/* ==========================================================================
   ARTICOLO (single.php)
   (prototipo: style.css righe 579-619, 631, 896-902)
   ========================================================================== */

.sb-page--article { background: var(--sb-paper); }
.sb-page--article .sb-header.is-scrolled { background: color-mix(in srgb, var(--sb-space-0) 95%, transparent); }

/* Barra di lettura: article.js ne aggiorna --read */
.sb-progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 60; }
.sb-progress span { display: block; height: 100%; width: 100%; background: var(--sb-gold-lt); transform-origin: 0 50%; transform: scaleX(var(--read, 0)); }

/* Testata */
.sb-article__head { padding-top: clamp(140px, 14vw, 190px); background: linear-gradient(var(--sb-space-1) 0, var(--sb-sea-3) 72%, var(--sb-paper) 72%); }
.sb-article__head--no-figure { padding-bottom: var(--sb-pad-m); background: linear-gradient(var(--sb-space-1) 0, var(--sb-sea-3)); }
.sb-article__headwrap { max-width: 1040px; }
.sb-article__title { font-size: clamp(2.2rem, 5vw, 4.4rem); font-weight: 600; font-variation-settings: "wdth" 125; line-height: 1.02; letter-spacing: -.035em; text-wrap: balance; }
.sb-article__standfirst { margin-top: 24px; font-family: var(--sb-serif); font-size: clamp(1.25rem, 2vw, 1.6rem); line-height: 1.4; font-weight: 400; color: var(--sb-text-soft); max-width: 44ch; }
.sb-article__meta { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 28px; font-size: .92rem; color: var(--sb-muted); }
.sb-article__meta time { color: var(--sb-text); }
.sb-article__figure { margin-top: var(--sb-pad-m); max-width: 1180px; }
.sb-article__figure img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 4px; box-shadow: 0 30px 60px -30px color-mix(in srgb, var(--sb-space-0) 60%, transparent); }
.sb-article__figure figcaption { margin-top: 12px; font-size: .85rem; color: var(--sb-ink-muted); }

/* Corpo: colonna laterale (indice e condivisione) + testo */
.sb-article__layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: var(--sb-gap-l); max-width: 1180px; padding-top: clamp(48px, 6vw, 80px); padding-bottom: var(--sb-pad-m); color: var(--sb-ink); }
.sb-article__aside { align-self: start; position: sticky; top: 110px; font-size: .92rem;
  /* Con indice, categorie e articoli recenti la colonna può superare lo schermo: scorre da sola */
  max-height: calc(100vh - 130px); overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; scrollbar-color: var(--sb-ink-line) transparent; }
.sb-article__aside h2 { font-size: .95rem; font-weight: 600; font-variation-settings: "wdth" 100; margin-bottom: 14px; }

.sb-toc ol, .sb-cats ul, .sb-recent ul { list-style: none; padding: 0; margin: 0; }
.sb-toc li, .sb-cats li, .sb-recent li { border-top: 1px solid var(--sb-ink-line); }

/* Indice e categorie: stessa voce con il pallino; quella attiva (sezione letta, categoria dell'articolo) ha il pallino oro */
.sb-toc a, .sb-cats a { position: relative; display: block; padding: 11px 0 11px 18px; text-decoration: none; color: var(--sb-ink-muted); line-height: 1.35; transition: color .2s; }
.sb-toc a::before, .sb-cats a::before { content: ""; position: absolute; left: 0; top: 17px; width: 7px; height: 7px; border-radius: 50%; border: 1px solid currentColor; transition: background-color .2s, border-color .2s; }
.sb-toc a:hover, .sb-cats a:hover { color: var(--sb-ink); }
.sb-toc a.is-active, .sb-cats a.is-current { color: var(--sb-ink); font-weight: 600; }
.sb-toc a.is-active::before, .sb-cats a.is-current::before { background: var(--sb-gold); border-color: var(--sb-gold); }

/* Articoli recenti: titolo e data, senza pallino */
.sb-recent { margin-top: 40px; }
.sb-recent a { display: grid; gap: 3px; padding: 12px 0; text-decoration: none; color: var(--sb-ink-muted); line-height: 1.35; transition: color .2s; }
.sb-recent a:hover { color: var(--sb-ink); }
.sb-recent__title { color: var(--sb-ink); font-weight: 500; }
.sb-recent a:hover .sb-recent__title { color: var(--sb-gold-dk); }
.sb-recent time { font-size: .82rem; }

/* Testo dell'articolo */
.sb-prose { overflow-wrap: anywhere; max-width: 68ch; font-family: var(--sb-serif); font-size: clamp(1.15rem, 1.35vw, 1.28rem); line-height: 1.7; font-weight: 400; }
.sb-prose h2[id] { scroll-margin-top: 110px; }
.sb-prose > p:first-child { font-size: 1.15em; line-height: 1.6; }
.sb-prose > p:first-child::first-letter { float: left; font-family: var(--sb-sans); font-variation-settings: "wdth" 125; font-weight: 600; font-size: 3.6em; line-height: .82; margin: .08em .1em 0 0; color: var(--sb-ink); }
.sb-prose p + p { margin-top: 1.1em; }
.sb-prose h2 { margin-top: 2.2em; margin-bottom: .7em; font-family: var(--sb-sans); font-size: clamp(1.35rem, 1.9vw, 1.7rem); font-weight: 600; font-variation-settings: "wdth" 100; line-height: 1.2; letter-spacing: -.015em; color: var(--sb-ink); }
.sb-prose h3 { margin-top: 1.8em; margin-bottom: .6em; font-family: var(--sb-sans); font-size: 1.2rem; font-weight: 600; font-variation-settings: "wdth" 100; color: var(--sb-ink); }
.sb-prose strong { font-weight: 500; color: var(--sb-ink); }
.sb-prose a { color: var(--sb-ink); text-decoration-color: var(--sb-gold); text-underline-offset: .2em; }
.sb-prose a:hover { color: var(--sb-gold-dk); }
.sb-prose ul, .sb-prose ol { margin: 1.1em 0; padding-left: 1.25em; list-style: disc; }
.sb-prose ol { list-style: decimal; }
.sb-prose li + li { margin-top: .4em; }
.sb-prose figure { margin: 2em 0; }
.sb-prose img { max-width: 100%; height: auto; border-radius: 3px; }
.sb-prose figcaption { margin-top: 10px; font-family: var(--sb-sans); font-size: .85rem; color: var(--sb-ink-muted); }
.sb-prose blockquote { margin: 2.2em 0; padding: 8px 0 8px clamp(20px, 3vw, 36px); border-left: 3px solid var(--sb-gold); }
.sb-prose blockquote p { font-size: clamp(1.4rem, 2.2vw, 1.85rem); line-height: 1.35; font-style: italic; color: var(--sb-ink); }
.sb-prose blockquote cite { display: block; margin-top: 14px; font-family: var(--sb-sans); font-size: .9rem; font-style: normal; color: var(--sb-ink-muted); }
.sb-prose__source { margin-top: 2.4em !important; padding-top: 16px; border-top: 1px solid var(--sb-ink-line); font-family: var(--sb-sans); font-size: .88rem; color: var(--sb-ink-muted); }

/* Navigazione tra gli articoli (in fondo, sul fondo chiaro) */
.sb-article__nav { max-width: 1180px; padding-bottom: clamp(64px, 8vw, 112px); color: var(--sb-ink); }
.sb-post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 64px); padding-top: 32px; border-top: 1px solid var(--sb-ink-line); }
.sb-post-nav a { display: grid; gap: 8px; align-content: start; text-decoration: none; color: var(--sb-ink); }
.sb-post-nav__next { grid-column: 2; text-align: right; }
.sb-post-nav__label { font-size: .88rem; font-weight: 600; color: var(--sb-gold-dk); }
.sb-post-nav__prev .sb-post-nav__label::before { content: "← "; }
.sb-post-nav__next .sb-post-nav__label::after { content: " →"; }
.sb-post-nav__title { font-size: clamp(1.1rem, 1.6vw, 1.4rem); font-weight: 600; font-variation-settings: "wdth" 100; line-height: 1.25; text-wrap: balance; transition: color .2s; }
.sb-post-nav a:hover .sb-post-nav__title, .sb-post-nav a:focus-visible .sb-post-nav__title { color: var(--sb-gold-dk); }

/* Continua a leggere */
.sb-related { padding-block: clamp(80px, 9vw, 128px); background: linear-gradient(var(--sb-sea-3), var(--sb-abyss)); }
/* Le riviste in fondo proseguono la discesa dagli articoli correlati, senza gradino */
.sb-page--article .sb-print { background: linear-gradient(var(--sb-abyss), var(--sb-abyss-0)); }

@media (max-width: 860px) {
  .sb-post-nav { grid-template-columns: 1fr; }
  .sb-post-nav__next { grid-column: 1; text-align: left; }
}
@media (max-width: 1080px) {
  .sb-article__layout { grid-template-columns: minmax(0, 1fr); }
  .sb-article__aside { position: static; order: 2; max-width: 68ch; max-height: none; overflow: visible; }
}