/* =============================================================
   ARTICLES PAGE — articles.css
   Page-specific styles. Uses tokens from style.css :root.
   ============================================================= */


/* =============================================================
   1. PAGE HEADER
   ============================================================= */
.articles-header {
  padding-block: clamp(3rem, 8vw, 5rem) var(--space-xl);
  text-align: center;
}

.articles-header h1 {
  margin-bottom: var(--space-md);
}

.articles-header .subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 52ch;
  margin-inline: auto;
  margin-bottom: 0;
}


/* =============================================================
   2. FILTER BAR
   ============================================================= */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  background-color: transparent;
  cursor: pointer;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.filter-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background-color: var(--accent-soft);
}

.filter-btn.active {
  color: var(--bg-primary);
  background-color: var(--accent);
  border-color: var(--accent);
}

.filter-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}


/* Filter bar scrolls horizontally on mobile instead of wrapping */
@media (max-width: 640px) {
  .filter-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-xs);
    /* hide scrollbar visually but keep it functional */
    scrollbar-width: none;
  }

  .filter-bar::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex-shrink: 0;
  }
}


/* =============================================================
   3. ARTICLE GRID
   ============================================================= */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 640px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* =============================================================
   4. ARTICLE CARD
   ============================================================= */
.article-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.article-card[hidden] {
  display: none;
}

/* Tag pill */
.article-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  line-height: 1;
}

.article-tag--testing {
  color: var(--accent);
  background-color: rgba(0, 212, 170, 0.12);
  border: 1px solid rgba(0, 212, 170, 0.3);
}

.article-tag--automation {
  color: #60a5fa;
  background-color: rgba(96, 165, 250, 0.10);
  border: 1px solid rgba(96, 165, 250, 0.28);
}

.article-tag--strategy {
  color: #c084fc;
  background-color: rgba(192, 132, 252, 0.10);
  border: 1px solid rgba(192, 132, 252, 0.28);
}

.article-tag--career {
  color: #fb923c;
  background-color: rgba(251, 146, 60, 0.10);
  border: 1px solid rgba(251, 146, 60, 0.28);
}

.article-tag--ai {
  color: #f472b6;
  background-color: rgba(244, 114, 182, 0.10);
  border: 1px solid rgba(244, 114, 182, 0.28);
}

.article-tag--tools {
  color: #34d399;
  background-color: rgba(52, 211, 153, 0.10);
  border: 1px solid rgba(52, 211, 153, 0.28);
}

/* Title */
.article-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.article-card__title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.article-card__title a:hover {
  color: var(--accent);
}

/* Excerpt */
.article-card__excerpt {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: none;
  margin: 0;
}

/* Footer row */
.article-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.article-card__date,
.article-card__read {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* CTA link */
.article-card__cta {
  display: inline-flex;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.article-card__cta:hover {
  color: var(--accent-hover);
}


/* =============================================================
   5. BOTTOM CTA
   ============================================================= */
.articles-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  padding: var(--space-xl);
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.articles-cta__text {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 48ch;
  margin: 0;
}

@media (min-width: 640px) {
  .articles-cta {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}