/*
Theme Name: Marco Rapella
Theme URI: https://marcorapella.com
Author: Marco Rapella
Author URI: https://marcorapella.com
Description: Tema WordPress minimalista per il blog di Ing. Marco Rapella Zanier — Facility Management, Asset Management, Energy Management e Sistemi Informativi. Massima velocità (niente framework, niente librerie JS esterne), estetica pulita ispirata ai blog tecnici "terminale", con toggle light/dark persistente.
Version: 1.3.1
Requires at least: 6.3
Requires PHP: 7.4
Tested up to: 6.7
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: marco-rapella
Tags: blog, minimal, one-column, two-columns, custom-colors, dark-theme, translation-ready
*/

/* ==========================================================================
   1. RESET & BASE
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
}

::selection {
  background: #e8b088;
}

@supports ( color: oklch(0.5 0.11 55) ) {
  ::selection {
    background: oklch(0.78 0.09 55);
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   2. DESIGN TOKENS (colori) — light di default, dark via [data-theme="dark"]
   ========================================================================== */

:root {
  /* Fallback hex/rgb: usati da browser (spesso mobile meno recenti) che non
     supportano ancora la funzione colore oklch(). Se una dichiarazione usa
     un colore non supportato, il browser la scarta interamente: senza
     questo fallback l'intero blocco di stile risulterebbe "vuoto" su quei
     dispositivi. I valori oklch() sotto sovrascrivono questi solo se
     supportati (vedi @supports più sotto). */
  --bg: #fbfaf8;
  --bg-alt: #f5f3f0;
  --fg: #23262f;
  --fg-muted: #6b7280;
  --border: #ddd9d1;
  --accent: #b1592b;
  --accent-fg: #fdfcfa;
  --card-bg: #ffffff;

  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-sans: 'Public Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="dark"] {
  --bg: #1c1e26;
  --bg-alt: #23262f;
  --fg: #e9eaee;
  --fg-muted: #a7abb5;
  --border: #383c47;
  --accent: #d98a4f;
  --accent-fg: #1a1c22;
  --card-bg: #21242c;
}

/* Colori di precisione (oklch), applicati solo dove supportati. */
@supports ( color: oklch(0.5 0.11 55) ) {
  :root {
    --bg: oklch(0.985 0.003 80);
    --bg-alt: oklch(0.97 0.004 80);
    --fg: oklch(0.22 0.008 260);
    --fg-muted: oklch(0.48 0.01 260);
    --border: oklch(0.88 0.006 80);
    --accent: oklch(0.5 0.11 55);
    --accent-fg: oklch(0.99 0.003 80);
    --card-bg: oklch(1 0 0);
  }

  [data-theme="dark"] {
    --bg: oklch(0.19 0.008 260);
    --bg-alt: oklch(0.23 0.01 260);
    --fg: oklch(0.93 0.006 260);
    --fg-muted: oklch(0.68 0.01 260);
    --border: oklch(0.32 0.01 260);
    --accent: oklch(0.72 0.11 55);
    --accent-fg: oklch(0.15 0.01 260);
    --card-bg: oklch(0.22 0.009 260);
  }
}

/* ==========================================================================
   3. PAGE / TYPOGRAPHY BASE
   ========================================================================== */

html {
  height: 100%;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  transition: background 0.2s, color 0.2s;
}

/* Qualunque <main> di pagina si espande per riempire lo spazio disponibile,
   così il footer resta sempre ancorato in fondo alla viewport anche quando
   il contenuto della pagina è corto (es. la cover page, una categoria vuota). */
body > main {
  flex: 1 0 auto;
  width: 100%;
}

.site-header,
.site-footer {
  flex-shrink: 0;
}

a {
  text-decoration: none;
  color: var(--accent);
}

a:hover {
  color: var(--fg);
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   4. HEADER
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
  transition: background 0.2s, border-color 0.2s;
}

.site-header__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--fg);
  white-space: nowrap;
}

.site-logo__accent {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.site-nav__menu {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__menu li {
  margin: 0;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted);
  letter-spacing: 0.01em;
}

.site-nav a:hover,
.site-nav a.is-active,
.site-nav .current-menu-item > a,
.site-nav .current_page_item > a,
.site-nav .current-menu-ancestor > a,
.site-nav .current-menu-parent > a {
  color: var(--accent);
}

.theme-toggle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 6px 10px;
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--fg);
}

/* ==========================================================================
   4-bis. COVER PAGE (front-page.php) — home con sfondo fotografico
   ========================================================================== */

.cover {
  position: relative;
  width: 100% !important;
  min-height: 80vh;
  min-height: 80dvh;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 48px 24px;
  text-align: center !important;
  margin: 0 auto;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

/* Overlay per garantire leggibilità del testo sopra la foto, in entrambi i temi. */
.cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.82);
  transition: background 0.2s;
}

[data-theme="dark"] .cover::before {
  background: rgba(12, 12, 16, 0.72);
}

.cover__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cover__motto {
  font-family: var(--font-serif);
  font-size: 44px;
  line-height: 1.25;
  font-weight: 600;
  color: var(--fg);
  margin: 0 auto 16px !important;
  max-width: 720px;
  text-align: center !important;
}

.cover__subtitle {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.5;
  color: var(--fg-muted);
  margin: 0 auto 28px;
  max-width: 560px;
  text-align: center;
}

.cover__cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 12px 28px;
  margin-top: 12px;
  transition: background 0.2s, color 0.2s;
}

.cover__cta:hover {
  background: var(--accent);
  color: var(--accent-fg);
}

/* ==========================================================================
   5. LAYOUT WRAPPERS
   ========================================================================== */

.main-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 24px 100px;
}

.hero {
  max-width: 720px;
  margin-bottom: 56px;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: 40px;
  line-height: 1.15;
  font-weight: 600;
  margin: 0 0 16px;
  color: var(--fg);
}

.hero__sub {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg-muted);
  margin: 0;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 56px;
}

.article-col {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.single-article {
  min-width: 0;
}

/* ==========================================================================
   6. ARTICLE CARD (home / listing)
   ========================================================================== */

.post-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.2s;
  display: flex;
  align-items: stretch;
}

.post-card__thumb-wrap {
  position: relative;
  z-index: 0;
  width: 186px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg-alt);
}

.post-card__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  margin: 0;
}

.post-card__body {
  padding: 28px;
  flex: 1 1 auto;
  min-width: 0;
}

.post-card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.post-card__title {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.3;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--fg);
}

.post-card__title a {
  color: var(--fg);
}

.post-card__title a.stretched-link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.post-card__excerpt {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-muted);
  margin: 0 0 16px;
}

.tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.tag-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 8px;
}

/* ==========================================================================
   7. SIDEBAR
   ========================================================================== */

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.sidebar__block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar__label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.sidebar__link {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--fg);
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}

.sidebar__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}

.sidebar__recent {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.4;
  color: var(--fg-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  display: block;
}

.sidebar__recent:hover {
  color: var(--accent);
}

/* Filtro per anno: albero a cascata con <details>/<summary> native
   (nessun JS necessario). Cliccando sull'anno/mese si va all'archivio
   corrispondente; cliccando altrove sulla riga si apre/chiude l'elenco. */
.archive-year {
  border-bottom: 1px solid var(--border);
}

.archive-year:last-child {
  border-bottom: none;
}

.archive-year__summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--fg);
}

.archive-year__summary::-webkit-details-marker {
  display: none;
}

.archive-year__summary a {
  color: var(--fg);
  flex: 1 1 auto;
}

.archive-year__summary a:hover {
  color: var(--accent);
}

.archive-year__summary a::before {
  content: "▸";
  display: inline-block;
  font-size: 10px;
  color: var(--fg-muted);
  margin-right: 6px;
  transition: transform 0.15s;
}

.archive-year[open] > .archive-year__summary a::before {
  transform: rotate(90deg);
}

.archive-year__months {
  list-style: none;
  margin: 0 0 8px;
  padding: 0 0 0 16px;
}

.archive-year__months li {
  border-top: 1px solid var(--border);
}

.archive-year__months a {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--fg-muted);
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
}

.archive-year__months a:hover {
  color: var(--accent);
}

.search-form {
  display: flex;
}

.search-form__input {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-alt);
  color: var(--fg);
  outline: none;
  width: 100%;
}

.search-form__input::placeholder {
  color: var(--fg-muted);
}

/* ==========================================================================
   8. SINGLE ARTICLE
   ========================================================================== */

.article-main {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 24px 100px;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--fg-muted);
}

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

.article-meta-top {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.article-title {
  font-family: var(--font-serif);
  font-size: 38px;
  line-height: 1.2;
  font-weight: 600;
  margin: 0 0 18px;
  color: var(--fg);
}

.article-lead {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg-muted);
  margin: 0 0 20px;
}

.article-tags-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.article-thumb-wrap {
  margin: 0 0 32px;
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--bg-alt);
}

.article-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  margin: 0;
  border-radius: 0;
}

.article-rule {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 32px;
}

.article-body {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.75;
  color: var(--fg);
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.article-body p {
  margin: 0;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 0.01em;
  margin: 8px 0 0;
}

.article-body blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 20px;
  line-height: 1.5;
  color: var(--fg);
  border-left: 3px solid var(--accent);
  padding-left: 20px;
  margin: 8px 0;
}

.article-body img {
  border-radius: 6px;
  margin: 8px 0;
}

.article-body a {
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 2px;
}

.article-body ul,
.article-body ol {
  margin: 0;
  padding-left: 24px;
}

.article-footer-nav {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.back-link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}

/* ==========================================================================
   9. CATEGORIA (archivio singola categoria + panoramica "Argomenti")
   ========================================================================== */

.category-hero {
  max-width: 720px;
  margin-bottom: 48px;
}

.category-title {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 600;
  margin: 0 0 16px;
  color: var(--fg);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.category-card {
  position: relative;
  padding: 28px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.category-card__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 10px;
}

.category-card__title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--fg);
}

.category-card__title a {
  color: var(--fg);
}

.category-card__title a.stretched-link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.category-card__desc {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg-muted);
  margin: 0;
}

/* ==========================================================================
   10. CHI SONO
   ========================================================================== */

.about-main {
  max-width: 640px;
  margin: 0 auto;
  padding: 56px 24px 100px;
}

.about-title {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 600;
  margin: 0 0 20px;
  color: var(--fg);
}

.about-lead {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg);
  margin: 0 0 18px;
}

.about-body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--fg-muted);
  margin: 0 0 28px;
}

.about-body p {
  margin: 0 0 18px;
}

.about-contact-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.about-contact-row a {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}

/* ==========================================================================
   11. FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  transition: background 0.2s, border-color 0.2s;
}

.site-footer__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px 24px 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}

.site-footer__left {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
}

.site-footer__tag {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--fg-muted);
  margin-top: 8px;
}

.site-footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.site-footer__links a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted);
}

.site-footer__links a:hover {
  color: var(--accent);
}

.site-footer__bottom {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 32px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}

/* ==========================================================================
   12. PAGINAZIONE / STATI VUOTI
   ========================================================================== */

.pagination {
  margin-top: 40px;
}

.pagination,
.pagination ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
}

.pagination li {
  list-style: none;
  margin: 0;
  display: flex;
}

.pagination a,
.pagination span {
  color: var(--fg-muted);
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  display: inline-block;
  line-height: 1.2;
}

.pagination a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.no-results {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--fg-muted);
}

/* ==========================================================================
   13. RESPONSIVE
   ========================================================================== */

/* Tablet: sidebar sotto il contenuto principale, griglie a colonna singola. */
@media (max-width: 860px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .hero__title {
    font-size: 32px;
  }

  .article-title {
    font-size: 30px;
  }
}

/* Tablet piccolo / telefono in orizzontale: si riduce lo spazio verticale
   e il padding interno di card e box, per non sprecare spazio su schermi
   più bassi. */
@media (max-width: 680px) {
  .main-wrap,
  .article-main,
  .about-main {
    padding-top: 40px;
    padding-bottom: 72px;
  }

  .hero {
    margin-bottom: 40px;
  }

  .post-card__body {
    padding: 20px;
  }

  .category-card {
    padding: 20px;
  }

  .cover__motto {
    font-size: 34px;
  }

  .cover__subtitle {
    font-size: 16px;
  }
}

/* Telefono: header che va a capo se necessario, tipografia più compatta,
   footer impilato in colonna. */
@media (max-width: 520px) {
  .post-card {
    flex-direction: column;
  }

  .post-card__thumb-wrap {
    width: 100%;
    aspect-ratio: 16 / 9;
  }

  .site-header__inner {
    padding: 14px 18px;
    flex-wrap: wrap;
    row-gap: 10px;
  }

  .site-nav {
    gap: 16px;
    width: 100%;
    justify-content: flex-start;
  }

  .site-nav__menu {
    gap: 16px;
    row-gap: 8px;
  }

  .theme-toggle {
    margin-left: auto;
  }

  .main-wrap,
  .article-main,
  .about-main {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero__title {
    font-size: 26px;
  }

  .hero__sub {
    font-size: 15px;
  }

  .article-title {
    font-size: 26px;
  }

  .article-lead {
    font-size: 16px;
  }

  .article-body {
    font-size: 16px;
  }

  .category-title {
    font-size: 28px;
  }

  .about-title {
    font-size: 28px;
  }

  .cover__motto {
    font-size: 28px;
  }

  .pagination {
    flex-wrap: wrap;
    row-gap: 8px;
  }

  .site-footer__inner {
    flex-direction: column;
    gap: 24px;
  }
}

/* Telefono piccolo: ultimo affinamento per evitare testo troppo grande o
   spazi sprecati sui viewport più stretti (~360px e sotto). */
@media (max-width: 380px) {
  .site-logo {
    font-size: 14px;
  }

  .cover__motto {
    font-size: 24px;
  }

  .cover__cta {
    padding: 10px 22px;
    font-size: 13px;
  }

  .post-card__title,
  .category-card__title {
    font-size: 20px;
  }
}