/* ============================================================================
   Burton v7 — Learning Path
   ----------------------------------------------------------------------------
   THE signature component of the category page. Four stages:
     Understand -> Compare -> Decide -> Buy
   Top: a visual progress timeline (4 nodes + connecting rail).
   Bottom: 4 stage cards, each listing curated articles at that depth.
   ========================================================================= */

.path-journey {
  padding-block: var(--space-12);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}

@media (min-width: 720px) {
  .path-journey { padding-block: var(--space-16); }
}

@media (min-width: 900px) {
  .path-journey { padding-block: var(--space-20); }
}

.path-journey__header {
  max-width: 58ch;
  margin-bottom: var(--space-12);
}

.path-journey__eyebrow {
  margin-bottom: var(--space-4);
}

.path-journey__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: var(--fs-3xl);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-snug);
  color: var(--color-ink);
  margin-bottom: var(--space-4);
}

.path-journey__title em {
  color: var(--color-accent);
  font-style: italic;
}

.path-journey__lede {
  font-family: var(--font-serif);
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-muted);
}

/* ── Timeline (the visual progress rail) ──────────────────────────────── */

.path-journey__timeline {
  position: relative;
  margin-bottom: var(--space-10);
  padding-block: var(--space-6);
}

/* Connecting rail — absolute, behind the nodes */
.path-journey__timeline::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--color-line);
  transform: translateY(-50%);
  z-index: 0;
}

.path-journey__nodes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  position: relative;
  z-index: 1;
}

.path-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
}

.path-node__marker {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: var(--fw-medium);
  color: var(--color-ink-muted);
  transition: all var(--duration-base) var(--ease-out);
}

.path-node__label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ink-muted);
  transition: color var(--duration-base) var(--ease-out);
}

.path-node:hover .path-node__marker,
.path-node.is-active .path-node__marker {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-surface);
  box-shadow: 0 0 0 6px var(--color-accent-soft);
}

.path-node:hover .path-node__label,
.path-node.is-active .path-node__label {
  color: var(--color-accent-hover);
}

/* ── Stage cards grid ─────────────────────────────────────────────────── */

.path-journey__stages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

@media (max-width: 1100px) {
  .path-journey__stages {
    grid-template-columns: repeat(2, 1fr);
  }
  .path-journey__nodes {
    grid-template-columns: repeat(4, auto);
    justify-content: space-between;
  }
}

@media (max-width: 600px) {
  .path-journey__stages {
    grid-template-columns: 1fr;
  }

  /* Drop the stage labels below the markers on very narrow phones — the
     markers + stage-card headings below already communicate the progression. */
  .path-node__label {
    font-size: 9px;
    letter-spacing: 0.03em;
  }
}

.path-stage {
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.path-stage::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.path-stage:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.path-stage:hover::before {
  opacity: 1;
}

.path-stage__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.path-stage__number {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent-hover);
}

.path-stage__name {
  font-family: var(--font-sans);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--color-ink);
  letter-spacing: var(--tracking-snug);
}

.path-stage__description {
  font-family: var(--font-serif);
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-muted);
  margin-bottom: var(--space-5);
}

.path-stage__articles {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-4);
  margin-top: auto;
  border-top: 1px dashed var(--color-line);
}

.path-stage__article {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--color-ink);
  text-decoration: none;
  padding-block: var(--space-1);
  transition: color var(--duration-fast) var(--ease-out),
              padding-left var(--duration-fast) var(--ease-out);
  display: block;
}

.path-stage__article::before {
  content: "→ ";
  color: var(--color-ink-subtle);
  font-family: var(--font-mono);
  font-size: 0.9em;
  margin-right: var(--space-1);
  transition: color var(--duration-fast) var(--ease-out);
}

.path-stage__article:hover {
  color: var(--color-accent-hover);
  padding-left: var(--space-2);
}

.path-stage__article:hover::before {
  color: var(--color-accent);
}