/* Home page layout (H01–H06). Owner: public-shell (PT-17); shared components live in
   public.css, palette/type only in tokens.css. */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-8);
  min-height: 560px;
  margin-top: var(--space-8);
  padding: var(--hero-pad);
  border-radius: var(--radius-hero);
  background: linear-gradient(135deg, var(--color-surface-blue) 0%, var(--color-surface-blue-end) 100%);
  overflow: hidden;
}

.hero__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  max-width: var(--hero-text-w);
}

.hero__title {
  font-size: var(--text-display);
  font-weight: var(--weight-semibold);
  line-height: var(--lh-display);
  letter-spacing: var(--ls-display);
  text-wrap: balance;
}

.hero__title--fallback {
  font-size: var(--text-article-h1);
  line-height: var(--lh-title);
  letter-spacing: var(--ls-title);
}

.hero__subtitle {
  max-width: 52ch;
  margin-top: var(--space-6);
  font-size: var(--text-hero-sub);
  font-weight: var(--weight-medium);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.hero__lead {
  max-width: 46ch;
  margin-top: var(--space-6);
  font-size: var(--text-body);
  line-height: 1.5;
  color: var(--color-ink-2);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--space-8);
}

.hero__media {
  align-self: center;
  width: 100%;
  border-radius: var(--radius-media);
}

.hero__media .media__img {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-media);
}

.hero__demo-note {
  margin-top: var(--space-8);
  font-size: var(--text-caption);
  color: var(--color-ink-3);
}

.hero--fallback {
  display: block;
  min-height: 0;
  padding: var(--space-16) var(--hero-pad);
}

.hero--fallback .hero__text {
  max-width: 760px;
}

.hero--preview {
  margin-top: 0;
  min-height: 0;
  padding: var(--space-10);
  border-radius: var(--radius-panel);
}

.hero--preview .hero__title {
  font-size: var(--text-article-h1);
}

/* H02 latest articles */

.latest__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.latest__grid[data-count="1"] {
  grid-template-columns: minmax(0, 424px);
}

.latest__grid[data-count="2"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* Coverless journal card: a deliberate text panel fills the grid cell (X4/V5). */

.article-card--text .article-card__link {
  display: block;
  height: 100%;
}

.article-card__text-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  min-height: 100%;
  padding: var(--card-pad);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.article-card__text-panel .article-card__meta {
  margin-bottom: 0;
}

.article-card__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  font-size: var(--text-meta);
  font-weight: var(--weight-medium);
  color: var(--color-ink-2);
}

.article-card--text .article-card__link:hover .article-card__title {
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (max-width: 767px) {
  .article-card__text-panel {
    padding: 20px;
  }
}

/* H03 featured projects: 648 + 312 + 312 with 24px gaps on a 1320 content width */

.featured__grid {
  display: grid;
  grid-template-columns: minmax(0, 648fr) minmax(0, 312fr) minmax(0, 312fr);
  gap: 24px;
  align-items: start;
}

.featured__grid[data-count="1"] {
  grid-template-columns: minmax(0, 648px);
}

.featured__grid[data-count="2"] {
  /* Two cards: keep the large/compact hierarchy without collapsing the compact card
     to a hairline column (648fr:1fr would starve it). */
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
}

/* H04 directions */

.directions__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

/* H05 tools band */

.tools-band {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
  align-items: center;
  padding: 24px 32px;
  border-radius: var(--radius-panel);
  background: var(--color-surface);
}

.tools-band__title {
  grid-column: span 3;
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  line-height: var(--lh-card);
}

.tools-band__list {
  grid-column: span 9;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.tools-band__row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  font-size: 16px;
  font-weight: var(--weight-medium);
  text-decoration: none;
}

.tools-band__row:hover .tools-band__row-title {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.tools-band__row-title {
  flex: none;
}

.tools-band__row-meta {
  flex: 1;
  font-size: var(--text-meta);
  font-weight: var(--weight-regular);
  color: var(--color-ink-2);
}

/* H06 publications */

.section--publications .bibliography-list {
  border-bottom: var(--border);
}

@media (max-width: 1199px) {
  .hero {
    min-height: 0;
  }

  .tools-band {
    grid-template-columns: 1fr;
    padding: 20px 24px;
  }

  .tools-band__title,
  .tools-band__list {
    grid-column: auto;
  }
}

@media (max-width: 1023px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero__media {
    order: 2;
  }

  .featured__grid,
  .featured__grid[data-count="2"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .featured__grid .project-card--large {
    grid-column: 1 / -1;
  }

  .latest__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .directions__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .hero {
    padding: var(--hero-pad);
    border-radius: var(--radius-hero);
  }

  .hero__title {
    font-size: var(--text-display);
  }

  .hero__actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .button {
    width: 100%;
  }

  .hero__media .media__img {
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-media);
  }

  .latest__grid,
  .latest__grid[data-count="1"],
  .latest__grid[data-count="2"],
  .featured__grid,
  .featured__grid[data-count="1"],
  .featured__grid[data-count="2"],
  .directions__grid {
    grid-template-columns: 1fr;
  }

  .featured__grid .project-card--large {
    grid-column: auto;
  }

  .tools-band__list {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .section-header {
    margin-bottom: var(--space-6);
  }
}