/* Palette tirée du logo n'boost : noir #1E1E1E, or #C3B461, blanc.
   Layout idea: gros blocs alternés blanc / noir, titres très lourds, or réservé aux accents et aux boutons. */
:root {
  --paper: #FFFFFF;
  --surface: #F5F4EC;
  --ink: #1E1E1E;
  --muted: #5C5B52;
  --line: #E3E1D3;
  --gold: #C3B461;
  --accent: #C3B461;
  --on-accent: #1E1E1E;
  --accent-text: #7C6F22;
  --display: "Montserrat", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --body: "Figtree", "Segoe UI", system-ui, -apple-system, sans-serif;
  --radius: 18px;
  --wrap: 1160px;
  color-scheme: light;
}
/* La page Fosfor garde un monde sombre, avec les mêmes couleurs de marque. */
:root[data-world="space"] {
  --paper: #121212; --surface: #1E1E1E; --ink: #F4F2E8; --muted: #E4E1D3;
  --line: #34332C; --accent: #C3B461; --on-accent: #1E1E1E; --accent-text: #D7C97A;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.6 var(--body); -webkit-font-smoothing: antialiased; }
img, canvas, svg { max-width: 100%; }
a { color: var(--accent-text); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.08; letter-spacing: -0.02em; text-wrap: balance; margin: 0; }
h2 { font-size: clamp(1.9rem, 3.8vw, 2.9rem); font-weight: 800; }
h3 { font-size: 1.3rem; font-weight: 700; }
p { margin: 0; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.eyebrow { font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-text); }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 58ch; }
section { padding: 80px 0; }

/* En-tête */
.site-head { display: flex; align-items: center; justify-content: space-between; gap: 14px 28px; flex-wrap: wrap; padding: 20px 0; }
.logo { display: inline-flex; }
.logo img { height: 44px; width: auto; display: block; }
.nav { display: flex; gap: 6px 24px; flex-wrap: wrap; align-items: center; font-weight: 600; font-size: .98rem; }
.nav a { color: var(--ink); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--gold); }
.nav a.btn { border-bottom: 2px solid var(--gold); padding: .6rem 1.1rem; color: var(--on-accent); }

/* Boutons */
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  padding: .9rem 1.5rem; border-radius: 999px; border: 2px solid var(--gold);
  background: var(--gold); color: var(--on-accent); font: 700 1rem/1.2 var(--body); text-decoration: none;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }
.btn.dark { background: var(--ink); color: #fff; border-color: var(--ink); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* Formulaires */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-weight: 700; font-size: .95rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: .8rem .95rem; border-radius: 10px; border: 1.5px solid var(--line);
  background: var(--paper); color: var(--ink); font: inherit;
}
.field textarea { min-height: 130px; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.status { min-height: 1.5em; font-size: .95rem; color: var(--muted); }
.status.ok { color: var(--accent-text); font-weight: 700; }

/* Pied de page */
.site-foot { background: #1E1E1E; color: #FFFFFF; padding: 36px 0 48px; font-size: .95rem; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 14px 32px; justify-content: space-between; align-items: center; }
.site-foot a { color: #FFFFFF; text-decoration: underline; text-underline-offset: 3px; }
.site-foot span { color: #FFFFFF; }
.site-foot img { height: 34px; width: auto; display: block; }

mark.todo { background: #FFE27A; color: #3a2e00; padding: 0 .25em; border-radius: 4px; }

@media (max-width: 720px) {
  section { padding: 56px 0; }
  .row2 { grid-template-columns: 1fr; }
}