/* ==========================================================================
   NetSecure Consulting — Blog
   Charte alignée sur netsecureconsulting.tech : bleu-nuit profond, accent
   cyan unique (#22e2e2), typographie sans-serif en gras pour les titres.
   Signature du blog : cartes en forme de trames réseau (SRC / DST / PROTO).
   ========================================================================== */

:root {
  /* Couleurs — reprises de la charte netsecureconsulting.tech */
  --bg: #070f1a;
  --bg-elevated: #0b1a26;
  --surface: #0d1f2c;
  --surface-hover: #112635;
  --border: #163244;
  --border-strong: #1c4054;

  --text: #eef7fb;
  --text-muted: #9aa7af;
  --text-faint: #647680;

  --accent: #22e2e2;
  --accent-dim: #17a2b8;
  --cyan: #22e2e2;
  --cyan-dim: #17a2b8;
  --danger: #ff5c5c;
  --success: #4fd18f;

  /* Typo — sans-serif en gras pour les titres, comme le site principal */
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-label: 'IBM Plex Mono', var(--font-mono);

  /* Rythme */
  --radius: 3px;
  --radius-lg: 6px;
  --max-width: 1180px;
  --header-h: 72px;
}

@media (prefers-color-scheme: light) {
  :root { color-scheme: dark; }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(34, 226, 226, 0.07), transparent 40%),
    radial-gradient(circle at 88% 0%, rgba(23, 162, 184, 0.06), transparent 35%);
  background-attachment: fixed;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--accent); }

img { max-width: 100%; display: block; }

::selection { background: var(--accent); color: #041418; }

/* Focus visible — accessibilité, un ingénieur sécurité l'exige */
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- Typo ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-body);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 .6em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; color: var(--text); }
.lede { color: var(--text-muted); font-size: 1.1rem; }

.eyebrow {
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: .5em;
}
.eyebrow::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--accent);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 72px 0; }
.section--tight { padding: 40px 0; }
.section--alt { background: var(--bg-elevated); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(11, 15, 26, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}
.brand-mark { height: 32px; width: auto; flex-shrink: 0; }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 1.08rem;
}
.brand-text small {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: .68rem;
  color: var(--accent);
  letter-spacing: .02em;
  margin-top: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  color: var(--text-muted);
  font-size: .92rem;
  font-weight: 500;
  position: relative;
  padding: 8px 4px;
}
.nav a:hover { color: var(--text); }
.nav a.active {
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 8px 14px;
}

.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav { position: fixed; inset: var(--header-h) 0 0 0; background: var(--bg); flex-direction: column;
         padding: 28px 24px; gap: 20px; transform: translateX(100%); transition: transform .25s ease; }
  .nav.is-open { transform: translateX(0); }
  .nav-toggle { display: inline-flex; background: none; border: 1px solid var(--border); color: var(--text);
                border-radius: var(--radius); padding: 8px 10px; cursor: pointer; }
}

/* ---------- Boutons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: .92rem;
  font-weight: 600;
  letter-spacing: 0;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  cursor: pointer;
  transition: all .15s ease;
  background: transparent;
  color: var(--text);
}

.btn--primary { background: var(--accent); color: #04191c; border-color: var(--accent); }
.btn--primary:hover { background: #4ceded; border-color: #4ceded; box-shadow: 0 0 0 3px rgba(34,226,226,.18); }

.btn--ghost { border-color: var(--accent); color: var(--accent); }
.btn--ghost:hover { background: rgba(34,226,226,.08); border-color: var(--accent); color: var(--accent); }

.btn--block { width: 100%; justify-content: center; }

/* ---------- Hero ---------- */

.hero {
  padding: 88px 0 64px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero h1 { margin: .3em 0 .4em; }
.hero h1 .accent { color: var(--accent); }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

/* Terminal de poignée de main réseau — élément signature du hero */
.handshake {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,.6);
}
.handshake__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-label);
  font-size: .72rem;
  color: var(--text-faint);
}
.handshake__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.handshake__body {
  padding: 20px 18px;
  font-family: var(--font-mono);
  font-size: .84rem;
  line-height: 1.9;
  color: var(--text-muted);
}
.handshake__body .line-ok { color: var(--success); }
.handshake__body .line-amber { color: var(--accent); }
.handshake__body .line-cyan { color: var(--cyan); }
.handshake__cursor {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--accent);
  vertical-align: middle;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .handshake__cursor { animation: none; }
}

/* ---------- Trame réseau : signature card (articles / labs / vidéos) ---------- */

.frame-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color .15s ease, transform .15s ease;
  height: 100%;
}
.frame-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }

.frame-card__header {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  font-family: var(--font-label);
  font-size: .64rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-faint);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.frame-card__field { padding: 8px 10px; border-right: 1px solid var(--border); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.frame-card__field:last-child { border-right: none; }
.frame-card__field b { display: block; color: var(--text-muted); font-weight: 500; font-size: .68rem; margin-top: 1px; text-transform: none; letter-spacing: 0; }
.frame-card__field span { color: var(--text-faint); }

.frame-card__media { aspect-ratio: 16/9; background: var(--bg-elevated); border-bottom: 1px solid var(--border); overflow: hidden; }
.frame-card__media img { width: 100%; height: 100%; object-fit: cover; }
.frame-card__media--placeholder {
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); color: var(--text-faint); font-size: .8rem;
  background:
    repeating-linear-gradient(135deg, transparent, transparent 8px, rgba(255,255,255,.02) 8px, rgba(255,255,255,.02) 9px);
}

.frame-card__body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.frame-card__title { font-size: 1.08rem; margin: 0; }
.frame-card__title a { color: var(--text); }
.frame-card__title a:hover { color: var(--accent); }
.frame-card__excerpt { color: var(--text-muted); font-size: .92rem; margin: 0; flex: 1; }

.frame-card__footer {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-label); font-size: .74rem; color: var(--text-faint);
  margin-top: 4px;
}

.badge {
  display: inline-block;
  font-family: var(--font-label);
  font-size: .68rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 100px;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
}
.badge--info { color: var(--cyan); border-color: var(--cyan-dim); }
.badge--warn { color: var(--accent); border-color: var(--accent-dim); }
.badge--danger { color: var(--danger); border-color: #7a2f2f; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }

/* ---------- Section headers ---------- */

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; margin-bottom: 36px; flex-wrap: wrap;
}
.section-head h2 { margin: .3em 0 0; }
.section-head .see-all { font-family: var(--font-label); font-size: .82rem; }

/* ---------- Formulaires ---------- */

.form-field { margin-bottom: 18px; }
.form-field label {
  display: block; font-family: var(--font-label); font-size: .78rem;
  color: var(--text-muted); margin-bottom: 6px; letter-spacing: .02em;
}
.form-field input, .form-field textarea, .form-field select {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 12px 14px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .95rem;
  transition: border-color .15s ease;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  border-color: var(--cyan);
  outline: none;
}
.form-field .help { font-size: .78rem; color: var(--text-faint); margin-top: 5px; }
.form-field .errorlist { list-style: none; padding: 0; margin: 6px 0 0; color: var(--danger); font-size: .82rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 620px) { .form-row { grid-template-columns: 1fr; } }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.alert {
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--success);
  color: var(--success);
  background: rgba(79, 209, 143, .08);
  font-size: .9rem;
  margin-bottom: 24px;
  font-family: var(--font-label);
}
.alert--error { border-color: var(--danger); color: var(--danger); background: rgba(255,92,92,.08); }

/* ---------- Commentaires ---------- */

.comment {
  border-left: 2px solid var(--border-strong);
  padding: 4px 0 4px 18px;
  margin-bottom: 22px;
}
.comment__meta { font-family: var(--font-label); font-size: .74rem; color: var(--text-faint); margin-bottom: 6px; }
.comment__meta b { color: var(--text-muted); }
.comment__body { color: var(--text); font-size: .92rem; }

/* ---------- Article detail ---------- */

.article-header { padding: 56px 0 32px; border-bottom: 1px solid var(--border); }
.article-meta {
  display: flex; gap: 18px; flex-wrap: wrap;
  font-family: var(--font-label); font-size: .78rem; color: var(--text-faint);
  margin: 18px 0 0;
}
.article-body { max-width: 760px; margin: 0 auto; padding-top: 48px; font-size: 1.02rem; }
.article-body h2 { margin-top: 1.6em; }
.article-body pre {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px; overflow-x: auto;
  font-family: var(--font-mono); font-size: .85rem; color: var(--cyan);
}
.article-body code { font-family: var(--font-mono); color: var(--accent); }
.article-body blockquote {
  border-left: 3px solid var(--accent); margin: 1.4em 0; padding: 4px 0 4px 18px;
  color: var(--text-muted); font-style: italic;
}

/* ---------- Timeline (à propos / parcours) ---------- */

.timeline { position: relative; padding-left: 28px; border-left: 1px solid var(--border-strong); }
.timeline-item { position: relative; padding-bottom: 34px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ''; position: absolute; left: -33px; top: 4px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px var(--bg), 0 0 10px var(--accent);
}
.timeline-item .date { font-family: var(--font-label); font-size: .75rem; color: var(--accent); }
.timeline-item h3 { margin: .3em 0 .3em; }
.timeline-item p { color: var(--text-muted); margin: 0; }

.skill-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; margin-top: 8px; }
.skill-chip {
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 10px 12px; font-family: var(--font-label); font-size: .78rem; color: var(--text-muted);
  text-align: center;
}

/* ---------- Footer ---------- */

.site-footer { border-top: 1px solid var(--border); padding: 48px 0 32px; background: var(--bg-elevated); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }
.footer-grid h4 { font-size: .82rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .08em; }
.footer-grid a { color: var(--text-faint); display: block; margin-bottom: 8px; font-size: .9rem; }
.footer-grid a:hover { color: var(--cyan); }
.footer-bottom {
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-family: var(--font-label); font-size: .74rem; color: var(--text-faint);
}

/* ---------- Pagination ---------- */

.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; font-family: var(--font-label); font-size: .85rem; }
.pagination a, .pagination span {
  padding: 8px 14px; border: 1px solid var(--border-strong); border-radius: var(--radius); color: var(--text-muted);
}
.pagination a:hover { border-color: var(--cyan); color: var(--cyan); }
.pagination .current { color: var(--accent); border-color: var(--accent-dim); }

/* ---------- Login / espace privé ---------- */

.auth-shell {
  min-height: calc(100vh - var(--header-h));
  display: flex; align-items: center; justify-content: center;
  padding: 48px 24px;
}
.auth-card { width: 100%; max-width: 420px; }
.auth-card .eyebrow { margin-bottom: 14px; }

.dashboard-header { border-bottom: 1px solid var(--border); padding: 48px 0 32px; }
.private-list { display: flex; flex-direction: column; gap: 16px; }
.private-item {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 18px 20px; flex-wrap: wrap;
}
.private-item h3 { margin: 0 0 4px; font-size: 1rem; }
.private-item p { margin: 0; color: var(--text-muted); font-size: .88rem; }

/* Utilitaires */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.muted { color: var(--text-muted); }
.hidden { display: none; }

/* ---------- Sélecteur de langue ---------- */

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-label);
  font-size: .8rem;
  color: var(--text-faint);
}
.lang-switch a { color: var(--text-muted); padding: 4px 2px; }
.lang-switch a.active { color: var(--accent); font-weight: 600; }
.lang-switch a:hover { color: var(--text); }
.lang-switch__sep { color: var(--border-strong); }

@media (max-width: 860px) {
  .lang-switch { margin: 8px 0; }
}

/* ---------- Réseaux sociaux ---------- */

.social-links {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  transition: all .15s ease;
}
.social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34,226,226,.12);
}