/* ============================================================================
   THE MAINFRAME — Blueprint schematic + sparse text overlay
   Dark navy canvas fills section. Text at corners. Canvas IS the hero.
   ============================================================================ */

.mainframe {
  background: var(--color-bg-dark);
  color: #ffffff;
  width: 100%;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.mainframe__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* --------------------------------------------------------------------------
   OVERLAY — corner-pinned text, not centered
   -------------------------------------------------------------------------- */

.mainframe__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  pointer-events: none;
  padding: var(--space-3xl);
  z-index: 1;
}

.mainframe__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.mainframe__bottom {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

/* --------------------------------------------------------------------------
   HEADLINE — top-left
   -------------------------------------------------------------------------- */

.mainframe__headline {
  font-size: clamp(3rem, 6vw, 4rem);
  font-weight: var(--weight-black);
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: #fff;
  margin: 0;
  opacity: 0;
  transform: translateY(12px);
}

.mainframe--visible .mainframe__headline {
  animation: mainframe-reveal 0.6s var(--ease-snappy) forwards;
}

.mainframe__dot {
  color: #3b82f6;
  text-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
}

.mainframe__subtitle {
  font-size: var(--text-base);
  font-weight: var(--weight-light);
  color: rgba(148, 163, 184, 0.5);
  margin: var(--space-sm) 0 0;
  letter-spacing: var(--tracking-wide);
  opacity: 0;
  transform: translateY(8px);
}

.mainframe--visible .mainframe__subtitle {
  animation: mainframe-reveal 0.5s var(--ease-snappy) 0.3s forwards;
}

/* --------------------------------------------------------------------------
   TAG — top-right
   -------------------------------------------------------------------------- */

.mainframe__tag {
  font-family: 'SF Mono', 'Menlo', monospace;
  font-size: 0.6rem;
  font-weight: var(--weight-normal);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(148, 163, 184, 0.25);
  text-align: right;
  line-height: 1.8;
  opacity: 0;
}

.mainframe--visible .mainframe__tag {
  animation: mainframe-reveal 0.4s ease 0.2s forwards;
}

/* --------------------------------------------------------------------------
   LEAD — bottom-left
   -------------------------------------------------------------------------- */

.mainframe__lead {
  font-size: 1.05rem;
  font-weight: var(--weight-light);
  color: rgba(226, 232, 240, 0.65);
  max-width: 40ch;
  line-height: 1.6;
  margin: 0;
  opacity: 0;
  transform: translateY(8px);
}

.mainframe--visible .mainframe__lead {
  animation: mainframe-reveal 0.5s var(--ease-snappy) 0.8s forwards;
}

/* --------------------------------------------------------------------------
   STAT — bottom-right
   -------------------------------------------------------------------------- */

.mainframe__stat {
  text-align: right;
  opacity: 0;
}

.mainframe--visible .mainframe__stat {
  animation: mainframe-reveal 0.4s ease 1s forwards;
}

.mainframe__stat-value {
  font-size: 2.5rem;
  font-weight: var(--weight-extrabold);
  color: #3b82f6;
  line-height: 1;
}

.mainframe__stat-label {
  font-family: 'SF Mono', 'Menlo', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(148, 163, 184, 0.3);
  margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   ANIMATION
   -------------------------------------------------------------------------- */

@keyframes mainframe-reveal {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   MOBILE
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
  .mainframe {
    height: 80vh;
  }

  .mainframe__overlay {
    padding: var(--space-xl);
  }

  .mainframe__headline {
    font-size: var(--text-4xl);
  }

  .mainframe__tag {
    display: none;
  }

  .mainframe__lead {
    font-size: var(--text-sm);
    max-width: 30ch;
  }

  .mainframe__stat-value {
    font-size: var(--text-2xl);
  }
}