:root {
  --bg: #0c121c;
  --ink: #eef2f8;
  --muted: #96a3b8;
  --card: rgba(22, 31, 46, 0.88);
  --card-border: rgba(255, 255, 255, 0.08);
  --logo-bg: #101827;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.35), 0 12px 24px rgba(0, 0, 0, 0.4), 0 28px 56px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 3px 6px rgba(0, 0, 0, 0.4), 0 18px 36px rgba(0, 0, 0, 0.5), 0 36px 72px rgba(0, 0, 0, 0.45);
  --nav-bg: rgba(18, 26, 40, 0.75);
  --blob1: #1f6bff;
  --blob2: #ff6a1a;
  --blob3: #14a37f;
  --blob-opacity: 0.32;
  --badge-parrain: #8dbcff;
  --badge-annonce: #ffb27a;
  --c-parrain-a: #2f80ff;
  --c-parrain-b: #1646c4;
  --c-annonce-a: #ff7a1a;
  --c-annonce-b: #e04a12;
  --c-btn: #14a37f;
  --c-contact: #1fb6d5;
  --c-info: #8b7bff;
  --c-cs2: #f2c230;
  --on-cs2: #1a1400;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #e5e9f0;
    --ink: #0e1624;
    --muted: #566277;
    --card: rgba(255, 255, 255, 0.94);
    --card-border: rgba(255, 255, 255, 0.9);
    --logo-bg: #ffffff;
    --shadow: 0 1px 2px rgba(14, 22, 36, 0.08), 0 10px 22px rgba(14, 22, 36, 0.1), 0 26px 52px rgba(14, 22, 36, 0.1);
    --shadow-hover: 0 2px 4px rgba(14, 22, 36, 0.1), 0 16px 32px rgba(14, 22, 36, 0.17), 0 34px 68px rgba(14, 22, 36, 0.14);
    --nav-bg: rgba(255, 255, 255, 0.8);
    --blob-opacity: 0.4;
    --badge-parrain: #1646c4;
    --badge-annonce: #b8420a;
    --c-parrain-a: #1f6bff;
    --c-parrain-b: #1646c4;
    --c-annonce-a: #f26a0d;
    --c-annonce-b: #d1420c;
    --c-btn: #0d8a6a;
    --c-contact: #0e8fb0;
    --c-info: #6b5ce7;
    --c-cs2: #d9a400;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}
.blob {
  position: fixed;
  z-index: 0;
  border-radius: 50%;
  filter: blur(80px);
  opacity: var(--blob-opacity);
  pointer-events: none;
  animation: flotte 24s ease-in-out infinite alternate;
}
.blob.b1 { width: 30rem; height: 30rem; background: var(--blob1); top: -10rem; left: -10rem; }
.blob.b2 { width: 24rem; height: 24rem; background: var(--blob2); top: 45%; right: -10rem; animation-duration: 30s; animation-delay: -7s; }
.blob.b3 { width: 22rem; height: 22rem; background: var(--blob3); bottom: -9rem; left: 10%; animation-duration: 27s; animation-delay: -13s; }
@keyframes flotte {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(3rem, 2.5rem, 0) scale(1.12); }
}
.wrap { position: relative; z-index: 1; max-width: 46rem; margin: 0 auto; padding: 0 1.25rem 4rem; }

/* Logo FM : anneau degrade bleu-orange */
.fm {
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 3px solid transparent;
  background:
    linear-gradient(var(--logo-bg), var(--logo-bg)) padding-box,
    linear-gradient(135deg, var(--c-parrain-a), var(--c-annonce-a)) border-box;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.04em;
}
.fm { overflow: hidden; }
.fm img { width: 100%; height: 100%; object-fit: cover; display: block; }
.fm.petit { width: 2.4rem; height: 2.4rem; font-size: 0.9rem; border-width: 2px; }
.fm.grand {
  width: 7.5rem; height: 7.5rem; font-size: 2.7rem; border-width: 4px; margin: 0 auto;
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--c-parrain-a) 12%, transparent), 0 18px 48px color-mix(in srgb, var(--c-annonce-a) 28%, transparent);
}

.topbar {
  position: sticky;
  top: 0.9rem;
  z-index: 10;
  margin-top: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0.5rem 0.45rem 0.6rem;
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 0.65rem; font-weight: 800; letter-spacing: -0.01em; color: inherit; text-decoration: none; }
nav { display: flex; gap: 0.25rem; }
nav a {
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  border-bottom: 2px solid transparent;
  transition: background 0.2s;
}
nav a.i { border-bottom-color: var(--c-info); }
nav a.g { border-bottom-color: var(--c-cs2); }
nav a.c { border-bottom-color: var(--c-contact); }
nav a[aria-current="page"] { background: color-mix(in srgb, var(--ink) 12%, transparent); }
nav a.p { border-bottom-color: var(--c-parrain-a); }
nav a.a { border-bottom-color: var(--c-annonce-a); }
nav a:hover { background: color-mix(in srgb, var(--ink) 10%, transparent); }

/* Profil */
.hero { text-align: center; padding-top: 3rem; scroll-margin-top: 6rem; }
h1 { margin: 1.5rem 0 0; font-size: clamp(2rem, 6vw, 2.9rem); line-height: 1.1; letter-spacing: -0.035em; font-weight: 800; }
.chips { list-style: none; margin: 1.25rem auto 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; max-width: 36rem; }
.chips li {
  padding: 0.3rem 0.75rem;
  border-radius: 8px;
  background: var(--card);
  border: 1px solid var(--card-border);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}
.boutons { list-style: none; margin: 1.75rem 0 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 0.7rem; }
.pill {
  display: inline-block;
  padding: 0.7rem 1.2rem;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-bottom: 3px solid var(--c-btn);
  box-shadow: var(--shadow);
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.pill:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.pill:focus-visible { outline: 3px solid var(--c-btn); outline-offset: 3px; }

section { margin-top: 3.5rem; scroll-margin-top: 6rem; }
section.parrain { --a: var(--c-parrain-a); --b: var(--c-parrain-b); --badge: var(--badge-parrain); }
section.annonce { --a: var(--c-annonce-a); --b: var(--c-annonce-b); --badge: var(--badge-annonce); }
h2 {
  margin: 0;
  padding-left: 0.8rem;
  border-left: 5px solid var(--a);
  font-size: 1.4rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 800;
}
.intro { margin: 0.6rem 0 1.4rem; padding-left: calc(0.8rem + 5px); color: var(--muted); font-size: 0.925rem; max-width: 40rem; }
ul.liste { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.1rem 1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.row::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--a), var(--b));
}
.row:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
a.row:focus-visible, .btn:focus-visible, nav a:focus-visible, .brand:focus-visible { outline: 3px solid var(--a, var(--c-parrain-a)); outline-offset: 3px; }
.avatar {
  flex: none;
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--a), var(--b));
  color: #fff;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 8px 16px color-mix(in srgb, var(--a) 40%, transparent);
}
.text { flex: 1; min-width: 0; }
.name { display: block; font-weight: 700; font-size: 1.05rem; line-height: 1.35; }
.note { display: block; color: var(--muted); font-size: 0.9rem; margin-top: 0.1rem; }
.badge {
  flex: none;
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  background: color-mix(in srgb, var(--a) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--a) 40%, transparent);
  color: var(--badge);
  font-weight: 700;
  font-size: 0.875rem;
  white-space: nowrap;
}
.code {
  flex: none;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  border: 1px dashed color-mix(in srgb, var(--a) 60%, transparent);
  background: color-mix(in srgb, var(--a) 10%, transparent);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-weight: 700;
  font-size: 0.95rem;
  user-select: all;
}
.btn {
  flex: none;
  padding: 0.55rem 1.1rem;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--a), var(--b));
  color: #fff;
  font: inherit;
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 6px 14px color-mix(in srgb, var(--a) 35%, transparent);
}
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: flex-end; }
.empty { color: var(--muted); padding: 0.5rem 0.25rem; }
footer { margin-top: 3.5rem; color: var(--muted); font-size: 0.85rem; max-width: 38rem; }
.pill.info { border-bottom-color: var(--c-info); }
.pill.cs2 { border-bottom-color: var(--c-cs2); }
.pill.principal {
  background: linear-gradient(135deg, var(--c-contact), #0b6f9a);
  border-color: transparent;
  color: #fff;
}
section.contact { --a: var(--c-contact); --b: #0b6f9a; }
.ico {
  flex: none;
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  background: color-mix(in srgb, var(--a) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--a) 40%, transparent);
}
.retour { margin-top: 2.5rem; text-align: center; }
/* Pages Informatique et CS2 */
body[data-section="info"] { --a: var(--c-info); --b: #5a49d6; --badge: #c3bbff; }
body[data-section="cs2"] { --a: var(--c-cs2); --b: #d98f00; --badge: #ffd966; }
@media (prefers-color-scheme: light) {
  body[data-section="info"] { --badge: #4b3dc2; }
  body[data-section="cs2"] { --badge: #7a5600; }
}
body[data-section="cs2"] .btn, body[data-section="cs2"] .cats button[aria-pressed="true"] { color: var(--on-cs2); }
.compact { padding-top: 2.5rem; }
.outils { margin-top: 2rem; display: grid; gap: 0.9rem; }
.recherche {
  width: 100%;
  padding: 0.8rem 1rem;
  font: inherit;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.recherche:focus-visible { outline: 3px solid var(--a); outline-offset: 2px; }
.cats { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cats button {
  font: inherit;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 0.4rem 0.9rem;
}
.cats button:hover { border-color: var(--a); }
.cats button[aria-pressed="true"] { background: linear-gradient(135deg, var(--a), var(--b)); border-color: transparent; color: #fff; }
.cats button:focus-visible { outline: 3px solid var(--a); outline-offset: 2px; }
.compte { margin: 1.25rem 0 0.75rem; color: var(--muted); font-size: 0.9rem; }
details.fiche {
  position: relative;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
details.fiche::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--a), var(--b));
}
details.fiche > summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 3rem 1rem 1.35rem;
  position: relative;
}
details.fiche > summary::-webkit-details-marker { display: none; }
details.fiche > summary::after {
  content: "";
  position: absolute;
  right: 1.25rem;
  top: 1.45rem;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}
details.fiche[open] > summary::after { transform: rotate(225deg); top: 1.75rem; }
details.fiche > summary:focus-visible { outline: 3px solid var(--a); outline-offset: -3px; }
.tete { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; }
.titre { font-weight: 700; font-size: 1.05rem; line-height: 1.35; }
.tete .badge { padding: 0.15rem 0.6rem; font-size: 0.8rem; }
details.fiche > summary .note { margin-top: 0.2rem; }
.corps { padding: 0 1.35rem 1.2rem 1.35rem; display: grid; gap: 0.9rem; }
.cmd { display: grid; gap: 0.5rem; }
.cmd pre {
  margin: 0;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 70%, #000);
  border: 1px solid var(--card-border);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}
@media (prefers-color-scheme: light) { .cmd pre { background: #eef1f6; } }
.cmd .btn { justify-self: end; }
.btn.petit { padding: 0.4rem 0.85rem; font-size: 0.85rem; }
.btn.discret {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--card-border);
  box-shadow: none;
}
.details { margin: 0; white-space: pre-wrap; color: var(--ink); line-height: 1.6; }
.fiche-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
@media (max-width: 36rem) {
  .topbar { position: static; flex-wrap: wrap; padding: 0.5rem; }
  .brand { padding-left: 0.1rem; }
  nav { width: 100%; flex-wrap: wrap; justify-content: center; gap: 0.15rem; }
  nav a { flex: 1 1 auto; text-align: center; padding: 0.5rem 0.55rem; font-size: 0.85rem; }
  .row { flex-wrap: wrap; }
  .text { flex-basis: calc(100% - 4rem); }
  .badge, .code { margin-left: 4rem; }
  .btn, .actions { margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .blob { animation: none; }
  .row, .pill, nav a { transition: none; }
  .row:hover, .pill:hover { transform: none; }
  html { scroll-behavior: auto; }
}