/* Mobile / small viewport — load after page <style> so these rules win.
   Focus: safe-area padding, vertical rhythm, tap targets, lighter decor for performance. */

@media (max-width: 900px) {
  .container {
    padding-left: max(20px, env(safe-area-inset-left, 0px));
    padding-right: max(20px, env(safe-area-inset-right, 0px));
  }

  .header-top {
    padding-top: max(24px, env(safe-area-inset-top, 0px));
    align-items: center;
  }

  .site-nav {
    padding-top: 16px;
    padding-bottom: 20px;
    row-gap: 12px;
    align-items: center;
  }

  .site-nav a {
    padding: 6px 0;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .site-nav .sep {
    margin: 0 6px;
  }

  footer {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 14px;
    padding-top: 56px;
    padding-bottom: max(40px, env(safe-area-inset-bottom, 0px));
  }

  .lede {
    margin-bottom: clamp(40px, 10vw, 64px) !important;
  }

  .hero {
    padding-top: clamp(72px, 14vh, 120px) !important;
    padding-bottom: clamp(48px, 8vh, 96px) !important;
  }

  .section-label {
    margin-top: clamp(48px, 12vw, 88px) !important;
    margin-bottom: clamp(20px, 5vw, 36px) !important;
  }

  .manifesto {
    padding-top: 72px !important;
    padding-bottom: 88px !important;
  }

  .humanity {
    padding-top: 72px !important;
    padding-bottom: 72px !important;
  }

  .graph-container,
  .growth-path-viz {
    height: min(320px, 52vw) !important;
    min-height: 240px;
  }

  .vector-space {
    height: min(380px, 58vw) !important;
    min-height: 280px;
  }

  .footprint-map {
    min-height: min(520px, 85vh) !important;
  }

  .code-window {
    padding: 24px 18px !important;
    font-size: 0.78rem !important;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .log-item {
    padding: 28px 22px !important;
  }

  .matrix-item,
  .data-card {
    padding: 40px 24px !important;
  }

  .method-grid {
    grid-template-columns: 1fr 1fr !important;
  }

  .final-cta {
    padding-top: 72px !important;
    padding-bottom: 72px !important;
  }

  .closer {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    padding-top: 64px !important;
  }

  .position-line {
    padding-top: 40px !important;
    padding-bottom: 64px !important;
    margin-bottom: 80px !important;
  }

  .rest-strip {
    padding-top: 48px !important;
    padding-bottom: 64px !important;
  }

  .outcome-frame {
    margin-bottom: 96px !important;
  }

  .stake,
  .record {
    margin-bottom: 96px !important;
  }
}

@media (max-width: 640px) {
  html {
    -webkit-text-size-adjust: 100%;
  }

  .container {
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
  }

  .method-grid {
    grid-template-columns: 1fr !important;
  }

  .record {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
    padding: 12px 0 !important;
  }

  .record-item {
    border-left: none;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 20px;
  }

  .record-item:first-child {
    border-top: none;
    padding-top: 0;
  }

  .stat-row {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }

  .stat-item {
    border-left: none;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 20px;
  }

  .stat-item:first-child {
    border-top: none;
    padding-top: 0;
  }

  .stat-val,
  .tier-val {
    font-size: clamp(2.2rem, 12vw, 3.2rem) !important;
  }

  h1 {
    font-size: clamp(2.15rem, 10vw, 3.4rem) !important;
    line-height: 0.98 !important;
  }

  .logo {
    letter-spacing: 0.22em;
    font-size: 1.05rem;
  }

  .stake-card {
    padding: 36px 22px 40px !important;
  }

  .form-block {
    padding: 28px 20px !important;
  }

  .grid {
    gap: 40px !important;
    margin-bottom: 72px !important;
  }

  .cta-button,
  .cta-btn,
  .btn {
    width: 100%;
    max-width: 100%;
    text-align: center;
    box-sizing: border-box;
    touch-action: manipulation;
  }

  .hero-actions {
    width: 100%;
  }

  .config-btn {
    min-height: 44px;
    touch-action: manipulation;
  }

  .partner {
    min-height: 56px;
    touch-action: manipulation;
  }

  .tiers {
    grid-template-columns: 1fr !important;
  }

  .tier-item {
    padding: 32px 16px !important;
  }

  .meta-row {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .catalyst-card {
    padding: 32px 22px !important;
  }

  .case-card {
    padding: 32px 22px 36px !important;
  }

  .footprint-map {
    min-height: min(400px, 72vh) !important;
  }

  .stat {
    padding: 32px 20px !important;
  }
}

/* Lighter page chrome on phones — less paint, calmer scroll */
@media (max-width: 768px) {
  body::before {
    opacity: 0.14 !important;
  }

  html.neural-site body::after {
    opacity: 0.006 !important;
    background-size: 240px 240px !important;
  }
}