:root {
  --brand-50: #fde8ec;
  --brand-100: #f9d0d9;
  --brand-600: #b01030;
  --brand-700: #8c0d26;
  --ink-900: #0f172a;
  --ink-600: #475569;
  --ink-500: #64748b;
  --ink-400: #94a3b8;
  --line-300: #cbd5e1;
  --line-200: #e2e8f0;
  --bg-100: #f8fafc;
  --white: #ffffff;
  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --content-max: 1140px;
  --page-pad-x: 40px;
  --topbar-h: 56px;
  --r-md: 4px;
  --r-lg: 6px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-900);
  background: var(--bg-100);
}

a {
  color: var(--brand-600);
}

a:hover {
  color: var(--brand-700);
}

.labs-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
  text-align: center;
}

.labs-gate[hidden],
.labs-page[hidden] {
  display: none !important;
}

.labs-gate__card {
  max-width: 420px;
  background: var(--white);
  border: 1px solid var(--line-200);
  border-radius: var(--r-lg);
  padding: 28px 24px;
}

.labs-gate__card h1 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 600;
}

.labs-gate__card p {
  margin: 0;
  color: var(--ink-600);
}

.labs-gate__card a {
  display: inline-block;
  margin-top: 18px;
}

.labs-shell {
  max-width: var(--content-max);
  margin: 0 auto;
  background: var(--bg-100);
}

/* Topbar */
.labs-topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 var(--page-pad-x);
  border-bottom: 1px solid var(--line-200);
  background: var(--white);
}

.labs-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink-900);
}

.labs-brand img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: block;
}

.labs-brand__name {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.labs-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.labs-nav a {
  text-decoration: none;
  color: var(--ink-600);
  font-size: 13.5px;
  font-weight: 500;
}

.labs-nav a:hover {
  color: var(--ink-900);
}

.labs-topbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.labs-badge-lab {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--brand-600);
  background: var(--brand-50);
  border: 1px solid var(--brand-100);
  border-radius: var(--r-md);
  padding: 4px 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--r-md);
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.btn-primary {
  background: var(--brand-600);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--brand-700);
  color: var(--white);
}

.btn-secondary {
  background: var(--white);
  color: var(--ink-900);
  border-color: var(--line-300);
}

.btn-secondary:hover {
  border-color: var(--ink-500);
  color: var(--ink-900);
}

/* Hero */
.labs-hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  padding: 52px var(--page-pad-x) 40px;
  align-items: center;
}

.labs-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brand-600);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.labs-hero h1 {
  margin: 0;
  font-size: 42px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ink-900);
  text-wrap: balance;
}

.labs-lead {
  font-size: 16px;
  color: var(--ink-600);
  line-height: 1.6;
  margin: 16px 0 0;
  max-width: 480px;
  text-wrap: pretty;
}

.labs-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.labs-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-500);
}

.labs-spin-caption {
  text-align: center;
  margin-top: 14px;
}

.labs-spin-caption__id {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--brand-600);
}

.labs-spin-caption__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-900);
  margin-top: 4px;
}

/* Feature cards */
.labs-features {
  padding: 0 var(--page-pad-x) 52px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.panel-card {
  background: var(--white);
  border: 1px solid var(--line-200);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.panel-card__label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-500);
  padding: 10px 16px 0;
}

.panel-card__body {
  padding: 14px 16px;
}

.panel-card__body h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
}

.panel-card__body p {
  margin: 4px 0 0;
  font-size: 12.5px;
  color: var(--ink-500);
  line-height: 1.55;
}

.panel-card--brand .panel-card__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-200);
  background: var(--white);
}

.panel-card--brand .panel-card__label {
  padding: 0;
  color: var(--brand-600);
}

.panel-card--brand .panel-card__meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-400);
}

/* EZ section */
.labs-ez {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  padding: 0 var(--page-pad-x) 56px;
  align-items: center;
}

.labs-ez h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-900);
  text-wrap: balance;
}

.labs-ez p {
  font-size: 14px;
  color: var(--ink-600);
  line-height: 1.6;
  margin: 12px 0 0;
  max-width: 440px;
  text-wrap: pretty;
}

.labs-ez-visual img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.labs-kpis {
  display: flex;
  border-top: 1px solid var(--line-200);
}

.kpi-tile {
  flex: 1;
  padding: 12px 14px;
  border-right: 1px solid var(--line-200);
}

.kpi-tile:last-child {
  border-right: none;
}

.kpi-tile__label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-500);
}

.kpi-tile__value {
  margin-top: 4px;
  font-size: 22px;
  font-weight: 600;
  color: var(--ink-900);
  letter-spacing: -0.02em;
}

/* Footer */
.labs-footer {
  background: var(--ink-900);
  color: #fff;
  padding: 16px var(--page-pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.labs-footer__copy {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-400);
}

.labs-footer__links {
  display: flex;
  gap: 22px;
  font-size: 12.5px;
}

.labs-footer__links a {
  color: #cbd5e1;
  text-decoration: none;
}

.labs-footer__links a:hover {
  color: #fff;
}

/* iPad mount */
#ipad-spin-root {
  min-height: 440px;
}

@media (max-width: 980px) {
  .labs-hero,
  .labs-ez {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .labs-features {
    grid-template-columns: 1fr 1fr;
  }

  .labs-hero h1 {
    font-size: 34px;
  }

  .labs-nav {
    display: none;
  }
}

@media (max-width: 640px) {
  :root {
    --page-pad-x: 20px;
  }

  .labs-hero {
    padding-top: 36px;
  }

  .labs-hero h1 {
    font-size: 28px;
  }

  .labs-features {
    grid-template-columns: 1fr;
  }

  .labs-ez h2 {
    font-size: 24px;
  }

  #ipad-spin-root {
    min-height: 320px;
  }

  .labs-topbar__actions .btn {
    display: none;
  }
}