:root {
  --color-bg: #0b1120;
  --color-surface: #121a2b;
  --color-surface-alt: #182235;
  --color-card: #1d2940;
  --color-text: #e5ecf5;
  --color-text-soft: #9fb0c9;
  --color-primary: #63b3ff;
  --color-primary-strong: #3391f0;
  --color-primary-soft: rgba(99, 179, 255, 0.14);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-success: #2f9e5f;
  --shadow-sm: 0 10px 24px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 18px 42px rgba(0, 0, 0, 0.26);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --container: 1120px;
  --header-height: 78px;
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at top right, rgba(51, 145, 240, 0.18), transparent 25%),
    linear-gradient(180deg, #09101d 0%, var(--color-bg) 100%);
  line-height: 1.6;
}

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

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  background: var(--color-primary);
  color: #08101b;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 200;
  text-decoration: none;
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-height);
  backdrop-filter: blur(12px);
  background: rgba(9, 16, 29, 0.88);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-mark {
  width: 2.75rem;
  height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
  color: #08101b;
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-label {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.brand-title {
  font-size: 1rem;
  font-weight: 700;
}

.brand-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.nav-toggle {
  display: none;
  width: 2.8rem;
  height: 2.8rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  display: block;
  width: 1.25rem;
  height: 2px;
  margin: 0 auto;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle-lines::before {
  transform: translateY(-6px);
}

.nav-toggle-lines::after {
  transform: translateY(4px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines::before {
  transform: translateY(0);
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines::after {
  transform: translateY(-2px) rotate(-90deg);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list,
.dropdown-menu,
.footer-links,
.info-list,
.bullet-list,
.timeline-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-item {
  position: relative;
}

.nav-link,
.dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text-soft);
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: transparent;
  border: 0;
  font: inherit;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.nav-link:hover,
.nav-link.is-active,
.dropdown-toggle:hover,
.nav-item.is-open > .dropdown-toggle,
.nav-item.is-current > .dropdown-toggle {
  color: var(--color-text);
  background: var(--color-primary-soft);
}

.dropdown-caret {
  font-size: 0.8rem;
  transition: transform var(--transition);
}

.nav-item.is-open .dropdown-caret {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 220px;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  background: rgba(18, 26, 43, 0.98);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.dropdown-menu a {
  display: block;
  padding: 0.8rem 0.95rem;
  text-decoration: none;
  color: var(--color-text-soft);
  border-radius: 12px;
}

.dropdown-menu a:hover,
.dropdown-menu a.is-active {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text);
}

@media (min-width: 769px) {
  /* Chevron toujours visible sans barres de defilement dans la nav */
  .site-nav {
    flex: 1;
    justify-content: flex-end;
    overflow: visible;
  }

  .nav-list {
    flex-wrap: nowrap;
    flex-shrink: 0;
  }

  .nav-item.dropdown {
    flex-shrink: 0;
  }

  .dropdown-toggle {
    white-space: nowrap;
  }

  .dropdown-toggle .dropdown-caret {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    line-height: 1;
  }

  .nav-item.dropdown:hover > .dropdown-menu,
  .nav-item.dropdown:focus-within > .dropdown-menu,
  .nav-item.dropdown.is-open > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

.page-main {
  min-height: calc(100vh - var(--header-height));
}

.hero-section,
.page-hero {
  padding: 5.5rem 0 3.5rem;
}

.hero-layout,
.two-columns,
.download-panel,
.footer-layout {
  display: grid;
  gap: 1.5rem;
}

.hero-layout {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
}

.hero-layout-minimal {
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 2.5rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  font-weight: 700;
}

.hero-title,
.page-title {
  margin: 0 0 1rem;
  line-height: 1.1;
  font-size: clamp(2.4rem, 5vw, 4rem);
}

.hero-text,
.page-intro,
.card p,
.section-text {
  color: var(--color-text-soft);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}

.hero-card,
.card,
.highlight-box,
.timeline-item,
.download-box,
.footer-block {
  background: rgba(18, 26, 43, 0.88);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.hero-card,
.card,
.timeline-item,
.download-box,
.footer-block {
  padding: 1.5rem;
}

.hero-card h2,
.card h2,
.card h3,
.download-box h2,
.timeline-item h3,
.footer-block h3 {
  margin-top: 0;
}

.card h3.competence-heading {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
}

/* Carte competences (Limseo / LabWare) : blocs lisibles et listes a puces visibles */
.card.competence-card .competence-block {
  padding: 1.15rem 1.3rem;
  border-radius: var(--radius-md);
  background: rgba(99, 179, 255, 0.075);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.card.competence-card .competence-block + .competence-block {
  margin-top: 1.35rem;
}

.card.competence-card .competence-heading {
  margin: 0 0 0.65rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--color-border);
  font-size: clamp(1.08rem, 1.8vw, 1.28rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
}

.card.competence-card ul.bullet-list.competence-points {
  display: block;
  margin: 0;
  padding: 0.25rem 0 0 1.4rem;
  list-style: disc;
  list-style-position: outside;
}

.card.competence-card ul.bullet-list.competence-points li {
  margin: 0.85rem 0 0;
  padding-left: 0.4rem;
  color: var(--color-text-soft);
  line-height: 1.62;
}

.card.competence-card ul.bullet-list.competence-points li:first-child {
  margin-top: 0;
}

.card.competence-card ul.bullet-list.competence-points li strong {
  color: var(--color-text);
}

.card.competence-card ul.bullet-list.competence-points li::marker {
  color: var(--color-primary-strong);
}

.section-experience-lead.experience-follow {
  margin-top: 1rem;
  padding-top: 2.25rem;
  border-top: 1px solid var(--color-border);
}

.hero-name {
  margin: 0;
  line-height: 0.95;
  font-size: clamp(3rem, 8vw, 5.5rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero-name span {
  display: block;
}

.hero-text-minimal {
  max-width: 34rem;
  margin: 1.25rem 0 0;
  font-size: 1.05rem;
  color: var(--color-text-soft);
}

.hero-text-minimal p {
  margin: 0 0 1rem;
}

.hero-text-minimal p:last-child {
  margin-bottom: 0;
}

.hero-photo-frame {
  margin: 0;
  width: min(100%, 360px);
  aspect-ratio: 1 / 1;
  padding: 0.75rem;
  border-radius: 50%;
  background: rgba(18, 26, 43, 0.88);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  justify-self: center;
}

.hero-photo-frame img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
}

.section {
  padding: 2.2rem 0 1rem;
}

.section-header {
  margin-bottom: 1.25rem;
}

.section-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 2vw, 2.2rem);
}

.section-subtitle {
  margin: 0;
  color: var(--color-text-soft);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

@media (min-width: 901px) {
  .technos-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.download-panel {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: stretch;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  margin: 1rem 0 0;
  list-style: none;
}

.pill-list li,
.tag {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-soft);
  border: 1px solid var(--color-border);
}

.info-list,
.bullet-list,
.timeline-list {
  display: grid;
  gap: 0.75rem;
}

.timeline-list {
  gap: 1rem;
}

.timeline-item .timeline-meta {
  display: inline-block;
  margin-bottom: 0.65rem;
  color: var(--color-primary);
  font-weight: 700;
}

.experience-timeline {
  gap: 1.25rem;
}

.experience-entry {
  padding: 1.7rem;
}

.experience-entry-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem 1.25rem;
}

.experience-entry-title {
  margin: 0;
}

.experience-entry-role {
  margin: 0.55rem 0 0.9rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
}

.experience-entry .section-text {
  margin: 0.35rem 0;
}

.stats-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.stat-card {
  text-align: center;
}

.stat-value {
  margin: 0 0 0.45rem;
  line-height: 1;
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 800;
  color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-height: 48px;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
  color: #08101b;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-download {
  background: linear-gradient(135deg, #2f9e5f, #23764a);
  color: #fff;
}

.notice {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--color-primary);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-soft);
}

.site-footer {
  margin-top: 3.5rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border);
  background: rgba(9, 16, 29, 0.95);
}

.footer-layout {
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.footer-block {
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
  border-radius: 0;
}

.footer-title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.footer-copy,
.footer-links a {
  color: var(--color-text-soft);
  text-decoration: none;
}

.footer-copy {
  margin: 0;
}

.footer-links {
  display: grid;
  gap: 0.55rem;
}

.footer-links a:hover {
  color: var(--color-text);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 900px) {
  .hero-layout,
  .hero-layout-minimal,
  .two-columns,
  .download-panel,
  .footer-layout {
    grid-template-columns: 1fr;
  }

  .hero-layout-minimal {
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: block;
    padding: 0 1rem 1rem;
    background: rgba(9, 16, 29, 0.98);
    border-bottom: 1px solid var(--color-border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-lg);
    background: rgba(18, 26, 43, 0.94);
  }

  .nav-link,
  .dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    border-radius: var(--radius-md);
  }

  .dropdown-menu {
    position: static;
    min-width: 0;
    margin-top: 0.5rem;
    padding: 0.4rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: none;
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-item.is-open > .dropdown-menu {
    display: block;
  }

  .hero-section,
  .page-hero {
    padding-top: 4.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}