/* =============================================================
   Ternaire, Atelier d'idées | main.css
   Palette : assets/ternaire-palette.css (copiée ci-dessous).
   ============================================================= */

/* --- Polices auto-hébergées (copiées depuis node_modules à la construction) --- */
@font-face {
  font-family: "Montserrat Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/assets/fonts/montserrat-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Montserrat Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/assets/fonts/montserrat-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/assets/fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/assets/fonts/inter-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --- Palette Ternaire, Atelier d'idées (assets/ternaire-palette.css) --- */
:root {
  --ternaire-creme: #FCFBF7; /* Fond principal */
  --ternaire-vert-profond: #12352C; /* Boutons et pied de page */
  --ternaire-sauge: #6B8473; /* Accents et éléments graphiques */
  --ternaire-sauge-clair: #AEB6A1; /* Papier et illustrations */
  --ternaire-orange: #F57721; /* Accents et soulignements */
  --ternaire-encre: #041114; /* Titres et texte fort */
  --ternaire-gris-bleute: #505E64; /* Texte courant */
  --ternaire-brume: #E7EDE5; /* Bandeaux et fonds secondaires */

  /* Jetons sémantiques */
  --bg: var(--ternaire-creme);
  --bg-alt: var(--ternaire-brume);
  --ink: var(--ternaire-encre);
  --text: var(--ternaire-gris-bleute);
  --green: var(--ternaire-vert-profond);
  --green-hover: #1B4A3D;
  --sage: var(--ternaire-sauge);
  --sage-light: var(--ternaire-sauge-clair);
  --orange: var(--ternaire-orange);
  --orange-text: #B84E0A; /* orange foncé pour les petits textes (contraste) */
  --orange-soft: #FDEBDD; /* fond des pastilles */
  --wordmark: #121C25; /* couleur du mot-symbole dans le logo officiel */
  --line: #E4E7E0;
  --line-strong: #C7CFC6;
  --card: #FFFFFF;
  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --font-heading: "Montserrat Variable", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter Variable", "Segoe UI", system-ui, sans-serif;
  --container: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --brand-mark: 44px; /* largeur des trois barres du logo (en-tête, menu, pied de page) */
  --brand-gap: 0.7rem;
}

/* --- Base --- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  color: var(--ink);
  text-wrap: balance;
}
h1 { font-size: clamp(2.5rem, 1.6rem + 3.4vw, 4.2rem); }
h2 { font-size: clamp(1.9rem, 1.3rem + 2vw, 2.8rem); }
h3 { font-size: 1.35rem; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
a { color: var(--green); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { color: var(--ink); }
strong { color: var(--ink); font-weight: 600; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--orange-soft); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 100;
  background: var(--green); color: #fff; padding: 0.6rem 1rem; border-radius: 8px;
}
.skip-link:focus { top: 1rem; }

.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.container-narrow { --container: 820px; }
.mt { margin-top: 1.5rem; }
.center { text-align: center; }
.center .lead { margin-inline: auto; }

/* --- Sections et typographie utilitaire --- */
.section { padding-block: clamp(3rem, 6vw, 5rem); }
.section-tight { padding-block: clamp(2rem, 4vw, 3.5rem); }
.section-head { margin-bottom: clamp(1.5rem, 4vw, 2.5rem); }
.section-head h2 { margin-bottom: 0.2em; }
.eyebrow {
  font-family: var(--font-heading); font-weight: 600; font-size: 0.74rem;
  letter-spacing: 0.28em; text-transform: uppercase; color: var(--text); margin: 0 0 1rem;
}
.lead { font-size: clamp(1.1rem, 1rem + 0.4vw, 1.3rem); line-height: 1.55; color: var(--text); max-width: 44ch; }
.rule { width: 52px; height: 4px; border-radius: 2px; background: var(--orange); margin: 1.5rem 0 1.75rem; }
.accent { color: var(--orange); }
.meta { color: var(--text); font-size: 0.92rem; }
.note { display: flex; align-items: flex-start; gap: 0.8rem; margin: 1.6rem 0 0; font-size: 1.08rem; color: var(--text); }
.note::before { content: ""; flex: none; width: 10px; height: 10px; margin-top: 0.55em; border-radius: 50%; background: var(--orange); }
.note strong { color: var(--ink); font-weight: 600; }
.pill {
  display: inline-block; padding: 0.5rem 1.05rem; border-radius: 999px;
  background: var(--orange-soft); color: var(--orange-text); font-family: var(--font-heading);
  font-weight: 700; font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
}
.divider { border: 0; border-top: 1px solid var(--line-strong); margin: 1.6rem 0; }

/* --- Boutons et liens --- */
.actions { display: flex; flex-wrap: wrap; gap: 0.8rem 1rem; margin-top: 1.75rem; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 0.75rem;
  padding: 0.95rem 1.7rem; border-radius: 999px;
  font-family: var(--font-heading); font-weight: 500; font-size: 1.02rem; line-height: 1.2;
  text-decoration: none; border: 1.5px solid transparent; cursor: pointer;
  transition: transform 0.16s ease, background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-primary { background: var(--green); color: var(--bg); }
.btn-primary:hover { background: var(--green-hover); color: #fff; }
.btn-secondary { background: transparent; border-color: var(--line-strong); color: var(--ink); }
.btn-secondary:hover { border-color: var(--ink); color: var(--ink); }
.btn-light { background: var(--bg); color: var(--green); }
.btn-light:hover { background: #fff; color: var(--green); }
.link {
  font-family: var(--font-heading); font-weight: 500; color: var(--ink); text-decoration: none;
  border-bottom: 2px solid var(--sage); padding-bottom: 2px;
}
.link:hover { color: var(--ink); border-bottom-color: var(--orange); }
.link-arrow { display: inline-flex; align-items: center; gap: 0.5rem; }
.link-arrow svg { width: 18px; height: 18px; transition: transform 0.16s ease; }
.link-arrow:hover svg { transform: translateX(3px); }

/* --- En-tête --- */
.site-header { background: var(--bg); border-bottom: 1px solid var(--line); padding: 1rem 0; position: relative; z-index: 20; }
.site-header > .container { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: var(--brand-gap); text-decoration: none; color: var(--wordmark); }
.brand:hover { color: var(--wordmark); }
.brand-mark { width: var(--brand-mark); height: auto; flex: none; }
.brand-name {
  font-family: var(--font-heading); font-weight: 450; font-size: 1.85rem;
  letter-spacing: 0.097em; margin-right: -0.097em; line-height: 1; color: inherit;
}
.brand-light, .brand-light:hover { color: var(--bg); }

.site-nav ul { display: flex; align-items: center; gap: clamp(1.4rem, 3vw, 2.6rem); list-style: none; margin: 0; padding: 0; }
.site-nav a:not(.btn) {
  font-family: var(--font-heading); font-weight: 500; font-size: 1.02rem; color: var(--ink);
  text-decoration: none; padding: 0.5rem 0 0.4rem; border-bottom: 2px solid transparent;
}
.site-nav a:not(.btn):hover { border-bottom-color: var(--sage-light); color: var(--ink); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--orange); }
.site-nav .nav-cta { margin-left: 0.5rem; }
.site-nav-top, .nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-grid; place-items: center; width: 44px; height: 44px;
    border: 0; background: transparent; border-radius: 12px; cursor: pointer; color: var(--ink);
  }
  .nav-toggle-bars { position: relative; width: 22px; height: 2px; background: currentColor; border-radius: 2px; }
  .nav-toggle-bars::before, .nav-toggle-bars::after {
    content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: currentColor; border-radius: 2px;
  }
  .nav-toggle-bars::before { top: -7px; }
  .nav-toggle-bars::after { top: 7px; }
  .site-nav {
    position: fixed; inset: 0; z-index: 50; overflow: auto;
    background: var(--green); color: var(--bg);
    padding: 1rem var(--gutter) 2rem;
    transform: translateX(100%); visibility: hidden;
    transition: transform 0.28s ease, visibility 0s linear 0.28s;
  }
  .nav-open .site-nav { transform: none; visibility: visible; transition: transform 0.28s ease; }
  .nav-open { overflow: hidden; }
  .site-nav-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2.5rem; }
  .nav-close {
    width: 44px; height: 44px; border: 0; background: transparent; color: var(--bg);
    cursor: pointer; display: grid; place-items: center; border-radius: 12px;
  }
  .nav-close svg { width: 24px; height: 24px; }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 1.6rem; }
  .site-nav a:not(.btn) { color: var(--bg); font-size: 1.5rem; }
  .site-nav a:not(.btn):hover { border-bottom-color: var(--sage); color: var(--bg); }
  .site-nav .nav-cta { margin: 1rem 0 0; }
  .site-nav .nav-cta .btn { background: var(--bg); color: var(--green); font-size: 1.05rem; }
}
@media (prefers-reduced-motion: reduce) {
  .site-nav, .btn, .link-arrow svg { transition: none; }
}

/* --- Héros (accueil, à propos) --- */
.hero { padding-block: clamp(2.5rem, 5vw, 4.5rem) clamp(2.5rem, 6vw, 5rem); }
.hero > .container {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 5vw, 4rem); align-items: center;
}
.hero-copy h1 { margin-bottom: 0.45em; }
.hero-copy p:not(.eyebrow) { font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem); line-height: 1.6; }
.hero-copy .lead { margin-bottom: 0; }
.hero-copy p.strong { color: var(--ink); font-weight: 600; }
.hero-visual { display: flex; justify-content: center; }
.hero-art { width: 100%; max-width: 640px; height: auto; }
/* À propos : titre et récit dans la colonne de gauche, illustration à droite.
   Sur petit écran, l'illustration prend place entre le titre et le récit (maquettes mobiles). */
.hero-about > .container {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-areas: "intro visual" "story visual";
  row-gap: 0;
}
.hero-about .hero-intro { grid-area: intro; align-self: end; }
.hero-about .hero-story { grid-area: story; align-self: start; }
.hero-about .hero-visual { grid-area: visual; }
.hero-about .hero-art { max-width: 720px; }

/* --- Bandeau des trois piliers --- */
.band { background: var(--bg-alt); padding-block: clamp(2rem, 4vw, 3rem); }
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pillar {
  display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 1.25rem;
  padding: 0.75rem clamp(1rem, 3vw, 2.5rem); border-left: 1px solid rgba(18, 53, 44, 0.16);
}
.pillar:first-child { border-left: 0; padding-left: 0; }
.pillar-icon { width: 64px; height: 64px; color: var(--green); }
.pillar-icon svg { width: 100%; height: 100%; }
.pillar-title { font-size: 1.35rem; font-weight: 600; letter-spacing: -0.01em; margin: 0 0 0.2em; }
.pillar p { color: var(--text); font-size: 1rem; line-height: 1.45; margin: 0; }

/* --- Vitrine d'application (page Applications, page Lapin) --- */
.showcase {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem); align-items: center;
}
.showcase-visual { display: flex; justify-content: center; }
.showcase-art { width: 100%; max-width: 560px; height: auto; }
.showcase-copy .pill { margin-bottom: 1.2rem; }
.showcase-title { font-size: clamp(2.8rem, 2rem + 3vw, 4.4rem); margin-bottom: 0.1em; }
.showcase-tagline {
  font-family: var(--font-heading); font-weight: 600; letter-spacing: -0.01em; line-height: 1.15;
  font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.3rem); color: var(--sage); margin: 0 0 1rem;
}
.showcase-copy p { font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem); line-height: 1.55; }
.showcase-copy .actions { margin-top: 1.4rem; }

/* --- En-tête de page --- */
.page-head { padding-block: clamp(2rem, 5vw, 3.5rem) clamp(0.5rem, 2vw, 1.5rem); }
.page-head h1 { margin-bottom: 0.2em; }
.page-head .lead { margin-top: 0.4rem; }

/* --- Cartes, étapes, blocs --- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.75rem; }
.card-icon { width: 52px; height: 52px; color: var(--green); margin-bottom: 1.1rem; }
.card-icon svg { width: 100%; height: 100%; }
.card h3 { font-size: 1.2rem; margin-bottom: 0.4em; }
.card p { font-size: 1rem; }
.card .email {
  font-family: var(--font-heading); font-weight: 500; font-size: 1.08rem; color: var(--green);
  display: inline-block; margin-bottom: 0.7rem; word-break: break-all;
}
.card ul { padding-left: 1.1rem; margin: 0.6rem 0 0; font-size: 0.97rem; }
.card li { margin-bottom: 0.3em; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem; }
.step-num { font-family: var(--font-heading); font-weight: 700; font-size: 2.6rem; color: var(--orange); line-height: 1; margin: 0 0 0.5rem; }
.step h3 { font-size: 1.2rem; margin-bottom: 0.35em; }
.step p { font-size: 1rem; }

.trust {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1.5rem 2rem; align-items: start;
  background: var(--bg-alt); border-radius: var(--radius-lg); padding: clamp(1.5rem, 4vw, 2.5rem);
}
.trust-icon { width: 64px; height: 64px; color: var(--green); }
.trust-icon svg { width: 100%; height: 100%; }
.trust h2 { font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); }
.trust .actions { gap: 1rem 2rem; margin-top: 1.25rem; }

.cta-band {
  background: var(--green); color: var(--bg); border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem);
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: center;
}
.cta-band h2 { color: #fff; margin-bottom: 0.3em; }
.cta-band p { color: var(--sage-light); }
.cta-band .actions { margin-top: 0; }
.cta-band .btn-secondary { border-color: rgba(252, 251, 247, 0.35); color: #fff; }
.cta-band .btn-secondary:hover { border-color: #fff; color: #fff; }

.callout {
  border-left: 4px solid var(--orange); background: var(--orange-soft);
  padding: 1rem 1.25rem; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.5rem 0;
}
.callout p:last-child { margin-bottom: 0; }

/* --- Contenu long (pages légales) --- */
.prose { max-width: 74ch; }
.prose h2 { font-size: 1.55rem; font-weight: 600; margin-top: 2.4em; scroll-margin-top: 2rem; }
.prose h3 { font-size: 1.15rem; margin-top: 1.8em; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin-bottom: 0.45em; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.95rem; margin: 1rem 0 1.5rem; }
.prose th, .prose td { text-align: left; padding: 0.65rem 0.5rem; border-bottom: 1px solid var(--line-strong); vertical-align: top; }
.prose th { font-family: var(--font-heading); font-weight: 600; color: var(--ink); }
.prose .actions { margin-top: 1.25rem; }
.toc {
  background: var(--bg-alt); border-radius: var(--radius-sm);
  padding: 1.1rem 1.3rem; margin: 1.5rem 0 2rem;
}
.toc h2 { font-size: 0.78rem; font-weight: 600; margin: 0 0 0.6rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--text); }
.toc ol { margin: 0; padding-left: 1.2rem; columns: 2; column-gap: 2rem; font-size: 0.95rem; }
.toc li { margin: 0.2em 0; break-inside: avoid; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }
.faq details { border-top: 1px solid var(--line-strong); padding: 0.9rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--line-strong); }
.faq summary {
  cursor: pointer; font-family: var(--font-heading); font-weight: 600; font-size: 1.05rem; color: var(--ink);
  list-style: none; display: flex; justify-content: space-between; gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--orange); font-size: 1.4rem; line-height: 1; flex: none; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin-top: 0.7rem; }

.notfound { text-align: center; padding-block: clamp(3rem, 8vw, 6rem); }
.notfound .lead { margin-inline: auto; }
.notfound .actions { justify-content: center; }

/* --- Pied de page --- */
.site-footer { background: var(--green); color: var(--bg); margin-top: clamp(2rem, 6vw, 4rem); }
.footer-main {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.5rem; padding-block: clamp(2.25rem, 4vw, 3.25rem);
}
.footer-brand { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; align-self: start; }
.footer-sep { width: 1px; height: 44px; background: rgba(252, 251, 247, 0.28); }
.footer-tagline {
  font-family: var(--font-heading); font-weight: 500; font-size: 0.7rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--sage-light); line-height: 1.9; margin: 0;
}
.footer-title {
  font-family: var(--font-heading); font-weight: 600; font-size: 0.74rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--sage-light); margin: 0 0 1rem;
}
.footer-main ul { list-style: none; margin: 0; padding: 0; }
.footer-main li { margin-bottom: 0.5rem; }
.footer-main a { color: var(--bg); text-decoration: none; font-family: var(--font-heading); font-weight: 500; font-size: 0.98rem; }
.footer-main a:hover { color: var(--orange); }
.footer-social { display: flex; gap: 0.75rem; margin-top: 1.25rem; }
.footer-social a {
  width: 40px; height: 40px; border: 1px solid rgba(252, 251, 247, 0.25); border-radius: 12px;
  display: grid; place-items: center; color: var(--bg);
}
.footer-social a:hover { border-color: var(--orange); color: var(--orange); }
.footer-social svg { width: 18px; height: 18px; }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 2rem;
  padding-block: 1.25rem 2rem; border-top: 1px solid rgba(252, 251, 247, 0.14);
  font-size: 0.88rem; color: var(--sage-light);
}
.footer-bottom p { margin: 0; }

/* --- Adaptation aux petits écrans --- */
@media (max-width: 900px) {
  .hero > .container, .showcase, .cta-band, .trust { grid-template-columns: 1fr; }
  .hero-about > .container { grid-template-areas: "intro" "visual" "story"; }
  .hero-about .hero-intro, .hero-about .hero-story { align-self: auto; }
  .hero-visual { order: 2; } /* accueil : illustration sous le texte; vitrine : illustration au-dessus, dans l'ordre du HTML */
  .hero-art, .showcase-art { max-width: 520px; }
  .pillars { grid-template-columns: 1fr; }
  .pillar { border-left: 0; border-top: 1px solid rgba(18, 53, 44, 0.16); padding: 1.25rem 0; }
  .pillar:first-child { border-top: 0; padding-top: 0.25rem; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .cta-band .actions { margin-top: 0.5rem; }
}
@media (max-width: 720px) {
  .toc ol { columns: 1; }
}

/* --- Pages légales : sous-navigation et tableaux de l'app --- */
.subnav ul { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; margin: 1.25rem 0 0; padding: 0; }
.subnav a {
  display: inline-block; padding: 0.4rem 0.9rem; border: 1px solid var(--line-strong); border-radius: 999px;
  font-family: var(--font-heading); font-weight: 500; font-size: 0.85rem; color: var(--ink); text-decoration: none;
}
.subnav a:hover { border-color: var(--ink); color: var(--ink); }
.subnav a[aria-current="page"] { background: var(--green); border-color: var(--green); color: var(--bg); }
.legal h2 { font-size: 1.45rem; }
.legal h3 { font-size: 1.15rem; }
.legal-table th { width: 36%; font-weight: 600; }
.legal-table td, .legal-table th { padding: 0.7rem 0.6rem 0.7rem 0; }
.legal p:last-child em { display: block; margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--line-strong); font-size: 0.92rem; }

/* --- Bascule de langue et 404 bilingue --- */
.site-nav a.lang-switch {
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.4rem 0.75rem; border: 1.5px solid var(--line-strong); border-radius: 999px; border-bottom-width: 1.5px;
}
.site-nav a.lang-switch:hover { border-color: var(--ink); }
@media (max-width: 900px) {
  .site-nav a.lang-switch { border-color: rgba(252, 251, 247, 0.35); font-size: 1rem; }
  .site-nav a.lang-switch:hover { border-color: var(--bg); }
}
.notfound-en { margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid var(--line-strong); }
.notfound-en h2 { font-size: clamp(1.9rem, 1.3rem + 2vw, 2.8rem); }

/* --- Téléphones : disposition des maquettes concept/mobile-*.jpg --- */
@media (max-width: 640px) {
  :root { --gutter: clamp(20px, 7vw, 30px); --brand-mark: 34px; }
  body { font-size: 1rem; line-height: 1.55; }
  h1 { font-size: clamp(1.85rem, 9.4vw, 2.75rem); } /* « Une grande envie » et « Des applications » tiennent sur une ligne dès 320 px */
  .lang-fr .hero h1, .lang-fr .page-head h1 { text-wrap: wrap; } /* retours à la ligne naturels des maquettes; l'anglais reste équilibré */
  .eyebrow { font-size: 0.68rem; letter-spacing: 0.24em; margin-bottom: 0.9rem; }
  .lead { font-size: 1.02rem; line-height: 1.5; }
  .hero-copy p:not(.eyebrow), .showcase-copy p { font-size: 1rem; line-height: 1.55; }
  .note { font-size: 1rem; margin-top: 1.25rem; }
  .note::before { width: 9px; height: 9px; margin-top: 0.5em; }

  /* En-tête compact : mot-symbole réduit, bouton de menu à deux barres aligné sur la marge */
  .site-header { padding: 0.4rem 0; } /* le bouton de menu (44 px) donne la hauteur : environ 57 px */
  .brand-name { font-size: 1.5rem; }
  .nav-toggle { margin-right: -9px; }
  .nav-toggle-bars { width: 26px; height: 12px; background: none; }
  .nav-toggle-bars::before, .nav-toggle-bars::after { width: 26px; }
  .nav-toggle-bars::before { top: 0; }
  .nav-toggle-bars::after { top: 10px; }

  /* Héros, en-tête de page et vitrine : illustrations et boutons pleine largeur */
  .hero { padding-block: 1.75rem 0.5rem; }
  .hero > .container { gap: 0.25rem; }
  .hero-art, .showcase-art { max-width: none; }
  .actions { margin-top: 1.5rem; }
  .actions .btn { width: 100%; justify-content: center; padding: 0.9rem 1.5rem; }
  .hero .actions .btn { justify-content: space-between; } /* accueil : libellé à gauche, flèche à droite */
  .btn svg { width: 22px; height: 22px; }
  .rule { width: 36px; height: 3px; margin: 1.1rem 0 1rem; }
  .hero-about { padding-bottom: 1.25rem; }
  .hero-about .rule { margin-bottom: 0; }
  .hero-about .hero-visual { margin-bottom: 0.75rem; }
  .hero-about .hero-art { aspect-ratio: 1402 / 1032; object-fit: cover; object-position: center bottom; } /* rogne la marge crème du haut */
  .page-head { padding-block: 1.75rem 0.5rem; }
  .page-apps .section-tight { padding-top: 0.5rem; }
  .showcase { gap: 0.5rem; }
  .showcase-art { aspect-ratio: 1159 / 1150; object-fit: cover; } /* rogne les marges crème du haut et du bas */
  .showcase-title { font-size: 3rem; }
  .showcase-copy .pill { margin-bottom: 0.9rem; }
  .showcase-copy .mt { text-align: center; }

  /* Bandeau des piliers : rangées serrées, icône en retrait, filets pleine largeur */
  .band { padding-block: 0.6rem; }
  .pillar { grid-template-columns: 64px minmax(0, 1fr); gap: 1.4rem; padding: 1.15rem 0 1.15rem 22px; }
  .pillar:first-child { padding-top: 1.15rem; padding-left: 22px; } /* la règle desktop met son retrait gauche à 0 */
  .pillar-title { font-size: 1.15rem; }
  .pillar p { font-size: 0.95rem; max-width: 20ch; text-wrap: balance; } /* deux lignes équilibrées, comme sur les maquettes */

  /* Pied de page compact : marque, slogan, liens principaux, puis les textes légaux en petit */
  .site-footer { margin-top: 0; }
  .footer-main { display: block; padding-block: 1.5rem 0; }
  .footer-brand { flex-direction: column; align-items: flex-start; gap: 0.3rem; }
  .footer-sep { display: none; }
  .footer-tagline {
    font-family: var(--font-body); font-weight: 400; font-size: 0.85rem; line-height: 1.45;
    letter-spacing: 0; text-transform: none; margin: 0 0 0 calc(var(--brand-mark) + var(--brand-gap));
  }
  .footer-title { display: none; }
  .footer-nav-primary ul { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem 1.5rem; margin-top: 1.4rem; }
  .footer-nav-primary li { margin: 0; }
  .footer-nav-primary .footer-home { display: none; } /* le logo mène déjà à l'accueil */
  .footer-nav-primary a { font-size: 0.92rem; }
  .footer-info { margin-top: 1.4rem; padding-top: 1rem; border-top: 1px solid rgba(252, 251, 247, 0.14); }
  .footer-nav-legal li { margin: 0; }
  .footer-nav-legal a { display: inline-block; padding: 0.2rem 0; font-family: var(--font-body); font-weight: 400; font-size: 0.82rem; color: var(--sage-light); }
  .footer-social { margin-top: 1rem; }
  .footer-bottom { border-top: 0; padding-block: 0.9rem 1.5rem; font-size: 0.8rem; gap: 0.15rem 1rem; }
}