/* ============================================================
   CCP GROUP — Design System
   Concept: "Le plan avant la construction" — a coordination
   agency drawn in the language of technical blueprints:
   registration marks, ruled grids, coordinate labels, precise
   line-work. Ink Navy + Paper, with a single Brass accent
   reserved for calls to action and the signature diagram.
   ============================================================ */

:root{
  /* --- Color tokens --- */
  --ink:        #101B2D;   /* primary dark / text on paper */
  --ink-2:      #1B2A44;   /* secondary dark surface */
  --paper:      #F7F4EC;   /* light base */
  --paper-2:    #EFEAdd;   /* light base, slightly deeper */
  --line:       #D8D2C1;   /* hairline on paper */
  --line-dark:  rgba(247,244,236,0.16); /* hairline on ink */
  --cyan:       #5A94A8;   /* blueprint cyan — structure, links, grid */
  --cyan-dim:   rgba(90,148,168,0.35);
  --brass:      #C08A3E;   /* single warm accent — CTAs, signature */
  --brass-2:    #A9732C;
  --slate:      #4B5468;   /* body text on paper */
  --cream-text: #E9E4D6;   /* body text on ink */
  --ok:         #4B7A5A;

  --radius: 2px;
  --container: 1180px;

  --serif-display: "Fraunces", "Georgia", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important;}
}
body{
  font-family:var(--sans);
  color:var(--slate);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,textarea{font:inherit;}

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:28px;
}

/* ---------- Typography ---------- */
h1,h2,h3,h4{
  font-family:var(--serif-display);
  color:var(--ink);
  font-weight:600;
  letter-spacing:-0.01em;
  line-height:1.08;
}
h1{font-size:clamp(2.6rem,5.2vw,4.6rem);}
h2{font-size:clamp(2rem,3.4vw,3rem);}
h3{font-size:clamp(1.25rem,1.8vw,1.55rem);}

.eyebrow{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--cyan);
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--cyan);
  display:inline-block;
}
.eyebrow.on-ink{color:var(--cream-text);opacity:0.7;}
.eyebrow.on-ink::before{background:var(--cream-text);opacity:0.7;}

.lede{
  font-size:1.08rem;
  color:var(--slate);
  max-width:52ch;
}
.on-ink .lede, .lede.on-ink{color:var(--cream-text);opacity:0.82;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  font-family:var(--mono);
  font-size:0.82rem;
  letter-spacing:0.05em;
  text-transform:uppercase;
  border:1px solid transparent;
  border-radius:var(--radius);
  transition:transform .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--brass);outline-offset:3px;}

.btn-primary{
  background:var(--brass);
  color:var(--ink);
}
.btn-primary:hover{background:var(--brass-2);}

.btn-ghost{
  border-color:currentColor;
  color:var(--ink);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}

.btn-ghost.on-ink{
  color:var(--cream-text);
  border-color:var(--line-dark);
}
.btn-ghost.on-ink:hover{background:var(--cream-text);color:var(--ink);}

.btn-arrow{transition:transform .25s ease;}
.btn:hover .btn-arrow{transform:translateX(3px);}

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(247,244,236,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease;
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-block:16px;
}
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{width:38px;height:38px;flex-shrink:0;}
.logo-word{
  font-family:var(--serif-display);
  font-weight:600;
  font-size:1.15rem;
  color:var(--ink);
  letter-spacing:-0.01em;
}
.logo-word span{color:var(--brass);}

.nav-desktop{display:flex;align-items:center;gap:34px;}
.nav-desktop a{
  font-family:var(--mono);
  font-size:0.78rem;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--slate);
  position:relative;
  padding-bottom:3px;
}
.nav-desktop a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:1px;
  background:var(--brass);
  transition:width .25s ease;
}
.nav-desktop a:hover::after{width:100%;}
.nav-desktop a:hover{color:var(--ink);}

.header-cta{display:flex;align-items:center;gap:18px;}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:6px;}
.nav-toggle span{width:22px;height:1.5px;background:var(--ink);display:block;}

.mobile-nav{
  position:fixed;inset:0;
  background:var(--ink);
  z-index:99;
  display:flex;flex-direction:column;
  justify-content:center;
  padding:32px;
  transform:translateY(-100%);
  transition:transform .4s cubic-bezier(.65,0,.35,1);
}
.mobile-nav.open{transform:translateY(0);}
.mobile-nav a{
  font-family:var(--serif-display);
  font-size:2rem;
  color:var(--cream-text);
  padding-block:14px;
  border-bottom:1px solid var(--line-dark);
}
.mobile-nav .btn{margin-top:24px;align-self:flex-start;}

/* ---------- Section scaffolding ---------- */
section{
  position:relative;
  padding-block:112px;
}
section.tight{padding-block:88px;}
.section-head{
  max-width:640px;
  margin-bottom:56px;
}
.section-head h2{margin-top:14px;}
.section-head .lede{margin-top:16px;}

.on-ink{background:var(--ink);color:var(--cream-text);}
.on-ink h1,.on-ink h2,.on-ink h3,.on-ink h4{color:#fff;}

.paper-2{background:var(--paper-2);}

.divider{
  border:none;
  border-top:1px solid var(--line);
  margin:0;
}
.divider.on-ink{border-top-color:var(--line-dark);}

/* corner registration marks — signature motif */
.reg-frame{position:relative;}
.reg-frame::before,.reg-frame::after,
.reg-frame .rc-tl,.reg-frame .rc-br{
  content:"";
  position:absolute;
  width:14px;height:14px;
  border:1px solid var(--cyan);
  opacity:0.55;
}
.reg-frame::before{top:-1px;left:-1px;border-right:none;border-bottom:none;}
.reg-frame::after{bottom:-1px;right:-1px;border-left:none;border-top:none;}

/* ---------- Hero ---------- */
.hero{
  min-height:100svh;
  display:flex;
  align-items:center;
  background:var(--ink);
  color:var(--cream-text);
  padding-top:140px;
  padding-bottom:80px;
  overflow:hidden;
}
.hero-grid-bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%, black 40%, transparent 90%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-inner{max-width:820px;}
.hero-tag{
  font-family:var(--mono);
  font-size:0.78rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--brass);
  margin-bottom:22px;
  display:block;
}
.hero h1{
  color:#fff;
  margin-bottom:24px;
}
.hero h1 em{
  font-style:normal;
  color:var(--brass);
}
.hero .lede{
  font-size:1.18rem;
  max-width:56ch;
  margin-bottom:38px;
  color:var(--cream-text);
  opacity:0.65;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-bottom:56px;
}
.hero-meta{
  display:flex;
  gap:40px;
  flex-wrap:wrap;
  font-family:var(--mono);
  font-size:0.78rem;
  color:var(--cream-text);
  opacity:0.65;
}
.hero-meta strong{
  display:block;
  font-family:var(--serif-display);
  font-size:1.5rem;
  color:#fff;
  opacity:1;
  font-weight:600;
}

/* ---------- Why us / feature list ---------- */
.why-grid{
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.why-item{
  background:var(--paper);
  padding:32px 22px;
}
.why-item .num{
  font-family:var(--mono);
  font-size:0.72rem;
  color:var(--cyan);
  display:block;
  margin-bottom:18px;
}
.why-item h3{font-size:1.05rem;margin-bottom:8px;}
.why-item p{font-size:0.92rem;color:var(--slate);}

/* ---------- Services ---------- */
.services{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.service-card{
  background:var(--paper);
  padding:52px 44px;
  display:flex;
  flex-direction:column;
  gap:20px;
  min-height:340px;
}
.service-card .tag{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--brass);
}
.service-card h3{font-size:1.7rem;margin-bottom:0;}
.service-card p{max-width:44ch;flex:1;}
.service-card .price{
  font-family:var(--mono);
  font-size:0.85rem;
  color:var(--cyan);
}

/* ---------- Pour qui / audience cards ---------- */
.audience-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.audience-card{
  background:var(--ink);
  color:var(--cream-text);
  padding:40px 32px;
  position:relative;
  border-top:2px solid var(--brass);
}
.audience-card h3{color:#fff;margin-bottom:18px;font-size:1.4rem;}
.audience-card ul li{
  position:relative;
  padding-left:20px;
  font-size:0.94rem;
  opacity:0.85;
  margin-bottom:10px;
}
.audience-card ul li::before{
  content:"→";
  position:absolute;left:0;top:0;
  color:var(--brass);
}

/* ---------- Method / timeline ---------- */
.method-track{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  position:relative;
}
.method-track::before{
  content:"";
  position:absolute;
  top:20px;left:0;right:0;
  height:1px;
  background:repeating-linear-gradient(90deg, var(--cyan) 0 6px, transparent 6px 12px);
  opacity:0.5;
}
.method-step{padding-right:24px;position:relative;}
.method-step .step-marker{
  width:40px;height:40px;
  border:1px solid var(--cyan);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);
  font-size:0.85rem;
  color:var(--cyan);
  background:var(--paper);
  position:relative;
  z-index:2;
  margin-bottom:24px;
}
.method-step h3{font-size:1.15rem;margin-bottom:10px;}
.method-step p{font-size:0.92rem;}
.method-step .quote{
  margin-top:14px;
  padding:14px 16px;
  border-left:2px solid var(--brass);
  background:var(--paper-2);
  font-size:0.85rem;
  font-style:italic;
  color:var(--ink);
}

/* ---------- How we work / coordination diagram ---------- */
.coord-wrap{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:64px;
  align-items:center;
}
.coord-text p{margin-bottom:18px;color:var(--cream-text);opacity:0.85;font-size:1.02rem;}
.coord-text p:last-of-type{margin-bottom:0;}
.coord-diagram{
  padding:20px;
}

/* ---------- Portfolio ---------- */
.portfolio-notice{
  font-family:var(--mono);
  font-size:0.8rem;
  color:var(--slate);
  background:var(--paper-2);
  border:1px solid var(--line);
  padding:14px 18px;
  margin-bottom:44px;
  display:inline-flex;
  gap:10px;
  align-items:flex-start;
}
.portfolio-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.port-card{
  background:var(--ink);
  overflow:hidden;
  position:relative;
}
.port-visual{
  aspect-ratio:4/3;
  position:relative;
  overflow:hidden;
}
.port-visual svg{width:100%;height:100%;}
.port-body{padding:22px 24px 26px;}
.port-body .tag{
  font-family:var(--mono);
  font-size:0.68rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--brass);
  display:block;
  margin-bottom:8px;
}
.port-body h3{color:#fff;font-size:1.15rem;margin-bottom:6px;}
.port-body p{color:var(--cream-text);opacity:0.7;font-size:0.88rem;}
.demo-badge{
  position:absolute;
  top:14px;right:14px;
  font-family:var(--mono);
  font-size:0.62rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  background:var(--brass);
  color:var(--ink);
  padding:4px 9px;
  z-index:3;
}

/* ---------- Notre approche ---------- */
.approach-steps{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
}
.approach-step{
  background:var(--paper);
  border:1px solid var(--line);
  padding:36px 32px;
  position:relative;
}
.approach-step .step-num{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--brass);
  display:block;
  margin-bottom:16px;
}
.approach-step h3{
  font-size:1.25rem;
  margin-bottom:12px;
}
.approach-step p{
  font-size:0.94rem;
  color:var(--slate);
  line-height:1.7;
}

/* ---------- Why choose us cards ---------- */
.choose-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.choose-card{
  background:var(--paper);
  padding:36px 30px;
}
.choose-card .check{
  width:30px;height:30px;
  border:1px solid var(--brass);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--brass);
  margin-bottom:20px;
  font-size:0.9rem;
}
.choose-card h3{font-size:1.05rem;margin-bottom:8px;}
.choose-card p{font-size:0.9rem;}

/* ---------- Contact ---------- */
.contact-section{background:var(--ink);color:var(--cream-text);}
.contact-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:70px;
  align-items:start;
}
.contact-info h2{color:#fff;margin-bottom:18px;}
.contact-info .lede{margin-bottom:44px;}
.contact-detail{margin-bottom:26px;}
.contact-detail .label{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--cyan);
  display:block;
  margin-bottom:6px;
}
.contact-detail a, .contact-detail span{
  font-family:var(--serif-display);
  font-size:1.2rem;
  color:#fff;
}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-grid .full{grid-column:1/-1;}
.contact-form{margin-top:32px;}
.field label{
  display:block;
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--cream-text);
  opacity:0.7;
  margin-bottom:8px;
}
.field input, .field textarea{
  width:100%;
  background:transparent;
  border:none;
  border-bottom:1px solid var(--line-dark);
  color:#fff;
  padding:10px 2px;
  font-size:0.98rem;
  transition:border-color .25s ease;
}
.field input:focus, .field textarea:focus{
  outline:none;
  border-bottom-color:var(--brass);
}
.field textarea{resize:vertical;min-height:100px;}
.contact-form .btn{margin-top:32px;}
.form-note{
  font-family:var(--mono);
  font-size:0.72rem;
  color:var(--cream-text);
  opacity:0.5;
  margin-top:14px;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-2);
  color:var(--cream-text);
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand .logo-word{color:#fff;}
.footer-brand p{
  margin-top:18px;
  opacity:0.65;
  font-size:0.9rem;
  max-width:32ch;
}
.footer-col h4{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:18px;
}
.footer-col a{
  display:block;
  font-size:0.92rem;
  opacity:0.75;
  margin-bottom:12px;
  transition:opacity .2s ease;
}
.footer-col a:hover{opacity:1;color:var(--brass);}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding-block:22px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-family:var(--mono);
  font-size:0.72rem;
  opacity:0.55;
}
.footer-bottom a:hover{opacity:1;}

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

/* ---------- Legal pages ---------- */
.legal-page{padding-top:160px;padding-bottom:100px;}
.legal-page .container{max-width:820px;}
.legal-page h1{margin-bottom:8px;}
.legal-page .updated{
  font-family:var(--mono);
  font-size:0.78rem;
  color:var(--cyan);
  margin-bottom:48px;
  display:block;
}
.legal-page h2{
  font-size:1.3rem;
  margin-top:44px;
  margin-bottom:14px;
}
.legal-page p, .legal-page li{
  color:var(--slate);
  margin-bottom:14px;
  font-size:0.98rem;
}
.legal-page li{padding-left:18px;position:relative;}
.legal-page li::before{content:"—";position:absolute;left:0;color:var(--cyan);}
.fill{
  background:rgba(255,255,255,0.08);
  padding:1px 6px;
  font-family:var(--mono);
  font-size:0.9em;
  color:var(--brass);
}
.legal-page .fill{
  background:none;
  color:inherit;
  font-family:inherit;
  font-size:inherit;
  padding:0;
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:0.78rem;
  text-transform:uppercase;
  letter-spacing:0.05em;
  color:var(--cyan);
  margin-bottom:12px;
}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .services{grid-template-columns:1fr;}
  .audience-grid{grid-template-columns:1fr;}
  .method-track{grid-template-columns:1fr 1fr;row-gap:48px;}
  .method-track::before{display:none;}
  .coord-wrap{grid-template-columns:1fr;}
  .portfolio-grid{grid-template-columns:1fr 1fr;}
  .choose-grid{grid-template-columns:1fr 1fr;}
  .contact-wrap{grid-template-columns:1fr;gap:48px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .nav-desktop, .header-cta .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  section{padding-block:76px;}
  .why-grid{grid-template-columns:1fr;}
  .method-track{grid-template-columns:1fr;}
  .portfolio-grid{grid-template-columns:1fr;}
  .choose-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .hero-meta{gap:26px;}
}