/* ==========================================================================
   UNIREST — Design system
   Petrole / céladon / moutarde — ancré sur le pipeline produit réel
   ========================================================================== */

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

:root{
  --ink:        #102A43;
  --ink-soft:   #29527A;
  --paper:      #F3F6F9;
  --paper-hi:   #FBFAF7;
  --accent:     #2F7FD1;
  --accent-dk:  #1E5FA6;
  --accent-lt:  #6FD6E8;
  --slate:      #5B7083;
  --slate-lt:   #9FB4C7;
  --line:       rgba(16,42,67,0.12);
  --line-on-ink:rgba(255,255,255,0.14);
  --shadow-sm:  0 2px 10px rgba(16,42,67,0.06);
  --shadow-md:  0 12px 32px rgba(16,42,67,0.12);
  --shadow-lg:  0 24px 60px rgba(16,42,67,0.18);
  --radius:     16px;

  --display: 'Space Grotesk', sans-serif;
  --body:    'Inter', sans-serif;
  --mono:    'IBM Plex Mono', monospace;

  --maxw: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* ---------- reveal-on-scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- decorative blobs ---------- */
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.35;pointer-events:none;z-index:0;}
.blob-accent{background:radial-gradient(circle, var(--accent-lt), transparent 70%);}
.blob-deep{background:radial-gradient(circle, var(--accent), transparent 70%);}

/* ---------- wave divider ---------- */
.wave-divider{display:block;width:100%;height:64px;margin-bottom:-2px;}
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(--display);margin:0 0 .5em;line-height:1.1;font-weight:600;}
p{line-height:1.65;margin:0 0 1em;color:var(--ink-soft);}
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-dk);
  display:inline-flex;align-items:center;gap:8px;
  margin-bottom:14px;
}
.eyebrow::before{content:'';width:18px;height:2px;background:var(--accent);display:inline-block;}

/* ---------- boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--display);font-weight:600;font-size:15px;
  padding:13px 26px;border-radius:10px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.btn-primary{background:linear-gradient(135deg, var(--accent), var(--accent-dk));color:#fff;box-shadow:0 8px 20px rgba(47,127,209,0.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(47,127,209,0.45);}
.btn-ghost{border-color:var(--line-on-ink);color:var(--paper-hi);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-ghost-ink{border-color:var(--line);color:var(--ink);}
.btn-ghost-ink:hover{border-color:var(--accent-dk);color:var(--accent-dk);}

/* ---------- topbar ---------- */
.topbar{background:var(--ink);color:var(--slate-lt);font-size:13px;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:40px;}
.topbar a{color:var(--paper-hi);}
.topbar .tel{font-family:var(--mono);color:var(--accent);}

/* ---------- header / nav ---------- */
header.site{background:var(--paper-hi);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;}
header.site .container{display:flex;align-items:center;justify-content:space-between;height:78px;}

.logo{display:flex;align-items:center;gap:12px;font-family:var(--display);font-weight:700;font-size:26px;letter-spacing:-.02em;color:var(--ink);}
.logo .mark{height:46px;width:auto;flex-shrink:0;object-fit:contain;}
.logo .word{color:var(--ink);font-weight:700;}
.logo.on-dark{color:var(--paper-hi);}
.logo.on-dark .word{color:var(--paper-hi);}
.logo small{display:block;font-family:var(--body);font-weight:500;font-size:11px;letter-spacing:.03em;color:var(--slate);text-transform:none;}

nav.main ul{display:flex;gap:30px;align-items:center;}
nav.main a{
  font-family:var(--display);font-weight:600;font-size:14px;
  color:var(--ink-soft);padding:6px 2px;border-bottom:2px solid transparent;
  transition:border-color .15s, color .15s;
}
nav.main a:hover, nav.main a.active{color:var(--ink);border-color:var(--accent);}
.nav-cta{display:flex;align-items:center;gap:18px;}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(ellipse 900px 500px at 85% -10%, rgba(111,214,232,0.18), transparent 60%),
    linear-gradient(160deg, var(--ink) 0%, #0B2036 100%);
  color:var(--paper-hi);padding:96px 0 0;overflow:hidden;position:relative;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;padding-bottom:80px;}
.hero h1{font-size:clamp(34px,4.2vw,54px);letter-spacing:-.02em;}
.hero h1 em{font-style:normal;background:linear-gradient(90deg, var(--accent-lt), var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p.lead{color:var(--slate-lt);font-size:18px;max-width:46ch;}
.hero-actions{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap;}

/* pipeline signature graphic */
.pipeline{
  display:flex;flex-direction:column;gap:0;
  border:1px solid var(--line-on-ink);border-radius:var(--radius);overflow:hidden;
  background:rgba(255,255,255,0.045);backdrop-filter:blur(6px);
  box-shadow:var(--shadow-lg);
  animation:float 6s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}
.pipe-step{
  display:flex;align-items:center;gap:16px;padding:17px 22px;
  border-bottom:1px solid var(--line-on-ink);
  transition:background .2s;
}
.pipe-step:hover{background:rgba(111,214,232,0.06);}
.pipe-step:last-child{border-bottom:none;}
.pipe-num{font-family:var(--mono);color:var(--accent-lt);font-size:13px;width:22px;flex-shrink:0;}
.pipe-icon{width:30px;height:30px;flex-shrink:0;color:var(--accent-lt);}
.pipe-label{font-family:var(--display);font-weight:600;font-size:15px;}
.pipe-sub{font-size:12.5px;color:var(--slate-lt);margin-top:2px;}

/* ---------- section titles ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.on-ink{background:var(--ink);color:var(--paper-hi);}
.section.on-ink p{color:var(--slate-lt);}
.section.alt{background:var(--paper-hi);}
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{font-size:clamp(26px,3vw,36px);}

/* ---------- métiers cards ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.metier-card{
  background:var(--paper-hi);border:1px solid var(--line);border-radius:var(--radius);
  padding:0;overflow:hidden;transition:box-shadow .25s, transform .25s;
  box-shadow:var(--shadow-sm);
}
.metier-card:hover{box-shadow:var(--shadow-md);transform:translateY(-5px);}
.metier-card .photo-panel{height:150px;}
.metier-card .card-body{padding:32px 36px 36px;}
.metier-card h3{font-size:22px;}
.metier-card .tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px;}
.metier-card .tag-list span{
  font-family:var(--mono);font-size:11.5px;color:var(--slate);
  border:1px solid var(--line);border-radius:100px;padding:4px 12px;
}

/* ---------- grille secteurs desservis ---------- */
.sector-grid{
  margin-top:32px;display:grid;grid-template-columns:repeat(6,1fr);gap:14px;
}
.sector{
  display:flex;align-items:center;gap:10px;background:var(--paper-hi);
  border:1px solid var(--line);border-radius:12px;padding:14px 16px;
  font-size:13.5px;font-weight:600;color:var(--ink-soft);
  transition:border-color .2s, transform .2s, box-shadow .2s;
}
.sector:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.sector .ico{font-size:20px;line-height:1;}
@media (max-width:900px){.sector-grid{grid-template-columns:repeat(2,1fr);}}

/* ---------- illustrated photo panels (placeholders SVG) ---------- */
.photo-panel{position:relative;overflow:hidden;background:linear-gradient(135deg, var(--ink) 0%, var(--accent-dk) 100%);}
.photo-panel svg{position:absolute;inset:0;width:100%;height:100%;}
.photo-panel.pattern-1{background:linear-gradient(135deg, #0B2036 0%, var(--accent-dk) 70%, var(--accent) 130%);}
.photo-panel.pattern-2{background:linear-gradient(135deg, var(--accent-dk) 0%, #123a63 60%);}

/* ---------- stats strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-on-ink);border:1px solid var(--line-on-ink);border-radius:var(--radius);overflow:hidden;}
.stat{background:var(--ink);padding:30px 24px;transition:background .2s;}
.stat:hover{background:#0B2036;}
.stat .num{font-family:var(--mono);color:var(--accent-lt);font-size:32px;display:block;}
.stat .label{font-size:13px;color:var(--slate-lt);margin-top:6px;}

/* ---------- confiance logos ---------- */
.trust-strip{display:flex;flex-wrap:wrap;gap:12px;}
.trust-strip .client{
  font-family:var(--display);font-weight:600;color:var(--ink-soft);font-size:13.5px;
  background:var(--paper-hi);border:1px solid var(--line);border-radius:100px;
  padding:9px 18px;transition:border-color .2s, color .2s, transform .2s;
}
.trust-strip .client:hover{border-color:var(--accent);color:var(--accent-dk);transform:translateY(-2px);}

/* ---------- feature grid (fiches fonctionnalités) ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feature-grid-4{grid-template-columns:repeat(4,1fr);}
.feature{
  background:var(--paper-hi);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow-sm);transition:box-shadow .2s, transform .2s;
}
.feature:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.feature .ico{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--ink);
}
.feature .ico.p-blue{background:#DCEBFB;color:#1E5FA6;}
.feature .ico.p-pink{background:#FBE1EE;color:#C23E82;}
.feature .ico.p-violet{background:#EAE1FB;color:#6A3FC2;}
.feature .ico.p-orange{background:#FDEBD8;color:#C2762E;}
.feature .ico.p-green{background:#E1F5E7;color:#2E9E5B;}
.feature h4{font-size:16px;margin-bottom:8px;}
.feature p{font-size:14.5px;margin:0;}

/* ---------- sidebar layout for content pages ---------- */
.page-head{background:var(--ink);color:var(--paper-hi);padding:46px 0;}
.page-head .crumb{font-family:var(--mono);font-size:12.5px;color:var(--slate-lt);margin-bottom:10px;}
.page-head .crumb a:hover{color:var(--accent);}
.page-head h1{font-size:32px;margin:0;}

.content-layout{display:grid;grid-template-columns:270px 1fr;gap:48px;padding:64px 0;align-items:start;}
.side-nav{position:sticky;top:100px;background:var(--paper-hi);border:1px solid var(--line);border-radius:6px;padding:8px;}
.side-nav .grp-label{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);padding:14px 16px 8px;}
.side-nav a{display:block;padding:10px 16px;border-radius:4px;font-size:14.5px;color:var(--ink-soft);}
.side-nav a:hover{background:var(--paper);}
.side-nav a.active{background:var(--ink);color:var(--paper-hi);font-weight:600;}

.prose h2{font-size:24px;margin-top:1.4em;}
.prose h3{font-size:19px;margin-top:1.2em;}
.prose ul{list-style:disc;padding-left:22px;margin-bottom:1.2em;}
.prose li{margin-bottom:.4em;line-height:1.6;color:var(--ink-soft);}
.callout{background:var(--paper);border-left:3px solid var(--accent);padding:20px 24px;border-radius:0 6px 6px 0;margin:28px 0;}
.callout h4{font-family:var(--display);font-size:14px;margin-bottom:6px;}
.callout p{margin:0;font-size:14.5px;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;}
.contact-card{background:var(--ink);color:var(--paper-hi);border-radius:8px;padding:40px;}
.contact-card h3{font-size:20px;}
.contact-card .line{display:flex;gap:12px;margin:18px 0;font-size:14.5px;color:var(--slate-lt);}
.contact-card .line strong{color:var(--paper-hi);font-weight:600;display:block;font-size:15px;}
form.demo{display:grid;gap:16px;}
form.demo .row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
form.demo label{font-size:13px;font-weight:600;font-family:var(--display);margin-bottom:6px;display:block;}
form.demo input,form.demo textarea,form.demo select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:4px;
  font-family:var(--body);font-size:14.5px;background:var(--paper-hi);color:var(--ink);
}
form.demo input:focus,form.demo textarea:focus{outline:2px solid var(--accent);outline-offset:1px;}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:var(--slate-lt);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid var(--line-on-ink);}
footer.site h5{font-family:var(--display);color:var(--paper-hi);font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px;}
footer.site a{display:block;font-size:14px;padding:5px 0;color:var(--slate-lt);}
footer.site a:hover{color:var(--accent);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-size:12.5px;flex-wrap:wrap;gap:12px;}

/* ---------- responsive ---------- */
@media (max-width: 900px){
  nav.main{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:1fr 1fr;}
  .feature-grid-4{grid-template-columns:1fr 1fr;}
  .content-layout{grid-template-columns:1fr;}
  .side-nav{position:static;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  form.demo .row{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;}
}