/*
 * Marbrerie Frediani — Custom Styles
 * Palette: cuivre / ardoise / pierre
 */

html { scroll-behavior: smooth; }

/* ---- Header states ---- */
#site-header { background: transparent; }

#site-header.header-scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

#site-header.header-scrolled .header-logo-text { color: #1A1A2E; }
#site-header.header-scrolled .header-tagline { color: #6B7280; }
#site-header.header-scrolled .header-nav-link { color: #4B5563; }

/* Hero page: white text on transparent header */
.hero-page #site-header:not(.header-scrolled) { background: transparent; }
.hero-page #site-header:not(.header-scrolled) .header-logo-text { color: #fff; }
.hero-page #site-header:not(.header-scrolled) .header-tagline { color: rgba(255,255,255,0.7); }
.hero-page #site-header:not(.header-scrolled) .header-nav-link { color: rgba(255,255,255,0.85); }
.hero-page #site-header:not(.header-scrolled) .header-nav-link:hover { color: #fff; }
.hero-page #site-header:not(.header-scrolled) #mobile-menu-button { color: #fff; }

/* ---- Reading progress bar ---- */
#reading-progress {
  will-change: width;
  pointer-events: none;
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---- Article prose ---- */
.prose { max-width: 68ch; }
.prose h2 { margin-top: 2.5rem; margin-bottom: 1rem; }
.prose h3 { margin-top: 1.75rem; margin-bottom: 0.75rem; }
.prose p { margin-bottom: 1.125rem; }
.prose ul, .prose ol { margin-bottom: 1rem; padding-left: 1.5rem; }
.prose li { margin-bottom: 0.5rem; }

/* h2 accent bar */
.article-prose h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(to bottom, #8B6914, #C49A6C);
}

.prose blockquote {
  border-left: 3px solid #C49A6C;
  padding-left: 1.25rem;
  margin: 2rem 0;
  font-style: normal;
  color: #4B5563;
}

.prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.prose th {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid #C49A6C;
  font-weight: 600;
  font-size: 0.875rem;
  color: #1A1A2E;
}
.prose td { padding: 0.75rem 1rem; border-bottom: 1px solid #f3f0eb; font-size: 0.875rem; }
.prose tr:hover td { background: rgba(232,224,212,0.25); }
.prose tr:last-child td { border-bottom: none; }

/* First paragraph drop cap */
.article-prose > p:first-of-type::first-letter {
  float: left;
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 3.5em;
  line-height: 0.8;
  padding-right: 0.1em;
  padding-top: 0.05em;
  color: #8B6914;
  font-weight: 700;
}

/* ---- Table of contents ---- */
.toc-nav ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.toc-nav li {
  margin-bottom: 0;
}

.toc-nav > nav > ul > li {
  border-bottom: 1px solid rgba(232,224,212,0.4);
  padding: 0.4rem 0;
}
.toc-nav > nav > ul > li:last-child { border-bottom: none; }

.toc-nav a {
  color: #4B5563;
  text-decoration: none;
  transition: color 0.2s;
  display: block;
  padding: 0.25rem 0;
}
.toc-nav a:hover { color: #8B6914; }

.toc-nav ul ul {
  padding-left: 1.25rem;
}
.toc-nav ul ul a {
  color: #9CA3AF;
  font-size: 0.8125rem;
}
.toc-nav ul ul a:hover { color: #8B6914; }

/* ---- Utilities ---- */
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.img-cover { object-fit: cover; width: 100%; height: 100%; }

a:focus-visible, button:focus-visible { outline: 2px solid #8B6914; outline-offset: 2px; }
a, button { transition: color 0.2s ease, background-color 0.2s ease; }

.card-lift {
  transition: transform 0.3s cubic-bezier(0.22,1,0.36,1), box-shadow 0.3s cubic-bezier(0.22,1,0.36,1);
}
.card-lift:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
}

.marble-separator {
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, #E8E0D4 15%, #C49A6C 50%, #E8E0D4 85%, transparent 100%);
  opacity: 0.6;
}

@media print {
  header, footer, nav, .h-20, #reading-progress { display: none !important; }
  .prose { max-width: 100%; }
}