/* ============================================================
   Forces Françaises du Numérique — Site stylesheet
   Production recreation of ui_kits/site/index.html (Claude Design handoff).
   Static HTML/CSS/JS. Self-hosted fonts. No external dependencies.
   ============================================================ */

@import url("./fonts.css");

/* ============================================================
   TOKENS
   ============================================================ */
:root {
  /* ---- Blue scale (brand spine — deep royal navy) ---- */
  --ffn-blue-50:  #EDF1FB;
  --ffn-blue-100: #D8E1F7;
  --ffn-blue-200: #B3C4EF;
  --ffn-blue-300: #8AA3E4;
  --ffn-blue-400: #5E78D6;
  --ffn-blue-500: #2F4FC4;
  --ffn-blue-600: #1F3BA8;  /* primary interactive */
  --ffn-blue-700: #182E86;
  --ffn-blue-800: #122463;
  --ffn-blue-900: #0C1A45;  /* ink navy */
  --ffn-blue-950: #081230;  /* deepest — dark surfaces */

  /* ---- Neutrals (warm paper → cool ink) ---- */
  --ffn-paper:    #F7F6F1;
  --ffn-paper-2:  #EFEDE5;
  --ffn-white:    #FFFFFF;
  --ffn-gray-50:  #F6F7F9;
  --ffn-gray-100: #ECEEF2;
  --ffn-gray-200: #DCE0E7;
  --ffn-gray-300: #C2C8D4;
  --ffn-gray-400: #969EAE;
  --ffn-gray-500: #6B7385;
  --ffn-gray-600: #4C5365;
  --ffn-gray-700: #363C4B;
  --ffn-gray-800: #242935;
  --ffn-gray-900: #151922;

  /* ---- Accents (used sparingly) ---- */
  --ffn-red:      #D7261E;
  --ffn-red-deep: #AF1B15;
  --ffn-gold:     #C2A14E;
  --ffn-gold-soft:#E7D6A6;

  /* ---- Functional ---- */
  --ffn-success:  #1F8A4C;
  --ffn-danger:   #C0271F;

  /* ---- Semantic aliases ---- */
  --color-brand:          var(--ffn-blue-600);
  --color-brand-hover:    var(--ffn-blue-700);
  --color-brand-active:   var(--ffn-blue-800);
  --color-brand-contrast: var(--ffn-white);
  --color-accent:         var(--ffn-red);

  --text-strong:  var(--ffn-blue-900);
  --text-body:    var(--ffn-gray-800);
  --text-muted:   var(--ffn-gray-500);
  --text-faint:   var(--ffn-gray-400);
  --text-on-dark: #E9EDF6;
  --text-on-dark-muted: #97A3C4;
  --text-link:    var(--ffn-blue-600);

  --surface-page:    var(--ffn-paper);
  --surface-card:    var(--ffn-white);
  --surface-sunken:  var(--ffn-gray-50);
  --surface-paper:   var(--ffn-paper);
  --surface-ink:     var(--ffn-blue-950);
  --surface-navy:    var(--ffn-blue-900);
  --surface-brand:   var(--ffn-blue-600);

  --border-subtle:  var(--ffn-gray-200);
  --border-default: var(--ffn-gray-300);
  --border-strong:  var(--ffn-blue-900);
  --border-on-dark: rgba(255, 255, 255, 0.14);

  --focus-ring: var(--ffn-blue-500);

  /* ---- Type ---- */
  --font-display: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --font-body:    "Hanken Grotesk", system-ui, -apple-system, sans-serif;
  --font-mono:    "Spline Sans Mono", ui-monospace, "SFMono-Regular", monospace;

  --display-hero:  clamp(3.25rem, 8vw + 1rem, 6.75rem);
  --display-1:     clamp(2.5rem, 5vw + 1rem, 4rem);
  --display-2:     clamp(2rem, 3.5vw + 1rem, 3rem);
  --tracking-eyebrow: 0.16em;

  /* ---- Spacing & layout ---- */
  --container-max:   1200px;
  --container-wide:  1360px;
  --container-text:  720px;
  --gutter:          clamp(1.25rem, 4vw, 4rem);
  --section-y:       clamp(4rem, 9vw, 8rem);
  --section-y-tight: clamp(2.5rem, 5vw, 4rem);

  /* ---- Effects ---- */
  --radius-xs:   3px;
  --radius-sm:   5px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   18px;
  --radius-pill: 999px;

  --shadow-xs:  0 1px 2px rgba(8, 18, 48, 0.06);
  --shadow-sm:  0 1px 3px rgba(8, 18, 48, 0.08), 0 1px 2px rgba(8, 18, 48, 0.04);
  --shadow-md:  0 4px 12px rgba(8, 18, 48, 0.08), 0 2px 4px rgba(8, 18, 48, 0.05);
  --shadow-lg:  0 12px 32px rgba(8, 18, 48, 0.12), 0 4px 8px rgba(8, 18, 48, 0.06);
  --shadow-xl:  0 24px 60px rgba(8, 18, 48, 0.18);

  --ring: 0 0 0 3px rgba(47, 79, 196, 0.35);

  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
  --ease-inout: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast:   140ms;
  --dur-base:   220ms;
  --dur-slow:   420ms;
}

/* ============================================================
   BASE
   ============================================================ */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;   /* clear the sticky header on anchor jumps */
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--surface-paper);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-body);
  overflow-wrap: break-word;     /* never let long words (emails) overflow */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { text-wrap: balance; }

a { color: inherit; -webkit-tap-highlight-color: transparent; }

img, svg { display: block; max-width: 100%; }

button { font: inherit; }

/* The [hidden] attribute must always win, even over display:flex/grid rules. */
[hidden] { display: none !important; }

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

::selection { background: var(--ffn-blue-200); color: var(--ffn-blue-900); }

.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 100;
  background: var(--ffn-blue-900);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: top var(--dur-base) var(--ease-out);
}
.skip-link:focus { top: 16px; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ---- Layout helpers ---- */
.container       { max-width: var(--container-max);  margin-inline: auto; }
.container-wide  { max-width: var(--container-wide);  margin-inline: auto; }
.container-text  { max-width: var(--container-text);  margin-inline: auto; }

/* ============================================================
   LOGO — pixel Croix de Lorraine emblem + FFNum wordmark
   ============================================================ */
.logo {
  --logo-size: 40px;
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: calc(var(--logo-size) * 0.32);
  text-decoration: none;
  color: var(--ffn-blue-900);   /* tone: ink (default) */
}
.logo--white { color: #fff; }

.logo__emblem { height: var(--logo-size); width: auto; flex: 0 0 auto; }
.logo__emblem rect { fill: currentColor; }
.logo__emblem .spark { fill: var(--ffn-red); }

.logo__lockup {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
}
.logo__word {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: calc(var(--logo-size) * 1.15);
  letter-spacing: -0.035em;
  line-height: 0.9;
  color: currentColor;
}
.logo__name {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: max(8.5px, calc(var(--logo-size) * 0.2));
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ffn-gray-500);
  margin-top: calc(var(--logo-size) * 0.13);
}
.logo--white .logo__name { color: rgba(233, 237, 246, 0.72); }

/* ============================================================
   EYEBROW — uppercase mono kicker with leading rule
   ============================================================ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--ffn-blue-600);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: currentColor;
  flex: 0 0 auto;
  opacity: 0.9;
}
.eyebrow--no-rule::before { display: none; }
.eyebrow--brand { color: var(--ffn-blue-600); }
.eyebrow--ink   { color: var(--ffn-blue-900); }
.eyebrow--muted { color: var(--text-muted); }
.eyebrow--red   { color: var(--ffn-red); }
.eyebrow--white { color: rgba(233, 237, 246, 0.85); }

/* ============================================================
   BUTTON
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 22px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn--sm { height: 38px; padding: 0 14px; font-size: 0.8125rem; gap: 8px; }
.btn--lg { height: 58px; padding: 0 30px; font-size: 1.0625rem; gap: 12px; }
.btn--block { display: flex; width: 100%; }

.btn--primary {
  background: var(--color-brand);
  color: var(--color-brand-contrast);
  border-color: var(--color-brand);
}
.btn--primary:hover { background: var(--color-brand-hover); border-color: var(--color-brand-hover); }

.btn--secondary {
  background: transparent;
  color: var(--ffn-blue-900);
  border: 1.5px solid var(--ffn-blue-900);
}
.btn--secondary:hover { background: var(--ffn-blue-900); color: #fff; }

.btn--ghost {
  background: transparent;
  color: var(--ffn-blue-700);
  border-color: transparent;
}
.btn--ghost:hover { background: var(--ffn-blue-50); }

.btn--accent {
  background: var(--ffn-red);
  color: #fff;
  border-color: var(--ffn-red);
}
.btn--accent:hover { background: var(--ffn-red-deep); border-color: var(--ffn-red-deep); }

.btn--on-dark {
  background: var(--ffn-white);
  color: var(--ffn-blue-900);
  border-color: var(--ffn-white);
}

.btn[disabled], .btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ============================================================
   BADGE
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  padding: 0 9px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  white-space: nowrap;
}
.badge--brand-soft  { background: var(--ffn-blue-50); color: var(--ffn-blue-700); }
.badge--accent-soft { background: #FBE3E1; color: var(--ffn-red-deep); }
.badge--gold-soft   { background: #F6EFD9; color: #8A6F22; }

/* ============================================================
   AVATAR
   ============================================================ */
.avatar {
  --avatar-size: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--avatar-size);
  height: var(--avatar-size);
  flex: 0 0 auto;
  border-radius: 50%;
  overflow: hidden;
  background: var(--ffn-blue-100);
  color: var(--ffn-blue-700);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: calc(var(--avatar-size) * 0.36);
  letter-spacing: 0.01em;
  border: 1px solid rgba(8, 18, 48, 0.06);
}

/* ============================================================
   CARD
   ============================================================ */
.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 28px;
  background: var(--surface-card);
  color: var(--text-body);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}
.card--xl { border-radius: var(--radius-xl); padding: 34px; }

/* ============================================================
   FORM CONTROLS
   ============================================================ */
.field { display: flex; flex-direction: column; gap: 7px; width: 100%; }
.field__label {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-strong);
  letter-spacing: 0.01em;
}
.field__req { color: var(--ffn-red); margin-left: 4px; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-hint { font-size: 0.8125rem; line-height: 1.5; color: var(--text-muted); margin: -4px 0 0; }
.form-hint a { color: var(--text-link); }

/* Legal pages reuse the manifeste reading column */
.manifeste__body ul { margin: 0 0 20px; padding-left: 1.25em; }
.manifeste__body li { font-size: 1.0625rem; line-height: 1.72; margin-bottom: 8px; }
.manifeste__body h3 {
  font-family: var(--font-display); font-weight: 800; font-size: 1.3rem;
  letter-spacing: -0.01em; color: var(--text-strong); margin: 34px 0 10px;
}
.manifeste__body a { color: var(--text-link); }
.legal-note {
  background: var(--ffn-blue-50); border: 1px solid var(--ffn-blue-100);
  border-radius: var(--radius-md); padding: 16px 18px;
  font-size: 0.9375rem; line-height: 1.6; color: var(--ffn-blue-800); margin: 0 0 30px;
}
.legal-meta {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted); margin-top: 40px;
}

.input, .textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-strong);
  background: var(--ffn-white);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.input { height: 48px; padding: 0 14px; }
.textarea { padding: 12px 14px; line-height: 1.5; resize: vertical; }
.input:focus, .textarea:focus {
  border-color: var(--ffn-blue-600);
  box-shadow: var(--ring);
}
.input::placeholder, .textarea::placeholder { color: var(--ffn-gray-400); }

/* Role chips (single-select) */
.chip-select { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 8px 13px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  background: transparent;
  color: var(--ffn-blue-700);
  border: 1.5px solid var(--border-default);
  transition: all var(--dur-fast) var(--ease-out);
}
.chip:hover { border-color: var(--ffn-blue-400); }
.chip[aria-pressed="true"] {
  background: var(--ffn-blue-600);
  color: #fff;
  border-color: var(--ffn-blue-600);
}

/* Checkbox */
.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.45;
  color: var(--text-body);
}
.checkbox input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.checkbox__box {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border-radius: var(--radius-xs);
  border: 1.5px solid var(--border-default);
  background: var(--ffn-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.checkbox__box svg { opacity: 0; }
.checkbox input:checked + .checkbox__box {
  background: var(--ffn-blue-600);
  border-color: var(--ffn-blue-600);
}
.checkbox input:checked + .checkbox__box svg { opacity: 1; }
.checkbox input:focus-visible + .checkbox__box { box-shadow: var(--ring); }

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(247, 246, 241, 0.86);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom-color: var(--border-subtle);
}
.site-header__bar {
  max-width: var(--container-wide);
  margin-inline: auto;
  padding: 0 var(--gutter);
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header__nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.site-header__link {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-strong);
  text-decoration: none;
  letter-spacing: 0.01em;
  opacity: 0.85;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.site-header__link:hover { opacity: 1; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-strong);
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px var(--gutter) 20px;
  background: rgba(247, 246, 241, 0.97);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a:not(.btn) {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-strong);
  text-decoration: none;
  padding: 12px 4px;
  border-bottom: 1px solid var(--border-subtle);
}
.mobile-nav .btn { margin-top: 12px; }

/* ============================================================
   HERO — direction "Manifeste"
   ============================================================ */
.hero {
  position: relative;
  background: var(--surface-paper);
  color: var(--text-body);
  overflow: hidden;
}
.hero__rule {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 6px;
  background: var(--surface-ink);
}
.hero__inner {
  position: relative;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding: clamp(3rem, 6vw, 5rem) var(--gutter) clamp(3.5rem, 7vw, 5.5rem);
}
.hero__content { max-width: 1000px; }
.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.25rem, 4.6vw, 3.85rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--text-strong);
  margin: 28px 0 0;
}
.hero__title .accent { color: var(--ffn-blue-600); }
.hero__lead {
  font-family: var(--font-body);
  font-size: clamp(1.0625rem, 1.5vw, 1.3125rem);
  line-height: 1.6;
  color: var(--text-body);
  margin: 30px 0 0;
  max-width: 60ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

/* ============================================================
   MANIFESTE — editorial reading column
   ============================================================ */
.manifeste {
  background: var(--surface-paper);
  padding: var(--section-y) var(--gutter);
}
.manifeste__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.manifeste__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--display-1);
  line-height: 1.04;
  letter-spacing: -0.025em;
  color: var(--text-strong);
  margin: 22px 0 0;
}
.manifeste__body { margin-top: 36px; font-family: var(--font-body); color: var(--text-body); }
.manifeste__lead {
  font-size: 1.25rem;
  line-height: 1.55;
  font-weight: 500;
  color: var(--text-strong);
  margin: 0 0 28px;
}
.manifeste__body p {
  font-size: 1.0625rem;
  line-height: 1.72;
  margin: 0 0 20px;
}
.manifeste__body strong { color: var(--text-strong); font-weight: 700; }
.manifeste__sub { margin: 40px 0 18px; }

/* Doctrine quote block */
.doctrine {
  margin: 8px 0 24px;
  background: var(--surface-navy);
  border-radius: var(--radius-xl);
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--border-on-dark);
}
.doctrine__quote {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.125rem, 1.8vw, 1.45rem);
  line-height: 1.42;
  color: #fff;
  letter-spacing: -0.01em;
}
.doctrine__strike {
  color: var(--text-on-dark-muted);
  text-decoration: line-through;
  text-decoration-color: var(--ffn-red);
  text-decoration-thickness: 2px;
}
.doctrine__swap { color: var(--ffn-blue-300); font-weight: 700; }
.doctrine__cap {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-on-dark-muted);
  margin-top: 16px;
}
.doctrine__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 26px 0;
}
.doctrine__divider span:first-child,
.doctrine__divider span:last-child { height: 1px; flex: 1; background: var(--border-on-dark); }
.doctrine__divider em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ffn-blue-300);
}

/* Engagements list */
.engagements { display: flex; flex-direction: column; gap: 14px; margin: 4px 0 8px; }
.engagement {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: baseline;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}
.engagement__n {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--ffn-blue-400);
  letter-spacing: 0.05em;
}
.engagement p { margin: 0; font-size: 1.0625rem; line-height: 1.6; }

.manifeste__sign {
  border-top: 3px solid var(--ffn-red);
  padding-top: 18px;
  margin-top: 6px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.manifeste__sign-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--text-strong);
  letter-spacing: -0.01em;
}
.manifeste__sign-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================================
   PILIERS — master / detail consultant
   ============================================================ */
.piliers {
  background: var(--surface-card);
  padding: var(--section-y) var(--gutter);
}
.piliers__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--display-1);
  line-height: 1.04;
  letter-spacing: -0.025em;
  color: var(--text-strong);
  margin: 20px 0 0;
  max-width: 18ch;
}
.piliers__intro {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 14px 0 0;
  max-width: 52ch;
}
.piliers__grid {
  display: grid;
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
  margin-top: 44px;
}
.piliers__tabs { display: flex; flex-direction: column; gap: 6px; }

.pil-tab {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-strong);
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.pil-tab:not([aria-selected="true"]):hover { background: var(--ffn-blue-50); }
.pil-tab[aria-selected="true"] { background: var(--surface-navy); border-color: transparent; }
.pil-tab__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--ffn-blue-300);
}
.pil-tab__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  color: var(--text-strong);
}
.pil-tab[aria-selected="true"] .pil-tab__title { color: #fff; }
.pil-tab__chev {
  display: inline-flex;
  color: var(--text-faint);
  transition: transform var(--dur-fast) var(--ease-out);
}
.pil-tab[aria-selected="true"] .pil-tab__chev { color: var(--ffn-blue-300); transform: translateX(2px); }

.pil-panel {
  background: var(--surface-paper);
  border: 1px solid var(--ffn-paper-2);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 38px);
}
.pil-panel[hidden] { display: none; }
.pil-panel__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.pil-panel__icon {
  display: inline-flex;
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--ffn-blue-600);
  color: #fff;
  align-items: center;
  justify-content: center;
}
.pil-panel__count {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ffn-blue-300);
}
.pil-panel__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: -0.02em;
  color: var(--text-strong);
  margin: 22px 0 0;
}
.pil-panel__lead {
  font-family: var(--font-body);
  font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
  line-height: 1.5;
  font-weight: 500;
  color: var(--text-strong);
  margin: 12px 0 0;
  max-width: 46ch;
}
.pil-panel__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 3vw, 32px);
  margin-top: 30px;
}
.mini-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ffn-blue-600);
  margin: 0 0 7px;
}
.mini-label--red { color: var(--ffn-red); }
.pil-panel__cols p:last-child {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.62;
  color: var(--text-body);
  margin: 0;
}
.pil-panel__leviers {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--ffn-paper-2);
}
.levier-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.levier {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 13px;
  border-radius: var(--radius-pill);
  background: var(--ffn-blue-50);
  color: var(--ffn-blue-700);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
}

/* ============================================================
   SIGNATAIRES — social-proof band
   ============================================================ */
.signataires {
  background: var(--ffn-blue-50);
  padding: var(--section-y-tight) var(--gutter);
}
.signataires__row {
  display: flex;
  gap: 40px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.signataires__lead { max-width: 440px; }
.signataires__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-strong);
  margin: 16px 0 14px;
}
.signataires__text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 22px;
}
.signataires__wall { flex: 1 1 380px; min-width: 300px; }
.signataires__avatars {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
.signataires__more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  background: var(--ffn-blue-600);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
}
.signataires__founders { display: flex; flex-wrap: wrap; gap: 8px; }

/* ============================================================
   JOIN FORM
   ============================================================ */
.join {
  background: var(--surface-paper);
  padding: var(--section-y) var(--gutter);
  scroll-margin-top: 80px;
}
.join__grid {
  max-width: var(--container-max);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.join__left { position: sticky; top: 100px; }
.join__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--display-1);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text-strong);
  margin: 20px 0 0;
}
.join__text {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text-body);
  margin: 24px 0 28px;
  max-width: 42ch;
}
.join__meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-muted);
}
.join__meta strong { color: var(--text-strong); }

.join__form { display: flex; flex-direction: column; gap: 18px; }
.join__name-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.join__role-label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 9px;
  letter-spacing: 0.01em;
}

/* Success state */
.join__success { text-align: center; padding: 26px 8px; }
.join__success-icon {
  display: inline-flex;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--ffn-blue-600);
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: #fff;
}
.join__success-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  color: var(--text-strong);
  margin: 0 0 10px;
}
.join__success-text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 22px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--surface-ink);
  color: var(--text-on-dark);
  padding: var(--section-y-tight) var(--gutter) 0;
}
.site-footer__grid {
  max-width: var(--container-wide);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
}
.site-footer__brand { max-width: 320px; }
.site-footer__tagline {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-on-dark-muted);
  margin: 22px 0 0;
}
.site-footer__col ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.site-footer__col a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-on-dark);
  text-decoration: none;
  opacity: 0.78;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.site-footer__col a:hover { opacity: 1; }
.site-footer__bottom {
  max-width: var(--container-wide);
  margin: 40px auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 30px 0 26px;
  border-top: 1px solid var(--border-on-dark);
}
.site-footer__bottom span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-on-dark-muted);
}
.tricolore {
  height: 4px;
  display: flex;
}
.tricolore span { flex: 1; }
.tricolore span:nth-child(1) { background: var(--ffn-blue-500); }
.tricolore span:nth-child(2) { background: #fff; }
.tricolore span:nth-child(3) { background: var(--ffn-red); }

/* ============================================================
   ENTRANCE ANIMATION (restrained, one page-load reveal)
   ============================================================ */
@keyframes ffnFade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}
/* Scoped to no-preference so content is never stuck invisible
   (reduced-motion users + any no-animation fallback see it immediately). */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    animation: ffnFade var(--dur-slow) var(--ease-out) forwards;
  }
  .hero .reveal:nth-child(1) { animation-delay: 0.02s; }
  .hero .reveal:nth-child(2) { animation-delay: 0.10s; }
  .hero .reveal:nth-child(3) { animation-delay: 0.18s; }
  .hero .reveal:nth-child(4) { animation-delay: 0.26s; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 920px) {
  .join__grid { grid-template-columns: 1fr; }
  .join__left { position: static; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 860px) {
  .piliers__grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .site-header__nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .join__name-grid { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .pil-panel__cols { grid-template-columns: 1fr; }
  .card--xl { padding: 22px; }
  .signataires__row { gap: 28px; }
}
@media (max-width: 420px) {
  .site-header .logo { --logo-size: 34px; }   /* keep header uncrowded on tiny phones */
  .pil-tab { padding: 14px 14px; }
  .hero__actions .btn { width: 100%; }         /* full-width CTAs are easier to tap */
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; }
}