/**
 * ITS Blog Manager — Card Grid CSS
 *
 * Stili per il sistema griglia e le card articolo.
 * File caricato anche dallo shortcode [its_blog_grid] in modo indipendente.
 * Zero font-family — ereditato dal tema Bridge.
 *
 * @package its-blog-manager
 */

/* ═══════════════════════════════════════════
   DESIGN TOKENS (ripetuti per uso standalone)
   ═══════════════════════════════════════════ */

:root {
  --ibm-primary: #1a1a2e;
  --ibm-accent: #e94560;
  --ibm-accent-soft: #f8e8ec;
  --ibm-text: #2d2d2d;
  --ibm-text-light: #6c6c6c;
  --ibm-bg: #ffffff;
  --ibm-bg-alt: #f7f7f8;
  --ibm-card-radius: 12px;
  --ibm-card-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
  --ibm-header-offset: 100px;
}

/* ═══════════════════════════════════════════
   GRID SYSTEM
   ═══════════════════════════════════════════ */

.ibm-grid {
  display: grid;
  grid-template-columns: repeat(var(--ibm-cols, 3), 1fr);
  gap: 24px;
  width: 100%;
  align-items: stretch;
}

/* Hero card: larga 2 colonne, alta quanto il contenuto */
.ibm-grid .ibm-card--hero {
  grid-column: span 2;
  grid-row: span 1;
}

@media (max-width: 1024px) {
  .ibm-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .ibm-grid .ibm-card--hero {
    grid-column: span 2;
    grid-row: span 1;
  }
}

@media (max-width: 600px) {
  .ibm-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .ibm-grid .ibm-card--hero {
    grid-column: span 1;
    grid-row: span 1;
  }
}

/* ═══════════════════════════════════════════
   CARD BASE
   ═══════════════════════════════════════════ */

.ibm-card {
  background: var(--ibm-bg);
  border-radius: var(--ibm-card-radius);
  box-shadow: var(--ibm-card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.ibm-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

/* ═══════════════════════════════════════════
   CARD IMAGE
   ═══════════════════════════════════════════ */

.ibm-card__image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--ibm-bg-alt);
}

.ibm-card--hero .ibm-card__image {
  aspect-ratio: auto;
  min-height: 280px;
  flex: 1;
}

.ibm-card__image a {
  display: block;
  width: 100%;
  height: 100%;
}

.ibm-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.ibm-card:hover .ibm-card__image img {
  transform: scale(1.04);
}

.ibm-card__placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--ibm-bg-alt) 0%, #e8e8ea 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ibm-card__placeholder::after {
  content: '📝';
  font-size: 2rem;
  opacity: 0.4;
}

/* ═══════════════════════════════════════════
   BADGE (Categoria)
   ═══════════════════════════════════════════ */

.ibm-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--ibm-accent);
  color: #fff;
  backdrop-filter: blur(8px);
  z-index: 2;
  pointer-events: none;
}

/* Colori per categorie pre-definite */
.ibm-badge-news-eventi       { background: #3b82f6; }
.ibm-badge-trend-stile       { background: #ec4899; }
.ibm-badge-mestieri-moda     { background: #8b5cf6; }
.ibm-badge-dietro-le-quinte  { background: #f59e0b; }
.ibm-badge-formazione        { background: #10b981; }
.ibm-badge-alumni-storie     { background: #06b6d4; }

/* ═══════════════════════════════════════════
   CARD CONTENT
   ═══════════════════════════════════════════ */

.ibm-card__content {
  padding: 25px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: flex-start;
  gap: 8px;
}

.ibm-card--hero .ibm-card__content {
  padding: 28px 28px 30px;
}

.ibm-card__keyword {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ibm-accent);
  opacity: 0.85;
}

.ibm-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 0;
  color: var(--ibm-primary);
}

.ibm-card--hero .ibm-card__title {
  font-size: 1.5rem;
  line-height: 1.3;
}

.ibm-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.ibm-card__excerpt {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--ibm-text-light);
  flex-grow: 1;
}

.ibm-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.ibm-card__date {
  font-size: 0.75rem;
  color: var(--ibm-text-light);
  opacity: 0.7;
}

.ibm-card__btn {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ibm-accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

.ibm-card__btn:hover {
  opacity: 0.7;
}

/* ═══════════════════════════════════════════
   RESULTS HEADINGS
   ═══════════════════════════════════════════ */

.ibm-results__heading {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ibm-text-light);
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ibm-accent);
  display: inline-block;
}

.ibm-results__term {
  color: var(--ibm-accent);
}

.ibm-results--empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--ibm-text-light);
  font-size: 1.1rem;
}

/* ═══════════════════════════════════════════
   LOAD MORE
   ═══════════════════════════════════════════ */

.ibm-load-more-wrap {
  text-align: center;
  padding: 40px 0;
}

.ibm-load-more-btn {
  background: var(--ibm-primary);
  color: #fff;
  border: none;
  padding: 14px 40px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.ibm-load-more-btn:hover {
  background: var(--ibm-accent);
  transform: translateY(-2px);
}

.ibm-load-more-btn.is-loading {
  opacity: 0.6;
  pointer-events: none;
}

/* ═══════════════════════════════════════════
   HERO: VISTA BENTO — Super Card con overlay
   ═══════════════════════════════════════════ */

[data-layout="layout-bento"] .ibm-card--hero {
  grid-column: span 2;
  grid-row: span 1 !important;
  border-radius: var(--ibm-card-radius);
  overflow: hidden;
  position: relative;
  min-height: 100% !important;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__image {
  position: absolute;
  inset: 0;
  aspect-ratio: auto;
  min-height: 100%;
  z-index: 0;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

[data-layout="layout-bento"] .ibm-card--hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 40%, transparent 100%) !important;
  z-index: 1;
  pointer-events: none;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  padding: 40px !important;
  width: 100%;
  box-sizing: border-box;
  background: transparent;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__title,
[data-layout="layout-bento"] .ibm-card--hero .ibm-card__title a {
  color: #fff !important;
  font-size: 1.6rem;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__excerpt {
  color: rgba(255,255,255,0.85) !important;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__keyword {
  color: rgba(255,255,255,0.7) !important;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__date {
  color: rgba(255,255,255,0.6) !important;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-card__btn {
  color: #fff !important;
}

[data-layout="layout-bento"] .ibm-card--hero .ibm-badge {
  background: var(--ibm-accent) !important;
  color: #fff !important;
}

/* Bento hero responsive */
@media (max-width: 1024px) {
  [data-layout="layout-bento"] .ibm-card--hero {
    grid-column: span 2;
    grid-row: span 1;
    min-height: 300px;
  }
}
@media (max-width: 768px) {
  [data-layout="layout-bento"] .ibm-card--hero {
    grid-column: 1 / -1;
    grid-row: span 1;
    min-height: 280px;
  }
}

/* ═══════════════════════════════════════════
   HERO: VISTA FOCUS — Layout editoriale digest
   ═══════════════════════════════════════════ */

[data-layout="layout-focus"] .ibm-card--hero {
  grid-column: 1 / -1;
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch !important;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0;
  margin-bottom: 40px;
  overflow: visible;
}

[data-layout="layout-focus"] .ibm-card--hero:hover {
  transform: none;
  box-shadow: none !important;
}

/* Immagine — colonna sinistra */
[data-layout="layout-focus"] .ibm-card--hero .ibm-card__image {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  min-height: auto;
  position: relative;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

/* Badge: staccalo dall'immagine e rendilo visibile sopra il contenuto */
[data-layout="layout-focus"] .ibm-card--hero .ibm-badge {
  position: static !important;
  display: inline-block;
  pointer-events: auto;
}

/* Contenuto — colonna destra (Sprint 55 fix: centratura gruppo coesivo) */
[data-layout="layout-focus"] .ibm-card.ibm-card--hero .ibm-card__content {
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  height: 100% !important;
  min-height: 0 !important;
  padding: 10px 30px 10px 0 !important;
  position: relative !important;
  inset: auto !important;
  background: transparent !important;
  align-self: stretch !important;
}

/* Keyword accanto al badge */
[data-layout="layout-focus"] .ibm-card--hero .ibm-card__keyword {
  color: var(--ibm-accent) !important;
  opacity: 1;
  margin: 0 !important;
  line-height: 1;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__title {
  margin-bottom: 20px !important;
  line-height: 1.2 !important;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__title,
[data-layout="layout-focus"] .ibm-card--hero .ibm-card__title a {
  color: var(--ibm-primary, #1a1a2e) !important;
  font-size: 1.8rem;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__title a:hover {
  color: var(--ibm-accent) !important;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__excerpt {
  color: var(--ibm-text, #2d2d2d) !important;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 0 !important;
  flex-grow: 0 !important;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__footer {
  margin-top: 60px !important;
  padding-top: 12px !important;
  width: 100% !important;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__date {
  color: #64748b !important;
}

[data-layout="layout-focus"] .ibm-card--hero .ibm-card__btn {
  color: var(--ibm-accent) !important;
  font-weight: 700;
}

/* Focus hero responsive */
@media (max-width: 768px) {
  [data-layout="layout-focus"] .ibm-card--hero {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 24px;
  }

  [data-layout="layout-focus"] .ibm-card--hero .ibm-card__title,
  [data-layout="layout-focus"] .ibm-card--hero .ibm-card__title a {
    font-size: 1.4rem;
  }
}