/* ==========================================================================
   FR INFORMATIQUE — Design system
   Concept: "La ligne de signal" — un tracé d'oscilloscope qui traverse tout
   le site. Erratique (panne) -> stable (accompagnement) -> ramifié (création).
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;1,8..60,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* Couleurs — reprises du logo FR Informatique (dégradé indigo -> violet -> cyan) */
  --ink: #14163f;
  --ink-soft: #1e2158;
  --paper: #f5f4fb;
  --paper-dim: #e9e6f5;
  --patina: #058298;
  --patina-bright: #4fd6e6;
  --copper: #6a35c9;
  --copper-bright: #9d6ef0;
  --slate: #6c6f97;
  --line: rgba(20,22,63,0.12);
  --line-on-dark: rgba(245,244,251,0.14);

  /* Typo */
  --f-display: 'Space Grotesk', system-ui, sans-serif;
  --f-body: 'Source Serif 4', Georgia, serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --container: 1180px;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 1.05rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,h2,h3,h4{
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
p{ margin: 0 0 1em; }
a{ color: inherit; }
img{ max-width: 100%; display:block; }
.container{ max-width: var(--container); margin: 0 auto; padding: 0 var(--pad); }

::selection{ background: var(--patina); color: var(--paper); }

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

/* ---------- Eyebrow / labels (mono, technique) ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap: 0.6em;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--patina);
}
.eyebrow::before{
  content:'';
  width: 22px; height: 1px;
  background: var(--patina);
}
section.dark .eyebrow{ color: var(--patina-bright); }

/* ==========================================================================
   HEADER / NAV
   ========================================================================== */
.site-header{
  position: fixed; top: 16px; left: 0; right: 0; margin-inline: auto;
  z-index: 500;
  width: min(92%, 1120px);
  display:flex; align-items:center; justify-content:space-between;
  gap: 1rem;
  padding: .65rem .8rem .65rem 1.3rem;
  border-radius: 999px;
  background: rgba(23,29,27,0.5);
  border: 1px solid rgba(245,243,237,0.1);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 14px 34px -20px rgba(0,0,0,.55);
  transition: background .4s ease, box-shadow .4s ease, top .4s ease, padding .3s ease;
}
.site-header.scrolled{
  top: 10px;
  background: rgba(20,25,23,0.78);
  box-shadow: 0 18px 40px -16px rgba(0,0,0,.6);
}
.brand{
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration:none;
  display:flex; align-items:center; gap:.6rem;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.brand .dot{
  width:8px;height:8px;border-radius:50%;
  background: var(--copper-bright);
  box-shadow: 0 0 0 4px rgba(212,129,63,0.2);
  animation: dot-pulse 2.6s ease-in-out infinite;
}
@keyframes dot-pulse{
  0%,100%{ box-shadow: 0 0 0 4px rgba(212,129,63,0.2); }
  50%{ box-shadow: 0 0 0 7px rgba(212,129,63,0.05); }
}
.brand small{
  display:block; font-family: var(--f-mono); font-weight:400;
  font-size: .62rem; letter-spacing: .1em; color: rgba(245,243,237,0.5); text-transform: uppercase;
}

.nav-links{
  display:flex; align-items:center; gap: 2rem;
  list-style:none; margin:0; padding:0;
  font-family: var(--f-mono); font-size: .8rem; letter-spacing:.03em;
}
.nav-links a{
  text-decoration:none; position:relative; padding: 4px 0;
  color: rgba(245,243,237,0.82);
  transition: color .25s ease;
}
.nav-links a:hover{ color: var(--paper); }
.nav-links a::after{
  content:''; position:absolute; left:0; right:100%; bottom:-2px; height:1.5px;
  background: var(--copper-bright); transition: right .28s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{ right:0; }
.nav-links a.active{ color: var(--copper-bright); }

.nav-links .nav-cta{
  font-family: var(--f-mono); font-size: .8rem;
  background: var(--copper-bright); color: var(--ink);
  padding: .6rem 1.2rem; border-radius: 999px; text-decoration:none;
  display:inline-flex; align-items:center; gap:.5rem; font-weight: 600;
  transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
  box-shadow: 0 6px 18px -8px rgba(212,129,63,0.6);
}
.nav-cta:hover{ background: var(--patina-bright); transform: translateY(-1px); }
.nav-cta::before{ content:'●'; color: var(--ink); font-size:.55rem; opacity:.6; }

.nav-toggle{ display:none; }

@media (max-width: 1080px){
  .nav-links{
    position: fixed; top:-50px; height: calc(100vh + 100px); right: -4vw; left:auto; width: min(78vw, 340px);
    background: var(--ink); color: var(--paper);
    flex-direction: column; align-items: flex-start; justify-content:center;
    gap: 1.8rem; padding: 2rem var(--pad);
    transform: translateX(100%); transition: transform .45s cubic-bezier(.77,0,.18,1);
    font-size: 1rem;
  }
  .nav-links.open{ transform: translateX(0); }
  .nav-links a{ color: var(--paper); }
  .nav-cta{ order:99; }
  .nav-toggle{
    display:flex; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer;
    z-index: 600; padding: 8px;
  }
  .nav-toggle span{ width:22px; height:2px; background: var(--paper); transition: all .3s ease; }
  .nav-toggle.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2){ opacity:0; }
  .nav-toggle.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
}

/* ==========================================================================
   SIGNAL RAIL — l'élément signature.
   Rail fixe à gauche (desktop) qui trace le fil narratif du site.
   ========================================================================== */
.signal-rail{
  position: fixed; left: 0; top: 0; bottom: 0; width: 64px;
  z-index: 400; pointer-events:none;
  display:flex; align-items:center; justify-content:center;
}
.signal-rail svg{ height: 70vh; width: 40px; overflow: visible; }
.signal-rail .track{ fill:none; stroke: var(--line); stroke-width: 1.5; }
.signal-rail .progress{
  fill:none; stroke: var(--copper-bright); stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 1 1; /* set via JS pathLength */
  stroke-dashoffset: 1;
  transition: stroke .4s ease;
}
.signal-rail .node{
  fill: var(--paper); stroke: var(--slate); stroke-width: 1.4;
  transition: fill .4s ease, stroke .4s ease, r .3s ease;
}
.signal-rail .node.active{ fill: var(--copper-bright); stroke: var(--copper-bright); }
.signal-rail .label{
  font-family: var(--f-mono); font-size: 7px; letter-spacing: .04em;
  fill: var(--slate); opacity: .55;
  transition: fill .35s ease, opacity .35s ease;
}
.signal-rail .label.active{ opacity: 1; fill: var(--copper-bright); }

@media (max-width: 1100px){ .signal-rail{ display:none; } }

/* Mobile progress bar substitute */
.progress-top{
  position: fixed; top:0; left:0; height: 2.5px; width:0%;
  background: var(--copper-bright); z-index: 700; transition: width .1s linear;
}
@media (min-width: 1101px){ .progress-top{ display:none; } }

/* ==========================================================================
   SECTIONS — rythme clair/sombre
   ========================================================================== */
section{ position: relative; padding: clamp(4.5rem, 9vw, 8rem) 0; }
section.dark{ background: var(--ink); color: var(--paper); }
section.dark .slate-text{ color: rgba(245,243,237,0.6); }
.slate-text{ color: var(--slate); }

.section-head{ max-width: 640px; margin-bottom: 3rem; }
.section-head h2{ font-size: clamp(2rem, 4vw, 3rem); margin-top:.4rem; }

/* Divider "signal" entre sections : trait qui vibre puis se stabilise */
.divider{ position:relative; height: 46px; overflow:hidden; }
.divider svg{ width:100%; height:100%; display:block; }
.divider path{ stroke: var(--line); fill:none; stroke-width:1.5; }
section.dark + .divider path, .divider.on-dark path{ stroke: var(--line-on-dark); }

/* ==========================================================================
   REVEAL ON SCROLL
   ========================================================================== */
.reveal{ opacity:0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.in{ opacity:1; transform: translateY(0); }
.reveal-left{ opacity:0; transform: translateX(-40px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal-left.in{ opacity:1; transform: translateX(0); }
.reveal-right{ opacity:0; transform: translateX(40px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal-right.in{ opacity:1; transform: translateX(0); }
.reveal-scale{ opacity:0; transform: scale(.94); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal-scale.in{ opacity:1; transform: scale(1); }
.stagger > *{ transition-delay: calc(var(--i, 0) * 90ms); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  min-height: 100svh; display:flex; align-items:center;
  background: var(--ink); color: var(--paper);
  position: relative; overflow:hidden;
  padding-top: 6rem;
}
.hero-noise{
  position:absolute; inset:0; opacity:.5; mix-blend-mode: overlay; pointer-events:none;
  background-image: radial-gradient(circle at 20% 20%, rgba(78,138,122,0.25), transparent 45%),
                     radial-gradient(circle at 85% 75%, rgba(181,101,46,0.22), transparent 50%);
}
.hero-scope{
  position:absolute; right: -6%; top: 50%; transform: translateY(-50%);
  width: min(56vw, 720px); opacity: .9; pointer-events:none;
}
.hero-scope svg{ width:100%; height:auto; position:relative; z-index:1; }
.circuit-glow{ display:none; }
.circuit-pulses circle{ filter: drop-shadow(0 0 4px rgba(107,179,159,.9)); }
.hero-grid{ position:relative; z-index:2; display:grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items:center; }
.hero-content{ max-width: 620px; }
.hero-content h1{
  font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  margin: .5rem 0 1.1rem;
}
.hero-content h1 em{ font-style: normal; color: var(--patina-bright); }
.hero-lede{ font-size: 1.15rem; color: rgba(245,243,237,0.78); max-width: 480px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap: 1rem; margin-top: 2rem; align-items:center; }

.btn{
  font-family: var(--f-mono); font-size: .85rem; letter-spacing:.03em;
  text-decoration:none; display:inline-flex; align-items:center; gap:.6rem;
  padding: .95rem 1.5rem; border-radius: 3px; border: 1px solid transparent;
  transition: transform .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
  cursor:pointer;
}
.btn-primary{ background: var(--copper-bright); color: var(--ink); font-weight:600; }
.btn-primary:hover{ transform: translateY(-2px); background: var(--patina-bright); }
.btn-ghost{ border-color: var(--line-on-dark); color: var(--paper); }
.btn-ghost:hover{ border-color: var(--paper); transform: translateY(-2px); }

.hero-meta{
  display:flex; gap: 2.2rem; margin-top: 3.2rem; flex-wrap:wrap;
  font-family: var(--f-mono); font-size: .78rem; color: rgba(245,243,237,0.55);
}
.hero-meta strong{ display:block; font-family: var(--f-display); font-size: 1.5rem; color: var(--paper); font-weight:600; }

@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-scope{ display:none; }
}

/* ==========================================================================
   ACTES (bandeau numéroté d'introduction — homepage)
   ========================================================================== */
.actes{ background: var(--paper); }
.actes-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border:1px solid var(--line); }
.acte-card{
  background: var(--paper); padding: 2.4rem 2rem; position:relative;
  transition: background .35s ease;
}
.acte-card:hover{ background: var(--paper-dim); }
.acte-num{ font-family: var(--f-mono); color: var(--copper); font-size:.8rem; }
.acte-card h3{ font-size: 1.35rem; margin: .8rem 0 .6rem; }
.acte-card a.card-link{
  position:absolute; inset:0; text-decoration:none;
}
.acte-arrow{ font-family: var(--f-mono); font-size:.8rem; color: var(--patina); display:inline-flex; align-items:center; gap:.4rem; margin-top: 1rem; }
@media (max-width: 820px){ .actes-grid{ grid-template-columns: 1fr; } }

/* ==========================================================================
   DIAGNOSTIC SCAN — cas de pannes, auto-diagnostic au scroll
   ========================================================================== */
.diag-scanbar{
  height:2px; margin: 0 0 2.8rem; background: var(--line-on-dark);
  background-image: linear-gradient(90deg, transparent, var(--patina-bright), transparent);
  background-size: 22% 100%; background-repeat: no-repeat; background-position: -30% 0;
}
.diag-scanbar.in{ animation: diag-sweep 1.5s cubic-bezier(.2,.7,.2,1) .15s forwards; }
@keyframes diag-sweep{ to{ background-position: 130% 0; } }

.diag-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr)); gap: 1.5rem; }
.diag-card{
  position:relative; background: var(--ink-soft); border:1px solid var(--line-on-dark); border-radius: 8px;
  padding: 1.7rem 1.6rem 1.9rem;
}
.diag-card:hover{ transform: translateY(-4px); box-shadow: 0 18px 40px -20px rgba(0,0,0,.4); border-color: var(--patina); }
.diag-card:nth-child(2){ transition-delay: 80ms; }
.diag-card:nth-child(3){ transition-delay: 160ms; }
.diag-card:nth-child(4){ transition-delay: 240ms; }
.diag-card:nth-child(5){ transition-delay: 320ms; }
.diag-card:nth-child(6){ transition-delay: 400ms; }

.diag-corner{ position:absolute; width:14px; height:14px; border-color: var(--patina); opacity:.65; transition: border-color .4s ease; }
.diag-corner.tl{ top:9px; left:9px; border-top:1.5px solid; border-left:1.5px solid; }
.diag-corner.br{ bottom:9px; right:9px; border-bottom:1.5px solid; border-right:1.5px solid; }
.diag-card.solved .diag-corner{ border-color: var(--patina-bright); opacity:.9; }

.diag-status{ display:flex; align-items:center; gap:.55rem; margin-bottom: 1.1rem; }
.diag-dot{ position:relative; width:7px; height:7px; border-radius:50%; background: var(--copper-bright); flex-shrink:0; }
.diag-dot::after{
  content:''; position:absolute; inset:-5px; border-radius:50%; border:1px solid var(--copper-bright);
  opacity:.6; animation: diag-ping 1.6s ease-out infinite;
}
.diag-card.solved .diag-dot{ background: var(--patina-bright); box-shadow: 0 0 8px var(--patina-bright); }
.diag-card.solved .diag-dot::after{ animation:none; opacity:0; }
@keyframes diag-ping{ 0%{ transform:scale(.6); opacity:.8; } 100%{ transform:scale(2.2); opacity:0; } }
.diag-readout{ font-family: var(--f-mono); font-size:.66rem; letter-spacing:.08em; text-transform:uppercase; color: var(--copper-bright); transition: color .4s ease; }
.diag-readout::before{ content:'Détection…'; }
.diag-card.solved .diag-readout{ color: var(--patina-bright); }
.diag-card.solved .diag-readout::before{ content:'Résolu ✓'; }

.diag-icon{ width:34px; height:34px; margin-bottom: .9rem; display:block; }
.diag-card .tag{ font-family: var(--f-mono); font-size:.7rem; color: var(--patina); text-transform:uppercase; letter-spacing:.08em; }
.diag-card h4{ font-size: 1.1rem; margin: .5rem 0 0; min-height: 1.4em; }

@media (prefers-reduced-motion: reduce){
  .diag-dot::after{ animation:none; }
  .diag-scanbar.in span{ animation:none; opacity:0; }
}

/* ==========================================================================
   FEATURE ROWS (alternées gauche/droite)
   ========================================================================== */
.feature-row{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,5rem); align-items:center; }
.feature-row + .feature-row{ margin-top: clamp(3.5rem,8vw,6rem); }
.feature-row.flip .f-visual{ order:2; }
.f-visual{ position:relative; }
.f-visual svg, .f-visual img{ width:100%; height:auto; display:block; border-radius: 10px; }
section:not(.dark) .f-visual img{ border: 1px solid var(--line); box-shadow: 0 20px 50px -30px rgba(20,22,63,.35); }
.f-eyebrow{ margin-bottom: .8rem; }
.feature-row h3{ font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
.f-list{ list-style:none; padding:0; margin: 1.4rem 0 0; display:grid; gap:.7rem; }
.f-list li{ display:flex; gap:.7rem; align-items:flex-start; font-size:.98rem; }
.f-list li::before{ content:'—'; color: var(--copper); font-family: var(--f-mono); flex-shrink:0; }
@media (max-width: 820px){
  .feature-row, .feature-row.flip{ grid-template-columns: 1fr; }
  .feature-row.flip .f-visual{ order:0; }
}

/* ==========================================================================
   CARDS GRID génériques (services / offres)
   ========================================================================== */
.cards-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 1.5rem; }
.card{
  border: 1px solid var(--line); border-radius: 6px; padding: 2rem;
  background: var(--paper); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
section.dark .card{ border-color: var(--line-on-dark); background: var(--ink-soft); }
.card:hover{ transform: translateY(-4px); box-shadow: 0 16px 34px -22px rgba(0,0,0,.4); border-color: var(--patina); }
.card .num{ font-family: var(--f-mono); font-size: .78rem; color: var(--copper); }
.card h4{ font-size: 1.2rem; margin: .7rem 0 .5rem; }
.card p{ font-size: .95rem; color: var(--slate); margin:0; }

/* ==========================================================================
   TIMELINE (process / étapes) — vertical, connecteur animé
   ========================================================================== */
.timeline{ position:relative; padding-left: 2.6rem; }
.timeline::before{
  content:''; position:absolute; left: 8px; top:6px; bottom:6px; width:1.5px;
  background: linear-gradient(var(--patina), var(--copper));
}
.tl-step{ position:relative; padding-bottom: 2.6rem; }
.tl-step:last-child{ padding-bottom:0; }
.tl-step::before{
  content:''; position:absolute; left: -2.6rem; top: 3px; width: 17px; height:17px; border-radius:50%;
  background: var(--paper); border: 2px solid var(--patina);
}
section.dark .tl-step::before{ background: var(--ink); }
.tl-step .tl-num{ font-family: var(--f-mono); font-size:.75rem; color: var(--patina); }
.tl-step h4{ margin: .35rem 0 .4rem; font-size: 1.15rem; }
.tl-step p{ color: var(--slate); margin:0; max-width: 520px; }

/* ==========================================================================
   TÉMOIGNAGE / RÉALISATIONS
   ========================================================================== */
.realisations{ display:grid; grid-template-columns: repeat(2,1fr); gap: 1.75rem; }
.real-card{
  position:relative; border-radius: 8px; overflow:hidden; aspect-ratio: 4/3;
  background: var(--ink); text-decoration:none; color: var(--paper);
  display:flex; flex-direction:column; justify-content:flex-end; padding: 1.6rem;
}
.real-card .rc-bg{
  position:absolute; inset:0; opacity:.9; background-size:cover; background-position:center;
  filter: saturate(.85) brightness(.75) contrast(1.05);
  transition: transform .6s cubic-bezier(.2,.7,.2,1);
}
.real-card:hover .rc-bg{ transform: scale(1.06); }
.real-card::after{ content:''; position:absolute; inset:0; background: linear-gradient(0deg, rgba(20,24,22,.92), rgba(20,24,22,.15) 55%); }
.real-card .rc-content{ position:relative; z-index:2; }
.real-card .rc-tag{ font-family: var(--f-mono); font-size:.68rem; letter-spacing:.08em; color: var(--patina-bright); text-transform:uppercase; }
.real-card h4{ font-size:1.3rem; margin:.5rem 0 .3rem; }
.real-card p{ font-size:.88rem; color: rgba(245,243,237,.75); margin:0; }
@media (max-width: 700px){ .realisations{ grid-template-columns: 1fr; } }

/* ==========================================================================
   PROFIL (photo réelle conservée)
   ========================================================================== */
.profile-block{ display:grid; grid-template-columns: 340px 1fr; gap: 3.5rem; align-items:center; }
.profile-photo{ position:relative; }
.profile-photo img{
  width:100%; aspect-ratio: 3/4; object-fit:cover; border-radius: 8px;
  filter: grayscale(.15) contrast(1.05);
}
.profile-photo::before{
  content:''; position:absolute; top: 14px; left:14px; right:-14px; bottom:-14px;
  border: 1.5px solid var(--patina); border-radius: 8px; z-index:-1;
}
.profile-tag{
  position:absolute; bottom: -14px; left: -14px; background: var(--copper-bright); color: var(--ink);
  font-family: var(--f-mono); font-size:.72rem; padding: .5rem .8rem; border-radius: 4px; font-weight:600;
}
@media (max-width: 820px){ .profile-block{ grid-template-columns: 1fr; } .profile-photo{ max-width:280px; margin:0 auto 1rem; } }

/* ==========================================================================
   CTA BAND
   ========================================================================== */
.cta-band{
  background: var(--ink); color: var(--paper); border-radius: 10px;
  padding: clamp(2.5rem,6vw,4rem); text-align:center; position:relative; overflow:hidden;
}
.cta-band h2{ font-size: clamp(1.7rem,3.6vw,2.6rem); max-width:700px; margin: .6rem auto 1rem; }
.cta-band .btn-row{ display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; margin-top:1.6rem; }
.cta-band .cta-line{ position:absolute; inset:0; opacity:.25; pointer-events:none; }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid{ display:grid; grid-template-columns: 1fr 1.1fr; gap: 3.5rem; }
.contact-grid > *{ min-width: 0; }
@media (max-width: 820px){ .contact-grid{ grid-template-columns: 1fr; gap: 2.5rem; } }
.contact-item{ display:flex; gap:1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
section.dark .contact-item{ border-color: var(--line-on-dark); }
.contact-item .ci-label{ font-family: var(--f-mono); font-size:.72rem; color: var(--slate); text-transform:uppercase; letter-spacing:.06em; width: 110px; flex-shrink:0; padding-top:.2rem; }
.contact-item a, .contact-item span{ text-decoration:none; font-size: 1.05rem; overflow-wrap: anywhere; }
.contact-item a:hover{ color: var(--patina); }

.form-field{ margin-bottom: 1.1rem; }
.form-field label{ display:block; font-family: var(--f-mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color: var(--slate); margin-bottom:.4rem; }
.form-field input, .form-field textarea{
  width:100%; background: transparent; border: none; border-bottom: 1.5px solid var(--line);
  padding: .6rem 0; font-family: var(--f-body); font-size: 1rem; color: var(--ink); resize: vertical;
}
section.dark .form-field input, section.dark .form-field textarea{ color: var(--paper); border-color: var(--line-on-dark); }
.form-field input:focus, .form-field textarea:focus{ outline:none; border-color: var(--copper-bright); }
.form-note{ font-size: .8rem; color: var(--slate); margin-top: 1rem; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{ background: var(--ink); color: rgba(245,243,237,.7); padding: 3.5rem 0 2rem; font-size:.9rem; overflow-wrap: anywhere; }
.footer-grid{ display:grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--line-on-dark); }
.footer-grid h5{ font-family: var(--f-mono); color: var(--paper); font-size:.75rem; text-transform:uppercase; letter-spacing:.08em; margin-bottom: 1rem; }
.footer-grid ul{ list-style:none; margin:0; padding:0; display:grid; gap:.6rem; }
.footer-grid a{ text-decoration:none; color: inherit; }
.footer-grid a:hover{ color: var(--patina-bright); }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap: 1rem; padding-top: 1.6rem; font-size: .78rem; font-family: var(--f-mono); color: rgba(245,243,237,.45); }
.footer-legal-links a{ color: inherit; text-decoration:none; }
.footer-legal-links a:hover{ color: var(--patina-bright); }

.email-toast{
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: var(--paper); font-family: var(--f-mono); font-size: .82rem;
  padding: .7rem 1.2rem; border-radius: 8px; box-shadow: 0 12px 30px -10px rgba(0,0,0,.4);
  opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
  z-index: 5000; max-width: min(90vw, 380px); text-align:center;
}
.email-toast.show{ opacity: 1; transform: translateX(-50%) translateY(0); }
@media (max-width: 760px){ .footer-grid{ grid-template-columns: 1fr; } }

/* ==========================================================================
   PAGES LÉGALES (mentions légales, confidentialité)
   ========================================================================== */
.legal-content{ max-width: 760px; padding-top: clamp(3rem,6vw,4.5rem); padding-bottom: clamp(3rem,6vw,4.5rem); }
.legal-content h2{ font-size: 1.35rem; margin: 2.4rem 0 .9rem; }
.legal-content h2:first-child{ margin-top:0; }
.legal-content p{ color: var(--ink); }
.legal-content a{ color: var(--patina); text-decoration: underline; text-underline-offset: 2px; }
.legal-content a:hover{ color: var(--copper); }
.legal-list{ list-style:none; padding:0; margin: 0 0 1.2rem; display:grid; gap:.5rem; }
.legal-list li{ padding-left: 1.2rem; position:relative; }
.legal-list li::before{ content:'—'; position:absolute; left:0; color: var(--patina); font-family: var(--f-mono); }

/* ==========================================================================
   PAGE HEADER (sous-pages)
   ========================================================================== */
.page-hero{
  padding: clamp(8rem,14vw,10rem) 0 clamp(3rem,6vw,4.5rem);
  background: var(--ink); color: var(--paper); position:relative; overflow:hidden;
}
.page-hero h1{ font-size: clamp(2.2rem, 5vw, 3.6rem); max-width: 780px; }
.page-hero .lede{ max-width: 560px; color: rgba(245,243,237,.75); font-size: 1.1rem; }
.breadcrumb{ font-family: var(--f-mono); font-size:.75rem; color: var(--slate); margin-bottom: 1.2rem; display:flex; gap:.5rem; align-items:center; }
.breadcrumb a{ text-decoration:none; color: var(--patina-bright); }

/* ==========================================================================
   EFFETS DE SCROLL — passe 2 : plus de dynamisme, toujours épuré
   ========================================================================== */

/* Titres qui se révèlent mot par mot */
.word-mask{ display:inline-block; overflow:hidden; vertical-align:top; padding-bottom:.08em; margin-bottom:-.08em; }
.word{ display:inline-block; transform: translateY(112%); transition: transform .7s cubic-bezier(.2,.8,.15,1); will-change: transform; }
.split.in .word{ transform: translateY(0); }

/* Halo qui suit le curseur dans les sections sombres */
section.dark, .site-footer{ position: relative; isolation:isolate; }
section.dark::before, .site-footer::before{
  content:''; position:absolute; inset:0; z-index:0; pointer-events:none;
  background: radial-gradient(480px circle at var(--mx,50%) var(--my,-20%), rgba(78,138,122,0.16), transparent 62%);
  transition: background .15s ease-out;
}
section.dark > *, .site-footer > *{ position:relative; z-index:1; }

/* Parallax léger sur les visuels */
[data-parallax]{ will-change: transform; }

/* CTA téléphone : pulsation discrète pour attirer l'œil */
.btn-glow{ position:relative; }
.btn-glow::after{
  content:''; position:absolute; inset:-3px; border-radius: 5px;
  border: 1.5px solid var(--copper-bright); opacity:.55;
  animation: pulse-ring 2.2s ease-out infinite;
}
@keyframes pulse-ring{
  0%{ transform: scale(1); opacity:.55; }
  70%{ transform: scale(1.14); opacity:0; }
  100%{ opacity:0; }
}
@media (prefers-reduced-motion: reduce){ .btn-glow::after{ animation:none; opacity:0; } }

/* Compteurs */
.count{ font-variant-numeric: tabular-nums; }

/* Image / visuel qui zoome légèrement en entrant dans le cadre */
.zoom-in{ overflow:hidden; }
.zoom-in svg, .zoom-in img{ transition: transform 1.1s cubic-bezier(.2,.8,.2,1); transform: scale(1.08); }
.zoom-in.in svg, .zoom-in.in img{ transform: scale(1); }

/* Section head : légère translation d'ensemble pour donner du rythme vertical */
.section-head{ transition: transform .2s ease; }

/* Boutons magnétiques : légère attraction vers le curseur */
.magnetic{ display:inline-flex; transition: transform .25s cubic-bezier(.2,.8,.2,1); }
.magnetic-link{ display:inline-block; transition: transform .22s cubic-bezier(.2,.8,.2,1); }

/* Texte "décodé" au survol — clin d'œil au thème du signal */
.decode{ font-variant-numeric: tabular-nums; }

/* Ligne qui s'écrit toute seule */
.typewriter{ display:inline-flex; align-items:center; min-height: 1.2em; }
.tw-cursor{
  display:inline-block; width:2px; height: .95em; background: currentColor;
  margin-left: 2px; vertical-align: -0.15em;
  animation: tw-blink 0.9s steps(1) infinite;
}
.tw-cursor.fade{ animation:none; opacity:0; transition: opacity .5s ease; }
@keyframes tw-blink{ 50%{ opacity:0; } }
@media (prefers-reduced-motion: reduce){ .tw-cursor{ display:none; } }

/* ==========================================================================
   1. INTRO "DÉCODAGE" PLEIN ÉCRAN
   ========================================================================== */
.intro-decode{
  position: fixed; inset:0; z-index: 9999;
  background: var(--ink);
  display:flex; align-items:center; justify-content:center;
  transition: opacity .4s ease, visibility .4s ease;
}
.intro-decode.hide{ opacity:0; visibility:hidden; }
.intro-text{
  font-family: var(--f-mono); font-weight:500;
  font-size: clamp(1.3rem, 5.2vw, 2.6rem);
  letter-spacing: .28em; text-transform: uppercase;
  color: var(--copper-bright);
}
@media (prefers-reduced-motion: reduce){ .intro-decode{ display:none; } }

/* ==========================================================================
   6. CARTES EN RELIEF (tilt 3D)
   ========================================================================== */
.cards-grid, .actes-grid, .realisations, .diag-grid{ perspective: 900px; }
.card, .acte-card, .real-card, .diag-card{ transition: transform .12s ease-out, box-shadow .3s ease, border-color .3s ease; }

/* ==========================================================================
   7. BARRE DE DÉFILEMENT PERSONNALISÉE
   ========================================================================== */
html{ scrollbar-color: var(--copper-bright) var(--paper-dim); scrollbar-width: thin; }
::-webkit-scrollbar{ width: 10px; }
::-webkit-scrollbar-track{ background: var(--paper-dim); }
::-webkit-scrollbar-thumb{
  background: linear-gradient(var(--copper-bright), var(--patina));
  border-radius: 6px; border: 2px solid var(--paper-dim);
}
::-webkit-scrollbar-thumb:hover{ background: linear-gradient(var(--patina-bright), var(--copper-bright)); }


/* ==========================================================================
   5. CURSEUR AVANT / APRÈS
   ========================================================================== */
.ba-slider{
  --pos: 50%;
  position: relative; aspect-ratio: 480/320; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--line-on-dark); cursor: ew-resize; user-select:none; touch-action: pan-y;
}
.ba-layer{ position:absolute; inset:0; }
.ba-layer svg, .ba-layer img{ width:100%; height:100%; display:block; object-fit: cover; object-position: center; }
.ba-after{ z-index:1; }
.ba-before{ z-index:2; clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.ba-handle{
  position:absolute; top:0; bottom:0; left: var(--pos); width:2px;
  background: var(--copper-bright); z-index:3; transform: translateX(-1px);
  box-shadow: 0 0 12px rgba(212,129,63,.6);
}
.ba-handle::after{
  content:'⟷'; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:36px; height:36px; border-radius:50%; background: var(--copper-bright); color: var(--ink);
  display:flex; align-items:center; justify-content:center; font-size:15px; font-weight:700;
  box-shadow: 0 8px 20px -8px rgba(0,0,0,.6);
}
.ba-label{
  position:absolute; top: 12px; z-index:4; font-family: var(--f-mono); font-size:.65rem;
  letter-spacing:.08em; text-transform:uppercase; color: rgba(245,243,237,.7);
  background: rgba(20,25,23,.55); padding: .35rem .6rem; border-radius: 999px;
  backdrop-filter: blur(6px);
}
.ba-label.before{ left:12px; }
.ba-label.after{ right:12px; }

/* Utility */
.mt-0{ margin-top:0 !important; }
.center{ text-align:center; margin-left:auto; margin-right:auto; }
.small-caps{ font-family: var(--f-mono); font-size: .78rem; letter-spacing:.08em; text-transform:uppercase; color: var(--slate); }