/* Infor-Mat — feuille de style commune
   Palette alignée sur le logo réel (navy #001E42 / bleu #0052C8) + accent cuivre pour les CTA. */

:root{
  --bg: #F5F7FB;
  --surface: #FFFFFF;
  --surface-2: #ECF0F7;
  --ink: #0B1220;
  --ink-soft: #4C5670;
  --ink-faint: #8791A6;
  --accent: #0052C8;
  --accent-deep: #001E42;
  --accent-soft: #E3ECFC;
  --warm: #B8631E;
  --warm-soft: #F7E3CF;
  --line: #DCE2ED;
  --shadow: 0 1px 2px rgba(9,17,36,0.05), 0 10px 28px -14px rgba(9,17,36,0.18);
  /* Bande sombre "signature" (offre, souveraineté, CTA) — volontairement fixe,
     ne s'inverse pas avec le thème, pour ne jamais finir bleu clair + texte blanc. */
  --band-bg: #001E42;
  --band-ink: #F5F8FF;
  --band-ink-soft: rgba(245,248,255,0.76);
  --band-accent: #E4A466;
  color-scheme: light;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg: #0A0F1A;
    --surface: #111827;
    --surface-2: #161F33;
    --ink: #EEF1F7;
    --ink-soft: #AEB8CE;
    --ink-faint: #75809A;
    --accent: #6FA3FF;
    --accent-deep: #9FC3FF;
    --accent-soft: #1B2740;
    --warm: #E4A466;
    --warm-soft: #33230F;
    --line: #232D45;
    --shadow: 0 1px 2px rgba(0,0,0,0.35), 0 14px 32px -16px rgba(0,0,0,0.6);
    color-scheme: dark;
  }
}

:root[data-theme="dark"]{
  --bg: #0A0F1A;
  --surface: #111827;
  --surface-2: #161F33;
  --ink: #EEF1F7;
  --ink-soft: #AEB8CE;
  --ink-faint: #75809A;
  --accent: #6FA3FF;
  --accent-deep: #9FC3FF;
  --accent-soft: #1B2740;
  --warm: #E4A466;
  --warm-soft: #33230F;
  --line: #232D45;
  --shadow: 0 1px 2px rgba(0,0,0,0.35), 0 14px 32px -16px rgba(0,0,0,0.6);
  color-scheme: dark;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3{
  font-family: "Archivo", "Segoe UI", system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.12;
  text-wrap: balance;
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}

p{ margin: 0; }
a{ color: inherit; }
ul{ margin:0; }

.eyebrow{
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
}

.hl{ color: var(--accent-deep); }
.hl2{ color: var(--accent); }

/* Layout shell */
.wrap{
  max-width: 1120px;
  margin: 0 auto;
  padding-inline: 24px;
}

section{ padding-block: clamp(48px, 8vw, 96px); }

.section-head{
  max-width: 640px;
  margin-bottom: 40px;
  display: grid;
  gap: 12px;
}
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.15rem); }
.section-head h3{ font-size: clamp(1.25rem, 2.4vw, 1.5rem); }
.section-head p{ color: var(--ink-soft); font-size: 1.02rem; }

/* Header / nav */
.site-header{
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 12px;
}

.brand{ display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-icon{ width: 34px; height: 34px; color: var(--accent-deep); flex: none; }
.brand-icon svg{ width: 100%; height: 100%; display: block; }
.brand-text{ display: flex; flex-direction: column; gap: 1px; }
.brand-mark{
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand-tag{
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

nav.main-nav{ display: flex; align-items: center; gap: 28px; }
nav.main-nav a{ text-decoration: none; font-size: 0.94rem; color: var(--ink-soft); font-weight: 500; }
nav.main-nav a:hover{ color: var(--ink); }

.nav-toggle{
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  cursor: pointer;
}
.nav-toggle svg{ width: 18px; height: 18px; stroke: var(--ink); }

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  font-family: "IBM Plex Sans", sans-serif;
}
.btn-primary{ background: var(--warm); color: #fff; }
.btn-primary:hover{ background: color-mix(in srgb, var(--warm) 84%, black); }
.btn-ghost{ background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover{ border-color: var(--ink-faint); }
.btn-block{ width: 100%; justify-content: center; }

/* Hero */
.hero{
  position: relative;
  overflow: clip;
  padding-block: clamp(56px, 10vw, 104px) clamp(40px, 6vw, 72px);
}
.hero-watermark{
  position: absolute;
  top: -8%; right: -10%;
  width: min(640px, 60vw);
  height: auto;
  color: var(--line);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}
.hero-watermark svg{ width: 100%; height: auto; display: block; }
.hero-inner{ position: relative; z-index: 1; display: grid; gap: 22px; max-width: 700px; }
.hero h1{ font-size: clamp(2.1rem, 5vw, 3.35rem); }
.hero .lede{ font-size: 1.15rem; color: var(--ink-soft); max-width: 600px; }
.hero-cta{ display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }

.trust-row{
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 56px;
}
.trust-item{ background: var(--surface); padding: 22px 20px; display: grid; gap: 6px; }
.trust-item svg{ width: 20px; height: 20px; stroke: var(--accent); margin-bottom: 6px; }
.trust-item strong{ font-family: "Archivo", sans-serif; font-size: 1.02rem; }
.trust-item span{ font-size: 0.88rem; color: var(--ink-soft); }

/* Offer — one-shot intro card */
.offer-oneshot{
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 28px;
  display: grid;
  gap: 14px;
  margin-bottom: 16px;
}
.offer-oneshot .tag{ font-size: 0.8rem; font-family: "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: 0.06em; color: var(--warm); }
.offer-oneshot h3{ font-size: 1.2rem; }
.offer-oneshot p{ color: var(--ink-soft); font-size: 0.95rem; max-width: 640px; }
.offer-oneshot .price{ font-family: "IBM Plex Mono", monospace; font-size: 0.85rem; color: var(--ink); }

.offer-divider{
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 44px 0 28px;
}
.offer-divider .eyebrow{ white-space: nowrap; }
.offer-divider::after{ content: ""; flex: 1; height: 1px; background: var(--line); }

/* Offer — flagship spec table */
.offer-flagship{
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.offer-flagship-head{
  padding: 26px 28px;
  background: var(--band-bg);
  color: var(--band-ink);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: baseline;
  justify-content: space-between;
}
.offer-flagship-head h3{ color: var(--band-ink); font-size: 1.3rem; }
.offer-flagship-head p{ color: var(--band-ink-soft); font-size: 0.92rem; max-width: 460px; }
.offer-flagship-head .eyebrow{ color: var(--band-accent); }

.tier-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.tier{
  padding: 26px 24px;
  display: grid;
  gap: 14px;
  align-content: start;
  border-left: 1px solid var(--line);
}
.tier:first-child{ border-left: none; }
.tier.is-highlight{ background: var(--accent-soft); }
.tier-name{ font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.tier-price{ font-family: "Archivo", sans-serif; font-size: 1.7rem; font-weight: 700; }
.tier-price span{ font-family: "IBM Plex Sans", sans-serif; font-size: 0.85rem; font-weight: 500; color: var(--ink-faint); }
.tier-scope{ font-size: 0.86rem; color: var(--ink-faint); }
.tier ul{ list-style: none; padding: 0; display: grid; gap: 9px; font-size: 0.9rem; }
.tier li{ display: flex; gap: 8px; align-items: baseline; color: var(--ink-soft); }
.tier li::before{ content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex: none; transform: translateY(-2px); }
.tier-foot{ font-size: 0.78rem; color: var(--ink-faint); padding: 14px 24px 22px; border-top: 1px dashed var(--line); grid-column: 1 / -1; }

/* Secondary offers / add-ons */
.offer-secondary{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}
.offer-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.offer-card .tag{ font-size: 0.78rem; font-family: "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: 0.06em; color: var(--warm); }
.offer-card h4{ font-family: "Archivo", sans-serif; font-size: 1.05rem; font-weight: 700; }
.offer-card p{ color: var(--ink-soft); font-size: 0.92rem; }
.offer-card ul{ list-style: none; padding: 0; display: grid; gap: 8px; font-size: 0.88rem; color: var(--ink-soft); margin-top: 2px; }
.offer-card li{ display: flex; gap: 8px; align-items: baseline; }
.offer-card li::before{ content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex: none; transform: translateY(-2px); }
.offer-card .price{ font-family: "IBM Plex Mono", monospace; font-size: 0.85rem; color: var(--ink); margin-top: auto; padding-top: 6px; }

/* Sovereignty band */
.sovereignty-band{
  background: var(--band-bg);
  color: var(--band-ink);
  border-radius: 18px;
  padding: clamp(32px, 5vw, 52px);
  display: grid;
  gap: 28px;
}
.sovereignty-band .eyebrow{ color: var(--band-accent); }
.sovereignty-band h2{ color: var(--band-ink); font-size: clamp(1.4rem, 2.8vw, 1.9rem); max-width: 600px; }
.sovereignty-band > p{ color: var(--band-ink-soft); max-width: 620px; font-size: 1rem; }
.sovereignty-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sovereignty-item{ display: grid; gap: 8px; }
.sovereignty-item svg{ width: 22px; height: 22px; stroke: var(--band-accent); }
.sovereignty-item strong{ font-family: "Archivo", sans-serif; font-size: 1rem; color: var(--band-ink); }
.sovereignty-item span{ font-size: 0.88rem; color: var(--band-ink-soft); }

/* Secteurs / vertical band */
.sectors-band{
  background: var(--surface-2);
  border-radius: 18px;
  padding: clamp(28px, 5vw, 44px);
  display: grid;
  gap: 22px;
}
.sector-chips{ display: flex; flex-wrap: wrap; gap: 10px; }
.sector-chip{
  font-size: 0.86rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

/* Cas d'usage */
.usecase-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.usecase-card{ padding: 24px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface); display: grid; gap: 10px; align-content: start; }
.usecase-card .cat{ font-family: "IBM Plex Mono", monospace; font-size: 0.7rem; letter-spacing: 0.07em; text-transform: uppercase; color: var(--warm); }
.usecase-card h3{ font-size: 1.05rem; }
.usecase-card p{ color: var(--ink-soft); font-size: 0.92rem; }

/* Différenciateurs */
.diff-grid{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.diff-card{ display: grid; gap: 10px; }
.diff-card .num{ font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; color: var(--accent); }
.diff-card h3{ font-size: 1rem; }
.diff-card p{ font-size: 0.88rem; color: var(--ink-soft); }

/* Bio */
.bio{ display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: start; }
.bio-avatar{
  width: 148px;
  aspect-ratio: 3 / 4;
  border-radius: 18px;
  background: linear-gradient(150deg, var(--accent-soft), var(--warm-soft));
  display: grid; place-items: center;
  border: 1px solid var(--line);
  overflow: hidden;
}
.bio-avatar img{ width: 100%; height: 100%; object-fit: cover; object-position: center 80%; }
.bio-avatar span{ font-family: "Archivo", sans-serif; font-size: 2.2rem; font-weight: 700; color: var(--accent-deep); }
.bio-text{ display: grid; gap: 16px; }
.bio-text p{ color: var(--ink-soft); font-size: 1rem; }
.bio-text p strong{ color: var(--ink); }
.bio-meta{ display: flex; gap: 22px; flex-wrap: wrap; margin-top: 6px; padding-top: 18px; border-top: 1px solid var(--line); }
.bio-meta div{ display: grid; gap: 2px; }
.bio-meta strong{ font-family: "IBM Plex Mono", monospace; font-size: 1.05rem; color: var(--accent); }
.bio-meta span{ font-size: 0.82rem; color: var(--ink-faint); }

/* CTA band */
.cta-band{
  background: var(--band-bg);
  color: var(--band-ink);
  border-radius: 18px;
  padding: clamp(36px, 6vw, 64px);
  display: grid;
  gap: 18px;
  text-align: center;
  justify-items: center;
}
.cta-band .eyebrow{ color: var(--band-accent); }
.cta-band h2{ color: var(--band-ink); font-size: clamp(1.5rem, 3.2vw, 2.1rem); max-width: 580px; }
.cta-band p{ color: var(--band-ink-soft); max-width: 520px; }

/* Footer */
footer{ border-top: 1px solid var(--line); padding-block: 36px; }
footer .wrap{ display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-links{ display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a{ text-decoration: none; font-size: 0.88rem; color: var(--ink-soft); }
.footer-links a:hover{ color: var(--ink); }
.footer-copy{ font-size: 0.82rem; color: var(--ink-faint); }

/* Contact page */
.contact-grid{ display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; }
.card{ background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 28px; box-shadow: var(--shadow); }
.field{ display: grid; gap: 6px; margin-bottom: 18px; }
.field label{ font-size: 0.86rem; font-weight: 500; }
.field input, .field select, .field textarea{
  font: inherit; padding: 11px 12px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink); width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline: 2px solid var(--accent); outline-offset: 1px; }
.field textarea{ resize: vertical; min-height: 110px; }
.form-note{ font-size: 0.8rem; color: var(--ink-faint); margin-top: 14px; }
.form-status{ font-size: 0.88rem; margin-top: 14px; display: none; }
.form-status.visible{ display: block; }

.contact-alt{ display: grid; gap: 18px; }
.alt-item{ display: grid; gap: 4px; }
.alt-item .k{ font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); font-family: "IBM Plex Mono", monospace; }
.alt-item .v{ font-size: 1rem; }
.alt-item a{ color: var(--accent); text-decoration: none; }
.alt-item a:hover{ text-decoration: underline; }

/* Legal page */
.legal-doc h2{ font-size: 1.2rem; margin-top: 36px; margin-bottom: 12px; font-family: "Archivo", sans-serif; }
.legal-doc h2:first-child{ margin-top: 0; }
.legal-doc p, .legal-doc li{ color: var(--ink-soft); font-size: 0.96rem; }
.legal-doc ul{ padding-left: 20px; display: grid; gap: 6px; }
.placeholder{
  background: var(--warm-soft); color: var(--warm);
  padding: 1px 6px; border-radius: 4px;
  font-family: "IBM Plex Mono", monospace; font-size: 0.85em;
}

.page-hero{ padding-block: clamp(48px, 8vw, 80px) 8px; display: grid; gap: 14px; max-width: 660px; }
.page-hero .lede{ color: var(--ink-soft); font-size: 1.05rem; }

/* Responsive */
@media (max-width: 900px){
  .tier-grid{ grid-template-columns: 1fr; }
  .tier{ border-left: none; border-top: 1px solid var(--line); }
  .tier:first-child{ border-top: none; }
  .diff-grid{ grid-template-columns: repeat(2, 1fr); }
  .sovereignty-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 860px){
  .offer-grid, .usecase-grid, .trust-row, .offer-secondary{ grid-template-columns: 1fr; }
  .bio{ grid-template-columns: 1fr; }
  .bio-avatar{ width: 108px; }
  .contact-grid{ grid-template-columns: 1fr; }
  .diff-grid{ grid-template-columns: 1fr; }
  .hero-watermark{ width: 78vw; opacity: 0.4; }
}

@media (max-width: 720px){
  nav.main-nav{
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start;
    padding: 16px 24px 22px; gap: 16px; display: none;
  }
  nav.main-nav.open{ display: flex; }
  .nav-toggle{ display: inline-flex; }
  .header-cta{ display: none; }
}