:root {
  --navy: #09023F;
  --navy-deep: #04011f;
  --cyan: #00A2E9;
  --cyan-pale: #D9F1FC;
  --surface: #F5F5F7;
  --text-secondary: #787495;
  --white: #ffffff;
  --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.5;
}

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

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: var(--white);
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(9,2,63,0.08);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-link { display: flex; align-items: center; }
.logo-link svg { height: 39px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.main-nav ul {
  display: flex;
  gap: 32px;
  list-style: none;
}

.main-nav ul a {
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  color: var(--navy);
  position: relative;
  padding: 4px 0;
}

.main-nav ul a[aria-current="page"] {
  color: var(--cyan);
}

.main-nav ul a:hover,
.main-nav ul a:focus-visible {
  color: var(--cyan);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border: 1.5px solid transparent;
  white-space: nowrap;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}
.btn-primary:hover, .btn-primary:focus-visible { background: var(--cyan); color: var(--navy); }

.btn-ghost {
  border-color: rgba(9,2,63,0.2);
  color: var(--navy);
}
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--navy); }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- Hero (per-page) ---------- */
.page-hero {
  padding: 72px 0 56px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--white) 100%);
  border-bottom: 1px solid rgba(9,2,63,0.06);
}

.eyebrow {
  font-family: 'Orbitron', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 14px;
  display: inline-block;
}

.page-hero h1 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.01em;
  max-width: 18ch;
  margin-bottom: 16px;
}

.page-hero .lead {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 60ch;
}

/* ---------- Sections ---------- */
section { padding: 64px 0; }
section.alt { background: var(--surface); }

.section-head { max-width: 640px; margin-bottom: 40px; }
.section-head.tight { margin-bottom: 12px; }
.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-head p { color: var(--text-secondary); font-size: 16px; }

.bio-text {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
  max-width: none;
  margin-bottom: 40px;
}

.bio-paragraphs p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 18px;
}
.bio-paragraphs p:last-child { margin-bottom: 32px; }

.company-name {
  color: #3A3A3A;
  font-weight: 700;
}

.parcours-title {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
}

.timeline-spaced { margin-top: 32px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--text-secondary); text-decoration: none; font-weight: 600; }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb .current { color: var(--navy); font-weight: 600; }

.placeholder-note {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #a8621b;
  background: #fff2e2;
  border: 1px solid #f3d3a8;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* Card grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid rgba(9,2,63,0.08);
  border-radius: var(--radius);
  padding: 28px;
}
section.alt .card { background: var(--white); }

.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--text-secondary); font-size: 14.5px; }

/* CTA banner */
.cta-banner {
  background: var(--navy);
  color: var(--white);
  border-radius: 20px;
  padding: 48px;
  text-align: center;
}
.cta-banner h2 { font-size: clamp(22px, 3vw, 30px); margin-bottom: 12px; }
.cta-banner p { color: var(--cyan-pale); margin-bottom: 24px; }
.cta-banner .btn-primary { background: var(--cyan); color: var(--navy); }
.cta-banner .btn-primary:hover, .cta-banner .btn-primary:focus-visible { background: var(--white); color: var(--navy); }

/* ---------- Timeline (À propos) ---------- */
.timeline { display: flex; flex-direction: column; gap: 28px; }
.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(9,2,63,0.08);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-date { font-weight: 700; color: var(--cyan); font-size: 14px; }
.timeline-item h3 { font-size: 17px; margin-bottom: 6px; }
.timeline-item p { color: var(--text-secondary); font-size: 15px; }

.tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  background: var(--surface);
  border: 1px solid rgba(9,2,63,0.1);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.skills-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.skills-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.skills-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--navy);
}
.skills-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid rgba(9,2,63,0.08);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 14px;
}
.cert-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cert-icon svg { width: 22px; height: 22px; }
.cert-name {
  font-weight: 700;
  font-size: 14.5px;
  color: var(--navy);
  line-height: 1.35;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info .item { margin-bottom: 24px; }
.contact-info .label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.contact-info a { color: var(--navy); text-decoration: none; font-weight: 600; }
.contact-info a:hover { color: var(--cyan); }

form { display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13.5px; font-weight: 600; }
.field input, .field textarea {
  border: 1.5px solid rgba(9,2,63,0.15);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--navy);
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field textarea:focus { border-color: var(--cyan); }
.field-note { font-size: 12.5px; color: var(--text-secondary); }

/*
  Avatar photo compact (page contact), format "pfp" façon LinkedIn :
  rond, taille fixe, photo recadrée en object-fit: cover (contrairement
  au cadre adaptatif de la home, ici un avatar rond doit remplir le
  cercle entièrement, comme n'importe quelle photo de profil).
*/
.contact-photo-block {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}
.contact-photo-frame {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid rgba(9,2,63,0.08);
  box-shadow: 0 8px 16px -8px rgba(9,2,63,0.3);
}
.contact-photo-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.contact-photo-caption {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.4;
}

@media (max-width: 860px) {
  .contact-photo-frame { width: 56px; height: 56px; }
  .contact-photo-caption { font-size: 12px; }
}

form button[type="submit"] {
  align-self: flex-end;
}

/* ---------- Legal ---------- */
.legal-content h2 { font-size: 20px; margin: 32px 0 12px; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content p, .legal-content li { color: var(--text-secondary); font-size: 15px; margin-bottom: 10px; }
.legal-content ul { padding-left: 20px; }
.legal-content { max-width: 760px; }

/* ---------- Utility classes (remplacent le CSS inline) ---------- */
.visually-hidden { position: absolute; left: -9999px; }
.hero-404 { text-align: center; padding: 120px 0; }
.hero-404 h1 { max-width: none; }
.hero-404 .lead { margin: 0 auto 32px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy);
  color: var(--cyan-pale);
  padding: 56px 0 28px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.footer-logo svg { height: 26px; width: auto; margin-bottom: 14px; }
.footer-tagline { color: var(--text-secondary); font-size: 14px; max-width: 32ch; }
.footer-cols { display: flex; gap: 64px; }
.footer-col h4 {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { text-decoration: none; font-size: 14.5px; color: var(--cyan-pale); }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  border-top: 1px solid rgba(217,241,252,0.12);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}
.footer-bottom a { color: var(--text-secondary); text-decoration: underline; }

/* ---------- Menu mobile (CSS pur, aucun JavaScript) ---------- */
.nav-contact-short { display: none; }

@media (max-width: 480px) {
  .nav-contact-full { display: none; }
  .nav-contact-short { display: inline; }
  .nav-contact-btn { padding: 10px 18px; font-size: 14px; }
}

.nav-toggle-checkbox { display: none; }

.nav-toggle-label {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
}
.nav-toggle-label span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--navy);
  border-radius: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-toggle-label { display: flex; }

  .main-nav { gap: 14px; }

  .main-nav ul {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 4px;
    background: var(--white);
    border-bottom: 1px solid rgba(9,2,63,0.08);
    box-shadow: 0 16px 24px -12px rgba(9,2,63,0.18);
    padding: 12px 24px 20px;
  }
  .main-nav ul li { width: 100%; }
  .main-nav ul a {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(9,2,63,0.06);
  }

  .main-nav:has(.nav-toggle-checkbox:checked) ul {
    display: flex;
  }

  .grid-3 { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; gap: 32px; }
  .timeline-item { grid-template-columns: 1fr; gap: 6px; }
  .footer-top { flex-direction: column; }
  .footer-cols { gap: 40px; }
}