:root {
  --bg: #090C10;
  --surface: #11161F;
  --surface-2: #161B22;
  --border: #1c2530;
  --border-soft: #151c26;
  --neon: #00FF87;
  --neon-2: #00FF66;
  --cyan: #0EA5E9;
  --txt: #F8FAFC;
  --muted: #64748B;
  --dim: #94a3b8;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --glow: drop-shadow(0 0 12px rgba(0, 255, 135, .4));
  --max: 1180px;
}

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

html {
  scroll-behavior: smooth
}

body {
  background: var(--bg);
  color: var(--txt);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(800px 600px at 8% -8%, rgba(0, 255, 135, .07), transparent 55%),
    radial-gradient(700px 600px at 95% 5%, rgba(14, 165, 233, .06), transparent 55%),
    var(--bg);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .4;
  background-image: linear-gradient(var(--border-soft) 1px, transparent 1px), linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, black, transparent 80%);
}

a {
  color: inherit;
  text-decoration: none
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 26px;
  position: relative
}

.mono {
  font-family: var(--mono)
}

.neon {
  color: var(--neon)
}

.cyan {
  color: var(--cyan)
}

.muted {
  color: var(--muted)
}

.tag {
  font-family: var(--mono);
  color: var(--muted);
  font-size: .62em;
  font-weight: 500
}

.tag .neon {
  color: var(--neon)
}

/* NAV */
header.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(14px);
  background: rgba(9, 12, 16, .75);
  border-bottom: 1px solid var(--border-soft)
}

.nav-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 70px;
  gap: 16px
}

.nav-left {
  display: flex;
  gap: 22px
}

.nav-right {
  display: flex;
  gap: 22px;
  justify-content: flex-end;
  align-items: center
}

.nav-item {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  transition: .2s;
  white-space: nowrap
}

.nav-item b {
  color: var(--neon)
}

.nav-item .br {
  color: var(--dim)
}

.nav-item:hover {
  color: var(--txt)
}

.nav-item:hover b {
  text-shadow: 0 0 10px rgba(0, 255, 135, .6)
}

.brand {
  font-family: var(--mono);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 1px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 12px;
  color: var(--txt)
}

.brand span {
  color: var(--neon)
}

.lang {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 11px;
  border-radius: 8px;
  cursor: pointer;
  transition: .2s
}

.lang:hover {
  border-color: var(--neon);
  color: var(--neon)
}

.lang b {
  color: var(--neon)
}

.burger {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--txt);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 18px
}

section {
  padding: 110px 0;
  position: relative
}

/* section heading with code tags */
.h-tag {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 10px;
  display: block
}

.h-tag .neon {
  color: var(--neon)
}

.sec-title {
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(30px, 5.2vw, 52px);
  letter-spacing: 1px;
  line-height: 1;
  position: relative;
  display: inline-block
}

.sec-title::after {
  content: attr(data-close);
  font-size: .32em;
  color: var(--muted);
  font-weight: 500;
  position: absolute;
  bottom: -6px;
  right: -58px
}

.sec-sub {
  color: var(--dim);
  max-width: 640px;
  margin-top: 22px
}

/* HERO */
.hero {
  padding-top: 60px;
  padding-bottom: 60px;
  min-height: 88vh;
  display: flex;
  align-items: center
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 30px;
  align-items: center;
  width: 100%
}

.hero .this {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 14px
}

.hero .this .neon {
  color: var(--neon)
}

.hero h1 {
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(44px, 8.5vw, 96px);
  line-height: .95;
  letter-spacing: -1px;
  margin: 4px 0 6px
}

.hero h1 .l2 {
  color: var(--neon);
  text-shadow: 0 0 26px rgba(0, 255, 135, .35)
}

.hero .h1tag {
  display: block;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--muted);
  font-weight: 500
}

.hero .role {
  font-family: var(--mono);
  color: var(--dim);
  font-size: clamp(15px, 2.4vw, 21px);
  margin: 20px 0 30px
}

.hero .role .arrow {
  color: var(--neon)
}

.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap
}

.btn {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 10px;
  cursor: pointer;
  transition: .22s;
  border: 1px solid transparent;
  display: inline-flex;
  gap: 10px;
  align-items: center
}

.btn-primary {
  background: var(--neon);
  color: #04160c;
  box-shadow: 0 8px 26px -8px rgba(0, 255, 135, .55)
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 34px -8px rgba(0, 255, 135, .7)
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--txt)
}

.btn-ghost:hover {
  border-color: var(--neon);
  color: var(--neon);
  box-shadow: 0 0 0 1px var(--neon), 0 0 22px -6px rgba(0, 255, 135, .5)
}

.hero-badges {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 36px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted)
}

.hero-badges b {
  color: var(--txt)
}

.hero-badges span {
  display: flex;
  gap: 8px;
  align-items: center
}

.pulse {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 0 rgba(0, 255, 135, .6);
  animation: pulse 2s infinite
}

@keyframes pulse {
  70% {
    box-shadow: 0 0 0 8px rgba(0, 255, 135, 0)
  }

  100% {
    box-shadow: 0 0 0 0 rgba(0, 255, 135, 0)
  }
}

/* CV BADGE */
.cv-badge {
  position: relative;
  width: 230px;
  height: 230px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none
}

.cv-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  pointer-events: none
}

.cv-ring.r2 {
  inset: 18px;
  border-style: dashed;
  border-color: rgba(0, 255, 135, .25);
  animation: spin 18s linear infinite
}

.cv-ring.r3 {
  inset: 36px;
  border-color: rgba(14, 165, 233, .25);
  animation: spin 26s linear infinite reverse
}

@keyframes spin {
  to {
    transform: rotate(360deg)
  }
}

.cv-dot {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--neon);
  top: -4px;
  left: 50%;
  box-shadow: 0 0 12px var(--neon);
  pointer-events: none
}

.cv-core {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 30%, rgba(0, 255, 135, .12), var(--surface));
  border: 1px solid rgba(0, 255, 135, .4);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--neon);
  transition: .25s;
  cursor: pointer;
  position: relative;
  z-index: 1;
  pointer-events: auto
}

.cv-core:hover {
  box-shadow: 0 0 40px -6px rgba(0, 255, 135, .6);
  transform: scale(1.04)
}

/* CIRCUIT connector */
.circuit {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 0;
  pointer-events: none
}

.circuit path {
  fill: none;
  stroke: var(--neon);
  stroke-width: 1.6;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  filter: drop-shadow(0 0 5px rgba(0, 255, 135, .6));
  transition: stroke-dashoffset 1.6s ease
}

.circuit.drawn path {
  stroke-dashoffset: 0
}

.node {
  fill: var(--bg);
  stroke: var(--neon);
  stroke-width: 2;
  filter: drop-shadow(0 0 8px rgba(0, 255, 135, .8))
}

/* ABOUT timeline */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 50px;
  align-items: start;
  margin-top: 20px
}

.about-copy p {
  color: var(--dim);
  margin-bottom: 16px
}

.about-copy strong {
  color: var(--txt)
}

.tl {
  position: relative;
  padding-left: 38px
}

.tl::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--neon), var(--cyan), var(--border))
}

.tl-item {
  position: relative;
  padding-bottom: 30px
}

.tl-item:last-child {
  padding-bottom: 0
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -38px;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--neon);
  box-shadow: 0 0 14px rgba(0, 255, 135, .5);
  display: block
}

.tl-item .ph {
  position: absolute;
  left: -31px;
  top: 9px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--neon)
}

.tl-step {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px
}

.tl-item h4 {
  font-size: 17px;
  font-weight: 700
}

.tl-item .org {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 7px
}

.tl-item p {
  color: var(--dim);
  font-size: 14px
}

/* SKILLS bento */
.bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 20px
}

.cell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: .25s;
  position: relative;
  overflow: hidden
}

.cell::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(340px 180px at var(--mx, 50%) var(--my, 0%), rgba(0, 255, 135, .08), transparent 70%);
  opacity: 0;
  transition: .3s
}

.cell:hover {
  border-color: rgba(0, 255, 135, .4);
  transform: translateY(-4px)
}

.cell:hover::before {
  opacity: 1
}

.cell.span2 {
  grid-column: span 2
}

.cell h4 {
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--neon);
  margin-bottom: 16px;
  display: flex;
  gap: 9px;
  align-items: center
}

.cell h4 .n {
  color: var(--muted);
  font-weight: 400
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px
}

.chip {
  font-family: var(--mono);
  font-size: 12px;
  padding: 7px 12px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--dim);
  transition: .2s
}

.chip:hover {
  border-color: var(--neon);
  color: var(--neon);
  transform: translateY(-2px)
}

.chip.core {
  color: var(--txt);
  border-color: rgba(0, 255, 135, .3)
}

.chip.learn {
  border-style: dashed;
  color: var(--muted)
}

.chip.learn::after {
  content: " ⟳";
  color: #fbbf24
}

/* PROJECTS */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
  margin-top: 20px
}

.proj {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: .25s;
  position: relative;
  overflow: hidden
}

.proj::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), var(--cyan));
  opacity: 0;
  transition: .25s
}

.proj:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 255, 135, .4);
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, .8)
}

.proj:hover::after {
  opacity: 1
}

.proj.flag {
  grid-column: span 2;
  border-color: rgba(0, 255, 135, .35);
  background: linear-gradient(180deg, rgba(0, 255, 135, .03), var(--surface))
}

.proj-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px
}

.proj-ico {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--neon)
}

.proj-links {
  display: flex;
  gap: 14px;
  font-family: var(--mono);
  font-size: 13px
}

.proj-links a {
  color: var(--muted);
  transition: .2s;
  display: flex;
  gap: 5px;
  align-items: center
}

.proj-links a:hover {
  color: var(--neon)
}

.proj h3 {
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 6px
}

.flag-badge {
  font-family: var(--mono);
  font-size: 11px;
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, .35);
  border-radius: 6px;
  padding: 3px 9px;
  display: inline-block;
  margin-bottom: 12px
}

.proj p {
  color: var(--dim);
  font-size: 14.5px;
  margin-bottom: 14px;
  flex-grow: 1
}

.case {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 6px 0 16px
}

.case .block {
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 14px
}

.case .block .k {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--neon);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px
}

.case .block p {
  font-size: 13px;
  color: var(--dim);
  margin: 0
}

.proj-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 7px
}

.proj-stack span {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 5px 10px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  color: var(--cyan)
}

/* CONTACT */
.contact-head {
  text-align: center
}

.contact-head .sec-title::after {
  position: static;
  display: inline;
  margin-left: 6px
}

.nodes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  margin: 56px 0 40px
}

.node-btn {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 255, 135, .35);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
  transition: .28s;
  position: relative;
  background: radial-gradient(circle at 50% 30%, rgba(0, 255, 135, .05), transparent)
}

.node-btn .ic {
  font-size: 26px;
  color: var(--neon)
}

.node-btn .t {
  font-family: var(--mono)
}

.node-btn .t .b {
  color: var(--muted)
}

.node-btn:hover {
  transform: translateY(-6px) scale(1.03);
  border-color: var(--neon);
  box-shadow: 0 0 40px -8px rgba(0, 255, 135, .5);
  color: var(--txt)
}

.node-btn:nth-child(2) {
  margin-top: -26px
}

.node-btn:nth-child(3) {
  margin-top: 14px
}

.copy-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--dim);
  flex-wrap: wrap
}

.copy-btn {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--neon);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: .2s
}

.copy-btn:hover {
  border-color: var(--neon);
  box-shadow: 0 0 18px -6px rgba(0, 255, 135, .5)
}

form {
  max-width: 560px;
  margin: 44px auto 0;
  display: flex;
  flex-direction: column;
  gap: 14px
}

form .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px
}

form label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  display: block;
  margin-bottom: 6px
}

form input,
form textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--txt);
  font-family: var(--sans);
  font-size: 14.5px;
  width: 100%;
  transition: .2s
}

form input:focus,
form textarea:focus {
  outline: none;
  border-color: var(--neon);
  box-shadow: 0 0 0 3px rgba(0, 255, 135, .12)
}

form textarea {
  resize: vertical;
  min-height: 120px
}

.form-note {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  text-align: center
}

footer {
  border-top: 1px solid var(--border-soft);
  padding: 36px 0;
  margin-top: 30px
}

.foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted)
}

.foot a {
  color: var(--dim);
  transition: .2s
}

.foot a:hover {
  color: var(--neon)
}

/* Le contenu n'est masqué (pour l'animation) QUE si le JS est actif → jamais de page vide. */
html.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .6s ease, transform .6s ease
}

html.js .reveal.in {
  opacity: 1;
  transform: none
}

@media(max-width:900px) {

  .hero-grid,
  .about-grid {
    grid-template-columns: 1fr
  }

  .cv-badge {
    margin-top: 20px
  }

  .bento {
    grid-template-columns: repeat(2, 1fr)
  }

  .cell.span2 {
    grid-column: span 2
  }

  .proj.flag {
    grid-column: span 1
  }

  .case {
    grid-template-columns: 1fr
  }

  .nav-left,
  .nav-right .nav-item {
    display: none
  }

  .burger {
    display: block
  }

  .nav-inner {
    grid-template-columns: 1fr auto
  }

  .mobile-open {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 20px 26px;
    gap: 16px;
    z-index: 70
  }

  .circuit {
    display: none
  }

  section {
    padding: 80px 0
  }

  form .row {
    grid-template-columns: 1fr
  }
}

[data-lang="fr"] .en {
  display: none
}

[data-lang="en"] .fr {
  display: none
}

/* Accessibilité : si l'utilisateur a activé "réduire les animations", on montre le contenu
   instantanément (pas de saut), tout en gardant les décorations légères (halo/rotation). */
@media (prefers-reduced-motion: reduce) {
  html.js .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important
  }

  html.js .circuit path {
    transition: none !important
  }
}