:root {
  --deep: #0c2540;
  --mid: #123a5c;
  --mid-2: #16456b;
  --line: #5f95bd;
  --line-dim: #2a5478;
  --paper: #eef4fa;
  --paper-dim: #9fbdd6;
  --accent: #f0a83b;
  --accent-dim: #b97e2c;
  --stamp: #d8583f;
  --radius: 2px;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100%;
  background-color: var(--deep);
}

body {
  cursor: none;
  font-family: "IBM Plex Sans", sans-serif;
  line-height: 1.6;
  color: var(--paper);
  background-color: var(--deep);
}

.mono {
  font-family: "JetBrains Mono", monospace;
}
a {
  color: inherit;
  text-decoration: none;
}
::selection {
  background: var(--accent);
  color: var(--deep);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- NAV ---------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(12, 37, 64, 0.88);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line-dim);
}
nav.wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand .dot {
  width: 9px;
  height: 9px;
  background: var(--accent);
  border-radius: 1px;
  display: inline-block;
  transform: rotate(45deg);
}
.navlinks {
  display: flex;
  gap: 30px;
  font-size: 13px;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.04em;
}
.navlinks a {
  color: var(--paper-dim);
  position: relative;
  padding: 4px 0;
}
.navlinks a:hover {
  color: var(--paper);
}
.navlinks span {
  color: var(--accent);
}
.navlinks .menu-toggle {
  display: none;
}

/* ---------- SHEET LABEL (signature structural device) ---------- */
.sheet-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--paper-dim);
  letter-spacing: 0.1em;
  margin-bottom: 36px;
}
.sheet-label::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--line);
}
.sheet-label b {
  color: var(--accent);
  font-weight: 700;
}

section {
  position: relative;
  padding: 130px 0 100px;
}
section + section {
  border-top: 1px solid var(--line-dim);
}

/* ---------- HERO ---------- */
.hero {
  padding-top: 170px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.18em;
  margin-bottom: 22px;
}
h1 {
  font-family: "JetBrains Mono", monospace;
  font-weight: 800;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--paper);
}
h1 em {
  font-style: normal;
  color: var(--accent);
}
.role {
  margin-top: 22px;
  font-size: 19px;
  color: var(--paper-dim);
  font-family: "JetBrains Mono", monospace;
  font-weight: 500;
}
.pitch {
  margin-top: 24px;
  max-width: 46ch;
  color: var(--paper-dim);
  font-size: 16px;
}
.cta-row {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.05em;
  padding: 14px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn-solid {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--deep);
  font-weight: 700;
}
.btn-solid:hover {
  background: var(--paper);
  border-color: var(--paper);
}
.btn-ghost:hover {
  border-color: var(--paper);
  background: var(--mid-2);
}

.btn-download{
  color: var(--paper);
}

/* schema diagram */
.schema-box {
  border: 1px solid var(--line-dim);
  background: rgba(255, 255, 255, 0.02);
  padding: 18px;
  border-radius: var(--radius);
}
.schema-box svg {
  width: 100%;
  height: auto;
  display: block;
}
.schema-cap {
  margin-top: 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--paper-dim);
  display: flex;
  justify-content: space-between;
  letter-spacing: 0.05em;
}

/* ---------- STACK ---------- */
h2 {
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-intro {
  color: var(--paper-dim);
  max-width: 60ch;
  margin-bottom: 60px;
  font-size: 15.5px;
}

.layers {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border: 1px solid var(--line-dim);
}
.layer {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 26px 28px;
  background: var(--mid);
  border-top: 1px solid var(--line-dim);
  transition: background 0.2s ease;
}
.layer:first-child {
  border-top: none;
}
.layer:hover {
  background: var(--mid-2);
}
.layer-tag {
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 0.04em;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.layer-tag small {
  color: var(--paper-dim);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.06em;
  font-family: "JetBrains Mono", monospace;
}
.layer-detail {
  color: var(--paper-dim);
  font-size: 14.5px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
}
.layer-detail .chip {
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: var(--paper);
  border: 1px solid var(--line-dim);
  padding: 4px 10px;
  border-radius: var(--radius);
  white-space: nowrap;
}

.toolbelt {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.toolbelt .chip {
  border-color: var(--line-dim);
  color: var(--paper-dim);
}


/* ---------- TIMELINE ---------- */
.timeline {
  border-left: 2px solid var(--line-dim);
  margin-left: 6px;
  padding-left: 40px;
  display: flex;
  flex-direction: column;
  gap: 52px;
}
.tl-item {
  position: relative;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: -46px;
  top: 4px;
  width: 11px;
  height: 11px;
  background: var(--deep);
  border: 2px solid var(--accent);
  border-radius: 50%;
}
.tl-date {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.tl-item h3 {
  font-family: "JetBrains Mono", monospace;
  font-size: 18px;
  margin-bottom: 6px;
}
.tl-item .org {
  color: var(--paper-dim);
  font-size: 13.5px;
  margin-bottom: 10px;
  font-family: "JetBrains Mono", monospace;
}
.tl-item p {
  color: var(--paper-dim);
  font-size: 14.5px;
  max-width: 62ch;
}

/* ---------- CONTACT ---------- */
.contact-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: start;
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 34px;
  border-top: 1px solid var(--line-dim);
}
.contact-list a,
.contact-list .row {
  display: flex;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-dim);
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  color: var(--paper);
}
.contact-list a:hover span:last-child {
  color: var(--accent);
}
.contact-list span:first-child {
  color: var(--paper-dim);
}

.stamp {
  border: 2px solid var(--stamp);
  color: var(--stamp);
  border-radius: 50%;
  width: 168px;
  height: 168px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "JetBrains Mono", monospace;
  text-align: center;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  transform: rotate(-9deg);
  margin: 0 auto;
  position: relative;
  font-weight: 700;
  justify-self: center;
}
.stamp::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--stamp);
  border-radius: 50%;
}
.stamp-inner {
  padding: 20px;
}
.stamp-inner .big {
  display: block;
  font-size: 15px;
  margin: 6px 0;
}




@media (max-width: 860px) {
  .navlinks {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .layer {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .contact-wrap {
    grid-template-columns: 1fr;
  }
  .stamp {
    margin-top: 20px;
  }
}


/* mouse spriner */

/* spinner avec annimation 
.mouse-spinner {
  position: fixed;
  width: 25px;
  height: 25px;
  border: 4px solid transparent;
  border-top-color: #00ff99;
  border-right-color: #00ff99;

  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  animation: spin 0.8s linear infinite;
}


  @keyframes spin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}  */



 /* spinner cursor sans annimation */

 .mouse-spinner {
  position: fixed;
  width: 30px;
  height: 30px;
  border: 4px solid #00ff99;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
}

.mouse-spinner::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  background: #00ff99;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}


/* footer reseaux social */

footer {
  padding: 40px 0;
  text-align: center;
  color: var(--paper-dim);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.05em;
  border-top: 1px solid var(--line-dim);
}

/* .reseaux-social a {
  display: flex;
  align-items: center;
  opacity: 0.75;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.reseaux-social a:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.reseaux-social img {
  width: 22px;
  height: 22px;
  display: block;
} */

/* Responsive : centré en colonne sur mobile */
/* @media (max-width: 600px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
} */