/* EVCcost page integration — match the site's standard tool-page frame. */
.page-wrap.page-wrap-adas-lab {
  width: min(100%, 1480px);
  max-width: 1480px;
  margin: 0 auto;
  padding: 16px 12px 40px;
  overflow: hidden;
  border-radius: 18px;
}

.adas-wrap {
  width: 100%;
  max-width: 76rem;
  margin: 0 auto;
  padding-left: .65rem;
  padding-right: .65rem;
}

.adas-error { padding-top: 3rem; padding-bottom: 4rem; }

.page-shell {
  --color-bg: #08090b;
  --color-surface: #111318;
  --color-surface-2: #181b22;
  --color-fg: #eceae4;
  --color-muted: #8d9199;
  --color-subtle: #6a6e76;
  --color-accent: #8bb8c4;
  --color-accent-fg: #081014;
  --color-warn: #c4a574;
  --color-ok: #8fafa0;
  --color-danger: #c4847a;
  --color-border: color-mix(in oklab, var(--color-fg) 12%, transparent);
  --color-sim: #07080a;
  --color-sim-road: #1b1f27;
  --color-sim-lane: #1c2028;
  --color-sim-ppi: #0b0d11;
  --color-car: #d7dde4;
  --color-wheel: #0b0c10;
  --color-sim-car: #161920;
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius-md: 12px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --shadow-border: 0 0 0 1px color-mix(in oklab, var(--color-fg) 8%, transparent);
  --shadow-border-hover: 0 0 0 1px color-mix(in oklab, var(--color-fg) 14%, transparent);
}

.page-shell * { box-sizing: border-box; }

.page-shell .tool-heading {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 1.1rem;
  margin-top: .35rem;
  padding: 1.25rem 1.2rem 1.35rem;
  border: 1px solid color-mix(in oklab, var(--color-accent) 18%, transparent);
  border-radius: 20px;
  overflow: hidden;
  background:
    radial-gradient(420px 180px at 8% 50%, color-mix(in oklab, var(--color-accent) 18%, transparent), transparent 72%),
    linear-gradient(110deg, color-mix(in oklab, var(--color-accent) 7%, var(--color-surface)), var(--color-surface));
  box-shadow: 0 10px 32px color-mix(in oklab, var(--color-accent) 7%, transparent), var(--shadow-border);
}
.page-shell .tool-heading::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -90px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  border: 1px solid color-mix(in oklab, var(--color-accent) 20%, transparent);
  background: color-mix(in oklab, var(--color-accent) 8%, transparent);
  pointer-events: none;
}
.page-shell .tool-heading-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  position: relative;
  z-index: 1;
  border: 1px solid color-mix(in oklab, var(--color-accent) 48%, transparent);
  border-radius: 15px;
  color: var(--color-accent-fg);
  background: linear-gradient(145deg, var(--color-accent), color-mix(in oklab, var(--color-accent) 72%, #10232a));
  box-shadow: inset 0 0 0 1px color-mix(in oklab, white 12%, transparent), 0 8px 20px color-mix(in oklab, var(--color-accent) 18%, transparent);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
}
.page-shell .tool-heading-copy { position: relative; z-index: 1; }
.page-shell .tool-heading-copy .kicker { margin: 0 0 .25rem; color: var(--color-accent); }
.page-shell .tool-heading-copy h1 {
  margin: 0;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  max-width: 34ch;
}
.page-shell .tool-heading-copy p:last-child {
  margin: .45rem 0 0;
  color: var(--color-muted);
  font-size: .9rem;
  max-width: 80ch;
}

.page-shell button:not(:disabled),
.page-shell [role="button"]:not(:disabled) { cursor: pointer; }

.page-shell button:disabled { opacity: 0.45; cursor: default; }

.page-shell h1, .page-shell h2, .page-shell h3 {
  text-wrap: balance;
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  line-height: 1.12;
  font-weight: 500;
  margin: 0;
}

.page-shell p { text-wrap: pretty; }

.page-shell a { color: inherit; }

.page-shell :focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

html[data-theme="light"] .page-shell {
  --color-bg: #e7eef1;
  --color-surface: #f7fafb;
  --color-surface-2: #dfe6ea;
  --color-fg: #15181d;
  --color-muted: #5a6068;
  --color-subtle: #6e757d;
  --color-accent: #2f6f80;
  --color-accent-fg: #f3fbfc;
  --color-warn: #8a5a20;
  --color-ok: #2c6a56;
  --color-danger: #9a3f36;
  --color-sim: #c5d0d6;
  --color-sim-road: #8a939c;
  --color-sim-lane: #9aa2a9;
  --color-sim-ppi: #d5dce0;
  --color-car: #2a3038;
  --color-wheel: #dfe6ea;
  --color-sim-car: #f4f7f8;
}

.page-shell {
  min-height: min(860px, calc(100vh - 150px));
  border: 1px solid color-mix(in oklab, var(--color-accent) 10%, transparent);
  border-radius: 18px !important;
  overflow: hidden;
  isolation: isolate;
  clip-path: inset(0 round 18px);
  background:
    radial-gradient(1200px 480px at 12% -10%, color-mix(in oklab, var(--color-accent) 10%, transparent), transparent 60%),
    var(--color-bg);
}

.page-shell .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0 1.1rem;
  border: 0;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: scale 150ms ease-out, background-color 150ms ease-out, box-shadow 150ms ease-out;
}

.page-shell .btn:active:not(:disabled) { scale: 0.96; }

.page-shell .btn-primary {
  background: var(--color-fg);
  color: var(--color-accent-fg);
}

.page-shell .btn-ghost {
  background: transparent;
  color: var(--color-fg);
  box-shadow: var(--shadow-border);
}

.page-shell .btn-chip {
  min-height: 40px;
  padding: 0 0.85rem;
  border-radius: 999px;
  background: transparent;
  color: var(--color-muted);
  box-shadow: var(--shadow-border);
  font-size: 0.8125rem;
  border: 0;
  font-family: var(--font-sans);
}

.page-shell .btn-chip[aria-pressed="true"] {
  background: var(--color-accent);
  color: var(--color-accent-fg);
  box-shadow: none;
}

.page-shell .section-index {
  display: flex;
  gap: .45rem;
  overflow-x: auto;
  padding: .75rem 0 .25rem;
  margin-top: .25rem;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--shadow-border-color, color-mix(in oklab, var(--color-fg) 7%, transparent));
}
.page-shell .section-index a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 .7rem;
  border-radius: 999px;
  color: var(--color-muted);
  text-decoration: none;
  font-size: .74rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.page-shell .section-index a:hover {
  color: var(--color-fg);
  background: color-mix(in oklab, var(--color-accent) 9%, transparent);
}

.page-shell .section { padding: 4rem 0; }
.page-shell .hero { padding-top: 2.15rem; }

@media (min-width: 768px) {
  .page-shell .hero { padding-top: 4rem; }
}

.page-shell .h1 { font-size: clamp(1.85rem, 4vw, 3rem); max-width: 18ch; }
.page-shell .h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); max-width: 22ch; }
.page-shell .h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }

.page-shell .kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

.page-shell .lede {
  color: var(--color-muted);
  font-size: 1.0625rem;
  max-width: 62ch;
  margin: 1rem 0 0;
}

.page-shell .muted { color: var(--color-muted); }
.page-shell .subtle { color: var(--color-subtle); font-size: 0.8125rem; }
.page-shell .cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

.page-shell .prose-block p {
  color: var(--color-muted);
  margin: 0 0 1rem;
  max-width: 68ch;
}

.page-shell .formula-card {
  background: var(--color-surface);
  box-shadow: var(--shadow-border);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.35rem;
  margin-top: 1.5rem;
}

.page-shell .formula-card .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-subtle);
  margin: 0 0 0.5rem;
}

.page-shell .formula-card .eq {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--color-accent);
  margin: 0 0 0.6rem;
}

.page-shell .formula-card .note {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.page-shell .sim-panel {
  background: var(--color-surface);
  box-shadow: var(--shadow-border);
  border-radius: var(--radius-2xl);
  padding: 10px;
  overflow: hidden;
}

.page-shell .sim-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.35rem 0.45rem 0.75rem;
  align-items: center;
}

.page-shell .sim-canvas-wrap {
  position: relative;
  border-radius: calc(var(--radius-2xl) - 10px);
  overflow: hidden;
  background: var(--color-sim);
  height: min(62vh, 440px);
  box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--color-fg) 6%, transparent);
}

.page-shell .sim-canvas-wrap.tall { height: min(68vh, 520px); }

.page-shell .sim-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.page-shell .sim-readout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem 1rem;
  padding: 0.85rem 0.7rem 0.45rem;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 640px) {
  .page-shell .sim-readout { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.page-shell .sim-readout dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-subtle);
  margin: 0 0 0.15rem;
}

.page-shell .sim-readout dd { margin: 0; font-size: 0.95rem; }

.page-shell .sim-hint {
  margin: 0;
  padding: 0.75rem 0.7rem 0.5rem;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.page-shell .slider-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 140px;
  flex: 1;
}

.page-shell .slider-field span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-subtle);
}

.page-shell .slider-field input[type="range"] {
  width: 100%;
  accent-color: var(--color-accent);
  height: 44px;
}

.page-shell .sensor-card {
  background: var(--color-surface);
  box-shadow: var(--shadow-border);
  border-radius: var(--radius-xl);
  padding: 1.15rem 1.2rem;
}

.page-shell .sensor-card[data-active="true"] {
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--color-accent) 55%, transparent);
}

.page-shell .sensor-card .kind {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  margin: 0.2rem 0 0.55rem;
}

.page-shell .sensor-list { list-style: none; margin: 1.25rem 0 0; padding: 0; display: grid; gap: 0.5rem; }

.page-shell .ev-grid { display: grid; gap: 0.85rem; }
@media (min-width: 768px) {
  .page-shell .ev-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.page-shell .sae-track {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .page-shell .sae-track { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

.page-shell .sae-btn {
  min-height: 52px;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-muted);
  box-shadow: var(--shadow-border);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
}

.page-shell .sae-btn[aria-pressed="true"] {
  background: var(--color-fg);
  color: var(--color-accent-fg);
  box-shadow: none;
}

.page-shell .quiz-option {
  display: flex;
  width: 100%;
  text-align: left;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-fg);
  box-shadow: var(--shadow-border);
  font-size: 0.9375rem;
  font-family: var(--font-sans);
}

.page-shell .quiz-option[data-state="picked"] {
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--color-accent) 70%, transparent);
}

.page-shell .quiz-option[data-state="right"] {
  background: color-mix(in oklab, var(--color-ok) 18%, var(--color-surface));
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--color-ok) 50%, transparent);
}

.page-shell .quiz-option[data-state="wrong"] {
  background: color-mix(in oklab, var(--color-danger) 16%, var(--color-surface));
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--color-danger) 45%, transparent);
}

.page-shell .split-copy { display: grid; gap: 1.5rem; margin-top: 2rem; }
@media (min-width: 960px) {
  .page-shell .split-copy {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.5rem;
    align-items: start;
  }
}

.page-shell .stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 2.25rem;
}

.page-shell .stat-row strong {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  font-weight: 500;
}

.page-shell .stat-row span {
  display: block;
  margin-top: 0.25rem;
  color: var(--color-subtle);
  font-size: 0.75rem;
}

.page-shell .mt-3 { margin-top: 0.75rem; }
.page-shell .mt-4 { margin-top: 1rem; }
.page-shell .mt-5 { margin-top: 1.25rem; }
.page-shell .mt-8 { margin-top: 2rem; }
.page-shell .mb-0 { margin-bottom: 0; }
.page-shell .score-line {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-subtle);
}

@media (prefers-reduced-motion: reduce) {
  .page-shell *, .page-shell *::before, .page-shell *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}


/* ---------- Internationalisation / RTL ---------- */
html[dir="rtl"] .page-shell { text-align: right; }
html[dir="rtl"] .page-shell .formula-card .eq, html[dir="rtl"] .page-shell .formula-card .label { direction: ltr; text-align: left; }

/* Keep scientific/canvas diagrams in their physical coordinate system; only the surrounding UI is RTL. */
.page-shell canvas { direction: ltr; }

/* Theme-safe browser controls */
.page-shell input[type="range"] { accent-color: var(--color-accent); }


@media (max-width: 760px) {
  .page-wrap.page-wrap-adas-lab { padding-left: 6px; padding-right: 6px; border-radius: 14px; }
  .adas-wrap { padding-left: .15rem; padding-right: .15rem; }
  .page-shell .tool-heading {
    grid-template-columns: auto minmax(0, 1fr);
    gap: .8rem;
    margin-top: .2rem;
    padding: 1rem .85rem 1.05rem;
    border-radius: 17px;
  }
  .page-shell .tool-heading-mark { width: 46px; height: 46px; border-radius: 13px; font-size: .62rem; }
  .page-shell .tool-heading-copy h1 { font-size: clamp(1.15rem, 5vw, 1.55rem); }
  .page-shell .tool-heading-copy p:last-child { font-size: .82rem; line-height: 1.35; }
  .page-shell .section { padding: 3rem 0; }
  .page-shell .hero { padding-top: 1.5rem; }
  .page-shell .sim-panel { border-radius: 20px; padding: 8px; }
  .page-shell .sim-toolbar { gap: .4rem; padding-left: .25rem; padding-right: .25rem; }
  .page-shell .btn-chip { padding: .55rem .72rem; font-size: .78rem; }
}

@media (max-width: 430px) {
  .page-shell .tool-heading { grid-template-columns: 1fr; }
  .page-shell .tool-heading-mark { width: 44px; height: 44px; }
  .page-shell .tool-heading-copy h1 { font-size: 1.35rem; }
  .page-shell .tool-heading-copy p:last-child { max-width: none; }
  .page-shell .sim-canvas-wrap { height: min(58vh, 390px); }
}