.guide-page {
  display: grid;
  gap: var(--space-lg);
}

.home-guide {
  display: grid;
  gap: var(--space-lg);
  scroll-margin-top: 5.5rem;
}

.home-guide .guide-hero-panel {
  margin-top: 0;
}

.guide-lazy-img {
  opacity: 0;
  background: var(--color-surface-soft);
  transition: opacity 200ms ease;
}

.guide-lazy-img.is-loaded {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .guide-lazy-img {
    opacity: 1;
    transition: none;
  }
}

.guide-hero-panel {
  position: relative;
  overflow: hidden;
  padding: var(--space-xl);
  background:
    radial-gradient(
      ellipse 70% 55% at 100% 0%,
      color-mix(in srgb, var(--color-accent) 14%, transparent),
      transparent 70%
    ),
    radial-gradient(
      ellipse 55% 45% at 0% 100%,
      color-mix(in srgb, var(--color-focus) 10%, transparent),
      transparent 65%
    ),
    var(--card-bg);
}

.guide-hero-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    color-mix(in srgb, var(--color-accent) 6%, transparent) 0,
    color-mix(in srgb, var(--color-accent) 6%, transparent) 1px,
    transparent 1px,
    transparent 2.75rem
  );
  mask-image: linear-gradient(90deg, transparent 0%, #000 35%, #000 100%);
  opacity: 0.55;
}

.guide-hero-panel .hero-copy {
  position: relative;
  z-index: 1;
  max-width: 40rem;
}

.guide-hero-panel h1,
.guide-hero-panel h2 {
  margin-top: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.guide-hero-panel .hero-lede {
  max-width: 48ch;
}

.guide-hero-meta {
  margin: var(--space-sm) 0 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.guide-phase-strip {
  list-style: none;
  margin: var(--space-lg) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.guide-phase {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--card-border);
  background: color-mix(in srgb, var(--color-surface-soft) 70%, transparent);
  color: var(--color-text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 150ms ease, background 150ms ease, color 150ms ease;
}

.guide-hero-panel .guide-phase {
  background: var(--color-surface);
}

.guide-phase:hover {
  border-color: color-mix(in srgb, var(--color-accent) 45%, var(--card-border));
  color: var(--color-text);
}

.guide-phase:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.guide-phase-marker {
  width: 1.25rem;
  height: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--color-line);
  color: var(--color-text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.guide-layout {
  display: grid;
  gap: var(--space-lg);
  align-items: start;
}

@media (min-width: 1100px) {
  .guide-layout {
    grid-template-columns: 14rem minmax(0, 1fr);
    gap: var(--space-xl);
  }
}

.guide-toc-panel {
  padding: var(--space-lg);
}

@media (min-width: 1100px) {
  .guide-toc-panel {
    position: sticky;
    top: calc(var(--space-lg) + 4.5rem);
  }
}

.guide-toc-title {
  margin: 0 0 var(--space-sm);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.guide-toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.guide-toc a {
  display: block;
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
  transition: background-color 150ms ease, color 150ms ease;
}

.guide-toc a:hover {
  background: color-mix(in srgb, var(--color-accent) 12%, transparent);
  color: var(--color-primary);
}

.guide-toc a.is-active {
  background: color-mix(in srgb, var(--color-accent) 18%, transparent);
  color: var(--color-primary);
  font-weight: 600;
}

.guide-toc a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.guide-content {
  display: grid;
  gap: var(--space-lg);
  min-width: 0;
}

.guide-section-panel {
  padding: var(--space-xl);
  scroll-margin-top: 5.5rem;
}

.guide-section-panel .section-header {
  margin-bottom: var(--space-lg);
}

.guide-step-range {
  display: inline-block;
  margin-top: var(--space-xs);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  background: var(--color-tag);
  color: var(--color-accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.guide-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-xl);
}

.guide-step {
  display: grid;
  gap: var(--space-sm);
  scroll-margin-top: 5.5rem;
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-line);
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.guide-step:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.guide-step-copy {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.guide-step h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.guide-step p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.55;
  max-width: 42rem;
}

.guide-step-badge {
  flex-shrink: 0;
  width: 1.85rem;
  height: 1.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent-strong);
  color: var(--color-on-accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.guide-step .install-shot {
  margin-top: var(--space-sm);
}

.guide-step .install-shot img {
  width: 100%;
  height: auto;
  max-width: 52rem;
  object-fit: contain;
  display: block;
}

.guide-step .install-shot img[data-lightbox] {
  cursor: zoom-in;
}

.guide-step .install-shot img[data-lightbox]:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.guide-step-phone .install-shot img {
  max-width: 28rem;
  margin-inline: auto;
}

.guide-note {
  margin-top: var(--space-md);
  border-inline-start: 3px solid var(--color-accent);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.guide-note-icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
  color: var(--color-accent);
}

.guide-note p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.guide-cta-panel {
  padding: var(--space-xl);
  text-align: center;
}

.guide-cta-panel .section-header {
  margin-bottom: var(--space-md);
}

.guide-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

@media (max-width: 768px) {
  .guide-hero-panel,
  .guide-section-panel,
  .guide-cta-panel,
  .guide-toc-panel {
    padding: var(--space-lg);
  }

  .guide-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .guide-toc a {
    padding: 0.35rem 0.7rem;
    background: color-mix(in srgb, var(--color-accent) 10%, transparent);
    font-size: 0.9rem;
  }

  .guide-toc a.is-active {
    background: color-mix(in srgb, var(--color-accent) 22%, transparent);
  }
}

@media (prefers-reduced-motion: reduce) {
  .guide-toc a,
  .guide-phase {
    transition: none;
  }
}