:root{
  --radius: 18px;
  --max: 1120px;
  --shadow: 0 12px 32px rgba(0,0,0,0.18);
  --ease: cubic-bezier(.2,.8,.2,1);

  /* IT (clair) */
  --it-bg: #f6f8fc;
  --it-text: #0b1220;
  --it-muted: rgba(11,18,32,0.68);
  --it-line: rgba(11,18,32,0.14);
  --it-card: rgba(255,255,255,0.80);
  --it-accent1: #2563eb;
  --it-accent2: #06b6d4;

  /* LEGAL (sombre) */
  --legal-bg: #070b14;
  --legal-text: #eef2ff;
  --legal-muted: rgba(238,242,255,0.72);
  --legal-line: rgba(255,255,255,0.12);
  --legal-card: rgba(255,255,255,0.06);
  --legal-accent1: #7c3aed;
  --legal-accent2: #f59e0b;

  /* Runtime (piloté par data-theme) */
  --bg: var(--it-bg);
  --text: var(--it-text);
  --muted: var(--it-muted);
  --line: var(--it-line);
  --card: var(--it-card);
  --a1: var(--it-accent1);
  --a2: var(--it-accent2);
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 650ms var(--ease), color 650ms var(--ease);
}

body[data-theme="it"]{
  --bg: var(--it-bg);
  --text: var(--it-text);
  --muted: var(--it-muted);
  --line: var(--it-line);
  --card: var(--it-card);
  --a1: var(--it-accent1);
  --a2: var(--it-accent2);
}
body[data-theme="legal"]{
  --bg: var(--legal-bg);
  --text: var(--legal-text);
  --muted: var(--legal-muted);
  --line: var(--legal-line);
  --card: var(--legal-card);
  --a1: var(--legal-accent1);
  --a2: var(--legal-accent2);
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; text-underline-offset: 4px; }

.container{ max-width: var(--max); margin: 0 auto; padding: 22px 18px; }

/* Top */
.top{
  position: sticky; top: 0; z-index: 60;
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--bg), transparent 35%);
  border-bottom: 1px solid var(--line);
}
.top__inner{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand__mark{
  width: 12px; height: 12px; border-radius: 999px;
  background: linear-gradient(135deg, var(--a1), var(--a2));
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--a1), transparent 85%);
}
.brand__text{ font-weight: 950; letter-spacing: .2px; }

.nav{ display:flex; gap:14px; align-items:center; flex-wrap:wrap; }
.nav__link{ color: var(--muted); font-weight: 850; font-size: 14px; padding: 8px 10px; border-radius: 999px; }
.nav__link.is-active{ color: var(--text); background: color-mix(in oklab, var(--card), transparent 25%); border: 1px solid var(--line); }
.nav__cta{ color: var(--text); background: color-mix(in oklab, var(--card), transparent 20%); border: 1px solid var(--line); }

.top__tools{ display:flex; gap:8px; align-items:center; }
.progress{ height: 3px; background: color-mix(in oklab, var(--line), transparent 40%); }
.progress__bar{
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--a1), var(--a2));
  transition: width 120ms linear;
}

/* Buttons / chips */
.btn{
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--card), transparent 10%);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 900;
  font-size: 14px;
  cursor: pointer;
}
.btn--primary{
  border-color: color-mix(in oklab, var(--a1), transparent 35%);
  background: linear-gradient(135deg, color-mix(in oklab, var(--a1), white 12%), color-mix(in oklab, var(--a2), white 8%));
  color: #071022;
  box-shadow: var(--shadow);
}
body[data-theme="legal"] .btn--primary{ color: #0b1220; }
.btn--ghost{
  background: color-mix(in oklab, var(--card), transparent 25%);
}

.chip{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--card), transparent 25%);
  font-weight: 900;
  font-size: 13px;
  color: var(--muted);
}
.chip--btn{ cursor:pointer; }
.chip--btn.is-active{ color: var(--text); background: color-mix(in oklab, var(--card), transparent 5%); }

/* Hero */
.hero{
  background:
    radial-gradient(900px 600px at 10% 5%, color-mix(in oklab, var(--a1), transparent 75%), transparent 60%),
    radial-gradient(900px 600px at 80% 10%, color-mix(in oklab, var(--a2), transparent 78%), transparent 60%);
}
.hero__grid{
  display:grid; grid-template-columns: 1.5fr 0.9fr; gap: 16px; align-items: stretch;
}
@media (max-width: 920px){ .hero__grid{ grid-template-columns: 1fr; } }

.pill{
  display:inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in oklab, var(--card), transparent 20%);
  color: var(--muted);
  font-weight: 950;
  font-size: 13px;
  margin: 0 0 14px 0;
}

.hero__title{
  margin:0 0 10px 0;
  font-size: 44px;
  line-height: 1.1;
  letter-spacing: -0.6px;
}
@media (max-width: 560px){ .hero__title{ font-size: 34px; } }
.soft{
  background: linear-gradient(135deg, var(--text), color-mix(in oklab, var(--text), transparent 45%));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.hero__subtitle{ margin:0 0 14px 0; color: var(--muted); max-width: 78ch; }
.hero__kws{ display:flex; flex-wrap:wrap; gap:10px; font-weight: 850; color: color-mix(in oklab, var(--text), transparent 25%); }
.sep{ opacity: .35; }
.hero__actions{ display:flex; gap:10px; flex-wrap:wrap; margin: 18px 0 14px 0; }
.hero__mini{ display:flex; gap:12px; flex-wrap:wrap; margin-top: 10px; }
.mini{
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in oklab, var(--card), transparent 25%);
}
.mini__label{ color: var(--muted); font-weight: 950; font-size: 12px; }
.mini__value{ font-weight: 900; font-size: 14px; }

/* Cards */
.card{
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.10);
}
.card h3{ margin:0 0 8px 0; font-size: 16px; letter-spacing: -0.2px; }
.muted{ color: var(--muted); }

.profile{
  display:flex; flex-direction:column; gap:14px; justify-content: space-between;
}
.profile__avatar{
  width:100%;
  aspect-ratio: 16/9;
  border-radius: 16px;
  border: 1px solid var(--line);
  overflow:hidden;
  background: color-mix(in oklab, var(--card), transparent 15%);
}
.profile__avatar img{ width:100%; height:100%; object-fit: cover; display:block; }
.profile__name{ margin:0; font-size: 20px; }
.profile__role{ margin: 2px 0 0 0; color: var(--muted); font-weight: 900; }
.profile__meta{ margin: 10px 0 0 0; color: var(--muted); }
.profile__links{ display:flex; gap: 8px; flex-wrap: wrap; }

/* Sections */
.section{ padding: 18px 0; }
.section--alt{
  background: color-mix(in oklab, var(--bg), var(--text) 3%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section__head{ margin-bottom: 12px; }
.section__head h2{ margin:0 0 4px 0; font-size: 18px; letter-spacing: -0.2px; }
.section__head p{ margin:0; color: var(--muted); }

.grid2{ display:grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid3{ display:grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
@media (max-width: 920px){ .grid2,.grid3{ grid-template-columns: 1fr; } }

/* Stack (Scroll from under) */
.stack{ position: relative; height: 200vh; }
.panel{
  height: 100vh;
  position: sticky;
  border-top: 1px solid var(--line);
}
.panel__inner{ padding-top: 22px; padding-bottom: 26px; }
.panel__head{
  display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
  margin-bottom: 12px;
}
.panel__eyebrow{ margin:0; color: var(--muted); font-weight: 950; font-size: 12px; }
.panel__title{ margin:0; font-size: 28px; letter-spacing: -0.4px; }
.panel__lead{ margin: 8px 0 0 0; color: var(--muted); max-width: 85ch; }
.panel__cta{ margin-top: 14px; display:flex; gap:10px; flex-wrap:wrap; }
.hint{ margin-top: 14px; }

/* IT panel */
.panel--it{
  top: 0;
  z-index: 2;
  background: var(--it-bg);
  color: var(--it-text);
  border-top: 0;
}
.panel--it .card{ background: rgba(255,255,255,0.85); border-color: rgba(11,18,32,0.14); }
.panel--it .muted{ color: rgba(11,18,32,0.68); }

/* LEGAL panel (under) */
.panel--legal{
  bottom: 0;          /* clé de l’effet */
  z-index: 1;         /* plus bas que la 1ère section */
  background: var(--legal-bg);
  color: var(--legal-text);
}
.panel--legal .card{ background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); }
.panel--legal .muted{ color: rgba(238,242,255,0.72); }

.badge{
  border: 1px solid rgba(11,18,32,0.14);
  background: rgba(255,255,255,0.75);
  color: rgba(11,18,32,0.72);
  padding: 8px 10px;
  border-radius: 999px;
  font-weight: 950;
  font-size: 12px;
}
.badge--dark{
  border-color: rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: rgba(238,242,255,0.78);
}

/* Timeline */
.filters{ display:flex; gap:8px; flex-wrap:wrap; margin: 12px 0; }
.timeline{ display:grid; gap: 12px; }
.titem{
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--card), transparent 15%);
}
.titem__when{ font-weight: 950; font-size: 12px; color: color-mix(in oklab, var(--text), transparent 35%); }
.titem__what{ font-weight: 950; margin-top: 3px; }
.titem__where{ color: var(--muted); margin-top: 3px; }

/* Details / accordions */
.pdetails{ margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--line); }
.pdetails summary{
  list-style:none; cursor:pointer; user-select:none;
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 10px; border-radius:999px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card), transparent 20%);
  font-weight: 950; font-size: 13px; color: color-mix(in oklab, var(--text), transparent 15%);
}
.pdetails summary::-webkit-details-marker{ display:none; }
.pdetails summary::after{ content:"▾"; opacity:.75; }
.pdetails[open] summary::after{ content:"▴"; }
.bullets{ margin: 12px 0 0 0; padding-left: 18px; color: var(--muted); }
.bullets li{ margin: 6px 0; }

/* Footer */
.footer{
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
}

/* Reveal animation */
.reveal{
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
}
.reveal.is-in{
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; scroll-behavior: auto !important; }
  .reveal{ opacity: 1 !important; transform: none !important; }
}