/* ============================================================
   LIGHT MODE — override variabili native di main.scss
   ============================================================ */
body.light-mode {
  --bg:            #f0f4f8;
  --bg-soft:       #e4eaf3;
  --panel:         rgba(255,255,255,0.90);
  --panel-strong:  rgba(255,255,255,0.98);
  --line:          rgba(0,0,0,0.10);
  --text:          #0f172a;
  --muted:         #475569;
  --accent:        #0033ff;
  --accent-strong: #0022cc;
  --accent-soft:   rgba(0,51,255,0.12);
  --success:       #16a34a;
  --shadow:        0 24px 70px rgba(0,0,0,0.10);
}

body.light-mode {
  background:
    radial-gradient(circle at top left, rgba(29,95,168,0.09), transparent 26%),
    radial-gradient(circle at 80% 10%, rgba(22,163,74,0.06), transparent 20%),
    linear-gradient(180deg, #f0f4f8 0%, #e8eef6 50%, #f0f4f8 100%) !important;
  color: var(--text) !important;
}

body.light-mode .site-header-inner {
  background: rgba(255,255,255,0.88) !important;
  border-color: rgba(0,0,0,0.10) !important;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08) !important;
}

body.light-mode .glass-card,
body.light-mode .hero-copy,
body.light-mode .page-hero,
body.light-mode .prose-card,
body.light-mode .post-hero,
body.light-mode .hero-panel-card {
  background: rgba(255,255,255,0.90) !important;
  border-color: rgba(0,0,0,0.09) !important;
}

body.light-mode .status-list li {
  background: rgba(0,0,0,0.03) !important;
  border-color: rgba(0,0,0,0.08) !important;
}

body.light-mode .footer-grid > div {
  background: rgba(255,255,255,0.80) !important;
  border-color: rgba(0,0,0,0.08) !important;
}

body.light-mode .page-glow-a { background: rgba(0,51,255,0.12) !important; opacity: 0.5; }
body.light-mode .page-glow-b { background: rgba(22,163,74,0.08) !important; opacity: 0.5; }

body.light-mode .nav-sidebar {
  background: rgba(255,255,255,0.98) !important;
  border-right-color: rgba(0,0,0,0.10) !important;
}

body.light-mode .sidebar-search input {
  background: rgba(0,0,0,0.05) !important;
}

body.light-mode .sidebar-nav-link {
  color: var(--muted);
}

body.light-mode .projects-section {
  background: rgba(255,255,255,0.90);
  border-color: rgba(0,0,0,0.09);
}
body.light-mode .project-card {
  background: rgba(232,238,246,0.95);
  border-color: rgba(0,0,0,0.09);
}
body.light-mode .project-tech span {
  background: rgba(255,255,255,0.85);
}

/* ============================================================
   HEADER CONTROLS
   ============================================================ */
.header-controls {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* ============================================================
   HAMBURGER — 3 barre reali
   ============================================================ */
.hamburger-menu {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 14px;
  cursor: pointer;
  padding: 0 12px;
  flex-shrink: 0;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.hamburger-menu:hover {
  background: var(--accent-soft);
  border-color: rgba(112,184,255,0.35);
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text);
  border-radius: 999px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger-menu.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-menu.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger-menu.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hamburger-menu:focus { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ============================================================
   THEME TOGGLE
   ============================================================ */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 14px;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.theme-toggle:hover {
  background: var(--accent-soft);
  border-color: rgba(112,184,255,0.35);
  transform: scale(1.1);
}

.theme-toggle:focus { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ============================================================
   SIDEBAR LATERALE
   ============================================================ */
.nav-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  width: 300px;
  background: rgba(6,12,22,0.98);
  border-right: 1px solid rgba(148,163,184,0.14);
  backdrop-filter: blur(24px);
  z-index: 100;
  /* chiusa di default: nascosta a sinistra e invisibile */
  transform: translateX(-100%);
  visibility: hidden;
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0s linear 0.32s;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
}

.nav-sidebar.open {
  transform: translateX(0);
  visibility: visible;
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0s linear 0s;
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(0,0,0,0.50);
  backdrop-filter: blur(2px);
  display: none;
}

.sidebar-overlay.open { display: block; }

/* Sidebar header row */
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 12px;
  border-bottom: 1px solid rgba(148,163,184,0.10);
}

.sidebar-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sidebar-close {
  background: transparent;
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 10px;
  color: var(--muted);
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease;
}

.sidebar-close:hover { background: rgba(255,255,255,0.08); color: var(--text); }

/* Search */
.sidebar-search {
  padding: 16px 20px 0;
}

.sidebar-search input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(148,163,184,0.18);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.sidebar-search input::placeholder { color: var(--muted); }

.sidebar-search input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255,255,255,0.09);
}

/* Sections */
.sidebar-section {
  padding: 20px 20px 0;
}

.sidebar-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin: 0 0 10px;
}

/* Nav links */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav-link {
  display: block;
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--text);
  font-size: 0.95rem;
  transition: background 0.18s ease, color 0.18s ease;
}

.sidebar-nav-link:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.sidebar-nav-link.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

/* Reading list */
.sidebar-reading-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 24px;
}

.sidebar-empty {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  padding: 8px 4px;
}

.sidebar-reading-link {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--text);
  font-size: 0.88rem;
  line-height: 1.45;
  transition: background 0.18s ease;
}

.sidebar-reading-link:hover { background: var(--accent-soft); }

.sidebar-reading-link .bookmark-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

.sidebar-reading-remove {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.75rem;
  padding: 2px 4px;
  border-radius: 4px;
  flex-shrink: 0;
  transition: color 0.15s ease;
}

.sidebar-reading-remove:hover { color: #ef4444; }

/* ============================================================
   BOOKMARK BUTTON — sugli articoli
   ============================================================ */
.bookmark-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(6,12,22,0.60);
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 10px;
  width: 34px;
  height: 34px;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.bookmark-btn:hover {
  transform: scale(1.15);
  background: rgba(112,184,255,0.18);
  border-color: rgba(112,184,255,0.40);
}

.bookmark-btn.is-saved {
  background: rgba(112,184,255,0.20);
  border-color: rgba(112,184,255,0.45);
}

body.light-mode .bookmark-btn {
  background: rgba(255,255,255,0.75);
  border-color: rgba(0,0,0,0.12);
}

/* Bookmark button on post pages (not absolute) */
.bookmark-btn.post-bookmark {
  position: static;
  width: auto;
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.9rem;
  gap: 6px;
  margin-top: 18px;
  color: var(--text);
}

/* ============================================================
   PROJECTS SECTION
   ============================================================ */
.projects-section {
  margin: 2rem 0;
  padding: 2rem;
  background: linear-gradient(180deg, rgba(12,21,38,0.9) 0%, rgba(10,18,32,0.92) 100%);
  border: 1px solid rgba(148,163,184,0.15);
  border-radius: 28px;
  backdrop-filter: blur(18px);
}

.projects-section h2 { font-size: 1.4rem; margin-bottom: 1.5rem; letter-spacing: -0.02em; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.project-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(148,163,184,0.13);
  border-radius: 18px;
  padding: 1.25rem;
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.project-card:hover {
  border-color: rgba(112,184,255,0.3);
  background: rgba(255,255,255,0.07);
  transform: translateY(-2px);
}

.project-card h3 { font-size: 1rem; margin-bottom: 0.5rem; color: var(--accent); display: flex; justify-content: space-between; align-items: center; }
.project-toggle { background: none; border: none; font-size: 0.85rem; cursor: pointer; color: var(--accent); padding: 0; transition: transform 0.3s ease; flex-shrink: 0; }
.project-toggle.open { transform: rotate(180deg); }

.project-status { display: inline-block; font-size: 0.72rem; padding: 0.2rem 0.6rem; border-radius: 999px; margin-bottom: 0.6rem; font-weight: 600; }
.project-status.in-progress { background: rgba(112,184,255,0.15); color: var(--accent); }
.project-status.completed { background: rgba(34,197,94,0.15); color: #22c55e; }

.project-progress { width: 100%; height: 3px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; margin-bottom: 0.6rem; }
.project-progress-bar { height: 100%; background: linear-gradient(90deg, var(--accent-strong), var(--accent)); width: 0; transition: width 0.6s ease; }

.project-details { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.project-card.expanded .project-details { max-height: 500px; margin-top: 0.75rem; padding-top: 0.75rem; border-top: 1px solid rgba(148,163,184,0.13); }

.project-description { font-size: 0.88rem; line-height: 1.65; color: var(--muted); margin-bottom: 0.6rem; }
.project-tech { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.6rem; }
.project-tech span { background: rgba(255,255,255,0.06); padding: 0.18rem 0.55rem; border-radius: 999px; font-size: 0.76rem; color: var(--accent); border: 1px solid rgba(112,184,255,0.15); }

.projects-archive { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid rgba(148,163,184,0.13); }
.projects-archive h3 { font-size: 1rem; margin-bottom: 0.75rem; color: var(--muted); }
.archive-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.archive-list li { padding: 0.6rem 0.75rem; background: rgba(255,255,255,0.03); border-radius: 12px; border-left: 2px solid var(--accent); }
.archive-list a { color: var(--accent); font-size: 0.88rem; font-weight: 500; }

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb { margin: 0.75rem 0; padding: 0.5rem 1rem; background: rgba(15,23,42,0.5); border-radius: 12px; font-size: 0.88rem; }
.breadcrumb ol { display: flex; list-style: none; gap: 0.25rem; flex-wrap: wrap; }
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li:not(:last-child)::after { content: '/'; margin: 0 0.4rem; color: var(--muted); }
.breadcrumb a { color: var(--accent); }
.breadcrumb span { color: var(--muted); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 560px) {
  .nav-sidebar { width: 85vw; }
  .projects-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   ACCESSIBILITÀ
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
button:focus, a:focus, input:focus { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Chip / label in light mode → blu elettrico */
body.light-mode .link-card-label,
body.light-mode .meta-chip,
body.light-mode .card-kicker,
body.light-mode .eyebrow,
body.light-mode .panel-label,
body.light-mode .post-meta,
body.light-mode .post-meta-row {
  color: #0033ff !important;
  border-color: rgba(0, 51, 255, 0.22) !important;
  background: rgba(0, 51, 255, 0.07) !important;
}

/* Spaziatura ridotta tra titoli e testo */
h1, h2, h3, h4 {
  margin-bottom: 0.35em;
}
.hero h1,
.page-hero h1,
.post-hero h1 {
  margin-bottom: 0.25em;
}
.hero-subtitle,
.hero-intro,
.page-lead,
.post-excerpt {
  margin-top: 0.35em;
}
.prose-card h2,
.prose-card h3 {
  margin-top: 1.2em;
  margin-bottom: 0.35em;
}
.section-heading {
  margin-bottom: 10px;
}
.info-card h3,
.link-card strong,
.article-card h2,
.feature-article h3 {
  margin-top: 8px;
  margin-bottom: 6px;
}

/* ============================================================
   CERCHIO FOTO PROFILO
   ============================================================ */
.profile-circle-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.profile-circle {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--line);
  box-shadow: 0 0 0 6px rgba(112, 184, 255, 0.12),
              0 24px 60px rgba(0, 0, 0, 0.35);
  display: block;
}

.profile-circle-placeholder {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(63, 140, 255, 0.15), rgba(120, 219, 169, 0.08));
  border: 2px dashed rgba(112, 184, 255, 0.35);
  box-shadow: 0 0 0 6px rgba(112, 184, 255, 0.07),
              0 24px 60px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.profile-circle-placeholder:hover {
  border-color: rgba(112, 184, 255, 0.6);
  box-shadow: 0 0 0 6px rgba(112, 184, 255, 0.14),
              0 24px 60px rgba(0, 0, 0, 0.3);
}

.profile-initials {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
}

.profile-upload-hint {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* Light mode */
body.light-mode .profile-circle-placeholder {
  background: linear-gradient(135deg, rgba(0, 51, 255, 0.07), rgba(22, 163, 74, 0.05));
  border-color: rgba(0, 51, 255, 0.30);
}

/* Responsive */
@media (max-width: 980px) {
  .profile-circle,
  .profile-circle-placeholder {
    width: 180px;
    height: 180px;
  }
  .profile-initials { font-size: 2rem; }
}

/* ── Brand logo ── */
.brand-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 50%;
  display: block;
  flex-shrink: 0;
}
.brand-mark {
  display: none;
}