/* ═══════════════════════════════════════════════
   SIGNALGEO — Main CSS
   ═══════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink:       #0e0e0e;
  --ink-2:     #2a2a2a;
  --ink-3:     #555;
  --ink-4:     #888;
  --paper:     #faf8f4;
  --paper-2:   #f2efe9;
  --paper-3:   #e8e4dc;
  --red:       #c0392b;
  --red-light: rgba(192,57,43,0.08);
  --gold:      #b5922a;
  --rule:      #d4cfc6;
  --rule-dark: #a09890;
}

html { font-size: 17px; scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Source Serif 4', Georgia, serif;
  font-weight: 300;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

/* ─── TICKER ─── */
.ticker {
  background: var(--ink);
  color: var(--paper);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 7px 0;
  overflow: hidden;
  white-space: nowrap;
}
.ticker-inner {
  display: inline-block;
  animation: ticker 40s linear infinite;
}
.ticker-inner span { margin-right: 80px; }
.ticker-inner span::before { content: '▸'; color: var(--gold); margin-right: 10px; }
@keyframes ticker { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ─── HEADER ─── */
.site-header {
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  gap: 24px;
}
.logo { display: flex; flex-direction: column; text-decoration: none; color: inherit; flex-shrink: 0; }
.logo-name { font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 900; letter-spacing: -0.02em; line-height: 1; color: var(--ink); }
.logo-name span { color: var(--red); }
.logo-tagline { font-family: 'JetBrains Mono', monospace; font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-4); margin-top: 3px; }
.header-center { flex: 1; display: flex; justify-content: center; }
.header-meta { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; color: var(--ink-4); text-align: center; line-height: 1.6; }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

.btn-subscribe {
  background: var(--ink); color: var(--paper);
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  display: flex;
  gap: 10px;
  align-items: center;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 9px 20px; border: none; cursor: pointer;
  text-decoration: none; transition: background .2s;
}
.btn-subscribe:hover { background: var(--red); }

.btn-x {
  display: flex; align-items: center; gap: 6px;
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.08em; color: var(--ink-3);
  text-decoration: none; padding: 9px 14px;
  border: 1px solid var(--rule); transition: all .2s;
}
.btn-x:hover { border-color: var(--ink); color: var(--ink); }

.site-nav {
  border-top: 1px solid var(--rule);
  padding: 0 48px;
  display: flex; align-items: center; gap: 0;
  overflow-x: auto;
}
.site-nav a {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-3); text-decoration: none;
  padding: 11px 16px; border-bottom: 2px solid transparent;
  white-space: nowrap; transition: all .2s;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a.active { color: var(--ink); border-bottom-color: var(--red); }
.nav-divider { width: 1px; height: 12px; background: var(--rule); margin: 0 4px; flex-shrink: 0; }

/* ─── ARTICLE HERO ─── */
.article-hero {
  border-bottom: 1px solid var(--rule);
  padding: 64px 48px 48px;
  max-width: 1100px;
  margin: 0 auto;
}
.article-category {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--red); margin-bottom: 20px;
  text-decoration: none;
}
.article-category::before { content: ''; display: block; width: 24px; height: 1px; background: var(--red); }
.article-category a { color: var(--red); text-decoration: none; }

.article-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(26px, 4vw, 46px);
  font-weight: 700; line-height: 1.15;
  letter-spacing: -0.02em; color: var(--ink);
  max-width: 800px; margin-bottom: 20px;
}
.article-title a { text-decoration: none; color: inherit; }

.article-deck {
  font-family: 'Source Serif 4', serif; font-size: 19px;
  font-weight: 300; font-style: italic; color: var(--ink-3);
  max-width: 680px; line-height: 1.55; margin-bottom: 28px;
}
.article-byline { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.byline-tag { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-4); }
.byline-tag strong { color: var(--ink-2); font-weight: 500; }
.byline-sep { width: 3px; height: 3px; background: var(--rule-dark); border-radius: 50%; }
.alert-badge {
  background: var(--red-light); color: var(--red);
  font-family: 'JetBrains Mono', monospace; font-size: 9px;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 4px 10px; border: 1px solid rgba(192,57,43,0.2);
}

/* ─── LAYOUT ARTICLE ─── */
.article-layout {
  max-width: 1100px; margin: 0 auto;
  padding: 48px 48px;
  display: grid; grid-template-columns: 1fr 280px;
  gap: 64px; align-items: start;
}

/* ─── CONTENU ARTICLE ─── */
.article-body h2 {
  font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 600;
  color: var(--ink); margin: 40px 0 14px; padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}
.article-body h3 {
  font-family: 'Playfair Display', serif; font-size: 18px; font-weight: 600;
  color: var(--ink); margin: 28px 0 10px;
}
.article-body p { font-size: 17px; line-height: 1.8; color: var(--ink-2); margin-bottom: 20px; }
.article-body > p:first-of-type::first-letter {
  font-family: 'Playfair Display', serif; font-size: 64px; font-weight: 900;
  float: left; line-height: 0.8; margin: 8px 8px 0 0; color: var(--ink);
}
.article-body strong { color: var(--ink); font-weight: 600; }
.article-body a { color: var(--ink); border-bottom: 1px solid var(--rule-dark); text-decoration: none; transition: border-color .2s; }
.article-body a:hover { border-color: var(--red); }

.article-body ul { margin: 0 0 20px 0; padding: 0; list-style: none; }
.article-body ul li { font-size: 17px; color: var(--ink-2); padding: 8px 0 8px 20px; border-bottom: 1px solid var(--paper-3); position: relative; }
.article-body ul li::before { content: '▸'; color: var(--gold); position: absolute; left: 0; font-size: 12px; top: 10px; }

.pullquote { border-left: 3px solid var(--red); margin: 36px 0; padding: 4px 0 4px 28px; }
.pullquote p { font-family: 'Playfair Display', serif !important; font-size: 21px !important; font-style: italic; font-weight: 400; color: var(--ink) !important; line-height: 1.5 !important; margin: 0 !important; }
.pullquote p::first-letter { all: unset !important; float: none !important; }

.vigilance-box {
  background: var(--paper-2); border: 1px solid var(--rule);
  border-top: 3px solid var(--gold); padding: 24px 28px; margin: 32px 0;
}
.vigilance-box h3 {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 14px; border: none !important;
}
.vigilance-box ul { margin: 0; }
.vigilance-box ul li { font-size: 15px !important; border-bottom-color: var(--rule) !important; }

/* Tags */
.article-tags { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.tags-label { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-4); margin-right: 4px; }
.tag-item {
  font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.08em;
  color: var(--ink-3); padding: 4px 10px; border: 1px solid var(--rule);
  text-decoration: none; transition: all .2s;
}
.tag-item:hover { border-color: var(--ink); color: var(--ink); }

/* Nav article */
.article-nav { display: flex; gap: 0; margin-top: 40px; border-top: 2px solid var(--ink); }
.article-nav-item {
  flex: 1; padding: 20px; text-decoration: none; color: inherit;
  border-right: 1px solid var(--rule); transition: background .2s;
  display: flex; flex-direction: column; gap: 6px;
}
.article-nav-item:last-child { border-right: none; text-align: right; }
.article-nav-item:hover { background: var(--paper-2); }
.nav-direction { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-4); }
.nav-title { font-family: 'Playfair Display', serif; font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.35; }

/* ─── SIDEBAR ─── */
.article-sidebar { position: sticky; top: 120px; }
.sidebar-block { margin-bottom: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--rule); }
.sidebar-block:last-child { border-bottom: none; }
.sidebar-label { font-family: 'JetBrains Mono', monospace; font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-4); margin-bottom: 14px; }

.related-item { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--paper-3); text-decoration: none; color: inherit; transition: color .15s; }
.related-item:last-child { border-bottom: none; }
.related-num { font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 700; color: var(--paper-3); line-height: 1; flex-shrink: 0; width: 28px; }
.related-text { font-size: 13px; line-height: 1.45; color: var(--ink-2); font-weight: 400; }
.related-item:hover .related-text { color: var(--red); }

.newsletter-block { background: var(--ink); padding: 20px; color: var(--paper); }
.newsletter-block h3 { font-family: 'Playfair Display', serif; font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.newsletter-block p { font-size: 12px; color: rgba(250,248,244,0.6); line-height: 1.5; margin-bottom: 14px; }
.newsletter-input { width: 100%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); color: var(--paper); font-family: 'JetBrains Mono', monospace; font-size: 11px; padding: 10px 12px; margin-bottom: 8px; outline: none; }
.newsletter-input::placeholder { color: rgba(255,255,255,0.3); }
.newsletter-submit { width: 100%; background: var(--red); color: white; border: none; font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; padding: 10px; cursor: pointer; transition: opacity .2s; }
.newsletter-submit:hover { opacity: 0.85; }

/* ─── HOME ─── */
.featured-wrap { border-bottom: 1px solid var(--rule); }
.featured-article { max-width: 1100px; margin: 0 auto; padding: 64px 48px 48px; }
.featured-title { font-family: 'Playfair Display', serif; font-size: clamp(30px, 5vw, 52px); font-weight: 700; line-height: 1.12; letter-spacing: -0.02em; color: var(--ink); max-width: 820px; margin-bottom: 20px; }
.featured-title a { text-decoration: none; color: inherit; }
.featured-title a:hover { color: var(--red); }
.featured-deck { font-family: 'Source Serif 4', serif; font-size: 20px; font-weight: 300; font-style: italic; color: var(--ink-3); max-width: 680px; line-height: 1.55; margin-bottom: 28px; }
.btn-lire { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); text-decoration: none; border-bottom: 2px solid var(--red); padding-bottom: 2px; margin-top: 8px; transition: color .2s; }
.btn-lire:hover { color: var(--red); }

.home-layout { max-width: 1100px; margin: 0 auto; padding: 48px 48px; display: grid; grid-template-columns: 1fr 280px; gap: 64px; align-items: start; }
.articles-grid-col { min-width: 0; }

.section-label { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; padding-bottom: 12px; border-bottom: 2px solid var(--ink); }
.section-label span { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-4); }
.section-label a { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule); }
.section-label a:hover { border-color: var(--red); color: var(--red); }

.articles-grid { display: flex; flex-direction: column; gap: 0; }
.article-card { padding: 24px 0; border-bottom: 1px solid var(--rule); }
.article-card:last-child { border-bottom: none; }
.card-category { font-family: 'JetBrains Mono', monospace; font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--red); margin-bottom: 8px; }
.card-category a { color: var(--red); text-decoration: none; }
.card-title { font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 600; line-height: 1.3; margin-bottom: 10px; }
.card-title a { text-decoration: none; color: var(--ink); }
.card-title a:hover { color: var(--red); }
.card-excerpt { font-size: 14px; color: var(--ink-3); line-height: 1.6; margin-bottom: 10px; }
.card-meta { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--ink-4); letter-spacing: 0.06em; }
.meta-sep { margin: 0 6px; color: var(--rule-dark); }

/* ─── CATEGORIES SIDEBAR ─── */
.cat-link { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--paper-3); text-decoration: none; color: var(--ink-2); font-size: 13px; transition: color .15s; }
.cat-link:last-child { border-bottom: none; }
.cat-link:hover, .cat-link.active { color: var(--red); }
.cat-count { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--ink-4); }

/* ─── ARCHIVE ─── */
.archive-hero { border-bottom: 1px solid var(--rule); padding: 48px 48px 40px; max-width: 1100px; margin: 0 auto; }
.archive-title { font-family: 'Playfair Display', serif; font-size: clamp(28px, 4vw, 44px); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 12px; }
.archive-desc { font-size: 16px; color: var(--ink-3); font-style: italic; }

.articles-list { display: flex; flex-direction: column; }
.article-list-item { padding: 24px 0; border-bottom: 1px solid var(--rule); }
.list-meta { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--ink-4); letter-spacing: 0.06em; margin-bottom: 8px; }
.list-cat { color: var(--red); text-decoration: none; }
.list-title { font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 600; line-height: 1.3; margin-bottom: 8px; }
.list-title a { text-decoration: none; color: var(--ink); }
.list-title a:hover { color: var(--red); }
.list-excerpt { font-size: 14px; color: var(--ink-3); line-height: 1.6; }

/* ─── PAGINATION ─── */
.pagination { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--rule); display: flex; gap: 8px; flex-wrap: wrap; }
.pagination .page-numbers { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.08em; padding: 8px 14px; border: 1px solid var(--rule); color: var(--ink-3); text-decoration: none; transition: all .2s; }
.pagination .page-numbers:hover, .pagination .page-numbers.current { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* Thread preview sidebar */
.thread-preview {
  background: var(--paper-2); border: 1px solid var(--rule); padding: 16px;
}
.thread-preview p {
  font-size: 13px; line-height: 1.55; color: var(--ink-2); margin-bottom: 12px;
}
.thread-preview a {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink);
  text-decoration: none; border-bottom: 1px solid var(--ink); padding-bottom: 1px;
  transition: color .2s, border-color .2s;
}
.thread-preview a:hover { color: var(--red); border-color: var(--red); }

/* ─── FOOTER ─── */
.site-footer { background: var(--ink); color: var(--paper); margin-top: 80px; }
.footer-top { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 48px; padding: 56px 48px 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .logo-name { font-size: 22px; color: var(--paper); }
.footer-brand .logo-name span { color: var(--red); }
.footer-brand .logo-tagline { color: rgba(250,248,244,0.35); margin-top: 4px; }
.footer-brand p { font-size: 13px; color: rgba(250,248,244,0.45); line-height: 1.65; margin-top: 16px; }
.footer-col h4 { font-family: 'JetBrains Mono', monospace; font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(250,248,244,0.35); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13px; color: rgba(250,248,244,0.6); text-decoration: none; margin-bottom: 9px; transition: color .2s; }
.footer-col a:hover { color: var(--paper); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding: 20px 48px; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.06em; color: rgba(250,248,244,0.25); }
.footer-social { display: flex; gap: 16px; }
.footer-social a { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(250,248,244,0.35); text-decoration: none; transition: color .2s; }
.footer-social a:hover { color: var(--paper); }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .header-top { padding: 16px 24px; }
  .header-center { display: none; }
  .site-nav { padding: 0 24px; }
  .article-hero, .featured-article, .archive-hero { padding: 40px 24px 32px; }
  .article-layout, .home-layout { grid-template-columns: 1fr; padding: 32px 24px; gap: 40px; }
  .article-sidebar { position: static; }
  .footer-top { grid-template-columns: 1fr 1fr; padding: 40px 24px 32px; gap: 32px; }
  .footer-bottom { padding: 16px 24px; }
}

@media (max-width: 560px) {
  .logo-name { font-size: 22px; }
  .header-actions .btn-x { display: none; }
  .footer-top { grid-template-columns: 1fr; }
  .article-nav { flex-direction: column; }
  .article-nav-item.next { text-align: left; }
}