/* ==========================================================================
   The Lab Page
   Manifesto + Zone Gate layout.
   ========================================================================== */

/* Nav is always dark on non-hero pages */
body[data-page="the-lab"] .nav {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* --------------------------------------------------------------------------
   Lab Hero
   -------------------------------------------------------------------------- */
.lab-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
  padding: var(--space-40) var(--content-padding) var(--space-24);
  padding-top: calc(var(--space-40) + 80px);
}

.lab-hero__title {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 300;
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.lab-hero__sub {
  font-family: var(--font-body);
  font-size: var(--text-subhead);
  font-weight: 400;
  color: var(--color-text-secondary);
  letter-spacing: var(--tracking-normal);
}

/* --------------------------------------------------------------------------
   Manifesto Section
   -------------------------------------------------------------------------- */
.lab-manifesto {
  padding: var(--space-32) var(--content-padding);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.manifesto-fragment {
  font-family: var(--font-display);
  font-size: var(--text-heading);
  font-weight: 300;
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
  text-align: center;
  max-width: var(--content-narrow);
  width: 100%;
}

/* Spacing between fragments */
.manifesto-fragment + .manifesto-fragment {
  margin-top: var(--space-20);
}

/* --------------------------------------------------------------------------
   Zone Gate Section
   -------------------------------------------------------------------------- */
.zone-gate {
  padding: var(--space-32) var(--content-padding);
  background-color: var(--color-bg-secondary);
}

.zone-gate__label {
  font-family: var(--font-body);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-muted);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: var(--space-12);
}

.zone-gate__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  max-width: 960px;
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   Zone Card
   -------------------------------------------------------------------------- */
.zone-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 360px;
  padding: var(--space-8);
  background-color: var(--color-black);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

/* Subtle inner gradient for depth */
.zone-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.9) 0%,
    rgba(10, 10, 10, 0.2) 60%,
    transparent 100%
  );
  z-index: 1;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.zone-card:hover {
  border-color: var(--color-warm-gray);
  box-shadow: var(--shadow-elevated);
  transform: translateY(-3px);
}

.zone-card:active {
  transform: translateY(-1px);
}

.zone-card__inner {
  position: relative;
  z-index: 2;
}

.zone-card__label {
  font-family: var(--font-display);
  font-size: var(--text-heading);
  font-weight: 300;
  letter-spacing: var(--tracking-tight);
  color: var(--color-white);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.zone-card__descriptor {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  color: var(--color-warm-gray);
}

/* --------------------------------------------------------------------------
   Bottom CTA Section
   -------------------------------------------------------------------------- */
.lab-cta {
  padding: var(--space-32) var(--content-padding);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
}

/* --------------------------------------------------------------------------
   Divider
   -------------------------------------------------------------------------- */
.lab-divider {
  width: 1px;
  height: var(--space-16);
  background: var(--color-mid-gray);
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   Responsive — Tablet
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .zone-gate__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .zone-card:last-child {
    grid-column: 1 / -1;
    max-width: calc(50% - var(--space-3));
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .lab-hero {
    min-height: 50vh;
    padding-top: var(--space-32);
    padding-bottom: var(--space-16);
  }

  .lab-manifesto {
    padding-block: var(--space-20);
  }

  .manifesto-fragment + .manifesto-fragment {
    margin-top: var(--space-12);
  }

  .zone-gate {
    padding-block: var(--space-20);
  }

  .zone-gate__grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .zone-card:last-child {
    grid-column: auto;
    max-width: none;
  }

  .zone-card {
    min-height: 240px;
  }

  .lab-cta {
    padding-block: var(--space-20);
  }
}

@media (max-width: 480px) {
  .lab-hero {
    padding-top: var(--space-24);
  }

  .zone-card {
    min-height: 200px;
  }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .zone-card {
    transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  }

  .zone-card:hover {
    transform: none;
  }

  .zone-card::before {
    transition: none;
  }
}