/* ── Mobile & touch (phones / iPhone) ─────────────────────── */

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

.site-header {
  padding-top: env(safe-area-inset-top);
  height: calc(var(--nav-h) + env(safe-area-inset-top));
}

main {
  padding-top: calc(var(--nav-h) + env(safe-area-inset-top));
}

.site-footer {
  padding-bottom: calc(2rem + env(safe-area-inset-bottom));
}

.container {
  width: min(1120px, 100% - 1.5rem);
}

.hero-actions {
  flex-wrap: wrap;
}

.validation-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 2rem;
}

.validation-table {
  min-width: 520px;
}

.principles-grid .principle {
  border-right: none;
}

/* NVE intro hero — small screens */
.nve-intro-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.15rem 0.35rem;
}

.nve-intro-prompt {
  white-space: nowrap;
  flex-shrink: 0;
}

.nve-intro-typed {
  flex: 1 1 12rem;
  min-width: 0;
  word-break: break-word;
}

.nve-intro-scroll-hint {
  bottom: calc(clamp(1.75rem, 5vh, 3rem) + env(safe-area-inset-bottom));
}

.page-nve .page-header-compact {
  padding-top: clamp(2rem, 6vh, 3rem);
}

.page-nve .page-header-compact h1 {
  font-size: clamp(1.35rem, 5.5vw, 2rem);
}

.page-nve .breadcrumb {
  font-size: 0.62rem;
  line-height: 1.5;
  word-break: break-word;
}

/* Terminal navigator — touch (all coarse pointers) */
.terminal-pane-list,
.terminal-pane-viewer,
.viewer-panel,
.viewer-image-wrap {
  -webkit-overflow-scrolling: touch;
}

.nav-item {
  min-height: 44px;
  align-items: center;
  -webkit-tap-highlight-color: rgba(139, 156, 179, 0.15);
  touch-action: manipulation;
}

.terminal-back {
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 0.75rem;
  touch-action: manipulation;
}

/* Mobile control strip (frame prev/next) */
.nav-mobile-controls {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.55rem 1rem calc(0.55rem + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(14, 16, 22, 0.98) 0%, rgba(10, 12, 17, 0.98) 100%);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

body.is-touch .nav-mobile-controls {
  display: flex;
}

.nav-mobile-controls[hidden] {
  display: none !important;
}

.nav-mobile-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0 0.85rem;
  border-radius: var(--radius, 6px);
  border: 1px solid var(--border-hover, rgba(255, 255, 255, 0.14));
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.nav-mobile-btn:not(:disabled):active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.nav-mobile-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.nav-mobile-hint {
  flex: 1;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  min-width: 0;
}

/* Frame viewer — stack on phone */
@media (max-width: 899px) {
  .terminal-navigator {
    touch-action: manipulation;
  }

  .terminal-pane-viewer {
    grid-template-rows: minmax(38%, 1fr) minmax(0, 1fr);
  }

  .viewer-image-wrap {
    max-height: 42vh;
    overflow: auto;
    touch-action: pan-x pan-y pinch-zoom;
  }

  .viewer-zoom-wrap img {
    max-width: none;
    width: 100%;
    height: auto;
  }

  .terminal-status {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.5rem 0.75rem;
    padding-bottom: calc(0.65rem + env(safe-area-inset-bottom, 0px));
  }

  .terminal-path {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
  }

  .terminal-keys {
    grid-column: 1 / -1;
    font-size: 0.62rem;
    line-height: 1.4;
  }
}

body.is-touch .nav-glass-bubble {
  opacity: 0.85;
}

body.is-touch .nav-item.selected {
  transform: none;
}

.card-preview-terminal {
  margin: 0.85rem;
}

.card-preview-list li em {
  display: block;
  margin-top: 0.15rem;
}

.spec-row {
  grid-template-columns: 1fr;
  gap: 0.35rem;
}

@media (max-width: 640px) {
  .logo-text {
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    max-width: 9.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .site-nav {
    top: calc(var(--nav-h) + env(safe-area-inset-top));
    padding-bottom: env(safe-area-inset-bottom);
    max-height: calc(100dvh - var(--nav-h) - env(safe-area-inset-top));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .terminal-navigator {
    min-height: min(68dvh, 640px);
    height: min(68dvh, 640px);
  }

  .nav-item {
    grid-template-columns: 1rem minmax(0, 1fr);
    grid-template-rows: auto auto;
    padding: 0.65rem 0.55rem;
  }

  .nav-label {
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
  }

  .nav-desc {
    grid-column: 2;
    white-space: normal;
    line-height: 1.45;
  }

  .nav-hint {
    line-height: 1.5;
  }

  .hero {
    min-height: auto;
    padding: clamp(2.5rem, 8vh, 4rem) 0;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(1.65rem, 7vw, 2.25rem);
  }

  .footer-disclaimer {
    max-width: none;
  }

  .nve-terminal-section.container {
    max-width: 100%;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
}

@media (max-width: 380px) {
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (hover: none) and (pointer: coarse) {
  .terminal-keys.is-touch-hidden {
    display: none;
  }
}