/* =========================================================
   CNUMERIQUE — Design system
   Palette (charte graphique) :
   Navy   #000b2c   Azur vif  #015ba5   Bleu   #02a5eb   Blanc #ffffff
   ========================================================= */

:root{
  --navy: #000b2c;
  --navy-soft: #051538;
  --azur: #015ba5;
  --bleu: #02a5eb;
  --white: #ffffff;
  --mist: #f3f7fb;        /* section alterne, tres clair */
  --mist-line: #e2ebf3;
  --ink: #0c1930;         /* texte sur fond blanc */
  --ink-soft: #55677e;    /* texte secondaire */
  --on-navy: #c9d9ec;     /* texte secondaire sur fond navy */

  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1160px;
  --radius: 14px;
  --ease: cubic-bezier(.22,.9,.32,1);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4{ font-family: var(--font-display); margin: 0; line-height: 1.12; letter-spacing: -0.01em; }
p{ margin: 0; }
button{ font-family: inherit; }

.wrap{ max-width: var(--container); margin: 0 auto; padding: 0 24px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--bleu);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Eyebrow / labels (mono, data feel) ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bleu);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}
.eyebrow::before{
  content: "";
  width: 7px; height: 7px;
  background: var(--bleu);
  border-radius: 1px;
  transform: rotate(45deg);
  flex: none;
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{ background: var(--bleu); color: var(--navy); }
.btn-primary:hover{ background: #33b8f2; }
.btn-outline-light{ border-color: rgba(255,255,255,.35); color: var(--white); }
.btn-outline-light:hover{ border-color: var(--bleu); background: rgba(2,165,235,.1); }
.btn-outline-dark{ border-color: rgba(1,11,44,.2); color: var(--navy); }
.btn-outline-dark:hover{ border-color: var(--azur); background: rgba(1,91,165,.06); }
.btn-ghost-navy{ color: var(--navy); padding-left: 4px; padding-right: 4px; border-radius: 0; }
.btn-ghost-navy svg{ transition: transform .25s var(--ease); }
.btn-ghost-navy:hover svg{ transform: translateX(4px); }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header .wrap{
  display: flex; align-items: center; justify-content: space-between;
  height: 100px;
}
.brand img{ height: 90px; width: auto; }
.main-nav{ display: flex; align-items: center; gap: 40px; }
.main-nav ul{ display: flex; gap: 34px; }
.main-nav a{
  font-size: 14.5px; font-weight: 600; color: var(--on-navy);
  position: relative; padding: 6px 0;
  transition: color .2s var(--ease);
}
.main-nav a::after{
  content:""; position: absolute; left:0; right:100%; bottom:0; height: 2px;
  background: var(--bleu); transition: right .28s var(--ease);
}
.main-nav a:hover, .main-nav a[aria-current="page"]{ color: var(--white); }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after{ right: 0; }
.header-actions{ display: flex; align-items: center; gap: 18px; }
.header-phone{
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 13.5px; color: var(--on-navy);
}
.header-phone svg{ flex: none; }

.nav-toggle{
  display: none;
  width: 42px; height: 42px;
  background: transparent; border: none; cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span{ width: 22px; height: 2px; background: var(--white); transition: all .25s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 880px){
  .header-phone{ display: none; }
  .nav-toggle{ display: flex; }
  .main-nav{
    position: fixed; inset: 100px 0 0 0;
    background: var(--navy);
    flex-direction: column; align-items: stretch;
    gap: 0; padding: 10px 24px 30px;
    transform: translateY(-8px);
    opacity: 0; visibility: hidden;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
  }
  .main-nav.open{ opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav ul{ flex-direction: column; gap: 0; }
  .main-nav ul li{ border-bottom: 1px solid rgba(255,255,255,.08); }
  .main-nav ul a{ display: block; padding: 18px 2px; font-size: 17px; }
  .header-actions{ flex-direction: column; align-items: stretch; margin-top: 20px; gap: 14px; }
  .header-actions .header-phone{ display: flex; justify-content: center; padding: 10px 0; }
  .header-actions .btn{ justify-content: center; }
}

/* ---------- Hero ---------- */
.hero{
  position: relative;
  background: var(--navy);
  color: var(--white);
  overflow: hidden;
  padding: 96px 0 120px;
}
.hero-arc{
  position: absolute; top: 50%; right: -18%;
  width: 900px; height: 900px;
  transform: translateY(-50%);
  border-radius: 50%;
  border: 120px solid var(--azur);
  opacity: .16;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 0 62%, 46% 62%, 46% 38%, 0 38%);
  pointer-events: none;
}
.hero-grid{
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center;
}
.hero h1{
  font-size: clamp(34px, 4.6vw, 54px);
  font-weight: 800;
  margin: 22px 0 24px;
}
.hero h1 em{
  font-style: normal;
  background: linear-gradient(90deg, var(--bleu), #7fd8ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead{
  font-size: 18px; color: var(--on-navy); max-width: 46ch; margin-bottom: 36px;
}
.hero-ctas{ display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-stats{ display: flex; gap: 34px; flex-wrap: wrap; }
.hero-stats div{ border-left: 2px solid rgba(255,255,255,.18); padding-left: 14px; }
.hero-stats strong{ display: block; font-family: var(--font-display); font-size: 22px; font-weight: 800; }
.hero-stats span{ font-size: 12.5px; color: var(--on-navy); }

/* Signature visual: paper -> circuit transformation */
.hero-visual{ position: relative; }
.flow-card{
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 34px 30px;
  backdrop-filter: blur(6px);
}
.flow-svg{ width: 100%; height: auto; display: block; }
.flow-caption{
  display: flex; justify-content: space-between; margin-top: 18px;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em;
  color: var(--on-navy); text-transform: uppercase;
}
.flow-caption span:last-child{ color: var(--bleu); }

.doc-path{ stroke: #6f86a8; stroke-width: 2; fill: none; stroke-dasharray: 340; stroke-dashoffset: 340; animation: draw 2.4s var(--ease) forwards; }
.doc-lines line{ stroke: #6f86a8; stroke-width: 2; stroke-dasharray: 40; stroke-dashoffset: 40; animation: draw-line 1s var(--ease) forwards; }
.doc-lines line:nth-child(1){ animation-delay: .9s; }
.doc-lines line:nth-child(2){ animation-delay: 1.05s; }
.doc-lines line:nth-child(3){ animation-delay: 1.2s; }
.circuit-path{ stroke: var(--bleu); stroke-width: 2; fill: none; stroke-dasharray: 900; stroke-dashoffset: 900; animation: draw-circuit 2.2s var(--ease) forwards; animation-delay: 1.1s; }
.circuit-dot{ fill: var(--bleu); opacity: 0; animation: pop 0.5s var(--ease) forwards; }
.circuit-dot:nth-of-type(1){ animation-delay: 2.4s; }
.circuit-dot:nth-of-type(2){ animation-delay: 2.6s; }
.circuit-dot:nth-of-type(3){ animation-delay: 2.8s; }
.circuit-dot:nth-of-type(4){ animation-delay: 3s; }
.arrow-flow{ stroke: #6f86a8; stroke-width: 2; opacity: 0; animation: fade-in .6s var(--ease) forwards; animation-delay: 1.6s; }

@keyframes draw{ to{ stroke-dashoffset: 0; } }
@keyframes draw-line{ to{ stroke-dashoffset: 0; } }
@keyframes draw-circuit{ to{ stroke-dashoffset: 0; } }
@keyframes pop{ to{ opacity: 1; } }
@keyframes fade-in{ to{ opacity: 1; } }

@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-arc{ display: none; }
  .hero{ padding: 56px 0 72px; }
}

/* ---------- Section basics ---------- */
section{ padding: 96px 0; }
.section-light{ background: var(--white); }
.section-mist{ background: var(--mist); }
.section-navy{ background: var(--navy); color: var(--white); }
.section-head{ max-width: 640px; margin-bottom: 56px; }
.section-head .eyebrow{ margin-bottom: 16px; }
.section-head h2{ font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; }
.section-head p{ margin-top: 16px; font-size: 16.5px; color: var(--ink-soft); }
.section-navy .section-head p{ color: var(--on-navy); }
.section-head.center{ margin-left: auto; margin-right: auto; text-align: center; }

@media (max-width: 640px){
  section{ padding: 64px 0; }
  .section-head{ margin-bottom: 38px; }
}

/* ---------- Before / After (papier -> numerique) ---------- */
.shift{
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px; align-items: center;
}
.shift-card{
  border-radius: var(--radius);
  padding: 34px 30px;
  border: 1px solid var(--mist-line);
}
.shift-card.before{ background: var(--mist); }
.shift-card.after{ background: var(--navy); color: var(--white); }
.shift-card .tag{ font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; }
.shift-card.before .tag{ color: var(--ink-soft); }
.shift-card.after .tag{ color: var(--bleu); }
.shift-card h3{ font-size: 21px; margin: 12px 0 18px; }
.shift-card ul li{ position: relative; padding-left: 22px; margin-bottom: 12px; font-size: 15px; }
.shift-card.before ul li{ color: var(--ink-soft); }
.shift-card.after ul li{ color: var(--on-navy); }
.shift-card ul li::before{ content: "×"; position: absolute; left: 0; color: #b7433b; font-weight: 700; }
.shift-card.after ul li::before{ content: "✓"; color: var(--bleu); }
.shift-arrow{ display: flex; align-items: center; justify-content: center; }
.shift-arrow svg{ width: 40px; height: 40px; }

@media (max-width: 760px){
  .shift{ grid-template-columns: 1fr; }
  .shift-arrow{ transform: rotate(90deg); margin: -4px 0; }
}

/* ---------- Service cards ---------- */
.services-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.service-card{
  border: 1px solid var(--mist-line);
  border-radius: var(--radius);
  padding: 32px 28px;
  background: var(--white);
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.service-card:hover{ border-color: var(--bleu); transform: translateY(-4px); box-shadow: 0 18px 40px -22px rgba(1,91,165,.35); }
.service-card .num{ font-family: var(--font-mono); font-size: 12px; color: var(--bleu); letter-spacing: .08em; }
.service-icon{
  width: 46px; height: 46px; border-radius: 12px;
  background: rgba(2,165,235,.1);
  display: flex; align-items: center; justify-content: center;
  margin: 18px 0 20px;
}
.service-card h3{ font-size: 19px; margin-bottom: 10px; }
.service-card p{ color: var(--ink-soft); font-size: 15px; }
.service-card .tags{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.service-card .tags span{
  font-family: var(--font-mono); font-size: 11px; padding: 5px 10px;
  background: var(--mist); border-radius: 6px; color: var(--azur);
}

@media (max-width: 900px){ .services-grid{ grid-template-columns: 1fr; } }

/* ---------- Process steps (numbered = real sequence) ---------- */
.process{ counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.process::before{
  content: ""; position: absolute; top: 27px; left: 6%; right: 6%; height: 1px;
  background: var(--mist-line);
}
.section-navy .process::before{ background: rgba(255,255,255,.14); }
.process-step{ position: relative; padding: 0 18px 0 0; }
.process-step .step-index{
  counter-increment: step;
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--navy); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 600; font-size: 15px;
  margin-bottom: 22px; position: relative; z-index: 2;
}
.process-step .step-index::before{ content: counter(step, decimal-leading-zero); }
.process-step h4{ font-size: 16.5px; margin-bottom: 8px; }
.process-step p{ font-size: 14.5px; color: var(--ink-soft); }
.section-navy .process-step p{ color: var(--on-navy); }

@media (max-width: 800px){
  .process{ grid-template-columns: 1fr; gap: 34px; }
  .process::before{ display: none; }
}

/* ---------- Case study / Portfolio ---------- */
.case-card{
  display: grid; grid-template-columns: .95fr 1.05fr;
  border: 1px solid var(--mist-line);
  border-radius: 20px;
  overflow: hidden;
  background: var(--white);
}
.case-visual{
  background: var(--navy);
  padding: 40px;
  display: flex; flex-direction: column; justify-content: space-between;
  color: var(--white);
  position: relative;
  min-height: 320px;
}
.case-visual .sector{ font-family: var(--font-mono); font-size: 12px; color: var(--bleu); letter-spacing: .1em; text-transform: uppercase; }
.case-visual h3{ font-size: 26px; margin-top: 14px; }
.case-visual .loc{ margin-top: 10px; color: var(--on-navy); font-size: 14px; }
.case-metric{ margin-top: auto; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.14); }
.case-metric strong{ display: block; font-size: 28px; font-family: var(--font-display); font-weight: 800; color: var(--bleu); }
.case-metric span{ font-size: 13px; color: var(--on-navy); }
.case-body{ padding: 40px; }
.case-body h4{ font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); font-family: var(--font-mono); margin-bottom: 10px; }
.case-body p{ color: var(--ink); font-size: 15.5px; margin-bottom: 26px; }
.case-scope{ display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.case-scope li{
  font-size: 14px; padding: 12px 14px; background: var(--mist); border-radius: 10px; color: var(--ink);
  display: flex; align-items: center; gap: 10px;
}
.case-scope li::before{ content: ""; width: 6px; height: 6px; background: var(--bleu); border-radius: 2px; transform: rotate(45deg); flex: none; }

@media (max-width: 860px){
  .case-card{ grid-template-columns: 1fr; }
  .case-scope{ grid-template-columns: 1fr; }
}

.upcoming-note{
  margin-top: 32px; padding: 20px 24px; border: 1px dashed var(--mist-line); border-radius: 14px;
  font-size: 14.5px; color: var(--ink-soft); display: flex; align-items: center; gap: 12px;
}
.upcoming-note svg{ flex: none; color: var(--bleu); }

/* ---------- CTA banner ---------- */
.cta-band{
  background: var(--navy); color: var(--white);
  border-radius: 24px;
  padding: 56px 50px;
  display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-band::after{
  content: ""; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px;
  border-radius: 50%; border: 40px solid var(--azur); opacity: .25;
}
.cta-band h3{ font-size: 26px; max-width: 26ch; position: relative; z-index: 1; }
.cta-band .cta-actions{ position: relative; z-index: 1; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer{ background: var(--navy); color: var(--on-navy); padding: 64px 0 30px; }
.footer-top{ display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 40px; padding-bottom: 46px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand img{ height: 110px; margin-bottom: 16px; }
.footer-brand p{ font-size: 14px; max-width: 32ch; }
.footer-col h5{ color: var(--white); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; font-family: var(--font-mono); margin-bottom: 18px; }
.footer-col li{ margin-bottom: 12px; font-size: 14.5px; }
.footer-col a:hover{ color: var(--bleu); }
.footer-bottom{ display: flex; justify-content: space-between; padding-top: 26px; font-size: 13px; flex-wrap: wrap; gap: 10px; }

@media (max-width: 760px){
  .footer-top{ grid-template-columns: 1fr; gap: 30px; }
}

/* ---------- Reveal on scroll ---------- */
.reveal{ opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* ---------- Page hero (sous-pages) ---------- */
.page-hero{ background: var(--navy); color: var(--white); padding: 64px 0 70px; }
.page-hero .eyebrow{ margin-bottom: 16px; }
.page-hero h1{ font-size: clamp(28px, 4vw, 42px); font-weight: 800; }
.page-hero p{ margin-top: 16px; color: var(--on-navy); max-width: 56ch; font-size: 16.5px; }
.breadcrumb{ font-family: var(--font-mono); font-size: 12.5px; color: var(--on-navy); margin-bottom: 20px; }
.breadcrumb a:hover{ color: var(--bleu); }

/* ---------- Contact page ---------- */
.contact-grid{ display: grid; grid-template-columns: .95fr 1.15fr; gap: 50px; }
.contact-info-card{
  background: var(--navy); color: var(--white); border-radius: 20px; padding: 40px 34px; height: fit-content;
}
.contact-info-card h3{ font-size: 20px; margin-bottom: 24px; }
.contact-info-row{ display: flex; gap: 14px; padding: 16px 0; border-top: 1px solid rgba(255,255,255,.1); }
.contact-info-row:first-of-type{ border-top: none; }
.contact-info-row .ic{
  width: 38px; height: 38px; border-radius: 10px; background: rgba(2,165,235,.14);
  display: flex; align-items: center; justify-content: center; flex: none; color: var(--bleu);
}
.contact-info-row div p:first-child{ font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--on-navy); margin-bottom: 3px; }
.contact-info-row div p:last-child{ font-size: 15px; }
.contact-info-row a:hover{ color: var(--bleu); }

.form-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field{ display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field.full{ grid-column: 1 / -1; }
.field label{ font-size: 13.5px; font-weight: 600; color: var(--ink); }
.field input, .field select, .field textarea{
  border: 1px solid var(--mist-line); border-radius: 10px; padding: 13px 15px;
  font-family: var(--font-body); font-size: 15px; color: var(--ink); background: var(--white);
  transition: border-color .2s var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color: var(--bleu); outline: none; }
.field textarea{ resize: vertical; min-height: 120px; }
.hp{ position: absolute; left: -9999px; }
.form-note{ font-size: 12.5px; color: var(--ink-soft); margin-top: 6px; }
.form-success{
  display: none; background: var(--mist); border: 1px solid var(--mist-line); border-radius: 14px;
  padding: 20px; margin-top: 20px; font-size: 14.5px; color: var(--ink);
}

@media (max-width: 860px){
  .contact-grid{ grid-template-columns: 1fr; }
  .form-grid{ grid-template-columns: 1fr; }
}

/* ---------- Services page detail blocks ---------- */
.service-detail{ display: grid; grid-template-columns: .5fr 1.5fr; gap: 40px; padding: 54px 0; border-top: 1px solid var(--mist-line); }
.service-detail:first-of-type{ border-top: none; padding-top: 0; }
.service-detail .sd-head .num{ font-family: var(--font-mono); color: var(--bleu); font-size: 13px; }
.service-detail .sd-head h3{ font-size: 25px; margin: 10px 0 0; }
.sd-body p{ color: var(--ink-soft); font-size: 16px; margin-bottom: 24px; max-width: 62ch; }
.sd-points{ display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.sd-points li{ font-size: 14.5px; padding: 13px 16px; background: var(--mist); border-radius: 10px; display: flex; gap: 10px; align-items: flex-start; }
.sd-points li::before{ content: "✓"; color: var(--bleu); font-weight: 700; flex: none; }

@media (max-width: 760px){
  .service-detail{ grid-template-columns: 1fr; gap: 18px; }
  .sd-points{ grid-template-columns: 1fr; }
}

/* ---------- FAQ ---------- */
.faq-item{ border-top: 1px solid var(--mist-line); }
.faq-item:last-child{ border-bottom: 1px solid var(--mist-line); }
.faq-q{
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 22px 2px; font-size: 16px; font-weight: 600; color: var(--ink);
}
.faq-q svg{ flex: none; transition: transform .25s var(--ease); color: var(--bleu); }
.faq-item[open] .faq-q svg{ transform: rotate(45deg); }
.faq-a{ padding: 0 2px 22px; color: var(--ink-soft); font-size: 15px; max-width: 68ch; }