/* ============================================================
   Chamilabs — feuille de style unique
   Direction : « Blueprint / Ingénierie »
   ============================================================ */

/* ---- Reset léger ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

/* ---- Tokens ---- */
:root {
  --blueprint:   #0D1B2E;
  --blueprint-2: #12233A;
  --blueprint-3: #16294480;
  --grid:        rgba(125, 170, 220, 0.09);
  --grid-strong: rgba(125, 170, 220, 0.16);
  --ink:         #E9EFF6;
  --muted:       #91A6BE;
  --line:        #3E6B99;
  --accent:      #F5B23D;
  --accent-dim:  rgba(245, 178, 61, 0.14);

  --f-display: "IBM Plex Sans Condensed", "Arial Narrow", system-ui, sans-serif;
  --f-body:    "IBM Plex Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --f-mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1120px;
  --gutter: clamp(20px, 5vw, 56px);
}

/* ---- Base ---- */
html { scroll-behavior: smooth; }
body {
  font-family: var(--f-body);
  color: var(--ink);
  background-color: var(--blueprint);
  /* Grille de plan technique */
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    linear-gradient(var(--grid-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-strong) 1px, transparent 1px);
  background-size:
    28px 28px, 28px 28px,
    140px 140px, 140px 140px;
  background-position: -1px -1px;
  line-height: 1.65;
  font-size: clamp(15px, 0.5vw + 14px, 17px);
  overflow-x: hidden;
}

/* ---- Utilitaires de largeur ---- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

/* ---- Cartouche / eyebrow mono ---- */
.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: "//";
  color: var(--line);
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
  background: linear-gradient(180deg, rgba(13,27,46,0.92), rgba(13,27,46,0.62));
  border-bottom: 1px solid var(--grid-strong);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 66px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.22rem;
  letter-spacing: 0.01em;
}
.brand .mark { width: 22px; height: 22px; flex: none; }
.brand b { color: var(--accent); font-weight: 600; }

.nav-main { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.nav-main a {
  font-family: var(--f-mono);
  font-size: 0.82rem;
  color: var(--muted);
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  transition: color .18s, border-color .18s;
}
.nav-main a:hover, .nav-main a:focus-visible { color: var(--ink); border-color: var(--accent); }

/* Sélecteur de langue */
.lang {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  font-family: var(--f-mono);
  font-size: 0.72rem;
}
.lang button {
  padding: 5px 9px;
  color: var(--muted);
  letter-spacing: 0.06em;
  transition: background .18s, color .18s;
}
.lang button[aria-pressed="true"] { background: var(--accent); color: #10203a; font-weight: 600; }
.lang button + button { border-left: 1px solid var(--line); }

/* Burger */
.burger { display: none; }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; padding: clamp(64px, 12vh, 128px) 0 clamp(48px, 8vh, 88px); }
.hero-inner { position: relative; max-width: 900px; }

/* Lignes de cote (dimension lines) */
.dim {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--line);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
}
.dim::before, .dim::after { content: ""; height: 1px; background: var(--line); flex: none; }
.dim::before { width: 26px; position: relative; }
.dim span::before { content: "├"; }

.hero h1 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(2.3rem, 6vw, 4.35rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 20px 0 0;
  text-wrap: balance;
}
.hero h1 .hl { color: var(--accent); }
.hero .lead {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.4vw, 1.22rem);
  max-width: 60ch;
  margin-top: 24px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--f-mono);
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  padding: 12px 20px;
  border-radius: 5px;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: transform .16s, background .18s, border-color .18s, color .18s;
}
.btn .arrow { transition: transform .18s; }
.btn:hover .arrow, .btn:focus-visible .arrow { transform: translateX(4px); }
.btn:hover, .btn:focus-visible { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: #11223c; border-color: var(--accent); font-weight: 600; }
.btn-primary:hover, .btn-primary:focus-visible { filter: brightness(1.07); }

/* Coordonnées d'angle décoratives du hero */
.corner-tag {
  position: absolute;
  font-family: var(--f-mono);
  font-size: 0.64rem;
  color: var(--line);
  letter-spacing: 0.1em;
}
.corner-tag.tr { top: 4px; right: 0; }

/* ============================================================
   Sections génériques
   ============================================================ */
.section { padding: clamp(56px, 9vh, 104px) 0; position: relative; }
.section-head { margin-bottom: 44px; max-width: 62ch; }
.section-head h2 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.08;
  margin-top: 14px;
  letter-spacing: -0.005em;
}
.section-head p { color: var(--muted); margin-top: 14px; }
.rule { height: 1px; background: var(--grid-strong); border: 0; }

/* ---- Cartes services ---- */
.grid-services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--grid-strong);
  border: 1px solid var(--grid-strong);
  border-radius: 8px;
  overflow: hidden;
}
.card {
  background: var(--blueprint);
  padding: 30px 26px 32px;
  position: relative;
  transition: background .2s;
}
.card:hover { background: var(--blueprint-2); }
.card .tag {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--accent-dim);
  border-radius: 3px;
  margin-bottom: 20px;
}
.card h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.32rem;
  line-height: 1.15;
}
.card p { color: var(--muted); margin-top: 12px; font-size: 0.96rem; }
.card ul { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.card ul li {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--grid-strong);
  border-radius: 3px;
  padding: 3px 8px;
}

/* ============================================================
   Signature : schéma à nœuds (parcours)
   ============================================================ */
.schematic { margin-top: 30px; }
.schematic svg { width: 100%; height: auto; overflow: visible; }
.node-label-title { font-family: var(--f-display); font-weight: 600; fill: var(--ink); }
.node-label-sub  { font-family: var(--f-mono); fill: var(--muted); }
.node-year       { font-family: var(--f-mono); fill: var(--line); }
.connector { stroke: var(--line); stroke-width: 2; fill: none; }
.node-dot { fill: var(--blueprint); stroke: var(--line); stroke-width: 2; }
.node-dot.active { fill: var(--accent); stroke: var(--accent); }
.signal { stroke: var(--accent); stroke-width: 2.5; fill: none; stroke-linecap: round; }

/* Version texte / cartes du parcours (mobile + fallback accessible) */
.timeline { margin-top: 8px; display: grid; gap: 1px; background: var(--grid-strong); border: 1px solid var(--grid-strong); border-radius: 8px; overflow: hidden; }
.tl-item { background: var(--blueprint); padding: 22px 24px; display: grid; grid-template-columns: 128px 1fr; gap: 18px; align-items: baseline; }
.tl-item:hover { background: var(--blueprint-2); }
.tl-when { font-family: var(--f-mono); font-size: 0.78rem; color: var(--accent); }
.tl-role { font-family: var(--f-display); font-weight: 600; font-size: 1.16rem; }
.tl-org { color: var(--muted); }
.tl-item.now .tl-when { color: var(--accent); }
.tl-item.now .tl-role::after { content: "●"; color: var(--accent); font-size: 0.6em; vertical-align: middle; margin-left: 8px; }

.bio { color: var(--muted); max-width: 66ch; margin-top: 34px; }
.bio strong { color: var(--ink); font-weight: 600; }
.stats { display: flex; flex-wrap: wrap; gap: 34px; margin-top: 30px; }
.stat b { font-family: var(--f-display); font-weight: 600; font-size: 2rem; color: var(--ink); display: block; line-height: 1; }
.stat span { font-family: var(--f-mono); font-size: 0.72rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }

/* ============================================================
   Contact
   ============================================================ */
.contact-box {
  border: 1px solid var(--grid-strong);
  border-radius: 10px;
  padding: clamp(28px, 5vw, 48px);
  background: linear-gradient(160deg, var(--blueprint-2), var(--blueprint));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.contact-box h2 { font-family: var(--f-display); font-weight: 600; font-size: clamp(1.6rem, 3vw, 2.3rem); }
.contact-box p { color: var(--muted); margin-top: 8px; }
.contact-mail { font-family: var(--f-mono); font-size: 0.9rem; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--grid-strong);
  margin-top: 20px;
  padding: 46px 0 40px;
}
.site-footer .wrap { display: grid; gap: 24px; }
.foot-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: flex-start; }
.foot-links { display: flex; flex-wrap: wrap; gap: 18px; }
.foot-links a, .foot-legal a {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition: color .18s, border-color .18s;
}
.foot-links a:hover, .foot-legal a:hover { color: var(--ink); border-color: var(--accent); }
.foot-legal {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--line);
  line-height: 1.9;
  border-top: 1px dashed var(--grid-strong);
  padding-top: 20px;
}
.foot-legal .sep { color: var(--grid-strong); margin: 0 8px; }

/* ============================================================
   Pages légales / contenu long
   ============================================================ */
.doc { padding: clamp(48px, 8vh, 88px) 0 80px; }
.doc-head { max-width: 70ch; margin-bottom: 40px; }
.doc-head h1 {
  font-family: var(--f-display); font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.04; margin-top: 14px;
}
.doc-meta { font-family: var(--f-mono); font-size: 0.74rem; color: var(--muted); margin-top: 16px; }
.prose { max-width: 74ch; }
.prose h2 {
  font-family: var(--f-display); font-weight: 600; font-size: 1.5rem;
  margin: 46px 0 4px; padding-top: 22px; border-top: 1px solid var(--grid-strong);
  display: flex; align-items: baseline; gap: 12px;
}
.prose h2 .num { font-family: var(--f-mono); font-size: 0.8rem; color: var(--accent); }
.prose h3 { font-family: var(--f-display); font-weight: 600; font-size: 1.14rem; margin: 26px 0 6px; }
.prose p, .prose li { color: #c3d0df; }
.prose p { margin-top: 12px; }
.prose ul { margin-top: 12px; display: grid; gap: 8px; }
.prose ul li { position: relative; padding-left: 20px; }
.prose ul li::before { content: "›"; position: absolute; left: 4px; color: var(--accent); }
.prose a { color: var(--accent); border-bottom: 1px solid var(--accent-dim); }
.prose a:hover { border-color: var(--accent); }
.prose strong { color: var(--ink); }
.data-table {
  width: 100%; border-collapse: collapse; margin-top: 18px;
  font-size: 0.92rem; border: 1px solid var(--grid-strong); border-radius: 6px; overflow: hidden;
}
.data-table th, .data-table td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--grid-strong); vertical-align: top; }
.data-table th { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); width: 38%; font-weight: 500; }
.data-table tr:last-child th, .data-table tr:last-child td { border-bottom: 0; }
.callout {
  margin-top: 22px; padding: 16px 18px; border-left: 3px solid var(--accent);
  background: var(--accent-dim); border-radius: 0 6px 6px 0;
  font-size: 0.92rem; color: #d6e0ec;
}

.back-home {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: 0.8rem; color: var(--muted); margin-bottom: 4px;
}
.back-home:hover { color: var(--accent); }

/* ---- Page GoalClash spécifique ---- */
.gc-hero { position: relative; }
.gc-badge {
  display: inline-block; font-family: var(--f-mono); font-size: 0.7rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent);
  border: 1px solid var(--accent-dim); padding: 4px 10px; border-radius: 20px;
}
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; margin-top: 12px; }
.feat { border: 1px solid var(--grid-strong); border-radius: 8px; padding: 22px; background: var(--blueprint-3); }
.feat h3 { font-family: var(--f-display); font-weight: 600; font-size: 1.1rem; }
.feat .k { font-family: var(--f-mono); color: var(--accent); font-size: 1.5rem; }
.feat p { color: var(--muted); font-size: 0.92rem; margin-top: 8px; }
.stack-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.stack-list li { font-family: var(--f-mono); font-size: 0.76rem; color: var(--muted); border: 1px solid var(--grid-strong); border-radius: 4px; padding: 5px 10px; }

/* ============================================================
   i18n : blocs FR / EN
   ============================================================ */
[data-i18n] { display: none; }
html[lang="fr"] [data-i18n="fr"] { display: revert; }
html[lang="en"] [data-i18n="en"] { display: revert; }
/* cas particuliers : rétablir le display voulu quand l'élément a son propre style */
html[lang="fr"] .card .tag[data-i18n="fr"],
html[lang="en"] .card .tag[data-i18n="en"] { display: inline-block; }
/* éléments SVG traduits (labels du schéma) */
html[lang="fr"] text[data-i18n="fr"],
html[lang="en"] text[data-i18n="en"] { display: block; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 760px) {
  .nav-main .nav-links {
    position: fixed; inset: 66px 0 auto 0;
    background: var(--blueprint); border-bottom: 1px solid var(--grid-strong);
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 8px var(--gutter) 18px; display: none;
  }
  .nav-main .nav-links.open { display: flex; }
  .nav-main .nav-links a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--grid-strong); }
  .burger {
    display: inline-flex; flex-direction: column; gap: 4px; padding: 8px;
  }
  .burger span { width: 22px; height: 2px; background: var(--ink); transition: .2s; }
  .tl-item { grid-template-columns: 1fr; gap: 4px; }
  .schematic.desktop-only { display: none; }
}
@media (min-width: 761px) {
  .timeline.mobile-only { display: none; }
}

/* ============================================================
   Focus & accessibilité
   ============================================================ */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.skip {
  position: absolute; left: -9999px; top: 0; background: var(--accent); color: #11223c;
  padding: 10px 16px; font-family: var(--f-mono); font-size: 0.8rem; z-index: 100; border-radius: 0 0 6px 0;
}
.skip:focus { left: 0; }

/* ============================================================
   Motion
   ============================================================ */
@keyframes dash { to { stroke-dashoffset: 0; } }
@keyframes riseIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes gridIn { from { opacity: 0; } to { opacity: 1; } }

.reveal { opacity: 0; animation: riseIn .7s cubic-bezier(.2,.7,.2,1) forwards; }
.reveal.d1 { animation-delay: .08s; }
.reveal.d2 { animation-delay: .18s; }
.reveal.d3 { animation-delay: .30s; }
.reveal.d4 { animation-delay: .42s; }

.signal {
  stroke-dasharray: 120 900;
  stroke-dashoffset: 1020;
  animation: dash 2.4s ease-out .3s forwards;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; animation: none; }
  .signal { display: none; }
  .btn, .btn .arrow, .card, .nav-main a { transition: none; }
}