/* =============================================
   TEMA HUGO - Blog Tecnico / Didattico
   Design: minimal-tecnico, mobile-first
   ============================================= */

/* --- FONT --- */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,600;1,400&family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,600;1,9..144,300&display=swap');

/* --- VARIABILI --- */
:root {
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-display: 'Fraunces', serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Palette chiara */
  --bg: #f8f7f4;
  --bg-card: #ffffff;
  --bg-code: #f0ede8;
  --border: #e2ddd6;
  --text-primary: #1a1816;
  --text-secondary: #5a534d;
  --text-muted: #9b9189;
  --accent: #c1440e;
  /* arancio-ruggine: energia tecnica */
  --accent-soft: #f5ede8;
  --accent2: #2d6a8f;
  /* blu scuro: accento secondario */
  --accent2-soft: #e8f1f7;
  --tag-bg: #f0ece6;
  --tag-text: #5a534d;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.07);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.09);

  --max-w: 760px;
  --sidebar-w: 240px;
  --gap: 1.5rem;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141210;
    --bg-card: #1e1c19;
    --bg-code: #252320;
    --border: #2e2b27;
    --text-primary: #e8e4de;
    --text-code: #ffffdd;
    --text-secondary: #a09890;
    --text-muted: #6b625b;
    --accent: #e06030;
    --accent-soft: #2a1a13;
    --accent2: #5b9ec9;
    --accent2-soft: #112030;
    --tag-bg: #252320;
    --tag-text: #a09890;
  }
}

/* --- RESET & BASE --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  font-weight: 400;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

a:hover {
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

/* --- TIPOGRAFIA --- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  margin-bottom: 0.5rem;
}

h2 {
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
  margin: 2rem 0 0.75rem;
}

h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.5rem;
}

h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.2rem 0 0.4rem;
}

p {
  margin-bottom: 1.1rem;
  color: var(--text-primary);
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* --- CODICE --- */
code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-code);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--accent);
  border: 1px solid var(--border);
}

pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

pre code {
  background: none;
  border: none;
  color: var(--text-code);
  padding: 0;
  font-size: inherit;
}

/* --- LISTE --- */
ul,
ol {
  padding-left: 1.5rem;
  margin-bottom: 1.1rem;
}

li {
  margin-bottom: 0.3rem;
}

li>ul,
li>ol {
  margin-top: 0.3rem;
  margin-bottom: 0.3rem;
}

/* --- TABELLE --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
  overflow-x: auto;
  display: block;
}

thead tr {
  background: var(--bg-code);
  border-bottom: 2px solid var(--border);
}

th {
  padding: 0.65rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--bg-code);
}

/* ============================================
   LAYOUT PRINCIPALE
   ============================================ */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* --- HEADER --- */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 0 1rem;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 1rem;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-logo-img {
  height: 32px;
  width: auto;
  border-radius: 50%;
  object-fit: cover;
}

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

/* Navigazione desktop */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-menu a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 400;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

.nav-menu a:hover {
  color: var(--text-primary);
  background: var(--bg-code);
  text-decoration: none;
}

.nav-menu a.active {
  color: var(--accent);
  background: var(--accent-soft);
  text-decoration: none;
  font-weight: 600;
}

/* Dropdown Didattica */
.has-dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.4rem 0;
  padding-top: calc(0.4rem + 6px);
  min-width: 180px;
  box-shadow: var(--shadow-md);
  list-style: none;
  z-index: 200;
}

.has-dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: block;
  padding: 0.45rem 1rem;
  border-radius: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.dropdown-menu a:hover,
.dropdown-menu a.active {
  background: var(--accent-soft);
  color: var(--accent);
}

/* Icona ricerca navbar */
.nav-lang-switch {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--text-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 7px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  white-space: nowrap;
}
.nav-lang-switch:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.nav-search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  flex-shrink: 0;
}

.nav-search-btn:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

/* Pagina ricerca */
.search-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.search-page-header {
  margin-bottom: 2rem;
}

.search-page-header h1 {
  margin-bottom: 0.35rem;
}

.search-page-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

/* Override Pagefind UI per coerenza col tema */
#pagefind-search {
  --pagefind-ui-scale: 0.95;
  --pagefind-ui-primary: var(--accent);
  --pagefind-ui-text: var(--text-primary);
  --pagefind-ui-background: var(--bg-card);
  --pagefind-ui-border: var(--border);
  --pagefind-ui-tag: var(--bg-code);
  --pagefind-ui-border-width: 1px;
  --pagefind-ui-border-radius: 8px;
  --pagefind-ui-font: var(--font-sans);
}

/* Hamburger menu mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: none;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* --- HERO / INTRO HOMEPAGE --- */
.hero {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 300;
  line-height: 1.15;
  margin-bottom: 1rem;
  max-width: 620px;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 1.5rem;
}

/* --- CARD POST --- */
.posts-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  margin-bottom: 3rem;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: box-shadow 0.2s, transform 0.15s;
  text-decoration: none;
  color: inherit;
}

.post-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.post-card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0;
  color: var(--text-primary);
}

.post-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- TAGS / BADGE --- */
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 0.2em 0.6em;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  border: 1px solid var(--border);
}

.tag-accent {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.tag-blue {
  background: var(--accent2-soft);
  color: var(--accent2);
  border-color: var(--accent2);
}

.tag-interactive {
  background: #e6f4ec;
  color: #1a6b3a;
  border-color: #1a6b3a;
}

.post-card--interactive {
  border-left: 3px solid #1a6b3a;
}

@media (prefers-color-scheme: dark) {
  .tag-interactive {
    background: #0d2218;
    color: #5dbf80;
    border-color: #2d7a4f;
  }
  .post-card--interactive {
    border-left-color: #2d7a4f;
  }
}

/* Colori per materie */
.tag-informatica {
  background: #e8f0e8;
  color: #2d6b3a;
  border-color: #2d6b3a;
}

.tag-sistemi {
  background: var(--accent2-soft);
  color: var(--accent2);
  border-color: var(--accent2);
}

.tag-packet-tracer {
  background: #fef3e2;
  color: #9a5f00;
  border-color: #9a5f00;
}

.tag-sicurezza {
  background: #fce8e8;
  color: #a33030;
  border-color: #a33030;
}

.tag-matematica {
  background: #f0e8fa;
  color: #6b30a3;
  border-color: #6b30a3;
}

.tag-fisica {
  background: #e8f5fa;
  color: #1a6b8a;
  border-color: #1a6b8a;
}

@media (prefers-color-scheme: dark) {
  .tag-informatica {
    background: #112215;
    color: #7bc988;
    border-color: #3d8f4d;
  }

  .tag-sistemi {
    background: var(--accent2-soft);
    color: var(--accent2);
    border-color: var(--accent2);
  }

  .tag-packet-tracer {
    background: #2a1e08;
    color: #d4952a;
    border-color: #7a5a18;
  }

  .tag-sicurezza {
    background: #2a0e0e;
    color: #e07070;
    border-color: #8a3030;
  }

  .tag-matematica {
    background: #1e0e2a;
    color: #c070e8;
    border-color: #7040a0;
  }

  .tag-fisica {
    background: #0a1e2a;
    color: #70c0e0;
    border-color: #285878;
  }
}

/* --- DATA --- */
.post-date {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* --- SEZIONE (homepage, sidebar) --- */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
}

.section-more {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--accent);
}

/* --- PAGINA ARTICOLO --- */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2rem 0 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

@media (min-width: 1000px) {
  .article-layout {
    grid-template-columns: var(--max-w) var(--sidebar-w);
    gap: 3rem;
  }
}

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

.article-header {
  margin-bottom: 2.5rem;
}

.article-header .post-card-meta {
  margin-bottom: 0.75rem;
}

.article-header h1 {
  margin-bottom: 0.75rem;
}

.article-header .subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
}

/* Contenuto articolo */
.article-content h2 {
  scroll-margin-top: 80px;
}

.article-content h3 {
  scroll-margin-top: 80px;
}

.article-content img {
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin: 1.5rem auto;
}

.article-content .callout {
  border-left: 3px solid var(--accent2);
  background: var(--accent2-soft);
  padding: 0.85rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

/* Sidebar articolo */
.article-sidebar {
  display: none;
}

@media (min-width: 1000px) {
  .article-sidebar {
    display: block;
  }

  .article-sidebar-inner {
    position: sticky;
    top: 80px;
  }
}

/* TOC nella sidebar */
.toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.toc-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.toc ol,
.toc ul {
  padding-left: 1rem;
  margin: 0;
  font-size: 0.85rem;
}

.toc li {
  margin-bottom: 0.3rem;
}

.toc a {
  color: var(--text-secondary);
}

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

/* --- CURRICULUM PAGE --- */
.cv-section {
  margin-bottom: 3rem;
}

.cv-section h2 {
  font-size: 1.1rem;
  font-family: var(--font-mono);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.cv-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

@media (min-width: 640px) {
  .cv-item {
    grid-template-columns: 140px 1fr;
    gap: 0 1.5rem;
  }
}

.cv-period {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: 0.1rem;
}

.cv-title {
  font-weight: 600;
  color: var(--text-primary);
}

.cv-org {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.cv-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.3rem;
}

/* Certificazioni */
.cert-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.cert-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.cert-issuer {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.cert-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Curriculum — tabelle */
.cv-cert-group-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.75rem;
}

.cv-ul {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
  font-size: 0.875rem;
}

.cv-ul li {
  margin-bottom: 0.2rem;
}

.cv-table-wrap {
  overflow-x: auto;
}

.cv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.cv-table th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  text-align: left;
  font-weight: 500;
}

.cv-table td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: top;
}

.cv-table tr:last-child td {
  border-bottom: none;
}

.cv-th-sort {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: color 0.15s;
}

.cv-th-sort:hover {
  color: var(--accent2);
}

.cv-th-sort.cv-th-sort-active {
  color: var(--accent2);
}

.cv-sort-icon {
  font-size: 0.6rem;
  margin-left: 0.25rem;
  opacity: 0.4;
}

.cv-th-sort.cv-th-sort-active .cv-sort-icon {
  opacity: 1;
}

.cv-table tr:hover td {
  background: var(--bg-card);
}

/* Skills badge */
.cv-skill-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.1em 0.6em;
  border-radius: var(--radius-sm);
  border: 1px solid;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.cv-skill-badge.avanzato {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.cv-skill-badge.buono {
  background: var(--bg-card);
  color: var(--text-secondary);
  border-color: var(--border);
}

.cv-skill-badge.discreto {
  background: var(--bg-card);
  color: var(--text-muted);
  border-color: var(--border);
}

/* Lingue */
.cv-langs {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.cv-lang-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.65rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.cv-lang-name {
  font-weight: 600;
  min-width: 80px;
}

.cv-lang-level {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Sezione collassabile */
.cv-details {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}

.cv-details-summary {
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  user-select: none;
}

.cv-details-summary::-webkit-details-marker {
  display: none;
}

.cv-details-summary::before {
  content: "▶";
  font-size: 0.65rem;
  color: var(--accent);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.cv-details[open] .cv-details-summary::before {
  transform: rotate(90deg);
}

.cv-details-summary:hover {
  color: var(--text-primary);
}

.cv-details .cv-table-wrap {
  padding: 0 1rem 1rem;
}

.cv-details-stats {
  display: flex;
  gap: 0.4rem;
  margin-left: 0.75rem;
}

.cv-stat-pill {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  padding: 0.1em 0.6em;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  white-space: nowrap;
}

.cv-stat-pill.accent {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

.cv-details-hint {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Chart formazione */
.cv-chart-container {
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  padding: 1rem 1rem 0.75rem;
}

.cv-chart-toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.cv-chart-tabs {
  display: flex;
  gap: 0.4rem;
}

.cv-chart-check {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  margin-left: auto;
}

.cv-chart-check input[type="checkbox"] {
  accent-color: var(--accent2);
  cursor: pointer;
}

.cv-chart-tab {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25em 0.75em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.cv-chart-tab:hover {
  background: var(--accent2-soft);
  color: var(--accent2);
  border-color: var(--accent2);
}

.cv-chart-tab.active {
  background: var(--accent2-soft);
  color: var(--accent2);
  border-color: var(--accent2);
  font-weight: 600;
}

.cv-chart-note {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin: 0.5rem 0 0;
  line-height: 1.4;
}

/* Pubblicazioni */
.cv-pub-list {
  padding-left: 1.2rem;
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.cv-pub-list li {
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

/* --- PAGINA MATERIE / DIDATTICA --- */
.subjects-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  margin-bottom: 3rem;
}

.subject-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: box-shadow 0.2s, transform 0.15s;
}

.subject-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}

.subject-icon {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
  display: block;
}

.subject-card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.4rem;
}

.subject-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
}

.subject-count {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.6rem;
}

/* --- PAGINA ESERCIZI DINAMICI --- */
.exercise-frame {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 1.5rem 0;
}

.exercise-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: var(--bg-code);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Gruppo di link a destra nella barra: scarica il PDF, apri in finestra. */
.exercise-azioni {
  display: inline-flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.exercise-azioni a {
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}

.exercise-azioni a:hover {
  text-decoration: underline;
}

.exercise-content {
  padding: 1.5rem;
}

/* La cornice dell'iframe non ha senso sulla carta: la scheda si stampa
   dalla propria pagina, o si scarica già impaginata in PDF. */
@media print {
  .exercise-frame {
    display: none;
  }
}

/* --- PAGINAZIONE --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 2rem 0 3rem;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  transition: background 0.15s, color 0.15s;
}

.pagination a:hover {
  background: var(--bg-code);
  text-decoration: none;
  color: var(--text-primary);
}

.pagination .active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* --- BREADCRUMB --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

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

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

.breadcrumb-sep {
  color: var(--border);
}

/* Download button (shortcode) */
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 1.25rem 0;
  padding: 0.65rem 1.25rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}

.download-btn:hover {
  background: color-mix(in srgb, var(--accent) 85%, black);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
}

/* --- FOOTER --- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1rem;
  margin-top: auto;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-search-btn {
    margin-right: 0.25rem;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0 0.75rem;
    gap: 0;
    z-index: 99;
  }

  .nav-menu.open {
    display: flex;
    animation: mobileMenuIn 0.18s ease;
  }

  @keyframes mobileMenuIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .nav-menu > li {
    border-bottom: 1px solid var(--border);
  }

  .nav-menu > li:last-child {
    border-bottom: none;
  }

  .nav-menu > li > a {
    display: block;
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    border-radius: 0;
  }

  .nav-menu > li > a:hover,
  .nav-menu > li > a.active {
    background: var(--accent-soft);
    color: var(--accent);
  }

  .dropdown-menu {
    display: flex;
    flex-direction: column;
    position: static;
    transform: none;
    background: var(--bg);
    border: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0.25rem 0;
    min-width: auto;
    border-top: 1px solid var(--border);
  }

  .dropdown-menu li {
    padding: 0;
  }

  .dropdown-menu a {
    padding: 0.7rem 1.5rem 0.7rem 2.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
  }

  .dropdown-menu a::before {
    content: '›';
    position: absolute;
    left: 1.5rem;
    color: var(--text-muted);
  }

  .dropdown-menu a:hover,
  .dropdown-menu a.active {
    background: var(--accent-soft);
    color: var(--accent);
  }

  .site-header {
    position: sticky;
  }

  .hero {
    padding: 2.5rem 0 2rem;
  }

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

  .article-layout {
    padding: 1.5rem 0 3rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.6rem;
  }

  .post-card {
    padding: 1.1rem;
  }

  pre {
    padding: 1rem;
    font-size: 0.8rem;
  }
}

/* ============================================
   INDICE SEZIONE (es. /didattica/informatica/)
   ============================================ */

.index-group {
  margin-bottom: 2.75rem;
}

.index-group-header {
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.index-group-title {
  font-size: 1.1rem;
  font-family: var(--font-mono);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  margin: 0 0 0.3rem;
}

.index-group-intro {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0;
}

.index-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.index-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.8rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: background 0.15s, border-color 0.15s, transform 0.12s;
}

.index-item:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  transform: translateX(3px);
  text-decoration: none;
}

.index-item-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.index-item-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.index-item-desc {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Badge pillola / pillolona */
.badge-pillola {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  padding: 0.1em 0.55em;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  flex-shrink: 0;
}

.badge-pillolona {
  background: var(--accent2-soft);
  color: var(--accent2);
  border-color: var(--accent2);
}

@media (prefers-color-scheme: dark) {
  .badge-pillola {
    background: var(--accent-soft);
    color: var(--accent);
    border-color: var(--accent);
  }

  .badge-pillolona {
    background: var(--accent2-soft);
    color: var(--accent2);
    border-color: var(--accent2);
  }
}

/* ============================================
   UTILITY
   ============================================ */
.text-mono {
  font-family: var(--font-mono);
}

.text-muted {
  color: var(--text-muted);
}

.text-accent {
  color: var(--accent);
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-4 {
  margin-top: 2rem;
}

.mb-1 {
  margin-bottom: 0.5rem;
}

.mb-2 {
  margin-bottom: 1rem;
}

.mb-4 {
  margin-bottom: 2rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================================
   LANDING PAGE FREELANCE (/freelance)
   ============================================ */
.fl-page {
  max-width: 1100px;
  padding: 2rem 0 4rem;
}

.fl-hero {
  position: relative;
  margin: 1.5rem 0 3rem;
  padding: 3rem 2rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--accent-soft) 0%, var(--accent2-soft) 100%);
  border: 1px solid var(--border);
  overflow: hidden;
}

@media (min-width: 640px) {
  .fl-hero {
    padding: 3.5rem 3rem;
  }
}

.fl-hero-inner {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.fl-hero-text {
  flex: 1;
  min-width: 280px;
}

.fl-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}

.fl-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 300;
  margin-bottom: 0.85rem;
  line-height: 1.15;
}

.fl-hero h1 strong {
  font-weight: 600;
}

.fl-hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.fl-hero-bio {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 58ch;
  margin-bottom: 1.75rem;
}

.fl-hero-photo {
  width: 200px;
  height: 200px;
  border-radius: 30%;
  flex-shrink: 0;
  border: 4px solid var(--bg-card);
  box-shadow: var(--shadow-md);
  object-fit: cover;
}

.fl-cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.fl-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s, color 0.15s;
}

.fl-btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.fl-btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.fl-btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 85%, black);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.fl-btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.fl-btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.fl-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

@media (min-width: 640px) {
  .fl-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.fl-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 0.75rem;
  text-align: center;
}

.fl-stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.2;
}

.fl-stat-label {
  display: block;
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-top: 0.2rem;
}

.fl-section {
  margin: 3.5rem 0;
}

.fl-section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: block;
}

.fl-section h2 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

.fl-section-intro {
  color: var(--text-secondary);
  max-width: 68ch;
  margin-bottom: 2rem;
}

.services-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.service-icon {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
  display: block;
}

.service-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.service-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin: 0;
}

.why-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.why-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.why-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent2-soft);
  border-radius: var(--radius-md);
  color: var(--accent2);
}

.why-card h3 {
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.why-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin: 0;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stack-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.4rem 0.85rem;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 999px;
  border: 1px solid var(--border);
}

.fl-cta-band {
  margin: 4rem 0 1rem;
  padding: 3rem 2rem;
  text-align: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  color: #fff;
}

.fl-cta-band h2 {
  color: #fff;
  font-size: 1.8rem;
  margin-bottom: 0.6rem;
}

.fl-cta-band p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 52ch;
  margin: 0 auto 1.5rem;
}

.fl-cta-band .fl-btn-primary {
  background: #fff;
  color: var(--accent);
}

.fl-cta-band .fl-btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  color: var(--accent);
  transform: translateY(-2px);
}

.cert-description {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}