/* ============================================================
   BuMIA — Design tokens
   Navy/teal identity extended from existing brand kit (logo,
   plaquette, carte de visite). Newsreader (serif, editorial,
   the web-native evolution of the brand's Georgia) for display
   and italic accents; IBM Plex Sans for UI/body; IBM Plex Mono
   for small precise labels (echoes "retour mesuré").
   ============================================================ */
:root{
  --navy:        #0F2540;
  --navy-deep:   #081627;
  --navy-mid:    #16324F;
  --line-on-navy:#1B3A5C;
  --teal:        #0E8A8A;
  --teal-ink:    #0C7A7A;
  --teal-bright: #16A3A3;
  --teal-soft:   #BFE3E1;
  --paper:       #F6F4EE;
  --paper-raise: #FFFFFF;
  --ink:         #10202F;
  --slate:       #5B6B78;
  --slate-light: rgba(246,244,238,0.72);

  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --wrap: 1120px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }
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{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-size:16px;
  line-height:1.6;
}

img,svg{ display:block; max-width:100%; }

.wrap{
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 28px;
}

h1,h2,h3{
  font-family:var(--serif);
  font-weight:500;
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
  text-wrap:balance;
}
h2{ font-size:clamp(1.7rem, 3.2vw, 2.5rem); max-width:18ch; }
h3{ font-size:1.2rem; font-weight:600; }
p{ margin:0 0 1em; }
em{ font-style:italic; color:var(--teal-bright); }

a{ color:inherit; }

::selection{ background:var(--teal-ink); color:#fff; }

html{
  scrollbar-color:var(--teal-ink) var(--paper);
}
::-webkit-scrollbar{ width:11px; height:11px; }
::-webkit-scrollbar-track{ background:var(--paper); }
::-webkit-scrollbar-thumb{ background:var(--teal-ink); border-radius:6px; border:2.5px solid var(--paper); }
::-webkit-scrollbar-thumb:hover{ background:#0A6868; }

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--teal-ink); color:#fff;
  padding:.75em 1.2em; z-index:999; border-radius:0 0 6px 0;
}
.skip-link:focus{ left:0; }

:focus-visible{ outline:2px solid var(--teal-ink); outline-offset:3px; border-radius:1px; }

.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--teal-ink);
  margin:0 0 1em;
  font-weight:500;
}
.eyebrow-light{ color:var(--teal-soft); }
.ink-white{ color:#fff; }

.lede{ font-size:1.15rem; max-width:56ch; color:var(--slate); }

/* ---------- reveal-on-scroll ---------- */
.reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.in-view{ opacity:1; transform:none; }

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  padding:18px 0;
  transition:background .3s var(--ease), padding .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.scrolled{
  background:rgba(15,37,64,0.92);
  backdrop-filter:blur(10px);
  padding:12px 0;
  box-shadow:0 8px 30px rgba(0,0,0,.18);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; }

.logo{ display:flex; align-items:center; gap:10px; text-decoration:none; }
.logo-mark{
  width:26px; height:26px; border-radius:50%;
  border:2.4px solid var(--teal-bright);
  position:relative; flex:none;
}
.logo-mark::after{
  content:""; position:absolute; inset:6px; border-radius:50%; background:var(--teal-bright);
}
.logo-word{ font-family:var(--serif); font-weight:600; font-size:1.15rem; color:#fff; }
.logo-word em{ color:var(--teal-bright); font-style:normal; }

.main-nav{ display:flex; align-items:center; gap:30px; }
.main-nav a{
  color:var(--slate-light); text-decoration:none; font-size:.92rem; font-weight:500;
  position:relative; padding:4px 0;
}
.main-nav a:not(.nav-cta)::after{
  content:""; position:absolute; left:0; right:100%; bottom:-2px; height:1px; background:var(--teal-bright);
  transition:right .3s var(--ease);
}
.main-nav a:not(.nav-cta):hover::after{ right:0; }
.main-nav a:not(.nav-cta):hover{ color:#fff; }
.nav-cta{
  background:var(--teal-ink); color:#fff !important; padding:9px 18px !important; border-radius:2px;
  transition:background .25s var(--ease), transform .25s var(--ease);
}
.nav-cta:hover{ background:#0A6868; transform:translateY(-1px); }

.nav-toggle{
  display:none; flex-direction:column; align-items:center; justify-content:center; gap:5px;
  background:none; border:0; cursor:pointer; width:44px; height:44px; padding:0;
}
.nav-toggle span{ width:22px; height:2px; background:#fff; display:block; transition:transform .25s var(--ease), opacity .25s var(--ease); }

.nav-backdrop{
  display:none; position:fixed; inset:0; background:rgba(8,22,39,.6); backdrop-filter:blur(2px);
  opacity:0; pointer-events:none; transition:opacity .3s var(--ease); z-index:90;
}
.nav-backdrop.open{ opacity:1; pointer-events:auto; }

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex; align-items:center;
  background:radial-gradient(ellipse at 78% 30%, var(--navy-mid) 0%, var(--navy) 45%, var(--navy-deep) 100%);
  overflow:hidden;
  padding-top:90px;
}
.hero-canvas{ position:absolute; inset:0; width:100%; height:100%; opacity:.85; }
.hero-inner{ position:relative; z-index:2; }

.eyebrow-light.reveal{ transition-delay:.05s; }
.hero-title{
  color:#fff; font-size:clamp(2.2rem, 5.4vw, 4rem); max-width:20ch; margin-bottom:.45em;
}
.hero-title em{ font-style:italic; }
.hero-sub{
  color:var(--slate-light); font-size:1.15rem; max-width:46ch; margin-bottom:2em;
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:16px; margin-bottom:1.6em; }
.hero-fine{ font-family:var(--mono); font-size:.78rem; letter-spacing:.03em; color:var(--teal-soft); opacity:.85; margin:0; }

.hero-scroll-cue{
  position:absolute; left:50%; bottom:34px; transform:translateX(-50%);
  width:1px; height:52px; background:linear-gradient(var(--teal-bright), transparent); z-index:2;
}
.hero-scroll-cue span{
  position:absolute; left:-2.5px; top:0; width:6px; height:6px; border-radius:50%; background:var(--teal-bright);
  animation:cue 2.2s var(--ease) infinite;
}
@keyframes cue{ 0%{ top:0; opacity:1;} 90%{ opacity:0; } 100%{ top:46px; opacity:0; } }
@media (prefers-reduced-motion: reduce){ .hero-scroll-cue span{ animation:none; top:20px; } }

/* ============================================================
   Buttons
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--sans); font-weight:600; font-size:.95rem;
  padding:14px 26px; border-radius:2px; text-decoration:none; border:1.5px solid transparent;
  cursor:pointer; transition:transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.btn-primary{ background:var(--teal-ink); color:#fff; }
.btn-primary:hover{ background:#0A6868; transform:translateY(-2px); box-shadow:0 12px 26px rgba(12,122,122,.35); }
.btn-ghost{ border-color:rgba(255,255,255,.4); color:#fff; }
.btn-ghost:hover{ border-color:#fff; background:rgba(255,255,255,.08); }
.btn-dark{ background:var(--navy); color:#fff; }
.btn-dark:hover{ background:var(--navy-deep); transform:translateY(-2px); }
.btn-block{ width:100%; margin-top:6px; }

/* ============================================================
   Sections
   ============================================================ */
.section{ padding:110px 0; }
.section-paper{ background:var(--paper); }
.section-navy{ background:var(--navy); }
.section-teal{ background:linear-gradient(120deg, var(--teal) 0%, #0B6E6E 100%); }

/* ---------- Constat / jargon translator ---------- */
.translator{ margin:2.4em 0 1.6em; }
.translator-label{
  font-family:var(--mono); font-size:.78rem; letter-spacing:.04em; color:var(--slate); margin-bottom:1em;
}
.translator-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:36px 28px; }
.translator-item{
  position:relative; padding-left:20px; border-left:2px solid rgba(15,37,64,.12);
  transition:border-color .3s var(--ease);
}
.translator-item:hover{ border-color:var(--teal-ink); }
.translator-grid .translator-item:nth-child(1){ transition-delay:0s; }
.translator-grid .translator-item:nth-child(2){ transition-delay:.08s; }
.translator-grid .translator-item:nth-child(3){ transition-delay:.16s; }
.jargon-line{
  font-family:var(--serif); font-style:italic; font-size:.98rem; line-height:1.5;
  color:var(--slate); opacity:.7; text-decoration:line-through; text-decoration-color:rgba(91,107,120,.5);
  margin:0 0 .6em;
}
.translation-line{
  font-family:var(--sans); font-size:1.15rem; font-weight:600; line-height:1.4; color:var(--navy); margin:0;
}
.translation-tag{
  display:block; font-family:var(--mono); font-weight:500; font-size:.68rem; letter-spacing:.12em;
  text-transform:uppercase; color:var(--teal-ink); margin-bottom:.45em;
}

.constat-close{
  font-family:var(--serif); font-style:italic; font-size:1.35rem; color:var(--navy);
  margin-top:1.4em; max-width:24ch;
}

/* ---------- Recadrage checklist ---------- */
.checklist{ list-style:none; margin:1.8em 0; padding:0; max-width:52ch; }
.checklist li{
  display:flex; gap:14px; padding:14px 0; border-top:1px solid var(--line-on-navy);
  color:var(--slate-light); font-size:1.05rem;
}
.checklist li:last-child{ border-bottom:1px solid var(--line-on-navy); }
.checklist li:nth-child(1){ transition-delay:0s; }
.checklist li:nth-child(2){ transition-delay:.07s; }
.checklist li:nth-child(3){ transition-delay:.14s; }
.checklist li:nth-child(4){ transition-delay:.21s; }
.check{
  flex:none; width:24px; height:24px; border-radius:50%; background:rgba(14,138,138,.18);
  color:var(--teal-bright); display:flex; align-items:center; justify-content:center; font-size:.75rem; margin-top:2px;
}
.recadrage-close{ font-family:var(--serif); font-style:italic; color:var(--teal-soft); font-size:1.2rem; max-width:36ch; }

/* ---------- Feature cards ---------- */
.cards-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; margin-top:2.4em; }
.feature-card{
  background:var(--paper-raise); border:1px solid rgba(15,37,64,.1); border-radius:6px; padding:32px 26px;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.feature-card:hover{ transform:translateY(-4px); box-shadow:0 16px 34px rgba(15,37,64,.1); }
.feature-icon{ width:40px; height:40px; color:var(--teal); margin-bottom:1.1em; transition:transform .3s var(--ease); }
.feature-card:hover .feature-icon{ transform:scale(1.08) rotate(-4deg); }
.feature-card h3{ margin-bottom:.4em; color:var(--navy); }
.feature-card p{ color:var(--slate); font-size:.96rem; margin:0; }
.cards-3 .feature-card:nth-child(1){ transition-delay:0s; }
.cards-3 .feature-card:nth-child(2){ transition-delay:.08s; }
.cards-3 .feature-card:nth-child(3){ transition-delay:.16s; }

/* ---------- Timeline / method ---------- */
.timeline{ position:relative; margin-top:3em; }
.timeline-line{ position:absolute; left:23px; top:4px; bottom:4px; width:2px; background:var(--line-on-navy); overflow:hidden; }
.timeline-line-fill{ position:absolute; left:0; top:0; width:100%; height:0%; background:var(--teal-bright); transition:height .1s linear; }
.timeline-list{ list-style:none; margin:0; padding:0; position:relative; z-index:1; }
.timeline-list li{ display:flex; gap:28px; padding:0 0 3em; position:relative; }
.timeline-list li:last-child{ padding-bottom:0; }
.tl-num{
  flex:none; width:48px; height:48px; border-radius:50%; background:var(--navy);
  border:1.5px solid var(--line-on-navy);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--mono); font-size:.85rem; color:var(--teal-bright); position:relative; z-index:1;
}
.timeline-list h3{ color:#fff; margin-bottom:.3em; }
.timeline-list p{ color:var(--slate-light); margin:0; max-width:48ch; }
.timeline-list li.tl-active .tl-num{ background:var(--teal); border-color:var(--teal-bright); color:#fff; }

/* ---------- Fondateur ---------- */
.fondateur-grid{ display:grid; grid-template-columns:220px 1fr; gap:60px; align-items:start; }
.fondateur-avatar{
  width:200px; height:200px; border-radius:50%;
  position:relative;
}
.fondateur-avatar img{
  display:block; width:100%; height:100%; border-radius:50%;
  object-fit:cover; object-position:50% 15%;
  border:1.5px solid rgba(14,138,138,.4);
}
.fondateur-avatar::before{
  content:""; position:absolute; inset:-14px; border-radius:50%; border:1px solid rgba(14,138,138,.25);
  pointer-events:none;
}
.fondateur-body{ color:var(--slate); max-width:60ch; }
.pull-quote{
  font-family:var(--serif); font-style:italic; font-size:1.3rem; color:var(--navy);
  border-left:2px solid var(--teal); padding-left:20px; margin-top:1.6em;
}

/* ---------- Pricing ---------- */
.pricing-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:2.6em; }
.price-card{
  background:var(--navy-mid); border:1px solid var(--line-on-navy); border-radius:6px; padding:34px 28px;
  display:flex; flex-direction:column; transition:transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.price-card:hover{ transform:translateY(-4px); box-shadow:0 20px 40px rgba(0,0,0,.25); }
.price-card h3{ color:#fff; }
.price-card-highlight{ background:var(--navy); border-color:var(--teal); box-shadow:0 0 0 1px var(--teal), 0 24px 50px rgba(14,138,138,.15); }
.price-card-highlight:hover{ box-shadow:0 0 0 1px var(--teal), 0 28px 56px rgba(14,138,138,.25); }
.pricing-grid .price-card:nth-child(1){ transition-delay:0s; }
.pricing-grid .price-card:nth-child(2){ transition-delay:.08s; }
.pricing-grid .price-card:nth-child(3){ transition-delay:.16s; }
.price-tag{ font-family:var(--mono); font-size:.68rem; letter-spacing:.08em; text-transform:uppercase; color:var(--teal-bright); margin-bottom:1em; }
.price-amount{ font-family:var(--serif); font-size:1.9rem; color:var(--teal-bright); margin-bottom:.5em; }
.price-amount span{ font-family:var(--sans); font-size:.9rem; color:var(--slate-light); }
.price-desc{ color:var(--slate-light); font-size:.95rem; flex:1; }

.roi-note{
  margin-top:2.6em; padding:26px 30px; background:rgba(14,138,138,.08); border:1px solid rgba(14,138,138,.3);
  border-radius:6px; max-width:70ch;
}
.roi-note p{ color:var(--slate-light); margin:0 0 .6em; }
.roi-note p:last-child{ margin:0; }
.roi-caveat{ font-size:.85rem; font-style:italic; opacity:.85; }

/* ---------- Founder program (mutual benefit) ---------- */
.founder-program{ max-width:760px; }
.founder-lead{ color:rgba(255,255,255,.92); font-size:1.08rem; }
.mutual-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; margin:2em 0; }
.mutual-card{
  background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.25); border-radius:6px; padding:22px 24px;
  transition:transform .3s var(--ease), background .3s var(--ease);
}
.mutual-card:hover{ transform:translateY(-3px); background:rgba(255,255,255,.15); }
.mutual-grid .mutual-card:nth-child(1){ transition-delay:0s; }
.mutual-grid .mutual-card:nth-child(2){ transition-delay:.1s; }
.mutual-who{ font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--navy); background:#fff; display:inline-block; padding:3px 9px; border-radius:2px; margin-bottom:.8em; }
.mutual-desc{ color:rgba(255,255,255,.92); margin:0; }
.founder-note{ color:rgba(255,255,255,.85); font-size:.92rem; opacity:.85; font-style:italic; }

/* ---------- FAQ / accordion ---------- */
.accordion{ margin-top:2.4em; border-top:1px solid rgba(15,37,64,.15); max-width:74ch; }
.accordion-item{ border-bottom:1px solid rgba(15,37,64,.15); }
.accordion-trigger{
  width:100%; text-align:left; background:none; border:0; cursor:pointer;
  font-family:var(--sans); font-weight:600; font-size:1.02rem; color:var(--navy);
  padding:20px 34px 20px 0; position:relative;
}
.accordion-trigger::after{
  content:"+"; position:absolute; right:4px; top:18px; font-size:1.3rem; color:var(--teal-ink);
  transition:transform .3s var(--ease);
}
.accordion-trigger[aria-expanded="true"]::after{ transform:rotate(45deg); }
.accordion-panel{
  max-height:0; overflow:hidden; transition:max-height .35s var(--ease);
}
.accordion-panel p{ color:var(--slate); padding-bottom:20px; margin:0; max-width:60ch; }

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:70px; align-items:start; }
.contact-lead{ color:var(--slate-light); max-width:44ch; }
.contact-details{ list-style:none; padding:0; margin:2em 0 0; }
.contact-details li{ display:flex; gap:16px; padding:12px 0; border-top:1px solid var(--line-on-navy); align-items:baseline; }
.contact-label{ font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--teal-bright); width:100px; flex:none; }
.contact-details a{ color:#fff; text-decoration:none; border-bottom:1px solid transparent; transition:border-color .2s var(--ease), color .2s var(--ease); }
.contact-details a:hover{ border-color:var(--teal-bright); color:var(--teal-bright); }
.contact-details span:last-child{ color:var(--slate-light); }

.contact-form{ background:var(--paper); border-radius:8px; padding:36px; box-shadow:0 30px 70px rgba(0,0,0,.25); }
.form-row{ margin-bottom:18px; }
.form-row label{ display:block; font-size:.85rem; font-weight:600; color:var(--navy); margin-bottom:6px; }
.form-row input, .form-row textarea{
  width:100%; font-family:var(--sans); font-size:.98rem; padding:12px 14px; border:1.5px solid rgba(15,37,64,.18);
  border-radius:4px; background:#fff; color:var(--ink); resize:vertical;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.form-row input:focus, .form-row textarea:focus{
  border-color:var(--teal-ink); outline:none; box-shadow:0 0 0 4px rgba(12,122,122,.15);
}
.form-note{ font-size:.78rem; color:var(--slate); margin-top:12px; text-align:center; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer{ background:var(--navy-deep); padding:64px 0 34px; }
.footer-inner{ display:flex; flex-direction:column; align-items:center; text-align:center; gap:14px; }
.logo-footer .logo-word{ color:#fff; }
.footer-tag{ color:var(--slate-light); font-size:.92rem; max-width:44ch; }
.footer-nav{ display:flex; gap:26px; margin:10px 0; flex-wrap:wrap; justify-content:center; }
.footer-nav a{ color:var(--slate-light); text-decoration:none; font-size:.88rem; }
.footer-nav a:hover{ color:var(--teal-bright); }
.footer-legal{ color:rgba(246,244,238,.45); font-size:.76rem; margin-top:14px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px){
  .main-nav{
    position:fixed; inset:0 0 0 auto; width:min(78vw,320px); background:var(--navy-deep); z-index:95;
    flex-direction:column; align-items:flex-start; justify-content:center; gap:30px; padding:0 40px;
    transform:translateX(100%); transition:transform .35s var(--ease); box-shadow:-10px 0 40px rgba(0,0,0,.3);
  }
  .main-nav.open{ transform:translateX(0); }
  .main-nav a{ font-size:1.1rem; }
  .nav-toggle{ display:flex; }
  .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); }
  .nav-backdrop{ display:block; }

  .translator-grid{ grid-template-columns:1fr; }
  .cards-3{ grid-template-columns:1fr; }
  .pricing-grid{ grid-template-columns:1fr; }
  .mutual-grid{ grid-template-columns:1fr; }
  .fondateur-grid{ grid-template-columns:1fr; gap:30px; }
  .fondateur-avatar{ width:140px; height:140px; }
  .contact-grid{ grid-template-columns:1fr; gap:40px; }
  .contact-form{ padding:26px; }
  .section{ padding:76px 0; }
}

@media (max-width: 480px){
  .hero-title{ font-size:2rem; }
  .btn{ width:100%; }
  .hero-actions{ flex-direction:column; }
}