:root {
  --bleu-nuit: #021859;
  --bleu-principal: #0442bf;
  --jaune: #f2c641;
  --gris-clair: #f2f2f2;
  --blanc: #ffffff;
  --texte: #15213d;
  --texte-secondaire: #38435d;
  --ligne-claire: rgba(2, 24, 89, 0.2);
  --ligne-sombre: rgba(255, 255, 255, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  color: var(--texte);
  background: var(--gris-clair);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--jaune);
  outline-offset: 5px;
}

[id] {
  scroll-margin-top: 90px;
}

/* Conteneurs */

.site-header,
.hero-content,
.section-intro,
.readiness-grid,
.architecture-block,
.method-heading,
.method-flow,
.method-note,
.certifications-heading,
.certification-list,
.projects-heading,
.featured-project,
.project-list,
.availability-heading,
.engagement-options,
.availability-note,
.availability-action,
.technology-horizon-inner,
.youtube-inner {
  max-width: 1280px;
  margin-right: auto;
  margin-left: auto;
}

/* Hero */

.hero {
  min-height: 100vh;
  padding: 110px 7vw 72px;
  color: var(--blanc);
  background:
    radial-gradient(circle at 82% 28%, rgba(4, 66, 191, 0.7), transparent 28%),
    radial-gradient(circle at 72% 72%, rgba(242, 198, 65, 0.16), transparent 24%),
    var(--bleu-nuit);
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: none;
  padding: 18px 7vw;
  background: rgba(2, 24, 89, 0.94);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--blanc);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 28px;
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  top: 4px;
  width: 14px;
  height: 19px;
  border-top: 4px solid var(--jaune);
  border-bottom: 4px solid var(--jaune);
  content: "";
}

.brand-mark::before {
  left: 0;
  border-left: 4px solid var(--jaune);
  transform: skewY(-38deg);
}

.brand-mark::after {
  right: 0;
  border-right: 4px solid var(--jaune);
  transform: skewY(38deg);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-header nav a {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.9rem;
  text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  color: var(--jaune);
}

.nav-contact {
  color: var(--jaune) !important;
  font-weight: 700;
}

/* Sélecteur de langue */

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
  padding-left: 16px;
  border-left: 1px solid rgba(255, 255, 255, 0.28);
}

.language-switcher a,
.language-disabled {
  font-family: "Courier New", monospace;
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
}

.language-switcher a {
  color: rgba(255, 255, 255, 0.7);
}

.language-switcher a:hover,
.language-switcher a:focus-visible,
.language-switcher a[aria-current="page"] {
  color: var(--jaune);
}

.language-disabled {
  color: rgba(255, 255, 255, 0.35);
}

/* Contenu du hero */

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - 130px);
}

.hero-text {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--jaune);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.1rem, 7vw, 6.9rem);
  line-height: 0.93;
  letter-spacing: -0.07em;
}

.hero-lead {
  max-width: 700px;
  margin: 28px 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.65;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease;
}

.button-primary {
  color: var(--bleu-nuit);
  background: var(--jaune);
}

.button-secondary {
  color: var(--blanc);
  border-color: rgba(255, 255, 255, 0.55);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--blanc);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  color: var(--jaune);
  border-color: var(--jaune);
}

.availability {
  max-width: 700px;
  margin-top: 36px;
  padding-top: 18px;
  color: rgba(255, 255, 255, 0.78);
  border-top: 1px solid rgba(255, 255, 255, 0.26);
  font-size: 0.92rem;
  line-height: 1.55;
}

.availability strong {
  color: var(--blanc);
}

/* Logo SVG */

.logo-stage {
  display: grid;
  min-height: 390px;
  place-items: center;
}

.logo-orbit {
  display: grid;
  width: min(100%, 430px);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 70px rgba(4, 66, 191, 0.3);
}

.neural-logo {
  display: block;
  width: min(82%, 360px);
  height: auto;
  overflow: visible;
}

.neural-connections line {
  stroke: var(--blanc);
  stroke-width: 7;
  stroke-linecap: round;
  opacity: 0.95;
}

.neural-chevrons path {
  fill: none;
  stroke: var(--jaune);
  stroke-width: 16;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.neural-nodes circle {
  fill: var(--blanc);
  stroke: rgba(255, 255, 255, 0.36);
  stroke-width: 4;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.45));
}

/* Sections générales */

.section-number {
  margin: 0;
  color: var(--bleu-principal);
  font-family: "Courier New", monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.readiness,
.method,
.certifications,
.projects,
.availability-section,
.technology-horizon,
.youtube-section {
  position: relative;
}

/* En-têtes de sections */

.section-intro,
.method-heading,
.certifications-heading,
.projects-heading,
.availability-heading {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.section-intro h2,
.method-heading h2,
.certifications-heading h2,
.projects-heading h2,
.availability-heading h2 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.7rem, 5vw, 5.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.section-lead,
.method-heading > p:last-child,
.certifications-heading > p:last-child,
.availability-heading > p:last-child {
  grid-column: 2;
  max-width: 680px;
  margin: 28px 0 0;
  color: var(--texte-secondaire);
  font-size: 1.1rem;
  line-height: 1.7;
}

.projects-heading > p:last-child {
  grid-column: 2;
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--blanc);
  opacity: 0.92;
  font-size: 1.1rem;
  line-height: 1.7;
}

/* AI Readiness */

.readiness {
  padding: 120px 7vw;
  color: var(--bleu-nuit);
  background: var(--gris-clair);
}

/* Parcours */

.journey {
  padding: 120px 7vw;
  color: var(--bleu-nuit);
  background: var(--gris-clair);
}

.readiness-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 90px;
  background: var(--ligne-claire);
  border-top: 1px solid var(--ligne-claire);
  border-bottom: 1px solid var(--ligne-claire);
}

.readiness-card {
  min-height: 280px;
  padding: 30px;
  background: var(--gris-clair);
}

.card-index {
  display: block;
  margin-bottom: 70px;
  color: var(--bleu-principal);
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
}

.readiness-card h3 {
  margin: 0 0 14px;
  color: var(--bleu-nuit);
  font-size: 1.55rem;
}

.readiness-card p {
  max-width: 300px;
  margin: 0;
  color: var(--texte-secondaire);
  line-height: 1.6;
}

.architecture-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
  margin-top: 110px;
  padding-top: 32px;
  border-top: 2px solid var(--bleu-nuit);
}

.architecture-block h2 {
  margin: 12px 0 0;
  color: var(--bleu-nuit);
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.architecture-block > p {
  max-width: 520px;
  margin: 0;
  color: var(--texte-secondaire);
  line-height: 1.7;
}

/* Méthode */

.method {
  padding: 130px 7vw 120px;
  color: var(--bleu-nuit);
  background: var(--blanc);
}

.method-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: 90px;
  background: var(--ligne-claire);
  border-top: 1px solid var(--ligne-claire);
  border-bottom: 1px solid var(--ligne-claire);
}

.method-flow article {
  min-height: 285px;
  padding: 26px 22px;
  background: var(--blanc);
}

.method-flow span {
  display: block;
  margin-bottom: 100px;
  color: var(--bleu-principal);
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
}

.method-flow h3 {
  margin: 0 0 13px;
  color: var(--bleu-nuit);
  font-size: 1.25rem;
}

.method-flow p {
  margin: 0;
  color: var(--texte-secondaire);
  font-size: 0.95rem;
  line-height: 1.55;
}

.method-note {
  margin-top: 64px;
  padding: 24px 28px;
  color: var(--texte-secondaire);
  background: var(--gris-clair);
  border-left: 5px solid var(--jaune);
  line-height: 1.65;
}

.method-note strong {
  color: var(--bleu-nuit);
}

/* Certifications */

.certifications {
  padding: 130px 7vw 120px;
  color: var(--bleu-nuit);
  background: var(--blanc);
}

.certification-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 90px;
  background: var(--ligne-claire);
  border-top: 1px solid var(--ligne-claire);
  border-bottom: 1px solid var(--ligne-claire);
}

.certification-item {
  display: flex;
  min-height: 260px;
  padding: 28px;
  flex-direction: column;
  background: var(--blanc);
}

.certification-number {
  display: block;
  margin-bottom: auto;
  color: var(--bleu-principal);
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
}

.certification-item h3 {
  margin: 0 0 10px;
  color: var(--bleu-nuit);
  font-size: 1.28rem;
  line-height: 1.15;
}

.certification-item p {
  margin: 0 0 18px;
  color: var(--texte-secondaire);
  line-height: 1.5;
}

.certification-item a {
  width: fit-content;
  color: var(--bleu-principal);
  font-weight: 700;
  text-decoration: underline;
}

/* Projets */

.projects {
  padding: 130px 7vw;
  color: var(--blanc);
  background: var(--bleu-nuit);
}

.projects .section-number {
  color: var(--jaune);
}

.featured-project {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  margin-top: 90px;
  border: 1px solid var(--ligne-sombre);
}

.project-visual {
  position: relative;
  display: flex;
  min-height: 490px;
  padding: 34px;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  color: var(--blanc);
  background:
    url("images/phytopulse-proposition-1.png") center / cover no-repeat,
    radial-gradient(circle at 18% 83%, rgba(4, 66, 191, 0.42), transparent 35%),
    var(--bleu-nuit);
}

@media (min-width: 560px) and (max-width: 820px) {
  .project-visual {
    background-image:
      url("images/phytopulse-proposition-1-tablette.png"),
      radial-gradient(circle at 18% 83%, rgba(4, 66, 191, 0.42), transparent 35%);
  }
}

.project-visual::after {
  position: absolute;
  top: 13%;
  right: 10%;
  width: 190px;
  height: 190px;
  border: 14px solid var(--bleu-nuit);
  border-radius: 50%;
  opacity: 0.85;
  content: "";
}

.project-visual-label,
.project-visual-tag {
  position: relative;
  z-index: 1;
  width: fit-content;
  color: var(--jaune);
  background: rgba(2, 24, 89, 0.55);
  box-shadow: 0 0 0 5px rgba(2, 24, 89, 0.55);
  font-family: "Courier New", monospace;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.project-visual-title {
  position: relative;
  z-index: 1;
  font-size: clamp(4rem, 8vw, 7.3rem);
  font-weight: 800;
  line-height: 0.78;
  letter-spacing: -0.1em;
}

.featured-project-content {
  display: flex;
  padding: 46px;
  flex-direction: column;
  justify-content: center;
  background: #08236f;
}

.featured-project-content h3 {
  margin: 18px 0 20px;
  font-size: clamp(1.9rem, 3vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.featured-project-content > p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
}

.project-tags {
  display: flex;
  padding: 0;
  margin: 28px 0;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.project-tags li {
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 999px;
  color: var(--blanc);
  font-family: "Courier New", monospace;
  font-size: 0.75rem;
}

.project-status {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.92rem;
}

.project-status strong {
  color: var(--jaune);
}

.project-link,
.all-projects-link {
  display: inline-flex;
  width: fit-content;
  margin-top: 24px;
  color: var(--jaune);
  font-weight: 700;
  text-decoration: none;
}

.project-link:hover,
.project-link:focus-visible,
.all-projects-link:hover,
.all-projects-link:focus-visible {
  color: var(--blanc);
}

.project-list {
  margin-top: 78px;
}

.project-list-title {
  margin: 0 0 18px;
  color: rgba(255, 255, 255, 0.7);
  font-family: "Courier New", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.26);
}

.project-item {
  display: grid;
  min-height: 168px;
  padding: 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--blanc);
  text-decoration: none;
}

.project-item:nth-child(3n) {
  border-right: 0;
}

.project-item:hover,
.project-item:focus-visible {
  background: rgba(255, 255, 255, 0.08);
}

.project-item span {
  color: var(--jaune);
  font-family: "Courier New", monospace;
  font-size: 0.76rem;
  font-weight: 700;
}

.project-item strong {
  margin-top: auto;
  font-size: 1.15rem;
}

.project-item em {
  margin-top: 9px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.85rem;
  font-style: normal;
}

.all-projects-link {
  margin-top: 28px;
}

/* Disponibilité */

.availability-section {
  padding: 130px 7vw;
  overflow: hidden;
  color: var(--bleu-nuit);
  background: var(--jaune);
}

.availability-section .section-number {
  color: var(--bleu-nuit);
}

.engagement-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 90px;
  background: rgba(2, 24, 89, 0.35);
  border-top: 1px solid rgba(2, 24, 89, 0.35);
  border-bottom: 1px solid rgba(2, 24, 89, 0.35);
}

.engagement-options article {
  min-height: 300px;
  padding: 30px;
  background: var(--jaune);
}

.engagement-options article > span:first-child {
  display: block;
  margin-bottom: 92px;
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
}

.engagement-options h3 {
  margin: 0 0 14px;
  font-size: 1.55rem;
}

.engagement-options p {
  max-width: 320px;
  margin: 0;
  color: rgba(2, 24, 89, 0.84);
  line-height: 1.62;
}

.teamone-contact {
  display: flex;
  margin-top: 22px;
  padding-top: 18px;
  flex-direction: column;
  gap: 5px;
  color: rgba(2, 24, 89, 0.9);
  border-top: 1px solid rgba(2, 24, 89, 0.28);
  font-size: 0.88rem;
  line-height: 1.45;
}

.teamone-contact strong {
  color: var(--bleu-nuit);
}

.teamone-contact a {
  color: var(--bleu-nuit);
  font-weight: 700;
  text-decoration: underline;
}

.teamone-contact small {
  margin-top: 8px;
  color: var(--bleu-nuit);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.45;
}

.availability-note {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 62px;
  padding-top: 25px;
  border-top: 2px solid var(--bleu-nuit);
}

.availability-note p {
  margin: 0;
  color: rgba(2, 24, 89, 0.88);
  line-height: 1.65;
}

.availability-note strong {
  color: var(--bleu-nuit);
}

.availability-action {
  margin-top: 44px;
}

.availability-action .button {
  color: var(--jaune);
  background: var(--bleu-nuit);
}

.availability-action .button:hover,
.availability-action .button:focus-visible {
  color: var(--bleu-nuit);
  background: var(--blanc);
}

.availability-email {
  margin: 16px 0 0;
  color: var(--bleu-nuit);
  font-size: 0.95rem;
}

.availability-email a {
  color: var(--bleu-nuit);
  font-weight: 700;
  text-decoration: underline;
}

.availability-email a:hover,
.availability-email a:focus-visible {
  color: var(--bleu-principal);
}

/* Footer */

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 58px 7vw 36px;
  color: var(--blanc);
  background: var(--bleu-nuit);
}

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer a {
  color: var(--jaune);
  font-weight: 700;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--blanc);
}

.footer-brand {
  color: var(--blanc) !important;
  font-weight: 700;
}

.footer-legal {
  display: flex;
  justify-content: flex-end;
  gap: 20px;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.56);
  font-family: "Courier New", monospace;
  font-size: 0.76rem;
}

/* Photo */

.profile-photo {
  position: relative;
  width: min(100%, 235px);
  aspect-ratio: 4 / 5;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.08);
}

.profile-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(100%);
}

.hero-visual {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 24px;
}

.hero-visual .profile-photo {
  margin: 0;
}

.hero-visual .logo-stage {
  width: 100%;
  margin: 0;
}

/* Horizon technologique */

.technology-horizon {
  position: relative;
  padding: 120px 7vw;
  color: var(--blanc);
  background:
    radial-gradient(
      circle at 90% 10%,
      rgba(4, 66, 191, 0.38),
      transparent 38%
    ),
    var(--bleu-nuit);
}

.technology-horizon .section-number {
  color: var(--jaune);
}

.technology-horizon-heading {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.technology-horizon-heading h2 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.7rem, 5vw, 5.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.technology-horizon-lead {
  grid-column: 2;
  max-width: 680px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.1rem;
  line-height: 1.7;
}

.technology-horizon-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 72px;
}

.technology-horizon-visual {
  margin: 56px 0 0;
}

.technology-horizon-visual img {
  display: block;
  width: 100%;
  max-width: 1200px;
  height: auto;
  margin-inline: auto;
  object-fit: contain;
  border: 1px solid var(--ligne-sombre);
}

.technology-horizon-card {
  display: flex;
  min-width: 0;
  padding: 30px;
  flex-direction: column;
  border: 1px solid var(--ligne-sombre);
  background: rgba(255, 255, 255, 0.04);
}

.technology-horizon-index {
  display: block;
  margin-bottom: 48px;
  color: var(--jaune);
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
}

.technology-horizon-card h3 {
  margin: 0 0 16px;
  color: var(--blanc);
  font-size: clamp(1.4rem, 2vw, 1.8rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  overflow-wrap: break-word;
}

.technology-horizon-card p {
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
}

.technology-horizon-card .technology-horizon-tagline {
  color: var(--jaune);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
}

.technology-horizon-card .technology-horizon-focus {
  margin-top: auto;
  margin-bottom: 0;
  padding-top: 20px;
  border-top: 1px solid var(--ligne-sombre);
  font-size: 0.92rem;
}

.technology-horizon-perspective {
  margin-top: 48px;
  padding: 28px 32px;
  border-left: 5px solid var(--jaune);
  background: rgba(255, 255, 255, 0.06);
}

.technology-horizon-perspective h3 {
  margin: 0 0 14px;
  color: var(--blanc);
  font-size: 1.35rem;
  line-height: 1.25;
}

.technology-horizon-perspective p {
  max-width: 960px;
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.7;
}

.technology-horizon-role {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 60px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--ligne-sombre);
}

.technology-horizon-role h3 {
  max-width: 520px;
  margin: 18px 0 0;
  color: var(--blanc);
  font-size: clamp(1.9rem, 3vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.technology-horizon-role-content p {
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.7;
}

.technology-horizon-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  color: var(--jaune);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.technology-horizon-link:hover,
.technology-horizon-link:focus-visible {
  color: var(--blanc);
}

/* YouTube */

.youtube-section {
  position: relative;
  padding: 120px 7vw;
  color: var(--bleu-nuit);
  background: var(--gris-clair);
}

.youtube-heading {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  align-items: start;
  gap: 40px;
}

.youtube-heading h2 {
  max-width: 780px;
  margin: 0;
  color: var(--bleu-nuit);
  font-size: clamp(2.7rem, 5vw, 5.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.youtube-lead {
  grid-column: 2;
  max-width: 680px;
  margin: 28px 0 0;
  color: var(--texte-secondaire);
  font-size: 1.1rem;
  line-height: 1.7;
}

.youtube-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  align-items: center;
  gap: 48px;
  margin-top: 64px;
}

.youtube-player {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--ligne-claire);
  background: var(--bleu-nuit);
}

.youtube-player iframe {
  display: block;
  width: 100%;
  height: auto;
  min-height: 360px;
  aspect-ratio: 16 / 9;
  border: 0;
}

.youtube-content {
  min-width: 0;
}

.youtube-content h3 {
  margin: 0 0 20px;
  color: var(--bleu-nuit);
  font-size: clamp(1.6rem, 2.5vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -0.04em;
  overflow-wrap: break-word;
}

.youtube-content p {
  margin: 0 0 20px;
  color: var(--texte-secondaire);
  line-height: 1.7;
}

.youtube-link {
  display: flex;
  width: fit-content;
  max-width: 100%;
  align-items: flex-start;
  gap: 10px;
  margin-top: 18px;
  color: var(--bleu-principal);
  font-weight: 700;
  line-height: 1.5;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.youtube-link + .youtube-link {
  margin-top: 12px;
}

.youtube-link span {
  flex: 0 0 auto;
  white-space: nowrap;
}

.youtube-link:hover,
.youtube-link:focus-visible {
  color: var(--bleu-nuit);
}

.youtube-content .youtube-privacy-note {
  margin-top: 28px;
  margin-bottom: 0;
  padding-top: 20px;
  border-top: 1px solid var(--ligne-claire);
  font-size: 0.88rem;
}

.youtube-privacy-note a {
  color: var(--bleu-principal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.youtube-privacy-note a:hover,
.youtube-privacy-note a:focus-visible {
  color: var(--bleu-nuit);
}

/* Pages légales */

.legal-page {
  min-height: 100vh;
  background: var(--gris-clair);
  color: var(--bleu-nuit);
}

.legal-content {
  width: min(100% - 48px, 900px);
  margin: 0 auto;
  padding: 110px 0 100px;
}

.legal-content h1 {
  max-width: 900px;
  margin: 18px 0 28px;
  color: var(--bleu-nuit);
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.legal-intro {
  max-width: 720px;
  margin: 0 0 64px;
  color: var(--texte-secondaire);
  font-size: 1.1rem;
  line-height: 1.7;
}

.legal-section {
  max-width: 760px;
  margin: 0 0 52px;
  padding-top: 28px;
  border-top: 1px solid var(--ligne-claire);
}

.legal-section h2 {
  margin: 0 0 22px;
  color: var(--bleu-nuit);
  font-size: clamp(1.45rem, 2.5vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.legal-section p {
  margin: 0 0 16px;
  color: var(--texte-secondaire);
  font-size: 1rem;
  line-height: 1.7;
}

.legal-section a,
.legal-content a {
  color: var(--bleu-principal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-section a:hover,
.legal-section a:focus-visible,
.legal-content a:hover,
.legal-content a:focus-visible {
  color: var(--bleu-nuit);
}

.legal-updated {
  margin: 70px 0 0;
  color: var(--texte-secondaire);
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
}

/* Tablette */

@media (max-width: 980px) {
  .method-flow {
    grid-template-columns: repeat(3, 1fr);
  }

  .technology-horizon-grid {
    gap: 16px;
  }

  .technology-horizon-card {
    padding: 24px;
  }
}

/* Mobile */

@media (max-width: 820px) {
  .hero {
    padding: 92px 6vw 52px;
  }

  .site-header {
    align-items: flex-start;
    padding: 16px 6vw;
  }

  .site-header nav {
    display: none;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .logo-stage {
    min-height: 290px;
    order: -1;
  }

  .logo-orbit {
    width: min(100%, 310px);
  }

  .neural-logo {
    width: min(86%, 310px);
  }

  .readiness,
  .method,
  .certifications,
  .projects,
  .availability-section,
  .technology-horizon,
  .youtube-section,
  .journey {
    padding: 85px 6vw;
  }

  .section-intro,
  .method-heading,
  .certifications-heading,
  .projects-heading,
  .availability-heading,
  .technology-horizon-heading,
  .youtube-heading {
    display: block;
  }

  .section-intro h2,
  .method-heading h2,
  .certifications-heading h2,
  .projects-heading h2,
  .availability-heading h2,
  .technology-horizon-heading h2,
  .youtube-heading h2 {
    margin-top: 24px;
  }

  .section-lead,
  .method-heading > p:last-child,
  .certifications-heading > p:last-child,
  .projects-heading > p:last-child,
  .availability-heading > p:last-child,
  .technology-horizon-lead,
  .youtube-lead {
    margin-top: 24px;
  }

  .readiness-grid,
  .certification-list,
  .engagement-options {
    grid-template-columns: 1fr;
    margin-top: 60px;
  }

  .readiness-card,
  .certification-item,
  .engagement-options article {
    min-height: auto;
  }

  .card-index,
  .certification-number,
  .engagement-options article > span:first-child {
    margin-bottom: 35px;
  }

  .architecture-block {
    display: block;
    margin-top: 70px;
  }

  .architecture-block > p {
    margin-top: 28px;
  }

  .method-flow {
    grid-template-columns: 1fr;
    margin-top: 60px;
  }

  .method-flow article {
    min-height: auto;
  }

  .method-flow span {
    margin-bottom: 28px;
  }

  .featured-project {
    grid-template-columns: 1fr;
    margin-top: 60px;
  }

  .project-visual {
    min-height: 340px;
  }

  .project-visual::after {
    display: none;
  }

  .featured-project-content {
    padding: 32px 26px;
  }

  .project-list-grid {
    grid-template-columns: 1fr;
  }

  .project-item,
  .project-item:nth-child(3n) {
    border-right: 0;
  }

  .availability-note {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .technology-horizon-visual {
    margin-top: 36px;
  }

  .technology-horizon-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 48px;
  }

  .technology-horizon-card {
    padding: 26px;
  }

  .technology-horizon-index {
    margin-bottom: 28px;
  }

  .technology-horizon-perspective {
    margin-top: 32px;
    padding: 24px;
  }

  .technology-horizon-role {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 48px;
  }

  .youtube-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-top: 48px;
  }

  .youtube-player iframe {
    min-height: 220px;
  }

  .youtube-content h3 {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }

  .site-footer {
    display: block;
    padding: 48px 6vw 30px;
  }

  .footer-legal {
    justify-content: flex-start;
    gap: 12px 20px;
    margin-top: 28px;
    flex-wrap: wrap;
  }

  .footer-bottom {
    display: block;
    margin-top: 32px;
  }

  .footer-bottom p + p {
    margin-top: 14px;
  }

  .legal-content {
    width: min(100% - 32px, 680px);
    padding: 72px 0 70px;
  }

  .legal-content h1 {
    font-size: clamp(2.2rem, 12vw, 3.5rem);
  }

  .legal-intro {
    margin-bottom: 48px;
    font-size: 1rem;
  }

  .legal-section {
    margin-bottom: 42px;
  }

  .legal-section h2 {
    font-size: 1.6rem;
  }

  .hero-visual {
    gap: 16px;
  }

  .hero-visual .profile-photo {
    width: min(100%, 210px);
  }
}

/* Animation discrète du logo neuronal */

.neural-connections line {
  stroke-dasharray: 220;
  stroke-dashoffset: 220;
  animation: neural-draw 2.2s ease-out forwards;
}

.neural-nodes circle {
  transform-box: fill-box;
  transform-origin: center;
  animation: neural-pulse 3.8s ease-in-out infinite;
}

.neural-nodes circle:nth-child(2) {
  animation-delay: 0.45s;
}

.neural-nodes circle:nth-child(3) {
  animation-delay: 0.9s;
}

.neural-chevrons path {
  animation: neural-glow 4.5s ease-in-out infinite;
}

@keyframes neural-draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes neural-pulse {
  0%,
  100% {
    opacity: 0.78;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

@keyframes neural-glow {
  0%,
  100% {
    opacity: 0.7;
  }

  50% {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .neural-connections line,
  .neural-nodes circle,
  .neural-chevrons path {
    animation: none;
  }

  .neural-connections line {
    stroke-dashoffset: 0;
  }

  .button {
    transition: none;
  }
}
.youtube-fallback {
  min-height: 360px;
  background:
    radial-gradient(
      circle at 72% 28%,
      rgba(4, 66, 191, 0.65),
      transparent 44%
    ),
    var(--bleu-nuit);
}

.youtube-fallback a {
  display: flex;
  min-height: 360px;
  padding: 42px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: var(--blanc);
  text-align: center;
  text-decoration: none;
}

.youtube-fallback-icon {
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  border: 1px solid rgba(242, 198, 65, 0.6);
  border-radius: 50%;
  color: var(--jaune);
  font-size: 1.8rem;
}

.youtube-fallback a small {
  display: block;
  max-width: 420px;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.86rem;
  line-height: 1.5;
}

.youtube-fallback a:hover,
.youtube-fallback a:focus-visible {
  color: var(--jaune);
}

@media (max-width: 820px) {
  .youtube-fallback,
  .youtube-fallback a {
    min-height: 260px;
  }

  .youtube-fallback a {
    padding: 28px 20px;
    flex-direction: column;
  }
}

/* Note linguistique néerlandaise */

.language-note {
  grid-column: 2;
  max-width: 680px;
  margin: 24px 0 0;
  padding: 14px 18px;
  color: var(--texte-secondaire);
  background: rgba(2, 24, 89, 0.045);
  border-left: 4px solid var(--bleu-principal);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* Affichage mobile */

@media (max-width: 820px) {
  .language-note {
    grid-column: auto;
    max-width: none;
    margin-top: 24px;
  }
}

/* Navigation mobile accessible */
.menu-toggle { display: none; }

@media (max-width: 820px) {
  .site-header { align-items: center; flex-wrap: wrap; padding: 14px 6vw; }
  .menu-toggle { display: flex; width: 44px; height: 44px; padding: 10px; flex-direction: column; justify-content: center; gap: 5px; border: 1px solid rgba(255,255,255,.35); border-radius: 6px; color: var(--blanc); background: transparent; cursor: pointer; }
  .menu-toggle span { display: block; width: 22px; height: 2px; border-radius: 2px; background: currentColor; transition: transform 180ms ease, opacity 180ms ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .site-header nav { display: none; width: 100%; padding: 10px 0 6px; flex-direction: column; align-items: stretch; gap: 0; }
  .site-header nav.is-open { display: flex; max-height: calc(100vh - 72px); overflow-y: auto; }
  .site-header nav > a { display: block; padding: 12px 2px; border-top: 1px solid rgba(255,255,255,.14); font-size: 1rem; }
  .language-switcher { display: flex; margin: 10px 0 0; padding: 14px 0 4px; gap: 18px; border-top: 1px solid rgba(255,255,255,.2); border-left: 0; }
  .language-switcher a { padding: 8px 4px; font-size: .9rem; }
}

/* Parcours — frise chronologique et réseau abstrait */

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.journey-nowrap {
  white-space: nowrap;
}

/* Flèche lisible même dans les libellés en Courier New */
.journey-arrow {
  font-family: Arial, Helvetica, sans-serif;
}

.section-number .journey-arrow {
  font-size: 1.3em;
  line-height: 1;
}

.journey-subtitle {
  grid-column: 2;
  max-width: 680px;
  margin: 26px 0 0;
  color: var(--bleu-principal);
  font-size: clamp(1.15rem, 1.7vw, 1.4rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.journey .journey-subtitle + .section-lead {
  margin-top: 22px;
}

.journey-layout {
  --journey-network-w: clamp(240px, 24vw, 380px);

  position: relative;
  max-width: 1280px;
  margin: 90px auto 0;
}

.journey-timeline {
  --journey-gap: 28px;
  --journey-axis: 20px;     /* bord gauche de la carte → centre de l'axe */
  --journey-node-li: 31px;  /* centre du nœud depuis le haut du jalon */
  --journey-card-y: 0px;    /* haut de la carte depuis le haut du jalon */

  display: grid;
  gap: var(--journey-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Le fil se renforce de 1981 à aujourd'hui */
.journey-item:nth-child(1) {
  --journey-line: rgba(4, 66, 191, 0.28);
  --journey-dot: rgba(4, 66, 191, 0.32);
}

.journey-item:nth-child(2) {
  --journey-line: rgba(4, 66, 191, 0.38);
  --journey-dot: rgba(4, 66, 191, 0.42);
}

.journey-item:nth-child(3) {
  --journey-line: rgba(4, 66, 191, 0.48);
  --journey-dot: rgba(4, 66, 191, 0.5);
}

.journey-item:nth-child(4) {
  --journey-line: rgba(4, 66, 191, 0.6);
  --journey-dot: rgba(4, 66, 191, 0.6);
}

.journey-item:nth-child(5) {
  --journey-line: rgba(4, 66, 191, 0.7);
}

.journey-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  column-gap: 40px;
  align-items: start;
}

/* Liaison nœud → carte (placée dans la zone de grille de la carte) */
.journey-item::before {
  position: absolute;
  grid-column: 2;
  grid-row: 1;
  top: var(--journey-node-li);
  left: -13px;
  width: 13px;
  height: 1px;
  background: var(--journey-line);
  content: "";
}

.journey-period {
  grid-column: 1;
  justify-self: end;
  margin: 0;
  padding-top: 21px;
  color: var(--bleu-principal);
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 20px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.journey-card {
  position: relative;
  grid-column: 2;
  width: 100%;
  max-width: 680px;
  min-width: 0;
  padding: 24px 28px 22px;
  background: var(--blanc);
  border: 1px solid var(--ligne-claire);
}

/* Nœud du jalon */
.journey-card::before {
  position: absolute;
  z-index: 2;
  top: calc(var(--journey-node-li) - var(--journey-card-y) - 7px);
  left: calc(-7px - var(--journey-axis));
  width: 13px;
  height: 13px;
  border: 2px solid var(--bleu-principal);
  border-radius: 50%;
  background: var(--blanc);
  content: "";
}

/* Segment vers le jalon suivant, avec deux petits nœuds */
.journey-card::after {
  position: absolute;
  z-index: 1;
  top: calc(var(--journey-node-li) - var(--journey-card-y) - 1px);
  bottom: calc(-1px - var(--journey-gap) - var(--journey-node-li));
  left: calc(-4px - var(--journey-axis));
  width: 7px;
  background:
    radial-gradient(circle, var(--journey-dot) 0 2px, transparent 2.6px) 50% 34% / 7px 7px no-repeat,
    radial-gradient(circle, var(--journey-dot) 0 2px, transparent 2.6px) 50% 68% / 7px 7px no-repeat,
    linear-gradient(var(--journey-line), var(--journey-line)) 50% 0 / 1px 100% no-repeat;
  content: "";
}

.journey-item:last-child .journey-card::after {
  content: none;
}

/* Jalon actuel */
.journey-item--current::before {
  left: -11px;
  width: 11px;
}

.journey-item--current .journey-card {
  padding-left: 33px;
  box-shadow: inset 5px 0 0 var(--jaune);
}

.journey-item--current .journey-card::before {
  top: calc(var(--journey-node-li) - var(--journey-card-y) - 9px);
  left: calc(-9px - var(--journey-axis));
  width: 17px;
  height: 17px;
  border-color: var(--bleu-nuit);
  background: var(--jaune);
  box-shadow: 0 0 0 5px rgba(242, 198, 65, 0.28);
}

.journey-card h3 {
  margin: 0;
  color: var(--bleu-nuit);
  font-size: clamp(1.2rem, 1.6vw, 1.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
  hyphens: auto;
}

.journey-tags {
  margin: 8px 0 14px;
  color: var(--bleu-principal);
  font-family: "Courier New", monospace;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.45;
  overflow-wrap: break-word;
}

.journey-text {
  margin: 0;
  color: var(--texte-secondaire);
  font-size: 0.98rem;
  line-height: 1.6;
  overflow-wrap: break-word;
  hyphens: auto;
}

.journey-note {
  position: relative;
  margin: 16px 0 0;
  padding: 13px 0 0 18px;
  border-top: 1px solid var(--ligne-claire);
  color: var(--texte);
  font-size: 0.93rem;
  line-height: 1.55;
  overflow-wrap: break-word;
  hyphens: auto;
}

.journey-note::before {
  position: absolute;
  top: calc(13px + 0.775em - 3.5px);
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bleu-principal);
  content: "";
}

.journey-note strong {
  color: var(--bleu-nuit);
}

.journey-note--context {
  padding-left: 0;
  color: var(--texte-secondaire);
}

.journey-note--context::before {
  content: none;
}

.journey-note--now::before {
  top: calc(13px + 0.775em - 4.5px);
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--bleu-nuit);
  background: var(--jaune);
}

/* Réseau abstrait décoratif : grand écran uniquement */
.journey-network {
  display: none;
}

.journey-outro {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  column-gap: 40px;
  max-width: 1280px;
  margin: 56px auto 0;
}

.journey-outro p {
  grid-column: 2;
  max-width: 680px;
  margin: 0;
  padding: 22px 26px;
  color: var(--texte-secondaire);
  background: var(--blanc);
  border-left: 5px solid var(--jaune);
  line-height: 1.65;
  overflow-wrap: break-word;
}

@media (min-width: 1240px) {
  .journey-card {
    max-width: min(560px, 100% - var(--journey-network-w) - 48px);
  }

  .journey-network {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    display: block;
    width: var(--journey-network-w);
    background: url("images/parcours-reseau.svg") right bottom / 100% auto no-repeat;
    pointer-events: none;
  }
}

@media (max-width: 820px) {
  .journey-layout {
    margin-top: 60px;
  }

  .journey-timeline {
    --journey-gap: 26px;
    --journey-axis: 28px;
    --journey-node-li: 10px;
    --journey-card-y: 28px;
  }

  .journey-item {
    grid-template-columns: minmax(0, 1fr);
    padding-left: 34px;
  }

  .journey-item::before {
    content: none;
  }

  .journey-period {
    justify-self: start;
    margin-bottom: 8px;
    padding-top: 0;
  }

  .journey-card {
    grid-column: 1;
    max-width: none;
    padding: 20px 20px 18px;
  }

  .journey-item--current .journey-card {
    padding-left: 25px;
  }

  .journey-card::after {
    background: linear-gradient(var(--journey-line), var(--journey-line)) 50% 0 / 1px 100% no-repeat;
  }

  .journey-outro {
    display: block;
    margin-top: 40px;
  }

  .journey-outro p {
    padding: 20px;
  }
}