/* ============================================================
   articolo.css — template articolo singolo
   ============================================================ */

/* BREADCRUMB + PROGRESS */
.breadcrumb {
  padding: 14px var(--padding-x);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-light);
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--gray-light); text-decoration: none; transition: color var(--transition); }
.breadcrumb a:hover { color: var(--black); }
.breadcrumb__sep { color: var(--border); }
.breadcrumb__current { color: var(--black); }

.breadcrumb__progress {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb__progress-label {
  font-size: 0.6rem;
  color: var(--border);
}

.progress-track {
  width: 72px;
  height: 2px;
  background: var(--border);
  position: relative;
}

.progress-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--red);
  width: 0%;
  transition: width 0.1s linear;
}

/* HERO ARTICOLO */
.art-hero {
  padding: 52px var(--padding-x) 0;
  border-bottom: 1.5px solid var(--black);
}

.art-hero__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.art-hero__tags { display: flex; gap: 8px; flex-wrap: wrap; }

.art-tag {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 5px 12px;
  border: 1.5px solid var(--red);
  color: var(--red);
  display: inline-block;
}

.art-tag--neutral {
  border-color: var(--border);
  color: var(--gray);
}

.art-hero__reading {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-light);
}

.art-hero__title {
  font-family: var(--font-hero);
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.92;
  letter-spacing: 0.01em;
  color: var(--black);
  margin-bottom: 32px;
  max-width: 800px;
}

.art-hero__title span { color: var(--red); }

.art-hero__meta {
  display: flex;
  gap: 28px;
  align-items: center;
  padding: 18px 0;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.art-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.art-hero__meta-label {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-light);
}

.art-hero__meta-val {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--black);
}

.art-hero__meta-sep {
  width: 1px;
  height: 28px;
  background: var(--border);
}

.art-hero__cover {
  width: 100%;
  aspect-ratio: 21 / 9;
  background: var(--black-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(242,242,240,0.15);
  margin-top: 28px;
  overflow: hidden;
}

.art-hero__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* LAYOUT 3 COLONNE */
.art-layout {
  display: grid;
  grid-template-columns: 200px 1fr 200px;
  border-bottom: 1.5px solid var(--black);
}

/* Sidebar sinistra */
.art-sidebar-left {
  padding: 40px 20px;
  border-right: 1.5px solid var(--black);
}

.art-sidebar-left__inner {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.toc__label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-light);
  margin-bottom: 8px;
  display: block;
}

.toc__item {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-light);
  padding: 4px 0 4px 10px;
  border-left: 2px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  display: block;
  text-decoration: none;
  line-height: 1.45;
}

.toc__item:hover { color: var(--black); }
.toc__item.active { color: var(--black); border-left-color: var(--red); }

.share__label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-light);
  margin-bottom: 8px;
  display: block;
}

.share__btns {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.share__btn {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--gray);
  padding: 6px 10px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  background: var(--white);
}

.share__btn:hover { border-color: var(--black); color: var(--black); }

/* Contenuto centrale */
.art-content {
  padding: 48px 56px;
  max-width: 720px;
}

.art-lead {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--black);
  line-height: 1.75;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.art-h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--black);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 14px;
  margin-top: 36px;
  scroll-margin-top: calc(var(--nav-height) + 20px);
}

.art-h2::before {
  content: '';
  display: block;
  width: 20px;
  height: 3px;
  background: var(--red);
  margin-bottom: 8px;
}

.art-p {
  font-size: 0.95rem;
  color: var(--gray);
  line-height: 1.85;
  margin-bottom: 16px;
  max-width: 620px;
}

.art-pullquote {
  border-left: 3px solid var(--red);
  padding: 16px 22px;
  margin: 28px 0;
  background: rgba(244,64,64,0.04);
}

.art-pullquote p {
  font-size: 1rem;
  font-weight: 700;
  color: var(--black);
  line-height: 1.6;
  font-style: italic;
  letter-spacing: -0.01em;
}

.art-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--black-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242,242,240,0.18);
  margin: 28px 0 8px;
  overflow: hidden;
}

.art-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.art-img-caption {
  font-size: 0.72rem;
  color: var(--gray-light);
  text-align: center;
  margin-bottom: 24px;
  font-style: italic;
}

.art-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.art-list li {
  font-size: 0.92rem;
  color: var(--gray);
  line-height: 1.65;
  padding-left: 20px;
  position: relative;
}

.art-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 700;
}

.art-callout {
  background: var(--black);
  padding: 22px 26px;
  margin: 28px 0;
}

.art-callout p {
  font-size: 0.88rem;
  color: var(--white);
  line-height: 1.75;
}

.art-callout strong { color: var(--red); }

/* Sidebar destra */
.art-sidebar-right {
  padding: 40px 20px;
  border-left: 1.5px solid var(--black);
}

.art-sidebar-right__inner {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.author-box {
  border: 1px solid var(--border);
  padding: 18px;
}

.author-box__photo {
  width: 44px;
  height: 44px;
  background: var(--black-soft);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: rgba(242,242,240,0.2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  overflow: hidden;
}

.author-box__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

.author-box__name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 3px;
}

.author-box__role {
  font-size: 0.68rem;
  color: var(--gray-light);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.author-box__bio {
  font-size: 0.75rem;
  color: var(--gray);
  line-height: 1.65;
}

.related__label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-light);
  margin-bottom: 10px;
  display: block;
}

.related__item {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  display: block;
  transition: opacity var(--transition);
}

.related__item:last-child { border-bottom: none; }
.related__item:hover { opacity: 0.7; }

.related__tag {
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: 3px;
}

.related__title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--black);
  line-height: 1.4;
}

/* FINE ARTICOLO */
.art-end {
  padding: 28px var(--padding-x);
  border-top: 1px solid var(--border);
  border-bottom: 1.5px solid var(--black);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.art-end__tags { display: flex; gap: 8px; flex-wrap: wrap; }

.art-end__tag {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--border);
  color: var(--gray);
}

.art-end__share {
  display: flex;
  gap: 10px;
  align-items: center;
}

.art-end__share-label {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-light);
}

.share-icon {
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  background: var(--white);
}

.share-icon:hover { border-color: var(--black); color: var(--black); }

/* CORRELATI */
.correlati {
  padding: 52px var(--padding-x);
  border-bottom: 1.5px solid var(--black);
}

.correlati__title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--black);
  margin-top: 8px;
  margin-bottom: 28px;
}

.correlati__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1.5px solid var(--black);
}

.correlati__card {
  background: var(--white);
  text-decoration: none;
  color: inherit;
  display: block;
  transition: background var(--transition);
}

.correlati__card:hover { background: #efefed; }

.correlati__img {
  aspect-ratio: 16 / 9;
  background: var(--black-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242,242,240,0.15);
}

.correlati__body { padding: 14px 16px 18px; }

.correlati__tag {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: 5px;
}

.correlati__title-card {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--black);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.correlati__time {
  font-size: 0.62rem;
  color: var(--gray-light);
  margin-top: 6px;
  display: block;
}

/* NAV ARTICOLI */
.art-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--black);
  border-bottom: 1.5px solid var(--black);
}

.art-nav__item {
  background: var(--white);
  padding: 26px var(--padding-x);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background var(--transition);
}

.art-nav__item:hover { background: #efefed; }
.art-nav__item--next { align-items: flex-end; text-align: right; }

.art-nav__dir {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-light);
}

.art-nav__title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.01em;
  line-height: 1.3;
  max-width: 360px;
}

/* CTA BOTTOM */
.bottom-cta {
  padding: 64px var(--padding-x);
  border-bottom: 1.5px solid var(--black);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
}

.bottom-cta__text {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--black);
}

.bottom-cta__text span { color: var(--red); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .art-layout { grid-template-columns: 1fr; }
  .art-sidebar-left, .art-sidebar-right { display: none; }
  .art-content { padding: 36px var(--padding-x); max-width: 100%; }
  .correlati__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .art-hero { padding: 36px var(--padding-x-mobile) 0; }
  .art-content { padding: 32px var(--padding-x-mobile); }
  .breadcrumb { padding: 12px var(--padding-x-mobile); }
  .art-end { padding: 20px var(--padding-x-mobile); }
  .correlati { padding: 40px var(--padding-x-mobile); }
  .correlati__grid { grid-template-columns: 1fr; }
  .art-nav__item { padding: 20px var(--padding-x-mobile); }
  .bottom-cta {
    padding: 48px var(--padding-x-mobile);
    flex-direction: column;
    align-items: flex-start;
  }
}