/* ============================================================
   TECHLOGEMENT — Design System
   Thème : Editorial minimaliste, noir/blanc avec accents rouges
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400;1,700&family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@400;500&display=swap');

:root {
  --noir: #0a0a0a;
  --blanc: #fafaf8;
  --rouge: #c0392b;
  --rouge-hover: #e74c3c;
  --gris-1: #1a1a1a;
  --gris-2: #2d2d2d;
  --gris-3: #555;
  --gris-4: #888;
  --gris-5: #bbb;
  --gris-6: #e8e8e4;
  --gris-7: #f2f2ef;
  --serif: 'Playfair Display', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
  --mono: 'DM Mono', monospace;
  --radius: 2px;
  --shadow: 0 2px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--sans);
  background: var(--blanc);
  color: var(--noir);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: var(--sans); cursor: pointer; border: none; background: none; }

/* ============================================================ SCROLLBAR */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--gris-7); }
::-webkit-scrollbar-thumb { background: var(--gris-5); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--gris-3); }

/* ============================================================ LOADER */
#loader {
  position: fixed; inset: 0; background: var(--noir); z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.4s ease;
}
#loader.hidden { opacity: 0; pointer-events: none; }
.loader-logo { font-family: var(--serif); font-size: 2rem; color: var(--blanc); letter-spacing: -0.02em; }
.loader-logo span { color: var(--rouge); }
.loader-bar {
  position: absolute; bottom: 0; left: 0; height: 3px;
  background: var(--rouge); animation: loadBar 0.8s ease forwards;
}
@keyframes loadBar { from { width: 0; } to { width: 100%; } }

/* ============================================================ HEADER */
header {
  position: sticky; top: 0; z-index: 100;
  background: var(--blanc); border-bottom: 1px solid var(--gris-6);
  backdrop-filter: blur(8px);
}
.header-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  font-family: var(--serif); font-size: 1.5rem; font-weight: 700;
  letter-spacing: -0.02em; display: flex; align-items: center; gap: 2px;
}
.logo-accent { color: var(--rouge); }
.logo sup { font-size: 0.5rem; color: var(--gris-4); font-family: var(--sans); font-weight: 400; vertical-align: super; }
nav { display: flex; gap: 32px; align-items: center; }
nav a {
  font-size: 0.8rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--gris-3);
  transition: color var(--transition); padding: 4px 0;
  border-bottom: 2px solid transparent;
}
nav a:hover, nav a.active { color: var(--noir); border-bottom-color: var(--rouge); }
.header-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--gris-7); border: 1px solid var(--gris-6);
  border-radius: 24px; padding: 6px 14px; width: 200px; transition: width var(--transition);
}
.header-search:focus-within { width: 260px; border-color: var(--gris-5); }
.header-search input { background: none; border: none; outline: none; font-size: 0.85rem; width: 100%; color: var(--noir); }
.header-search svg { color: var(--gris-4); flex-shrink: 0; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--noir); transition: all 0.3s; }

/* ============================================================ TICKER */
.ticker {
  background: var(--noir); color: var(--blanc);
  font-size: 0.75rem; letter-spacing: 0.05em;
  overflow: hidden; white-space: nowrap; padding: 8px 0;
}
.ticker-inner { display: inline-block; animation: ticker 30s linear infinite; }
.ticker-inner:hover { animation-play-state: paused; }
@keyframes ticker { 0% { transform: translateX(100vw); } 100% { transform: translateX(-100%); } }
.ticker-sep { margin: 0 32px; color: var(--rouge); }

/* ============================================================ MAIN LAYOUT */
main { min-height: calc(100vh - 130px); }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 860px; margin: 0 auto; padding: 0 24px; }

/* ============================================================ HERO SECTION */
.hero {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--gris-6);
}
.hero-eyebrow {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--rouge); margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.hero-eyebrow::before { content: ''; display: block; width: 32px; height: 2px; background: var(--rouge); }
.hero h1 {
  font-family: var(--serif); font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900; line-height: 1.05; letter-spacing: -0.03em;
  max-width: 800px; margin-bottom: 24px;
}
.hero h1 em { font-style: italic; color: var(--rouge); }
.hero-sub {
  font-size: 1.1rem; color: var(--gris-3); max-width: 560px;
  line-height: 1.7; margin-bottom: 40px;
}
.hero-stats {
  display: flex; gap: 48px; flex-wrap: wrap;
}
.stat-item { border-left: 3px solid var(--rouge); padding-left: 16px; }
.stat-number {
  font-family: var(--serif); font-size: 2rem; font-weight: 700;
  line-height: 1; color: var(--noir);
}
.stat-label { font-size: 0.75rem; color: var(--gris-4); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.05em; }

/* ============================================================ FEATURED GRID */
.section-header {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 56px 0 32px; border-bottom: 2px solid var(--noir); margin-bottom: 40px;
}
.section-title {
  font-family: var(--serif); font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em;
}
.section-link {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--rouge); display: flex; align-items: center; gap: 6px; transition: gap var(--transition);
}
.section-link:hover { gap: 10px; }

.featured-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--gris-6); border: 1px solid var(--gris-6);
  margin-bottom: 80px;
}
.featured-grid .card:first-child { grid-row: span 2; }

.card {
  background: var(--blanc); padding: 36px; position: relative;
  cursor: pointer; transition: background var(--transition);
  display: flex; flex-direction: column;
}
.card:hover { background: var(--gris-7); }
.card-category {
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; margin-bottom: 16px;
  display: inline-flex; align-items: center; gap: 6px;
}
.card-title {
  font-family: var(--serif); font-weight: 700; line-height: 1.2;
  letter-spacing: -0.02em; margin-bottom: 16px;
  transition: color var(--transition);
}
.card:hover .card-title { color: var(--rouge); }
.card:first-child .card-title { font-size: 2rem; }
.card:not(:first-child) .card-title { font-size: 1.25rem; }
.card-excerpt { font-size: 0.9rem; color: var(--gris-3); line-height: 1.6; flex: 1; margin-bottom: 24px; }
.card-meta {
  display: flex; align-items: center; gap: 16px;
  font-size: 0.75rem; color: var(--gris-4); margin-top: auto;
}
.card-meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gris-5); }
.card-views { display: flex; align-items: center; gap: 4px; }

/* ============================================================ ARTICLES LIST */
.articles-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 32px;
  margin-bottom: 60px;
}
.article-card {
  cursor: pointer; transition: transform var(--transition);
  border-top: 2px solid var(--gris-6); padding-top: 24px;
}
.article-card:hover { transform: translateY(-2px); }
.article-card:hover .article-card-title { color: var(--rouge); }
.article-card-number {
  font-family: var(--mono); font-size: 0.7rem; color: var(--gris-5);
  margin-bottom: 12px;
}
.article-card-category {
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; margin-bottom: 12px;
  display: flex; align-items: center; gap: 6px;
}
.article-card-title {
  font-family: var(--serif); font-size: 1.15rem; font-weight: 700;
  line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 12px;
  transition: color var(--transition);
}
.article-card-excerpt { font-size: 0.85rem; color: var(--gris-3); line-height: 1.6; margin-bottom: 20px; }
.article-card-meta { font-size: 0.73rem; color: var(--gris-4); display: flex; gap: 12px; }

/* ============================================================ CATEGORIES */
.categories-section { padding: 60px 0; background: var(--gris-7); }
.categories-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--gris-6); border: 1px solid var(--gris-6); margin-top: 40px;
}
.cat-card {
  background: var(--blanc); padding: 28px 24px; cursor: pointer;
  transition: background var(--transition); position: relative; overflow: hidden;
}
.cat-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: currentColor; transform: scaleX(0); transition: transform 0.3s;
}
.cat-card:hover { background: var(--noir); color: var(--blanc); }
.cat-card:hover::after { transform: scaleX(1); }
.cat-icon { font-size: 1.75rem; margin-bottom: 12px; display: block; }
.cat-name { font-family: var(--serif); font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.cat-desc { font-size: 0.78rem; color: var(--gris-4); line-height: 1.5; }
.cat-card:hover .cat-desc { color: var(--gris-5); }
.cat-count { font-family: var(--mono); font-size: 0.7rem; color: var(--gris-5); margin-top: 12px; }
.cat-card:hover .cat-count { color: var(--gris-6); }

/* ============================================================ ARTICLE PAGE */
.article-page { padding: 60px 0 100px; }
.article-header { margin-bottom: 48px; padding-bottom: 48px; border-bottom: 1px solid var(--gris-6); }
.back-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gris-4); margin-bottom: 32px; transition: color var(--transition);
  cursor: pointer;
}
.back-btn:hover { color: var(--rouge); }
.article-category-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--rouge); margin-bottom: 20px;
}
.article-title {
  font-family: var(--serif); font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 900; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 24px;
}
.article-excerpt {
  font-size: 1.15rem; color: var(--gris-3); line-height: 1.7; margin-bottom: 32px;
  border-left: 4px solid var(--rouge); padding-left: 20px;
}
.article-meta-bar {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  font-size: 0.8rem; color: var(--gris-4);
}
.article-meta-bar strong { color: var(--noir); }
.meta-sep { color: var(--gris-6); }

.article-body { font-size: 1.05rem; line-height: 1.85; color: var(--gris-1); }
.article-body h2 {
  font-family: var(--serif); font-size: 1.6rem; font-weight: 700;
  letter-spacing: -0.02em; margin: 48px 0 16px; color: var(--noir);
  border-left: 4px solid var(--rouge); padding-left: 16px;
}
.article-body h3 {
  font-family: var(--serif); font-size: 1.2rem; font-weight: 700;
  margin: 32px 0 12px; color: var(--noir);
}
.article-body p { margin-bottom: 24px; }
.article-body strong { color: var(--noir); font-weight: 600; }
.article-body em { font-style: italic; }
.article-body ul, .article-body ol { margin: 16px 0 24px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 4px solid var(--rouge); padding: 16px 20px;
  margin: 32px 0; background: var(--gris-7);
  font-style: italic; color: var(--gris-2);
}
.article-body code {
  font-family: var(--mono); background: var(--gris-7); padding: 2px 6px;
  border-radius: 3px; font-size: 0.9em;
}

/* ============================================================ COMMENTS */
.comments-section { margin-top: 80px; padding-top: 48px; border-top: 2px solid var(--noir); }
.comments-title { font-family: var(--serif); font-size: 1.5rem; font-weight: 700; margin-bottom: 40px; }
.comment-item {
  padding: 24px 0; border-bottom: 1px solid var(--gris-6);
}
.comment-author { font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.comment-date { font-size: 0.75rem; color: var(--gris-4); margin-bottom: 12px; }
.comment-content { font-size: 0.95rem; line-height: 1.7; color: var(--gris-2); }
.comment-form { margin-top: 48px; }
.comment-form h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--gris-3); }
.form-group input, .form-group textarea {
  background: var(--gris-7); border: 1px solid var(--gris-6);
  border-radius: var(--radius); padding: 12px 16px; font-size: 0.9rem;
  font-family: var(--sans); color: var(--noir); outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--rouge); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ============================================================ BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; border-radius: var(--radius);
  transition: all var(--transition); cursor: pointer;
}
.btn-primary { background: var(--rouge); color: var(--blanc); }
.btn-primary:hover { background: var(--rouge-hover); transform: translateY(-1px); }
.btn-outline { border: 1.5px solid var(--noir); color: var(--noir); }
.btn-outline:hover { background: var(--noir); color: var(--blanc); }
.btn-sm { padding: 8px 20px; font-size: 0.75rem; }
.btn-full { width: 100%; justify-content: center; }

/* ============================================================ PAGINATION */
.pagination {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin: 60px 0;
}
.page-btn {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--gris-6); border-radius: var(--radius);
  font-size: 0.85rem; font-weight: 500; cursor: pointer;
  transition: all var(--transition);
}
.page-btn:hover { border-color: var(--noir); }
.page-btn.active { background: var(--noir); color: var(--blanc); border-color: var(--noir); }

/* ============================================================ SEARCH RESULTS */
.search-results { padding: 60px 0; }
.search-query {
  font-family: var(--serif); font-size: 1.3rem; margin-bottom: 8px;
}
.search-query em { color: var(--rouge); font-style: normal; font-weight: 700; }
.search-count { font-size: 0.85rem; color: var(--gris-4); margin-bottom: 40px; }
.no-results {
  text-align: center; padding: 80px 0; color: var(--gris-4);
}
.no-results .no-results-icon { font-size: 4rem; margin-bottom: 16px; }
.no-results h3 { font-family: var(--serif); font-size: 1.4rem; color: var(--gris-3); margin-bottom: 8px; }

/* ============================================================ ADMIN PANEL */
.admin-panel { padding: 60px 0 100px; }
.admin-header { margin-bottom: 48px; }
.admin-title { font-family: var(--serif); font-size: 2rem; font-weight: 900; letter-spacing: -0.03em; }
.admin-subtitle { color: var(--gris-4); margin-top: 8px; }
.admin-tabs { display: flex; gap: 0; border-bottom: 2px solid var(--gris-6); margin-bottom: 40px; }
.admin-tab {
  padding: 12px 24px; font-size: 0.82rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; cursor: pointer; border-bottom: 3px solid transparent;
  margin-bottom: -2px; transition: all var(--transition); color: var(--gris-4);
}
.admin-tab.active { border-bottom-color: var(--rouge); color: var(--noir); }
.admin-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }
.stat-card {
  background: var(--gris-7); border: 1px solid var(--gris-6); padding: 28px;
  border-radius: var(--radius);
}
.stat-card-number { font-family: var(--serif); font-size: 2.5rem; font-weight: 900; margin-bottom: 4px; }
.stat-card-label { font-size: 0.75rem; color: var(--gris-4); text-transform: uppercase; letter-spacing: 0.05em; }
.admin-form { max-width: 720px; }
.admin-form .form-group { margin-bottom: 20px; }
.admin-form input, .admin-form textarea, .admin-form select {
  background: var(--blanc); border: 1.5px solid var(--gris-6);
  border-radius: var(--radius); padding: 12px 16px; font-size: 0.9rem;
  font-family: var(--sans); color: var(--noir); outline: none; width: 100%;
  transition: border-color var(--transition);
}
.admin-form input:focus, .admin-form textarea:focus, .admin-form select:focus { border-color: var(--rouge); }
.admin-form textarea { min-height: 280px; resize: vertical; }
.articles-table { width: 100%; border-collapse: collapse; }
.articles-table th {
  text-align: left; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--gris-4); padding: 12px 16px;
  border-bottom: 2px solid var(--gris-6);
}
.articles-table td {
  padding: 16px; border-bottom: 1px solid var(--gris-6); font-size: 0.88rem;
  vertical-align: middle;
}
.articles-table tr:hover td { background: var(--gris-7); }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 99px; font-size: 0.68rem; font-weight: 600;
}
.badge-featured { background: #fef3c7; color: #d97706; }
.badge-normal { background: var(--gris-7); color: var(--gris-4); }

/* ============================================================ LOGIN */
.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--noir);
}
.login-box { width: 100%; max-width: 400px; padding: 48px; }
.login-logo { font-family: var(--serif); font-size: 2rem; color: var(--blanc); margin-bottom: 8px; }
.login-logo span { color: var(--rouge); }
.login-sub { color: var(--gris-4); font-size: 0.85rem; margin-bottom: 40px; }
.login-box input {
  width: 100%; background: var(--gris-2); border: 1px solid var(--gris-2); color: var(--blanc);
  padding: 14px 18px; border-radius: var(--radius); font-size: 0.95rem; outline: none; margin-bottom: 16px;
  font-family: var(--sans); transition: border-color var(--transition);
}
.login-box input:focus { border-color: var(--rouge); }
.login-error { color: var(--rouge); font-size: 0.82rem; margin-top: 8px; }

/* ============================================================ FOOTER */
footer { background: var(--noir); color: var(--blanc); padding: 72px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 56px; }
.footer-brand .logo { font-size: 1.75rem; color: var(--blanc); margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; color: var(--gris-5); line-height: 1.7; max-width: 280px; }
.footer-col h4 {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--gris-5); margin-bottom: 20px;
}
.footer-col a {
  display: block; font-size: 0.85rem; color: var(--gris-5); margin-bottom: 10px;
  transition: color var(--transition); cursor: pointer;
}
.footer-col a:hover { color: var(--blanc); }
.footer-bottom {
  padding-top: 32px; border-top: 1px solid var(--gris-2);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.78rem; color: var(--gris-5);
}
.footer-bottom a { color: var(--rouge); }

/* ============================================================ TOAST */
.toast {
  position: fixed; bottom: 32px; right: 32px; z-index: 9999;
  background: var(--noir); color: var(--blanc); padding: 14px 24px;
  border-radius: var(--radius); font-size: 0.88rem; box-shadow: var(--shadow-lg);
  transform: translateY(100px); opacity: 0; transition: all 0.3s ease;
  border-left: 4px solid var(--rouge);
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-left-color: #27ae60; }
.toast.error { border-left-color: var(--rouge); }

/* ============================================================ UTILITIES */
.hidden { display: none !important; }
.text-rouge { color: var(--rouge); }
.spinner {
  width: 20px; height: 20px; border: 2px solid var(--gris-6);
  border-top-color: var(--rouge); border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton {
  background: linear-gradient(90deg, var(--gris-7) 25%, var(--gris-6) 50%, var(--gris-7) 75%);
  background-size: 200% 100%; animation: skeleton 1.2s ease-in-out infinite;
  border-radius: var(--radius);
}
@keyframes skeleton { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ============================================================ RESPONSIVE */
@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: 1fr; }
  .featured-grid .card:first-child { grid-row: span 1; }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  nav { display: none; }
  nav.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--blanc); border-bottom: 1px solid var(--gris-6); padding: 16px 24px; gap: 16px; }
  .menu-toggle { display: flex; }
  .header-search { display: none; }
  .articles-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .admin-stats { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .hero-stats { gap: 24px; }
}
@media (max-width: 480px) {
  .categories-grid { grid-template-columns: 1fr; }
}