/* ============================================================
   DKTECHNIQUE — Système de design « DIAGNOSTIC »
   ============================================================ */

/* ---- Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ---- Tokens ---- */
:root {
  /* Couleurs marque */
  --red:        #C41E2A;
  --red-dark:   #A0141F;
  --red-soft:   #E8C3C6;
  --gold:       #C9A24B;
  --gold-soft:  #EBDDBE;
  --ink:        #1A1D23;   /* anthracite */
  --ink-2:      #2A2E36;
  --graphite:   #5C616C;   /* texte secondaire */
  --graphite-2: #8A8F99;
  --line:       #E3DED1;   /* filets sur fond clair */
  --line-ink:   #353A44;   /* filets sur anthracite */
  --paper:      #F6F3EC;   /* blanc cassé chaud */
  --paper-2:    #EFEADF;
  --white:      #FFFFFF;

  /* Typo */
  --font-sans: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Rayons & ombres */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --shadow-card: 0 1px 0 rgba(26,29,35,.04), 0 18px 40px -18px rgba(26,29,35,.28);
  --shadow-hard: 8px 8px 0 var(--ink);
  --shadow-pop:  0 24px 60px -22px rgba(26,29,35,.45);

  /* Layout */
  --maxw: 1240px;
  --gut: 40px;
  --header-h: 76px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 96px; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select { font-family: inherit; font-size: inherit; color: inherit; }
::selection { background: var(--red); color: #fff; }

/* ---- Layout helpers ---- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
.section { padding-block: 112px; }
.section--tight { padding-block: 80px; }

/* ---- Typographie ---- */
.mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--graphite);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--red);
  display: inline-block;
}
.eyebrow--center { justify-content: center; }

h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.04; text-wrap: balance; }
.h-display { font-size: clamp(38px, 5.4vw, 70px); }
.h1 { font-size: clamp(34px, 4.4vw, 56px); }
.h2 { font-size: clamp(28px, 3.4vw, 44px); }
.h3 { font-size: clamp(20px, 2vw, 27px); letter-spacing: -0.015em; }
.lead { font-size: clamp(17px, 1.35vw, 20px); color: var(--graphite); line-height: 1.6; text-wrap: pretty; }
.accent-red { color: var(--red); }
.accent-italic { font-style: italic; color: var(--red); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-head .h2 { margin-top: 18px; }
.section-head .rule { width: 56px; height: 3px; background: var(--gold); margin: 26px auto 0; border-radius: 2px; }

/* ---- Boutons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-weight: 600; font-size: 15.5px; letter-spacing: -0.01em;
  padding: 15px 24px; border-radius: var(--r-sm);
  min-height: 50px;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  border: 1.5px solid transparent;
}
.btn .ico { width: 18px; height: 18px; transition: transform .2s ease; }
.btn-red { background: var(--red); color: #fff; box-shadow: 0 10px 22px -10px rgba(196,30,42,.7); }
.btn-red:hover { background: var(--red-dark); transform: translateY(-2px); box-shadow: 0 16px 30px -12px rgba(196,30,42,.7); }
.btn-red:hover .ico { transform: translateX(3px); }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--ink); color: #fff; transform: translateY(-2px); }
.btn-ghost-light { border-color: rgba(255,255,255,.28); color: #fff; }
.btn-ghost-light:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn-white { background: #fff; color: var(--ink); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-card); }
.btn-sm { min-height: 44px; padding: 11px 18px; font-size: 14px; }
.btn-block { width: 100%; }

.link-arrow {
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px; color: var(--ink);
}
.link-arrow .ico { width: 16px; height: 16px; transition: transform .2s ease; }
.link-arrow:hover { color: var(--red); }
.link-arrow:hover .ico { transform: translateX(4px); }

/* ---- Cartes ---- */
.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
}

/* ---- Placeholder photo ---- */
.photo {
  position: relative; overflow: hidden;
  background:
    repeating-linear-gradient(135deg, var(--paper-2) 0 10px, var(--paper) 10px 20px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  display: grid; place-items: center;
  color: var(--graphite-2);
}
.photo::after {
  content: attr(data-label);
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--graphite); opacity: .8;
  padding: 6px 10px; border: 1px dashed var(--graphite-2); border-radius: 4px;
  background: rgba(255,255,255,.6); text-align: center;
}
.photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.photo.has-img::after { display: none; }
/* Traitement anthracite cohérent quand image présente */
.photo.treat img { filter: grayscale(.35) contrast(1.05); }

/* ---- Reveal au scroll ---- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(246,243,236,.72);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-header.dense {
  background: rgba(246,243,236,.92);
  border-bottom-color: var(--line);
  box-shadow: 0 6px 24px -18px rgba(26,29,35,.5);
}
.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  transition: height .25s ease;
}
.site-header.dense .header-inner { height: 64px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 7px;
  background: var(--red); color: #fff;
  display: grid; place-items: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 15px; letter-spacing: .02em;
  box-shadow: 0 6px 16px -8px rgba(196,30,42,.8);
}
.brand-name { font-family: var(--font-mono); font-weight: 700; font-size: 19px; letter-spacing: .01em; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav-link {
  font-size: 14.5px; font-weight: 500; color: var(--graphite);
  display: inline-flex; align-items: baseline; gap: 7px;
  transition: color .15s ease;
}
.nav-link .num { font-family: var(--font-mono); font-size: 10px; color: var(--gold); font-weight: 600; }
.nav-link:hover { color: var(--ink); }
.header-cta { display: flex; align-items: center; gap: 14px; margin-left: 8px; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 8px; border: 1px solid var(--line); align-items: center; justify-content: center; }
.nav-toggle span { width: 18px; height: 2px; background: var(--ink); position: relative; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: var(--ink); }
.nav-toggle span::before { top: -6px; } .nav-toggle span::after { top: 6px; }

/* ---- Bandeau confiance ---- */
.trust {
  background: var(--ink); color: #fff;
}
.trust-inner {
  display: flex; flex-wrap: wrap; gap: 12px 44px;
  padding-block: 22px; align-items: center; justify-content: space-between;
}
.trust-item {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .03em;
  display: inline-flex; align-items: center; gap: 10px; color: #EDEAE2;
}
.trust-item .tick { color: var(--gold); font-weight: 700; }

/* ---- Footer ---- */
.site-footer { background: var(--ink); color: #C7CBD3; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding-block: 72px 56px; }
.footer-top .brand-name { color: #fff; }
.footer-col h4 { font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--graphite-2); margin-bottom: 18px; font-weight: 600; }
.footer-col a { display: block; padding: 7px 0; font-size: 14.5px; color: #C7CBD3; transition: color .15s ease; }
.footer-col a:hover { color: #fff; }
.footer-desc { font-size: 14.5px; line-height: 1.65; color: #9DA3AD; max-width: 30ch; margin-top: 18px; }
.footer-bottom { border-top: 1px solid var(--line-ink); padding-block: 24px; display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; align-items: center; }
.footer-bottom .mono { font-size: 12px; color: var(--graphite-2); letter-spacing: .04em; }

/* ============================================================
   AUTO-DIAGNOSTIC (carte interactive)
   ============================================================ */
.diag {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-pop);
  overflow: hidden;
  position: relative;
}
.diag-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; border-bottom: 1px solid var(--line);
  background: linear-gradient(var(--paper), var(--paper));
}
.diag-head .label { font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--ink); }
.diag-head .label b { color: var(--red); }
.diag-head .min { font-family: var(--font-mono); font-size: 11.5px; color: var(--graphite); letter-spacing: .04em; }
.diag-body { padding: 26px 24px 24px; }
.diag-step-label { font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: .04em; color: var(--graphite); margin-bottom: 12px; display: flex; gap: 8px; align-items: center; }
.diag-step-label .n { color: var(--red); }
.diag-field { margin-bottom: 24px; }

.select-shell { position: relative; }
.select-shell select {
  width: 100%; appearance: none;
  padding: 16px 44px 16px 16px;
  border: 1.5px solid var(--line); border-radius: var(--r-sm);
  background: var(--paper); font-size: 15.5px; font-weight: 500;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.select-shell select:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 4px rgba(26,29,35,.08); }
.select-shell::after {
  content: ""; position: absolute; right: 18px; top: 50%; width: 9px; height: 9px;
  border-right: 2px solid var(--graphite); border-bottom: 2px solid var(--graphite);
  transform: translateY(-65%) rotate(45deg); pointer-events: none;
}

.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-size: 14.5px; font-weight: 500;
  padding: 10px 16px; min-height: 44px;
  border: 1.5px solid var(--line); border-radius: 999px;
  background: #fff; color: var(--graphite);
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .15s ease;
}
.chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--line); transition: background .15s ease; }
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.sel { background: var(--ink); border-color: var(--ink); color: #fff; }
.chip.sel .dot { background: var(--gold); }

.diag-progress { height: 6px; background: var(--paper-2); border-radius: 999px; overflow: hidden; margin: 4px 0 18px; }
.diag-progress .bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--red), #E0454F); border-radius: 999px; transition: width .5s cubic-bezier(.2,.7,.2,1); }
.diag-foot { display: flex; align-items: center; gap: 14px; }
.diag-meta { font-family: var(--font-mono); font-size: 11px; color: var(--graphite-2); letter-spacing: .04em; }

/* Résultat */
.diag-result { display: none; }
.diag.show-result .diag-quiz { display: none; }
.diag.show-result .diag-result { display: block; animation: fade .5s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.result-pill { font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--red); display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.result-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .3; } }
.lead-list { list-style: none; padding: 0; margin: 16px 0 22px; display: grid; gap: 10px; }
.lead-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; padding: 12px 14px; background: var(--paper); border-radius: var(--r-sm); border: 1px solid var(--line); }
.lead-list li .k { color: var(--gold); font-family: var(--font-mono); font-weight: 700; flex-shrink: 0; }

/* ============================================================
   PARCOURS (sticky stepper)
   ============================================================ */
.parcours-grid { display: grid; grid-template-columns: 280px 1fr; gap: 56px; align-items: start; }
.stepper {
  position: sticky; top: 110px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px 22px; box-shadow: var(--shadow-card);
}
.stepper h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--graphite); margin-bottom: 18px; font-weight: 600; }
.step-list { list-style: none; padding: 0; display: grid; gap: 4px; }
.step-list li a {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 12px; border-radius: var(--r-sm);
  color: var(--graphite); font-weight: 500; font-size: 15px;
  transition: all .2s ease; position: relative;
}
.step-list .idx {
  width: 26px; height: 26px; flex-shrink: 0; border-radius: 50%;
  border: 1.5px solid var(--line); display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: var(--graphite-2);
  transition: all .2s ease;
}
.step-list li a:hover { background: var(--paper); color: var(--ink); }
.step-list li.active a { background: var(--ink); color: #fff; }
.step-list li.active .idx { background: var(--red); border-color: var(--red); color: #fff; }

.service-cards { display: grid; gap: 22px; }
.service-card {
  display: grid; grid-template-columns: 1fr 200px; gap: 28px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px 32px; box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  scroll-margin-top: 110px;
}
.service-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-pop); border-color: var(--gold-soft); }
.service-num { font-family: var(--font-mono); font-size: 15px; font-weight: 700; color: var(--red); letter-spacing: .02em; }
.service-card .h3 { margin: 8px 0 12px; }
.service-card p { color: var(--graphite); font-size: 15.5px; line-height: 1.6; }
.service-card .photo { width: 200px; height: 150px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.tag { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: .03em; padding: 5px 9px; border-radius: 4px; background: var(--paper); border: 1px solid var(--line); color: var(--graphite); }

/* ============================================================
   OUTILS / CALCULATEUR teaser
   ============================================================ */
.tools-card {
  background: var(--ink); color: #fff; border-radius: var(--r-lg);
  overflow: hidden; display: grid; grid-template-columns: 1fr 1fr;
  box-shadow: var(--shadow-pop);
}
.tools-copy { padding: 56px 56px; }
.tools-copy .eyebrow { color: var(--gold); }
.tools-copy .eyebrow::before { background: var(--gold); }
.tools-copy h2 { color: #fff; margin: 16px 0 18px; }
.tools-copy p { color: #B9BDC6; font-size: 16px; line-height: 1.6; margin-bottom: 28px; max-width: 42ch; }
.tools-preview { padding: 44px; background: var(--ink-2); display: flex; flex-direction: column; justify-content: center; gap: 22px; border-left: 1px solid var(--line-ink); }
.calc-row { display: grid; gap: 8px; }
.calc-row .calc-label { display: flex; justify-content: space-between; align-items: baseline; }
.calc-row .calc-label span:first-child { font-size: 14px; color: #C7CBD3; }
.calc-row .calc-label .val { font-family: var(--font-mono); font-weight: 600; color: var(--gold); font-size: 14px; }
.range { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 999px; background: var(--line-ink); outline: none; }
.range::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--red); border: 3px solid #fff; cursor: pointer; box-shadow: 0 2px 6px rgba(0,0,0,.4); }
.range::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--red); border: 3px solid #fff; cursor: pointer; }
.calc-result { border-top: 1px solid var(--line-ink); padding-top: 22px; display: flex; align-items: baseline; justify-content: space-between; }
.calc-result .save { font-family: var(--font-mono); font-size: clamp(28px, 3vw, 40px); font-weight: 700; color: var(--gold); letter-spacing: -.02em; }
.calc-result .save-label { font-size: 13px; color: #9DA3AD; }

/* ============================================================
   MÉTHODE
   ============================================================ */
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.method-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px 26px; box-shadow: var(--shadow-card); position: relative; transition: transform .25s ease, box-shadow .25s ease; }
.method-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-pop); }
.method-step { width: 34px; height: 34px; border-radius: 50%; background: var(--red); color: #fff; display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; font-size: 14px; margin-bottom: 22px; }
.method-card h3 { font-size: 19px; margin-bottom: 10px; letter-spacing: -.01em; }
.method-card p { color: var(--graphite); font-size: 14.5px; line-height: 1.6; }
.method-card .connector { position: absolute; top: 47px; right: -13px; width: 26px; height: 2px; background: var(--gold); z-index: 2; }
.method-card:last-child .connector { display: none; }

/* ============================================================
   RÉFÉRENCES
   ============================================================ */
.refs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 48px; }
.quote {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 38px 36px; box-shadow: var(--shadow-card); position: relative;
}
.quote .mark { font-family: Georgia, serif; font-size: 80px; line-height: .6; color: var(--gold-soft); position: absolute; top: 26px; right: 30px; }
.quote blockquote { font-size: 20px; line-height: 1.45; font-weight: 500; letter-spacing: -.01em; margin-bottom: 24px; position: relative; z-index: 1; }
.quote cite { font-style: normal; font-family: var(--font-mono); font-size: 12.5px; color: var(--graphite); letter-spacing: .02em; display: block; }
.quote cite b { color: var(--ink); display: block; font-weight: 600; margin-bottom: 2px; }
.sectors { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.sector { font-family: var(--font-mono); font-size: 13px; font-weight: 500; letter-spacing: .02em; padding: 11px 18px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--graphite); transition: all .2s ease; }
.sector:hover { border-color: var(--ink); color: var(--ink); }

/* ============================================================
   CTA FINAL
   ============================================================ */
.cta-final { background: var(--red); color: #fff; position: relative; overflow: hidden; }
.cta-final::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(900px 400px at 80% -10%, rgba(255,255,255,.12), transparent 60%);
}
.cta-final .wrap { position: relative; z-index: 1; text-align: center; }
.cta-final h2 { color: #fff; }
.cta-final p { color: rgba(255,255,255,.86); font-size: 18px; margin: 18px auto 36px; max-width: 50ch; }
.cta-final .btn-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- Breadcrumb ---- */
.breadcrumb { display: flex; gap: 10px; align-items: center; font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .03em; color: var(--graphite); }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb .sep { color: var(--gold); }
.breadcrumb .cur { color: var(--ink); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .method-card .connector { display: none; }
}
@media (max-width: 980px) {
  :root { --gut: 24px; }
  .section { padding-block: 80px; }
  .nav, .header-cta .btn { display: none; }
  .nav-toggle { display: flex; }
  .parcours-grid { grid-template-columns: 1fr; gap: 28px; }
  .stepper { position: static; display: none; }
  .tools-card { grid-template-columns: 1fr; }
  .tools-copy { padding: 40px 32px; }
  .refs-grid { grid-template-columns: 1fr; }
  .service-card { grid-template-columns: 1fr; gap: 20px; }
  .service-card .photo { width: 100%; height: 180px; order: -1; }
}
@media (max-width: 640px) {
  .method-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .trust-inner { gap: 10px 24px; }
  .h-display { font-size: 34px; }
}

/* ---- Mobile nav drawer ---- */
.mobile-nav { display: none; position: fixed; inset: 0; z-index: 80; }
.mobile-nav.open { display: block; }
.mobile-nav .scrim { position: absolute; inset: 0; background: rgba(26,29,35,.5); backdrop-filter: blur(2px); }
.mobile-nav .panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(86vw, 360px); background: var(--paper); padding: 24px; box-shadow: var(--shadow-pop); display: flex; flex-direction: column; gap: 6px; }
.mobile-nav .panel .close { align-self: flex-end; width: 44px; height: 44px; font-size: 22px; color: var(--ink); }
.mobile-nav .panel a.m-link { padding: 16px 12px; font-size: 18px; font-weight: 600; border-bottom: 1px solid var(--line); }
.mobile-nav .panel a.m-link[aria-current="page"] { color: var(--red); }
.mobile-nav .panel .btn { margin-top: 18px; }

/* ============================================================
   ADDITIONS — multi-pages, photos réelles
   ============================================================ */
.nav-link.is-active { color: var(--ink); }
.nav-link.is-active .num { color: var(--red); }

/* ---- Full-bleed photo band ---- */
.photo-band { position: relative; min-height: 460px; display: grid; align-items: center; overflow: hidden; background: var(--ink); }
.photo-band img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.photo-band .overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20,22,27,.86) 0%, rgba(20,22,27,.55) 45%, rgba(20,22,27,.2) 100%); }
.photo-band .wrap { position: relative; z-index: 2; padding-block: 80px; }
.photo-band .eyebrow { color: var(--gold); }
.photo-band .eyebrow::before { background: var(--gold); }
.photo-band h2 { color: #fff; max-width: 16ch; margin: 18px 0 18px; }
.photo-band p { color: rgba(255,255,255,.85); font-size: 17px; max-width: 46ch; line-height: 1.6; }
.photo-band .band-meta { position: absolute; right: 40px; bottom: 28px; z-index: 2; font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.55); }

/* photo treatment: anthracite virage on hover-less field images */
.photo.fill { background: var(--ink); }
.photo.fill::after { display: none; }

/* ---- Page hero (sous-pages génériques) ---- */
.page-hero { padding-block: 52px 56px; }
.page-hero .h1 { margin: 18px 0 18px; max-width: 18ch; }
.page-hero .lead { max-width: 56ch; }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.page-hero-grid .photo { height: 100%; min-height: 360px; border-radius: var(--r-lg); }

/* ---- Services hub ---- */
.svc-hub { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.svc-tile { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.svc-tile:hover { transform: translateY(-4px); box-shadow: var(--shadow-pop); border-color: var(--gold-soft); }
.svc-tile .photo { height: 190px; border-radius: 0; border: none; border-bottom: 1px solid var(--line); }
.svc-tile .svc-body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.svc-tile .svc-num { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--red); }
.svc-tile h3 { font-size: 20px; margin: 8px 0 10px; letter-spacing: -.01em; }
.svc-tile p { color: var(--graphite); font-size: 14.5px; line-height: 1.6; flex: 1; }
.svc-tile .link-arrow { margin-top: 18px; }

/* ---- Contact ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info { display: grid; gap: 14px; }
.ci-card { display: flex; gap: 16px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 22px 24px; box-shadow: var(--shadow-card); }
.ci-ic { width: 44px; height: 44px; border-radius: 10px; background: rgba(196,30,42,.1); display: grid; place-items: center; flex-shrink: 0; }
.ci-ic svg { width: 21px; height: 21px; stroke: var(--red); }
.ci-card .k { font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--graphite); }
.ci-card .v { font-size: 17px; font-weight: 600; margin-top: 4px; letter-spacing: -.01em; }
.ci-card .v a:hover { color: var(--red); }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-card); padding: 38px 40px; }
.fgrid { display: grid; gap: 18px; }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.ff { display: grid; gap: 7px; }
.ff label { font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--graphite); }
.ff input, .ff textarea, .ff select { padding: 14px 16px; border: 1.5px solid var(--line); border-radius: var(--r-sm); background: var(--paper); font-size: 15.5px; width: 100%; }
.ff textarea { min-height: 120px; resize: vertical; }
.ff input:focus, .ff textarea:focus, .ff select:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 4px rgba(26,29,35,.07); }
.form-ok { display: none; text-align: center; padding: 40px 20px; }
.form-ok.show { display: block; animation: fade .4s ease; }
.form-ok .ok-badge { width: 64px; height: 64px; border-radius: 50%; background: var(--gold); display: grid; place-items: center; margin: 0 auto 20px; }
.form-ok .ok-badge svg { width: 32px; height: 32px; stroke: #fff; }

/* ---- Ressources / outils hub ---- */
.tools-hub { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.tool-tile { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px 28px; box-shadow: var(--shadow-card); display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease; }
.tool-tile:hover { transform: translateY(-4px); box-shadow: var(--shadow-pop); }
.tool-tile .t-ic { width: 46px; height: 46px; border-radius: 11px; background: var(--paper); display: grid; place-items: center; margin-bottom: 20px; }
.tool-tile .t-ic svg { width: 23px; height: 23px; stroke: var(--ink); }
.tool-tile.feat { background: var(--ink); }
.tool-tile.feat .t-ic { background: rgba(201,162,75,.18); }
.tool-tile.feat .t-ic svg { stroke: var(--gold); }
.tool-tile.feat h3, .tool-tile.feat p { color: #fff; }
.tool-tile.feat p { color: #B9BDC6; }
.tool-tile .badge-free { font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--gold); border: 1px solid var(--gold-soft); padding: 4px 8px; border-radius: 999px; align-self: flex-start; margin-bottom: 16px; }
.tool-tile.feat .badge-free { border-color: rgba(201,162,75,.4); }
.tool-tile h3 { font-size: 19px; margin-bottom: 10px; letter-spacing: -.01em; }
.tool-tile p { color: var(--graphite); font-size: 14.5px; line-height: 1.6; flex: 1; margin-bottom: 18px; }

/* ---- Études de cas ---- */
.case-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-card); margin-bottom: 24px; }
.case-row:nth-child(even) { grid-template-columns: 1fr 1fr; }
.case-row .photo { min-height: 300px; border-radius: 0; border: none; }
.case-row .case-body { padding: 44px 44px; align-self: center; }
.case-row .case-tag { font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--red); }
.case-row h3 { font-size: 24px; margin: 12px 0 14px; letter-spacing: -.015em; }
.case-row p { color: var(--graphite); font-size: 15.5px; line-height: 1.65; margin-bottom: 22px; }
.case-metrics { display: flex; gap: 32px; }
.case-metric .cm-v { font-family: var(--font-mono); font-size: 26px; font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.case-metric .cm-k { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--graphite); margin-top: 4px; }

@media (max-width: 1080px) {
  .svc-hub, .tools-hub { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .page-hero-grid, .contact-grid, .case-row, .case-row:nth-child(even) { grid-template-columns: 1fr; }
  .page-hero-grid .photo { min-height: 240px; order: -1; }
  .case-row .photo { min-height: 220px; }
  .photo-band .band-meta { display: none; }
}
@media (max-width: 640px) {
  .svc-hub, .tools-hub { grid-template-columns: 1fr; }
  .frow { grid-template-columns: 1fr; }
  .case-metrics { gap: 22px; }
}

/* ============================================================
   BLOG — index & articles
   ============================================================ */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-pop); border-color: var(--gold-soft); }
.post-card .photo { height: 196px; border-radius: 0; border: none; border-bottom: 1px solid var(--line); }
.post-card .post-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.post-badge { align-self: flex-start; font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--red); background: rgba(196,30,42,.07); border: 1px solid var(--red-soft); padding: 5px 10px; border-radius: 999px; margin-bottom: 14px; }
.post-card h3 { font-size: 20px; line-height: 1.25; margin-bottom: 12px; letter-spacing: -.012em; }
.post-card p { color: var(--graphite); font-size: 14.5px; line-height: 1.6; flex: 1; }
.post-meta { display: flex; gap: 16px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 11px; color: var(--graphite-2); letter-spacing: .03em; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.post-card .link-arrow { margin-top: 16px; }

/* Featured (premier article) */
.post-feature { grid-column: 1 / -1; display: grid; grid-template-columns: 1.1fr .9fr; }
.post-feature .photo { height: 100%; min-height: 320px; border-bottom: none; border-right: 1px solid var(--line); }
.post-feature .post-body { padding: 44px 48px; justify-content: center; }
.post-feature h3 { font-size: 28px; }
.post-feature p { font-size: 16px; }

/* Article page */
.article-hero { background: var(--ink); color: #fff; padding-block: 52px 60px; }
.article-hero .breadcrumb { color: rgba(255,255,255,.55); margin-bottom: 24px; }
.article-hero .breadcrumb a { color: rgba(255,255,255,.72); }
.article-hero .breadcrumb a:hover { color: #fff; }
.article-hero .breadcrumb .sep, .article-hero .breadcrumb .cur { color: rgba(255,255,255,.5); }
.article-badge { display: inline-block; font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--gold); border: 1px solid rgba(201,162,75,.4); padding: 6px 12px; border-radius: 999px; margin-bottom: 22px; }
.article-hero h1 { color: #fff; max-width: 22ch; font-size: clamp(28px, 3.8vw, 46px); }
.article-meta { display: flex; gap: 24px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 12px; color: rgba(255,255,255,.55); letter-spacing: .03em; margin-top: 24px; }

.article-body { max-width: 760px; margin: 0 auto; }
.article-lede { font-size: 21px; line-height: 1.6; color: var(--graphite); margin-bottom: 8px; text-wrap: pretty; }
.article-body h2 { font-size: clamp(23px, 2.6vw, 31px); letter-spacing: -.02em; margin: 46px 0 16px; }
.article-body h2 .accent { color: var(--red); }
.article-body p { font-size: 17px; line-height: 1.78; color: var(--ink-2); margin-bottom: 20px; text-wrap: pretty; }
.article-body p strong { color: var(--ink); font-weight: 600; }
.article-body > p:first-of-type { margin-top: 4px; }
.callout { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--gold); border-radius: var(--r-md); padding: 24px 28px; margin: 30px 0; box-shadow: var(--shadow-card); }
.callout p { margin: 0; font-size: 16px; line-height: 1.65; }
.dark-list { background: var(--ink); color: #fff; border-radius: var(--r-lg); padding: 34px 38px; margin: 34px 0; box-shadow: var(--shadow-pop); }
.dark-list h3 { color: var(--gold); font-family: var(--font-mono); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 18px; }
.dark-list ol { padding-left: 20px; margin: 0; display: grid; gap: 14px; }
.dark-list li { font-size: 16px; line-height: 1.55; color: rgba(255,255,255,.9); }
.dark-list li strong { color: #fff; }
.pull-quote { background: var(--paper-2); border-left: 4px solid var(--red); border-radius: var(--r-md); padding: 26px 32px; margin: 32px 0; font-size: 20px; line-height: 1.5; font-style: italic; color: var(--ink); }
.pull-quote cite { display: block; margin-top: 14px; font-style: normal; font-family: var(--font-mono); font-size: 12.5px; color: var(--red); letter-spacing: .02em; }
.results-box { background: var(--red); color: #fff; border-radius: var(--r-lg); padding: 38px 36px; margin: 36px 0; text-align: center; box-shadow: var(--shadow-pop); position: relative; overflow: hidden; }
.results-box::before { content: ""; position: absolute; inset: 0; background: radial-gradient(700px 300px at 90% -20%, rgba(255,255,255,.14), transparent 60%); }
.results-box h3 { color: #fff; position: relative; font-size: 20px; margin-bottom: 6px; }
.results-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 24px; position: relative; }
.result-item strong { display: block; font-family: var(--font-mono); font-size: clamp(26px, 3vw, 34px); font-weight: 700; color: #fff; letter-spacing: -.02em; }
.result-item span { font-size: 13px; color: rgba(255,255,255,.85); margin-top: 6px; display: block; line-height: 1.4; }
.references { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: 24px 28px; margin-top: 40px; }
.references h3 { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--graphite); margin-bottom: 14px; }
.references ul { padding-left: 18px; margin: 0; }
.references li { font-size: 14px; color: var(--graphite); margin-bottom: 7px; line-height: 1.5; }
.article-share { display: flex; align-items: center; gap: 16px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line); }
.article-share .by { display: flex; align-items: center; gap: 12px; }
.article-share .by-avatar { width: 46px; height: 46px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; font-size: 15px; }
.article-share .by-name { font-weight: 600; font-size: 15px; }
.article-share .by-role { font-family: var(--font-mono); font-size: 11px; color: var(--graphite); letter-spacing: .03em; }

/* ============================================================
   OUTILS interactifs — chrome commun
   ============================================================ */
.tool-page { padding-block: 44px 80px; }
.tool-frame { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-pop); overflow: hidden; }
.tool-frame-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 24px; border-bottom: 1px solid var(--line); background: var(--paper); }
.tool-frame-head .tf-title { font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ink); }
.tool-frame-head .tf-title b { color: var(--red); }
.tool-frame-head .tf-tag { font-family: var(--font-mono); font-size: 11px; color: var(--graphite); letter-spacing: .04em; }

/* Simulateur brûleur */
.burner-sim { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.burner-stage { background: var(--ink); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px; position: relative; min-height: 380px; }
.burner-viewport { height: 220px; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; position: relative; }
.burner-flame { width: 46px; height: 96px; border-radius: 50% 50% 22% 22%; filter: blur(2px); transform-origin: bottom center; transition: transform .25s ease, background .25s ease, opacity .25s ease; }
.burner-base { width: 110px; height: 12px; background: #4a4f59; border-radius: 5px 5px 0 0; }
.burner-readouts { display: flex; gap: 40px; margin-top: 34px; }
.burner-readout { text-align: center; }
.burner-readout .ro-val { font-family: var(--font-mono); font-size: 30px; font-weight: 700; color: var(--gold); letter-spacing: -.02em; }
.burner-readout .ro-lab { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.55); margin-top: 6px; }
.burner-status { margin-top: 26px; font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line-ink); color: #fff; }
.burner-controls { padding: 44px 44px; display: flex; flex-direction: column; justify-content: center; gap: 30px; }
.bc-field .bc-label { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; font-weight: 500; font-size: 15px; }
.bc-field .bc-label .bc-v { font-family: var(--font-mono); font-weight: 700; font-size: 17px; }
.bc-note { font-size: 13.5px; color: var(--graphite); line-height: 1.6; border-top: 1px solid var(--line); padding-top: 22px; }
.bc-note b { color: var(--ink); }
.range-gas { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 999px; background: var(--line); outline: none; }
.range-gas::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--red); border: 3px solid #fff; cursor: pointer; box-shadow: 0 2px 8px rgba(196,30,42,.4); }
.range-air { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 999px; background: var(--line); outline: none; }
.range-air::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--ink); border: 3px solid #fff; cursor: pointer; box-shadow: 0 2px 8px rgba(26,29,35,.35); }
.range-gas::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--red); border: 3px solid #fff; }
.range-air::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--ink); border: 3px solid #fff; }

@media (max-width: 1080px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) {
  .post-feature { grid-template-columns: 1fr; }
  .post-feature .photo { min-height: 220px; border-right: none; border-bottom: 1px solid var(--line); }
  .post-feature .post-body { padding: 32px 28px; }
  .burner-sim { grid-template-columns: 1fr; }
  .burner-controls { padding: 32px 28px; }
}
@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .results-grid { grid-template-columns: 1fr; gap: 16px; }
  .article-body p { font-size: 16px; }
}