/* ========================================
   CBK Learning — Ideas Pages
   ======================================== */

/* ---- Ideas Index Hero ---- */

.ideas-hero {
  padding: 8rem 2rem 3rem;
  text-align: center;
  background: var(--color-surface);
}

.ideas-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.ideas-hero__intro {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- Article Card Grid ---- */

.ideas-grid {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.ideas-grid__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

.idea-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.5s var(--ease-out-expo),
              border-color 0.4s ease,
              box-shadow 0.4s ease;
}

.idea-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent-ai);
  box-shadow: 0 4px 24px var(--color-accent-ai-glow),
              0 0 0 1px var(--color-accent-ai);
}

.idea-card__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  width: fit-content;
}

.idea-card__tag--ai {
  background: var(--color-accent-ai-light);
  color: var(--color-accent-ai);
}

.idea-card__tag--learn {
  background: var(--color-accent-learn-light);
  color: var(--color-accent-learn);
}

.idea-card:has(.idea-card__tag--learn):hover {
  border-color: var(--color-accent-learn);
  box-shadow: 0 4px 24px var(--color-accent-learn-glow),
              0 0 0 1px var(--color-accent-learn);
}

.idea-card__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.idea-card__excerpt {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.idea-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.88rem;
  margin-top: auto;
  padding-top: 0.5rem;
  color: var(--color-accent-ai);
  transition: gap 0.3s var(--ease-out-expo);
}

.idea-card:has(.idea-card__tag--learn) .idea-card__link {
  color: var(--color-accent-learn);
}

.idea-card:hover .idea-card__link {
  gap: 0.7rem;
}

/* ========================================
   Article Page
   ======================================== */

.article-hero {
  padding: 8rem 2rem 2rem;
  text-align: center;
  background: var(--color-surface);
}

.article-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  max-width: 700px;
  margin: 0 auto 1rem;
  line-height: 1.2;
}

.article-hero__intro {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.75;
}

/* ---- Hero image ---- */

.article-hero__image {
  max-width: 700px;
  margin: 2rem auto 0;
}

.article-hero__image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}

.article-hero__image figcaption {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ---- Article hero tag ---- */

.article-hero__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.article-hero__tag--ai {
  background: var(--color-accent-ai-light);
  color: var(--color-accent-ai);
}

.article-hero__tag--learn {
  background: var(--color-accent-learn-light);
  color: var(--color-accent-learn);
}

/* ---- Article image row ---- */

.article__image-row {
  max-width: 900px;
  margin: 2rem auto 0;
}

.article__image-row-images {
  display: flex;
  gap: 0.75rem;
}

.article__image-row-images img {
  flex: 1;
  min-width: 0;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  aspect-ratio: 1 / 1;
}

.article__image-row figcaption {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
  font-style: italic;
}

/* ---- Article body ---- */

.article {
  max-width: 700px;
  margin: 0 auto;
  padding: 2.5rem 2rem 4rem;
}

.article h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.article p {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.article ul {
  margin: 0.5rem 0 1.25rem 1.25rem;
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.8;
}

.article ul li {
  margin-bottom: 0.35rem;
}

.article strong {
  font-weight: 600;
}

/* ---- Article CTA ---- */

.article-cta {
  max-width: 700px;
  margin: 0 auto 3rem;
  padding: 2rem 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  text-align: center;
}

.article-cta__text {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.article-cta__button {
  display: inline-block;
  background: var(--color-text);
  color: var(--color-bg);
  padding: 0.65rem 1.75rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 0.3s var(--ease-out-expo), opacity 0.3s ease;
}

.article-cta__button:hover {
  transform: scale(1.05);
  opacity: 0.85;
}

/* ---- Back link ---- */

.article-back {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 2rem 1rem;
}

.article-back a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s ease, gap 0.3s var(--ease-out-expo);
}

.article-back a:hover {
  color: var(--color-text);
  gap: 0.6rem;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
  .ideas-hero {
    padding: 7rem 1.5rem 2.5rem;
  }

  .ideas-grid {
    padding: 2rem 1.25rem 4rem;
  }

  .ideas-grid__list {
    grid-template-columns: 1fr;
  }

  .article-hero {
    padding: 7rem 1.5rem 1.5rem;
  }

  .article {
    padding: 2rem 1.25rem 3rem;
  }

  .article-cta {
    margin-left: 1.25rem;
    margin-right: 1.25rem;
  }

  .article-back {
    padding: 0 1.25rem 1rem;
  }

  .article__image-row {
    padding: 0 1rem;
  }

  .article__image-row-images {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .article__image-row-images img {
    flex: 1 1 calc(33.333% - 0.5rem);
    min-width: calc(33.333% - 0.5rem);
  }
}