: 2px 4px;
  color: var(--amber);
  border: 1px solid color-mix(in srgb, var(--amber) 40%, var(--line));
  border-radius: 4px;
  font-size: 7px;
  letter-spacing: .08em;
}

.physics-lab-axis-picker {
  display: grid;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.physics-lab-axis-label {
  color: var(--physics-lab-accent);
  font: 700 9px/1 "JetBrains Mono", monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.physics-lab-control-label,
.physics-lab-label {
  display: flex;
  min-width: 0;
  gap: 10px;
  align-items: baseline;
  justify-content: space-between;
  color: var(--muted);
  font: 600 11px/1.35 "JetBrains Mono", monospace;
}

.physics-lab-control-label output,
.physics-lab-label output,
.physics-lab-control-value {
  overflow-wrap: anywhere;
  color: var(--physics-lab-accent);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.physics-lab-range {
  width: 100%;
  min-height: 44px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 999px;
  outline: none;
  background: transparent;
  accent-color: var(--physics-lab-accent);
  cursor: pointer;
  touch-action: pan-y;
  -webkit-appearance: none;
  appearance: none;
}

.physics-lab-range::-webkit-slider-runnable-track {
  height: 6px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--physics-lab-accent) 55%, var(--line)), var(--line));
  border-radius: 999px;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, .18);
}

.physics-lab-range::-webkit-slider-thumb {
  width: 20px;
  height: 20px;
  margin-top: -7px;
  background: var(--physics-lab-accent);
  border: 3px solid var(--panel);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--physics-lab-accent), 0 3px 9px rgba(0, 0, 0, .24);
  -webkit-appearance: none;
  appearance: none;
}

.physics-lab-range::-moz-range-track {
  height: 6px;
  background: var(--line);
  border: 0;
  border-radius: 999px;
}

.physics-lab-range::-moz-range-progress {
  height: 6px;
  background: var(--physics-lab-accent);
  border-radius: 999px;
}

.physics-lab-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--physics-lab-accent);
  border: 3px solid var(--panel);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--physics-lab-accent), 0 3px 9px rgba(0, 0, 0, .24);
}

.physics-lab-select {
  width: 100%;
  min-height: 44px;
  margin: 0;
  padding: 9px 36px 9px 11px;
  color: var(--ink);
  background-color: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 9px;
  font: 600 12px/1.35 "Manrope", sans-serif;
  cursor: pointer;
}

.physics-lab-stage {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 390px;
  overflow: hidden;
  place-items: center;
  color: var(--physics-lab-stage-ink);
  background-color: var(--physics-lab-stage);
  background-image:
    linear-gradient(var(--physics-lab-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--physics-lab-grid) 1px, transparent 1px),
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--physics-lab-accent) 11%, transparent), transparent 58%);
  background-size: 24px 24px, 24px 24px, 100% 100%;
  box-shadow: inset 0 0 54px rgba(0, 0, 0, .3);
}

.physics-lab-stage::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 12px;
  pointer-events: none;
  border: 1px solid color-mix(in srgb, var(--physics-lab-stage-muted) 22%, transparent);
  border-radius: 10px;
  clip-path: polygon(0 0, 32px 0, 32px 1px, calc(100% - 32px) 1px, calc(100% - 32px) 0, 100% 0, 100% 100%, calc(100% - 32px) 100%, calc(100% - 32px) calc(100% - 1px), 32px calc(100% - 1px), 32px 100%, 0 100%);
}

.physics-lab-canvas,
.physics-lab-stage canvas,
.physics-lab-stage svg {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 390px;
  border: 0;
  filter: none;
  touch-action: none;
}

.physics-lab-readouts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 1px;
  min-width: 0;
  padding: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
}

.physics-lab-readout {
  min-width: 0;
  padding: 12px 15px;
  background: var(--physics-lab-stage-raised);
  color: var(--physics-lab-stage-muted);
  font: 9px/1.4 "JetBrains Mono", monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.physics-lab-readout-value {
  display: block;
  margin-top: 3px;
  overflow-wrap: anywhere;
  color: var(--physics-lab-stage-ink);
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.03em;
  text-transform: none;
  font-variant-numeric: tabular-nums;
}

.physics-lab-cue {
  flex: 1 1 320px;
  margin: 0;
  padding: 10px 12px;
  color: var(--muted);
  background: color-mix(in srgb, var(--amber) 6%, transparent);
  border-left: 3px solid var(--amber);
  font-size: 12px;
  line-height: 1.55;
}

.physics-lab-readout[data-highlight="true"] .physics-lab-readout-value,
.physics-lab-readout.is-active .physics-lab-readout-value {
  color: var(--physics-lab-accent);
  text-shadow: 0 0 18px color-mix(in srgb, var(--physics-lab-accent) 35%, transparent);
}

.physics-lab-actions {
  display: flex;
  min-width: 0;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  padding: 15px 20px;
  background: var(--panel);
  border-top: 1px solid var(--line);
}

.physics-lab-action,
.physics-lab-reset {
  display: inline-flex;
  min-width: 0;
  min-height: 44px;
  padding: 10px 16px;
  gap: 8px;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 10px;
  font: 700 12px/1.2 "Manrope", sans-serif;
  text-align: center;
  cursor: pointer;
  user-select: none;
  transition: color .16s ease, border-color .16s ease, background-color .16s ease, transform .16s ease, box-shadow .16s ease;
}

.physics-lab-action:hover {
  color: var(--physics-lab-accent);
  background: color-mix(in srgb, var(--physics-lab-accent) 7%, var(--bg2));
  border-color: var(--physics-lab-accent);
  transform: translateY(-1px);
  box-shadow: 0 5px 16px color-mix(in srgb, var(--physics-lab-accent) 14%, transparent);
}

.physics-lab-action.primary,
.physics-lab-action[data-action="start"],
.physics-lab-action[data-action="run"] {
  color: var(--accent-ink, #fff);
  background: var(--physics-lab-accent);
  border-color: var(--physics-lab-accent);
}

.physics-lab-action.primary:hover,
.physics-lab-action[data-action="start"]:hover,
.physics-lab-action[data-action="run"]:hover {
  color: var(--accent-ink, #fff);
  filter: brightness(1.07);
}

.physics-lab-reset {
  margin-left: auto;
  color: var(--muted);
  background: transparent;
  border-color: transparent;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
}

.physics-lab-reset:hover {
  color: var(--red);
  background: color-mix(in srgb, var(--red) 7%, transparent);
  border-color: color-mix(in srgb, var(--red) 44%, var(--line));
}

.physics-lab-action:disabled,
.physics-lab-reset:disabled {
  opacity: .46;
  cursor: not-allowed;
  filter: none;
  transform: none;
  box-shadow: none;
}

.physics-lab-range:focus-visible,
.physics-lab-select:focus-visible,
.physics-lab-action:focus-visible,
.physics-lab-reset:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--physics-lab-accent) 45%, transparent);
  outline-offset: 3px;
}

.physics-lab-explanation,
.physics-lab-error {
  margin: 0;
  padding: 14px 20px;
  font-size: 13px;
  line-height: 1.65;
  overflow-wrap: anywhere;
  border-top: 1px solid var(--line);
}

.physics-lab-explanation {
  color: var(--ink);
  background: color-mix(in srgb, var(--green) 5%, var(--bg2));
  border-left: 3px solid var(--green);
}

.physics-lab-explanation > summary {
  padding: 0;
  color: var(--green);
  font-weight: 800;
  cursor: pointer;
}

.physics-lab-explanation > p {
  margin: 10px 0 0;
}

.physics-lab-explanation::before {
  content: "НАБЛЮДЕНИЕ";
  display: block;
  margin-bottom: 5px;
  color: var(--green);
  font: 700 9px/1 "JetBrains Mono", monospace;
  letter-spacing: .13em;
}

.physics-lab-error {
  color: var(--red);
  background: color-mix(in srgb, var(--red) 8%, var(--bg2));
  border-left: 3px solid var(--red);
}

.physics-lab-error::before {
  content: "ОШИБКА МОДЕЛИ";
  display: block;
  margin-bottom: 5px;
  font: 700 9px/1 "JetBrains Mono", monospace;
  letter-spacing: .13em;
}

.physics-lab-shell[data-kind="mechanics"] { --physics-lab-accent: var(--cyan); }
.physics-lab-shell[data-kind="electricity"] { --physics-lab-accent: var(--amber); }
.physics-lab-shell[data-kind="waves"] { --physics-lab-accent: var(--violet); }
.physics-lab-shell[data-kind="optics"] { --physics-lab-accent: var(--amber); }
.physics-lab-shell[data-kind="thermal"] { --physics-lab-accent: var(--orange); }
.physics-lab-shell[data-kind="atomic"] { --physics-lab-accent: var(--green); }

.physics-lab-shell[data-state="running"] .physics-lab-header::after {
  content: "LIVE";
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 45%, var(--line));
  animation: physics-lab-pulse 1.6s ease-in-out infinite;
}

.physics-lab-shell[data-state="error"] {
  --physics-lab-accent: var(--red);
}

.physics-lab-shell[data-variant="wide"] .physics-lab-workbench {
  grid-template-columns: minmax(220px, .5fr) minmax(0, 2fr);
}

.physics-lab-shell[data-variant="compact"] .physics-lab-stage,
.physics-lab-shell[data-variant="compact"] .physics-lab-canvas,
.physics-lab-shell[data-variant="compact"] .physics-lab-stage canvas,
.physics-lab-shell[data-variant="compact"] .physics-lab-stage svg {
  min-height: 300px;
}

.physics-lab-shell [hidden] {
  display: none !important;
}

@keyframes physics-lab-pulse {
  50% { box-shadow: 0 0 14px color-mix(in srgb, var(--green) 30%, transparent); }
}

@media (max-width: 760px) {
  .physics-lab-shell {
    margin: 22px 0;
    border-radius: 14px;
  }

  .physics-lab-header {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 11px;
    padding: 16px;
  }

  .physics-lab-header::after {
    display: none;
  }

  .physics-lab-icon {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    font-size: 18px;
  }

  .physics-lab-prompt {
    padding: 13px 16px;
  }

  .physics-lab-workbench,
  .physics-lab-shell[data-variant="wide"] .physics-lab-workbench {
    grid-template-columns: minmax(0, 1fr);
  }

  .physics-lab-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 16px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .physics-lab-controls::before {
    grid-column: 1 / -1;
  }

  .physics-lab-stage,
  .physics-lab-canvas,
  .physics-lab-stage canvas,
  .physics-lab-stage svg {
    min-height: clamp(280px, 68vw, 380px);
  }

  .physics-lab-readouts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .physics-lab-actions {
    padding: 14px 16px;
  }

  .physics-lab-explanation,
  .physics-lab-error {
    padding: 13px 16px;
  }
}

@media (max-width: 480px) {
  .physics-lab-controls {
    grid-template-columns: minmax(0, 1fr);
  }

  .physics-lab-actions {
    align-items: stretch;
  }

  .physics-lab-action {
    flex: 1 1 calc(50% - 5px);
  }

  .physics-lab-reset {
    flex: 1 1 100%;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .physics-lab-shell *,
  .physics-lab-shell *::before,
  .physics-lab-shell *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .physics-lab-action:hover,
  .physics-lab-reset:hover {
    transform: none;
  }
}