/* ============================================
   NumériAide, feuille de style partagée
   ============================================ */

:root{
  --petrole: #0F454F;
  --petrole-deep: #0A2E33;
  --cuivre: #C1793F;
  --cuivre-soft: rgba(193,121,63,0.14);
  --anthracite: #24262A;
  --cream: #F3EFE8;
  --ink: #3A3C40;
  --ink-soft: #6B6D71;
  --line: rgba(36,38,42,0.12);
  --line-on-dark: rgba(243,239,232,0.16);
  --callout-bg: rgba(15,69,79,0.06);
  --scope-bg: rgba(36,38,42,0.04);

  --display: 'Liberation Sans', Arial, sans-serif;
  --body: 'Liberation Sans', Arial, sans-serif;
  --mono: 'Liberation Mono', 'Courier New', monospace;

  --maxw: 1120px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--body);
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; }
h1,h2,h3,p,ul,figure{ margin:0; }
ul{ padding:0; list-style:none; }

.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--cuivre);
  outline-offset: 2px;
}

/* ---------- Utility text styles ---------- */
.eyebrow{
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 2.5px;
  font-size: 12px;
  font-weight: 700;
  color: var(--cuivre);
}
.eyebrow.on-dark{ color: var(--cuivre); }

h1{
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.08;
  font-size: clamp(34px, 5vw, 58px);
  color: var(--anthracite);
}
h1 .accent{ color: var(--cuivre); }

h2{
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.15;
  font-size: clamp(26px, 3.4vw, 36px);
  color: var(--anthracite);
}

h3{
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  color: var(--anthracite);
}

.lede{
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink);
  max-width: 640px;
}
p.body-text{
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--body);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 26px;
  border-radius: 3px;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{
  background: var(--cuivre);
  color: var(--cream);
}
.btn-primary:hover{ background: #AD6935; }
.btn-ghost{
  background: transparent;
  border-color: var(--line-on-dark);
  color: var(--cream);
}
.btn-ghost:hover{ border-color: var(--cuivre); color: var(--cuivre); }
.btn-ghost.on-light{
  border-color: var(--line);
  color: var(--anthracite);
}
.btn-ghost.on-light:hover{ border-color: var(--cuivre); color: var(--cuivre); }

/* ---------- Header / nav ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(243,239,232,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 16px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
}
.brand-mark{
  width:34px; height:34px;
  border-radius:50%;
  border: 2px solid var(--cuivre);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--display);
  font-weight:700;
  font-size:13px;
  color: var(--anthracite);
  flex: none;
}
.brand-mark span{ color: var(--cuivre); }
.brand-word{
  font-family: var(--display);
  font-weight: 700;
  font-size: 18px;
  color: var(--anthracite);
  letter-spacing: -0.2px;
}
.brand-word .accent{ color: var(--cuivre); }

.nav-links{
  display:flex;
  align-items:center;
  gap: 30px;
}
.nav-links a{
  text-decoration:none;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--anthracite);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{
  border-bottom-color: var(--cuivre);
}
.nav-cta{
  background: var(--anthracite);
  color: var(--cream) !important;
  padding: 10px 18px;
  border-radius: 3px;
  border-bottom: none !important;
}
.nav-cta:hover{ background: var(--petrole); border-bottom: none; }

.nav-toggle{
  display:none;
  background:none; border:none; cursor:pointer;
  padding: 6px;
}
.nav-toggle span{
  display:block; width:24px; height:2px; background: var(--anthracite);
  margin: 5px 0; transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 860px){
  .nav-toggle{ display:block; }
  .nav-links{
    position:absolute;
    top: 100%; left:0; right:0;
    background: var(--cream);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 28px 20px 28px;
    display: none;
  }
  .nav-links.open{ display:flex; }
  .nav-links a{ width:100%; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links a:hover, .nav-links a[aria-current="page"]{ border-bottom: 1px solid var(--cuivre); }
  .nav-cta{ margin-top: 8px; text-align:center; }
}

/* ---------- Hero ---------- */
.hero{
  background: radial-gradient(circle at 18% 12%, var(--petrole) 0%, var(--anthracite) 60%);
  color: var(--cream);
  padding: 84px 0 96px 0;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items:center;
}
@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; gap: 44px; }
}
.hero h1{ color: var(--cream); margin-top: 14px; }
.hero .lede{ color: rgba(243,239,232,0.85); margin-top: 20px; max-width: 560px; }
.hero-ctas{ display:flex; gap:14px; margin-top: 32px; flex-wrap: wrap; }

/* Diagnostic panel (signature element) */
.diag-panel{
  background: rgba(243,239,232,0.04);
  border: 1px solid var(--line-on-dark);
  border-radius: 6px;
  padding: 22px 22px 10px 22px;
}
.diag-panel .diag-title{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(243,239,232,0.55);
  margin-bottom: 18px;
}
.diag-row{
  display:flex;
  align-items:center;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line-on-dark);
}
.diag-row:first-of-type{ border-top:none; }
.diag-label{
  font-family: var(--mono);
  font-size: 12.5px;
  color: rgba(243,239,232,0.8);
  width: 96px;
  flex: none;
}
.diag-bar{
  flex:1;
  height: 6px;
  background: rgba(243,239,232,0.1);
  border-radius: 3px;
  overflow:hidden;
}
.diag-bar-fill{ height:100%; border-radius:3px; }
.diag-bar-fill.warn{ background: var(--cuivre); }
.diag-bar-fill.ok{ background: rgba(243,239,232,0.4); }
.diag-status{
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  width: 74px;
  text-align:right;
  flex: none;
}
.diag-status.warn{ color: var(--cuivre); }
.diag-status.ok{ color: rgba(243,239,232,0.5); }

/* ---------- Sections ---------- */
section{ padding: 84px 0; }
.section-light{ background: var(--cream); }
.section-dark{ background: var(--anthracite); color: var(--cream); }
.section-dark h2{ color: var(--cream); }
.section-dark .eyebrow{ color: var(--cuivre); }

.section-head{ max-width: 640px; margin-bottom: 48px; }
.section-head .eyebrow{ display:block; margin-bottom: 12px; }
.section-head h2{ margin-top: 4px; }
.section-head p{ margin-top: 14px; }

/* ---------- Cards / grids ---------- */
.grid{ display:grid; gap: 24px; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px){
  .grid-3, .grid-2{ grid-template-columns: 1fr; }
}

.card{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 28px 26px;
}
.card .icon-badge{
  width: 46px; height:46px;
  border-radius:50%;
  background: var(--cuivre-soft);
  border: 1.5px solid var(--cuivre);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 18px;
}
.card .icon-badge svg{ width:22px; height:22px; }
.card h3{ margin-bottom: 10px; }
.card p{ font-size: 15px; line-height: 1.55; color: var(--ink-soft); }

.list-dash{ margin:0; padding:0; }
.list-dash li{
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
}
.list-dash li::before{
  content:"";
  position:absolute; left:0; top:10px;
  width:9px; height:3px;
  background: var(--cuivre);
  border-radius:2px;
}
.section-dark .list-dash li{ color: rgba(243,239,232,0.9); }

.callout{
  background: var(--callout-bg);
  border-left: 3px solid var(--petrole);
  border-radius: 4px;
  padding: 22px 26px;
}
.scope-box{
  background: var(--scope-bg);
  border-radius: 4px;
  padding: 22px 26px;
}
.scope-box p{ color: var(--ink-soft); font-size: 15px; }

/* ---------- Steps (comment ça marche) ---------- */
.steps{ display:flex; flex-direction:column; gap: 0; }
.step{
  display:grid;
  grid-template-columns: 84px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.step:first-child{ border-top:none; }
.step-num{
  font-family: var(--mono);
  font-size: 34px;
  font-weight:700;
  color: var(--cuivre);
  line-height:1;
}
.step h3{ margin-bottom: 8px; }
.step p{ font-size: 15.5px; line-height:1.6; color: var(--ink-soft); max-width: 560px; }

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--petrole);
  color: var(--cream);
  padding: 64px 0;
  text-align:center;
}
.cta-band h2{ color: var(--cream); }
.cta-band p{ color: rgba(243,239,232,0.85); margin-top:14px; }
.cta-band .btn{ margin-top: 28px; }

/* ---------- Footer ---------- */
.site-footer{
  background: var(--anthracite);
  color: rgba(243,239,232,0.7);
  padding: 48px 0 32px 0;
}
.footer-grid{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line-on-dark);
}
.footer-brand .brand-word{ color: var(--cream); }
.footer-brand p{ margin-top:10px; font-size:14px; max-width:280px; color: rgba(243,239,232,0.6); }
.footer-col h4{
  font-family: var(--mono);
  text-transform:uppercase;
  letter-spacing:1.5px;
  font-size:11.5px;
  color: rgba(243,239,232,0.5);
  margin-bottom:14px;
}
.footer-col a, .footer-col p{
  display:block;
  font-size: 14.5px;
  color: rgba(243,239,232,0.85);
  text-decoration:none;
  margin-bottom: 8px;
}
.footer-col a:hover{ color: var(--cuivre); }
.footer-bottom{
  padding-top: 22px;
  font-size: 13px;
  color: rgba(243,239,232,0.45);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
}

/* ---------- Mission cards ---------- */
.mission-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
@media (max-width: 860px){
  .mission-grid{ grid-template-columns: 1fr; }
}
.mission-card{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 30px 28px;
  position: relative;
}
.mission-card.featured{
  border-color: var(--cuivre);
  background: linear-gradient(180deg, rgba(193,121,63,0.04) 0%, #fff 120px);
}
.mission-tag{
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 10.5px;
  font-weight: 700;
  color: var(--cuivre);
  display:block;
  margin-bottom: 10px;
}
.mission-card h3{ margin-bottom: 10px; font-size: 20px; }
.mission-card p{ font-size: 15px; line-height: 1.6; color: var(--ink-soft); }
.mission-card .mission-includes{
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.mission-card .mission-includes li{
  font-size: 13.5px;
  color: var(--ink-soft);
  padding-left: 16px;
  position: relative;
  margin-bottom: 7px;
}
.mission-card .mission-includes li::before{
  content:"";
  position:absolute; left:0; top:7px;
  width:7px; height:2.5px;
  background: var(--cuivre);
  border-radius:2px;
}

/* ---------- Zone tags ---------- */
.zone-tags{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 18px;
}
.zone-tag{
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.5px;
  padding: 8px 16px;
  border-radius: 20px;
  border: 1.5px solid var(--line-on-dark);
  color: rgba(243,239,232,0.85);
}
.zone-tags.on-light .zone-tag{
  border-color: var(--line);
  color: var(--ink);
}

/* ---------- Differentiator strip ---------- */
.diff-row{
  display:flex;
  gap: 18px;
  align-items:flex-start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.diff-row:first-child{ border-top: none; }
.diff-num{
  font-family: var(--mono);
  font-size: 15px;
  color: var(--cuivre);
  font-weight: 700;
  flex: none;
  width: 28px;
}
.diff-row p{ font-size: 15px; line-height: 1.55; color: var(--ink); }
.diff-row strong{ color: var(--anthracite); }

/* ---------- Contact form ---------- */
.contact-grid{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
@media (max-width: 900px){
  .contact-grid{ grid-template-columns: 1fr; }
}
.info-row{ margin-bottom: 22px; }
.info-row .label{
  font-family: var(--mono);
  text-transform:uppercase;
  letter-spacing:1.5px;
  font-size: 11.5px;
  color: var(--cuivre);
  margin-bottom: 6px;
  display:block;
}
.info-row a, .info-row span{ font-size: 17px; color: var(--anthracite); text-decoration:none; }

.form-field{ margin-bottom: 20px; }
.form-field label{
  display:block;
  font-size: 14px;
  font-weight:700;
  color: var(--anthracite);
  margin-bottom: 7px;
}
.form-field input, .form-field textarea{
  width:100%;
  font-family: var(--body);
  font-size: 15px;
  padding: 13px 14px;
  border: 1.5px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
}
.form-field input:focus, .form-field textarea:focus{
  border-color: var(--cuivre);
  outline: none;
}
.form-field textarea{ min-height: 130px; resize: vertical; }
.form-note{ font-size: 13px; color: var(--ink-soft); margin-top: 14px; }
.form-success{
  display:none;
  background: var(--callout-bg);
  border-left: 3px solid var(--petrole);
  padding: 16px 18px;
  border-radius: 4px;
  font-size: 14.5px;
  margin-top: 16px;
}
.form-success.visible{ display:block; }