/* ═══════════════════════════════════════════════════════
   Portfolio – Hocine Benbara
   Spécialiste en qualité logicielle
   styles.css
═══════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════
   THEME VARIABLES
═══════════════════════════════════════════ */
[data-theme="dark"] {
  --bg: #080c10;
  --surface: #0d1117;
  --surface2: #161b22;
  --border: #21262d;
  --text: #e6edf3;
  --muted: #7d8590;
  --accent: #00e5a0;
  --accent2: #3b82f6;
  --accent3: #f59e0b;
  --tag-bg: rgba(0,229,160,0.08);
  --tag-border: rgba(0,229,160,0.25);
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --grid-color: rgba(0,229,160,0.03);
  --nav-bg: rgba(8,12,16,0.88);
}
[data-theme="light"] {
  --bg: #f6f8fa;
  --surface: #ffffff;
  --surface2: #f0f2f5;
  --border: #d0d7de;
  --text: #1c2128;
  --muted: #57606a;
  --accent: #00a372;
  --accent2: #2563eb;
  --accent3: #d97706;
  --tag-bg: rgba(0,163,114,0.08);
  --tag-border: rgba(0,163,114,0.28);
  --shadow: 0 2px 16px rgba(0,0,0,0.07);
  --grid-color: rgba(0,163,114,0.04);
  --nav-bg: rgba(246,248,250,0.92);
}

/* ═══════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Syne', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
  transition: background 0.35s, color 0.35s;
}

/* Noise overlay – dark only */
[data-theme="dark"] body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 1000; opacity: 0.35;
}

/* Grid background */
.grid-bg {
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none; z-index: 0;
}

/* ═══════════════════════════════════════════
   NAVIGATION
═══════════════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.85rem 2.5rem;
  background: var(--nav-bg);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background 0.35s, border-color 0.35s;
}
.nav-logo {
  font-family: 'Space Mono', monospace;
  font-size: 0.82rem; color: var(--accent); letter-spacing: 0.1em;
}
.nav-links { display: flex; gap: 1.6rem; list-style: none; align-items: center; }
.nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; color: var(--muted); text-decoration: none;
  letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-controls { display: flex; align-items: center; gap: 0.5rem; }
.ctrl-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; padding: 0.28rem 0.65rem;
  border-radius: 5px; border: 1px solid var(--border);
  background: var(--surface2); color: var(--muted);
  cursor: pointer; transition: all 0.2s; letter-spacing: 0.05em;
  min-width: 36px; text-align: center;
}
.ctrl-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--tag-bg); }

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding: 8rem 2.5rem 4rem;
  max-width: 1200px; margin: 0 auto;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }

.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.77rem; color: var(--accent);
  letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 0.75rem;
  opacity: 0; animation: fadeUp 0.6s 0.2s forwards;
}
.hero-eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--accent); flex-shrink: 0; }

.hero-name {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -0.03em; margin-bottom: 0.5rem;
  opacity: 0; animation: fadeUp 0.6s 0.35s forwards;
}
.hero-name span {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.hero-title {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 600; color: var(--muted); margin-bottom: 2rem;
  opacity: 0; animation: fadeUp 0.6s 0.5s forwards;
}

.hero-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.87rem; color: var(--muted);
  max-width: 560px; line-height: 1.9; margin-bottom: 2.5rem;
  opacity: 0; animation: fadeUp 0.6s 0.65s forwards;
}

.hero-tags {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin-bottom: 3rem;
  opacity: 0; animation: fadeUp 0.6s 0.8s forwards;
}

.hero-cta {
  display: flex; gap: 1rem; flex-wrap: wrap;
  opacity: 0; animation: fadeUp 0.6s 0.95s forwards;
}

/* Glow orbs – dark only */
[data-theme="dark"] .orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); pointer-events: none; z-index: 0;
}
[data-theme="dark"] .orb-1 {
  width: 500px; height: 500px;
  background: rgba(0,229,160,0.05);
  top: -100px; right: -100px;
  animation: pulse 8s ease-in-out infinite;
}
[data-theme="dark"] .orb-2 {
  width: 300px; height: 300px;
  background: rgba(59,130,246,0.04);
  bottom: 50px; left: 200px;
  animation: pulse 10s ease-in-out infinite reverse;
}
[data-theme="light"] .orb { display: none; }

/* ═══════════════════════════════════════════
   TAGS & BUTTONS
═══════════════════════════════════════════ */
.tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.69rem; padding: 0.27rem 0.68rem;
  border-radius: 4px;
  background: var(--tag-bg); border: 1px solid var(--tag-border);
  color: var(--accent); letter-spacing: 0.04em;
}
.tag.blue {
  background: rgba(59,130,246,0.08); border-color: rgba(59,130,246,0.3); color: var(--accent2);
}
.tag.amber {
  background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); color: var(--accent3);
}

.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.77rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.8rem 1.7rem;
  background: var(--accent); color: #080c10;
  border: none; border-radius: 6px; cursor: pointer;
  text-decoration: none; font-weight: 700;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,229,160,0.25); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.77rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.8rem 1.7rem;
  background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  cursor: pointer; text-decoration: none; transition: border-color 0.2s, color 0.2s;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ═══════════════════════════════════════════
   SECTIONS
═══════════════════════════════════════════ */
.section {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto;
  padding: 6rem 2.5rem;
}
.section-header {
  display: flex; align-items: center; gap: 1rem; margin-bottom: 3.5rem;
}
.section-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.69rem; color: var(--accent); opacity: 0.7;
}
.section-title { font-size: 1.75rem; font-weight: 800; letter-spacing: -0.02em; }
.section-line { flex: 1; height: 1px; background: var(--border); }

/* ═══════════════════════════════════════════
   STATUS DOT
═══════════════════════════════════════════ */
.status-dot {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.69rem; color: var(--accent); margin-bottom: 0.75rem;
}
.dot {
  width: 7px; height: 7px;
  background: var(--accent); border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}

/* ═══════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════ */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start;
}
.about-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem; color: var(--muted); line-height: 2;
}
.about-text p { margin-bottom: 1.2rem; }
.about-text strong { color: var(--accent); font-weight: 500; }

.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.5rem;
  box-shadow: var(--shadow); transition: border-color 0.2s;
}
.stat-card:hover { border-color: var(--accent); }
.stat-num {
  font-size: 2rem; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 0.4rem;
}
.stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.67rem; color: var(--muted); letter-spacing: 0.05em; text-transform: uppercase;
}

/* ═══════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════ */
.skills-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.skill-group {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.75rem;
  box-shadow: var(--shadow); transition: border-color 0.25s, transform 0.25s;
}
.skill-group:hover { border-color: var(--accent); transform: translateY(-3px); }
.skill-group-icon { font-size: 1.5rem; margin-bottom: 1rem; }
.skill-group-title { font-size: 0.95rem; font-weight: 700; margin-bottom: 1rem; }
.skill-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem; padding: 0.22rem 0.55rem;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 4px; color: var(--muted);
}

/* ═══════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════ */
.projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.project-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  box-shadow: var(--shadow); transition: border-color 0.25s, transform 0.25s;
}
.project-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.project-card.featured { grid-column: 1/-1; display: grid; grid-template-columns: 1fr 1fr; }

.project-visual {
  background: var(--surface2); padding: 2rem;
  display: flex; align-items: center; justify-content: center;
  min-height: 200px; position: relative; overflow: hidden;
}
.project-visual::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,229,160,0.04), transparent);
}

.code-preview {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.67rem; color: var(--muted);
  line-height: 1.9; text-align: left;
  z-index: 1; position: relative;
}

.project-body { padding: 2rem; }
.project-type {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.67rem; color: var(--accent);
  letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.6rem;
}
.project-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.75rem; letter-spacing: -0.01em; }
.project-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.76rem; color: var(--muted); line-height: 1.85; margin-bottom: 1.5rem;
}
.project-stack { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }
.project-links { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.link-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.69rem; letter-spacing: 0.06em;
  padding: 0.42rem 1rem; border-radius: 5px;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.4rem;
  transition: all 0.2s;
}
.link-btn-primary {
  background: var(--tag-bg); border: 1px solid var(--tag-border); color: var(--accent);
}
.link-btn-primary:hover { background: var(--accent); color: #080c10; border-color: var(--accent); }
.link-btn-secondary {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
}
.link-btn-secondary:hover { border-color: var(--muted); color: var(--text); }

/* ═══════════════════════════════════════════
   CODE BLOCKS
═══════════════════════════════════════════ */
.code-block {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow);
}
.code-tabs {
  display: flex; border-bottom: 1px solid var(--border);
  background: var(--surface2); overflow-x: auto;
}
.code-tab {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.69rem; padding: 0.65rem 1.1rem;
  color: var(--muted); cursor: pointer;
  border: none; background: none; white-space: nowrap;
  transition: color 0.2s;
  border-bottom: 2px solid transparent; letter-spacing: 0.03em;
}
.code-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.code-tab:hover:not(.active) { color: var(--text); }

.code-content { display: none; padding: 1.5rem; max-height: 390px; overflow-y: auto; }
.code-content.active { display: block; }
.code-content pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem; line-height: 1.9;
  color: var(--muted); white-space: pre-wrap; word-break: break-word;
}

/* Syntax highlighting */
.kw  { color: #f97583; }
.fn  { color: #b392f0; }
.str { color: #9ecbff; }
.cm  { color: #6a737d; font-style: italic; }
.op  { color: var(--accent); }
.cls { color: #f0c27f; }
.num { color: #79b8ff; }
[data-theme="light"] .kw  { color: #d73a49; }
[data-theme="light"] .fn  { color: #6f42c1; }
[data-theme="light"] .str { color: #032f62; }
[data-theme="light"] .cm  { color: #6a737d; }
[data-theme="light"] .cls { color: #e36209; }
[data-theme="light"] .num { color: #005cc5; }

/* ═══════════════════════════════════════════
   GUIDE QA
═══════════════════════════════════════════ */
.guide-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow);
}
.guide-header {
  background: linear-gradient(135deg, var(--tag-bg), rgba(59,130,246,0.05));
  border-bottom: 1px solid var(--border);
  padding: 2.5rem; display: flex; align-items: center; gap: 2rem;
}
.guide-icon {
  width: 64px; height: 64px;
  background: var(--tag-bg); border: 1px solid var(--tag-border);
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; flex-shrink: 0;
}
.guide-meta h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.4rem; }
.guide-meta p { font-family: 'JetBrains Mono', monospace; font-size: 0.74rem; color: var(--muted); }

.guide-chapters { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; padding: 2rem; }
.chapter {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 8px; padding: 1.2rem; transition: border-color 0.2s;
}
.chapter:hover { border-color: var(--accent); }
.chapter-num { font-family: 'JetBrains Mono', monospace; font-size: 0.62rem; color: var(--accent); letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.chapter-title { font-size: 0.85rem; font-weight: 600; margin-bottom: 0.4rem; }
.chapter-desc { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--muted); line-height: 1.6; }

.guide-checklist { padding: 0 2rem 2rem; }
.guide-checklist h4 {
  font-size: 0.78rem; font-weight: 600; margin-bottom: 1rem;
  color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em;
}
.checklist-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.check-item {
  font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--muted);
  display: flex; align-items: flex-start; gap: 0.5rem; line-height: 1.5;
}
.check-item::before { content: '☐'; color: var(--accent); flex-shrink: 0; }

.guide-footer {
  padding: 1.5rem 2rem; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.guide-quote {
  font-family: 'JetBrains Mono', monospace; font-size: 0.76rem;
  color: var(--muted); font-style: italic; max-width: 500px;
}
.guide-quote strong { color: var(--accent); font-style: normal; }

/* ═══════════════════════════════════════════
   TRAILHEAD
═══════════════════════════════════════════ */
.trailhead-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden; box-shadow: var(--shadow);
}
.th-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.75rem 2rem; border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(0,161,224,0.06), transparent);
}
.th-brand {
  display: flex; align-items: center; gap: 0.75rem;
}
.th-platform {
  font-family: 'Space Mono', monospace;
  font-size: 0.9rem; font-weight: 700; color: var(--text);
  letter-spacing: 0.03em;
}
.th-stats {
  display: flex; align-items: center; gap: 3rem;
  padding: 2rem 2.5rem; border-bottom: 1px solid var(--border);
}
.th-rank-badge {
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
}
.th-mountain {
  position: relative; width: 72px; height: 60px;
}
.th-peak {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-bottom: 28px solid #f59e0b;
}
.th-mountain-body {
  position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 36px solid transparent;
  border-right: 36px solid transparent;
  border-bottom: 38px solid #3b82f6;
}
.th-rank-label {
  font-family: 'Space Mono', monospace;
  font-size: 0.62rem; letter-spacing: 0.15em;
  color: var(--accent3); font-weight: 700;
}
.th-stat-group {
  display: flex; gap: 3rem;
}
.th-stat-item { text-align: center; }
.th-stat-num {
  font-size: 1.8rem; font-weight: 800;
  color: #00A1E0; line-height: 1; margin-bottom: 0.3rem;
}
.th-stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.67rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em;
}
.th-badges-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.1em;
  padding: 1.5rem 2rem 0.75rem;
}
.th-badges {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1rem; padding: 0 2rem 2rem;
}
.th-badge-item {
  display: flex; flex-direction: column; align-items: center;
  gap: 0.6rem; text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.67rem; color: var(--muted); line-height: 1.4;
  padding: 1rem 0.5rem;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 10px; transition: border-color 0.2s, transform 0.2s;
}
.th-badge-item:hover { border-color: #00A1E0; transform: translateY(-2px); }
.th-badge-icon {
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; color: white; font-weight: 700;
  flex-shrink: 0;
}
.th-footer {
  padding: 1rem 2rem 1.5rem; text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; color: var(--muted);
  border-top: 1px solid var(--border);
}

/* ═══════════════════════════════════════════
   SIDE PROJECTS
═══════════════════════════════════════════ */
.side-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.side-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.75rem;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 0.75rem;
  transition: border-color 0.25s, transform 0.25s;
}
.side-card:hover { border-color: var(--accent2); transform: translateY(-3px); }
.side-card-icon { font-size: 2rem; }
.side-card-type {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.64rem; color: var(--accent2);
  letter-spacing: 0.1em; text-transform: uppercase;
}
.side-card-title { font-size: 1rem; font-weight: 700; }
.side-card-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem; color: var(--muted); line-height: 1.78; flex: 1;
}

/* ═══════════════════════════════════════════
   ARTICLES
═══════════════════════════════════════════ */
.articles-grid { display: grid; gap: 1rem; }
.article-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.75rem;
  display: grid; grid-template-columns: auto 1fr auto;
  gap: 1.5rem; align-items: center;
  transition: border-color 0.2s, transform 0.2s;
  text-decoration: none; color: inherit; box-shadow: var(--shadow);
}
.article-card:hover { border-color: var(--accent); transform: translateX(4px); }
.article-date {
  font-family: 'JetBrains Mono', monospace; font-size: 0.67rem; color: var(--muted);
  writing-mode: vertical-rl; transform: rotate(180deg); letter-spacing: 0.08em;
}
.article-title { font-size: 1rem; font-weight: 600; margin-bottom: 0.4rem; }
.article-desc { font-family: 'JetBrains Mono', monospace; font-size: 0.73rem; color: var(--muted); }
.article-arrow { color: var(--muted); font-size: 1.2rem; transition: color 0.2s, transform 0.2s; }
.article-card:hover .article-arrow { color: var(--accent); transform: translateX(4px); }

/* ═══════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════ */
.contact-inner {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 3.5rem;
  text-align: center; position: relative; overflow: hidden; box-shadow: var(--shadow);
}
.contact-inner::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.contact-title { font-size: 2.2rem; font-weight: 800; margin-bottom: 1rem; letter-spacing: -0.02em; }
.contact-subtitle {
  font-family: 'JetBrains Mono', monospace; font-size: 0.83rem; color: var(--muted);
  margin: 0 auto 2.5rem; max-width: 500px; line-height: 1.85;
}
.contact-links { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 2.5rem; text-align: center; position: relative; z-index: 1;
}
footer p { font-family: 'JetBrains Mono', monospace; font-size: 0.69rem; color: var(--muted); }
footer span { color: var(--accent); }

/* ═══════════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%,100% { transform: scale(1); opacity: 0.5; }
  50%      { transform: scale(1.15); opacity: 1; }
}
@keyframes blink {
  0%,100% { opacity: 1; }
  50%      { opacity: 0.2; }
}
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ═══════════════════════════════════════════
   i18n HELPERS
═══════════════════════════════════════════ */
[data-lang="en"] .fr { display: none; }
[data-lang="fr"] .en { display: none; }

/* ═══════════════════════════════════════════
   SCROLLBAR
═══════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ═══════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════ */
@media (max-width: 960px) {
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .side-grid    { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  nav { padding: 0.85rem 1.25rem; }
  .nav-links { display: none; }
  .hero { padding: 7rem 1.25rem 3rem; }
  .section { padding: 4rem 1.25rem; }
  .about-grid, .skills-grid, .projects-grid, .side-grid { grid-template-columns: 1fr; }
  .project-card.featured { grid-template-columns: 1fr; }
  .project-card.featured .project-visual { display: none; }
  .guide-chapters, .checklist-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .contact-inner { padding: 2rem; }
  .article-card { grid-template-columns: 1fr auto; }
  .article-date { display: none; }
  .th-badges { grid-template-columns: 1fr 1fr; }
  .th-stats { flex-direction: column; gap: 1.5rem; align-items: flex-start; }
  .th-stat-group { gap: 1.5rem; }
  .guide-footer { flex-direction: column; align-items: flex-start; }
}