:root{
  /* marque fixe (identique quel que soit le thème du visiteur) */
  --ink:#1a212c;
  --ink-2:#232c3a;
  --ink-3:#2c3646;
  --ink-line:rgba(255,255,255,.09);
  --ink-text:#eef3f9;
  --ink-text-muted:#9fadbd;
  --electric:#2f8fe0;
  --electric-2:#1c6fc2;
  --electric-bright:#48c6ef;
  --glow:#5fd8ff;

  --tier-indep-fill:#6b8fb3;
  --tier-btoc-fill:#2f8fe0;
  --tier-btob-fill:#17b8e6;
  --tier-devis-fill:#d99a2b;

  /* surfaces adaptatives (contenu) */
  --bg:#f2f5f9;
  --surface:#ffffff;
  --surface-2:#eaeef4;
  --border:#dbe2ea;
  --text:#151b23;
  --text-muted:#57626e;
  --text-faint:#87919c;
  --shadow:0 1px 2px rgba(15,20,26,.05), 0 10px 26px -14px rgba(15,20,26,.18);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0f141a;
    --surface:#161c24;
    --surface-2:#1c232c;
    --border:#2a323c;
    --text:#eef2f6;
    --text-muted:#9aa5b1;
    --text-faint:#6d7885;
    --shadow:0 1px 2px rgba(0,0,0,.35), 0 14px 30px -16px rgba(0,0,0,.6);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0f141a;
  --surface:#161c24;
  --surface-2:#1c232c;
  --border:#2a323c;
  --text:#eef2f6;
  --text-muted:#9aa5b1;
  --text-faint:#6d7885;
  --shadow:0 1px 2px rgba(0,0,0,.35), 0 14px 30px -16px rgba(0,0,0,.6);
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box;}
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }
[hidden]{display:none!important;}
img{max-width:100%; display:block;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  -webkit-font-smoothing:antialiased;
  padding-inline:20px;
}
h1,h2,h3{
  font-family:'Chakra Petch', system-ui, sans-serif;
  text-wrap:balance;
  margin:0;
  letter-spacing:-0.01em;
}
p{margin:0;}
a{color:inherit;}
button{font-family:inherit;}
.mono{font-family:'IBM Plex Mono', ui-monospace, monospace;}
.eyebrow{
  font-family:'IBM Plex Mono', ui-monospace, monospace;
  font-size:.72rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  color:var(--text-faint);
}
.wrap{max-width:1160px; margin-inline:auto;}
:focus-visible{outline:2px solid var(--electric-bright); outline-offset:2px;}

.logo-mark{ width:34px; height:34px; flex:none; }

/* ---------- Header ---------- */
header{
  position:sticky; top:0; z-index:40;
  background:var(--ink);
  border-bottom:1px solid var(--ink-line);
  margin-inline:-20px;
  padding-inline:20px;
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding-block:14px; gap:20px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  text-decoration:none; white-space:nowrap;
}
.brand .wordmark{
  font-family:'Chakra Petch', sans-serif; font-weight:700; font-size:1.05rem;
  letter-spacing:.04em; color:var(--ink-text);
  text-shadow:0 0 14px rgba(95,216,255,.28);
}
.brand .wordmark b{ color:var(--electric-bright); font-weight:700; }

nav.links{ display:flex; align-items:center; gap:6px; list-style:none; margin:0; padding:0; }
nav.links > li{ position:relative; }
nav.links > li > a, nav.links > li > button.navlink{
  display:inline-block; padding:10px 14px; font-size:.92rem; font-weight:500;
  color:var(--ink-text-muted); text-decoration:none;
  background:none; border:none; cursor:pointer;
  position:relative;
}
nav.links > li > a::after, nav.links > li > button.navlink::after{
  content:""; position:absolute; left:14px; right:14px; bottom:6px; height:2px;
  background:var(--electric-bright); transform:scaleX(0); transform-origin:left;
  transition:transform .2s ease;
}
nav.links > li > a:hover, nav.links > li > button.navlink:hover,
nav.links > li:focus-within > a, nav.links > li:focus-within > button.navlink,
nav.links > li.is-active > a, nav.links > li.is-active > button.navlink{ color:var(--ink-text); }
nav.links > li > a:hover::after, nav.links > li > button.navlink:hover::after,
nav.links > li:focus-within > a::after, nav.links > li:focus-within > button.navlink::after,
nav.links > li.is-active > a::after, nav.links > li.is-active > button.navlink::after{ transform:scaleX(1); }

.mega{
  position:absolute; top:calc(100% + 8px); left:50%; transform:translateX(-50%);
  width:520px; background:var(--ink-2); border:1px solid var(--ink-line); border-radius:12px;
  box-shadow:0 20px 44px -18px rgba(0,0,0,.55);
  padding:14px; display:grid; grid-template-columns:repeat(2,1fr); gap:8px;
  opacity:0; visibility:hidden; transform-origin:top center;
  transform:translateX(-50%) translateY(4px) scale(.98);
  transition:opacity .16s ease, transform .16s ease, visibility .16s;
}
li.has-mega:hover .mega, li.has-mega:focus-within .mega{
  opacity:1; visibility:visible; transform:translateX(-50%) translateY(0) scale(1);
}
.mega a{
  display:block; padding:10px 12px; border-radius:8px; text-decoration:none;
  color:var(--ink-text); font-size:.85rem;
}
.mega a:hover{ background:var(--ink-3); }
.mega a .mp-name{ font-weight:600; }
.mega a .mp-price{ display:block; margin-top:2px; font-family:'IBM Plex Mono',monospace; font-size:.74rem; color:var(--ink-text-muted); }
.mega .mega-all{
  grid-column:1/-1; text-align:center; font-size:.8rem; color:var(--electric-bright);
  font-weight:600; border-top:1px solid var(--ink-line); margin-top:2px; padding-top:10px;
}

.cta-btn{
  font-weight:600; font-size:.88rem; text-decoration:none; white-space:nowrap;
  padding:.68em 1.3em; border-radius:999px; border:1px solid transparent;
  background:linear-gradient(135deg, var(--electric), var(--electric-bright));
  color:#08121c;
  box-shadow:0 8px 20px -8px rgba(47,143,224,.65);
  display:inline-block;
}
.cta-btn.ghost{
  background:transparent; color:var(--ink-text); border-color:var(--ink-line); box-shadow:none;
}
.nav-right{ display:flex; align-items:center; gap:14px; }

.hamburger{
  display:none; width:38px; height:38px; border-radius:8px; border:1px solid var(--ink-line);
  background:var(--ink-2); position:relative; cursor:pointer;
}
.hamburger span{
  position:absolute; left:9px; right:9px; height:2px; background:var(--ink-text);
  transition:transform .2s ease, opacity .2s ease;
}
.hamburger span:nth-child(1){ top:12px; }
.hamburger span:nth-child(2){ top:18px; }
.hamburger span:nth-child(3){ top:24px; }
.hamburger.is-open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.hamburger.is-open span:nth-child(2){ opacity:0; }
.hamburger.is-open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

.mobile-panel{
  background:var(--ink-2); border-top:1px solid var(--ink-line);
  padding:8px 4px 18px;
  margin-inline:-20px;
}
.mobile-panel .wrap{ padding-inline:20px; }
.mobile-panel a.mp-link{
  display:block; padding:12px 10px; color:var(--ink-text); text-decoration:none;
  font-weight:500; border-bottom:1px solid var(--ink-line); font-size:.95rem;
}
.mobile-panel .mp-group-label{
  padding:14px 10px 6px; font-family:'IBM Plex Mono',monospace; font-size:.68rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--ink-text-muted);
}
.mobile-panel .mp-sub{ padding-left:20px; display:flex; justify-content:space-between; }
.mobile-panel .mp-sub .mp-price{ font-family:'IBM Plex Mono',monospace; font-size:.78rem; color:var(--electric-bright); }
.mobile-panel .cta-btn{ display:block; text-align:center; margin:14px 10px 0; }

@media (max-width:860px){
  nav.links{ display:none; }
  .hamburger{ display:block; }
  .nav-right .cta-btn.ghost{ display:none; }
}

/* ---------- Page header (pages internes) ---------- */
.page-head{ padding-block:52px 40px; border-top:none; }
.page-head .eyebrow{ margin-bottom:14px; }
.page-head h1{ font-size:clamp(1.8rem,1.3rem + 2vw,2.6rem); line-height:1.14; }
.page-head p.lead{ margin-top:16px; color:var(--text-muted); font-size:1.02rem; max-width:60ch; line-height:1.6; }

/* ---------- Hero (accueil) ---------- */
.hero{
  padding-block:56px 76px;
  display:grid; grid-template-columns:1.15fr .85fr; gap:52px; align-items:center;
  border-top:none;
}
.hero-left{ min-height:302px; display:flex; flex-direction:column; }
.hero-slide{ transition:opacity .35s ease, transform .35s ease; }
.hero-slide.is-changing{ opacity:0; transform:translateY(8px); }
@media (prefers-reduced-motion: reduce){ .hero-slide{ transition:none; } }
.hero h1{ font-size:clamp(1.9rem, 1.3rem + 2.3vw, 2.9rem); line-height:1.12; margin-block:16px 18px; }
.hero p.lead{ font-size:1.02rem; color:var(--text-muted); line-height:1.6; max-width:48ch; }
.hero-ctas{ display:flex; gap:12px; margin-top:26px; flex-wrap:wrap; }
.hero-ctas .cta-btn{ padding:.85em 1.4em; font-size:.95rem; }
.hero-ctas .cta-btn.ghost{ background:transparent; color:var(--text); border:1px solid var(--border); box-shadow:none; }

.slider-controls{
  margin-top:32px; display:flex; align-items:center; gap:14px;
}
.slider-arrow{
  width:34px; height:34px; border-radius:50%; border:1px solid var(--border);
  background:var(--surface); color:var(--text); cursor:pointer;
}
.slider-arrow:hover{ border-color:var(--electric); color:var(--electric); }
.slider-dots{ display:flex; gap:8px; }
.slider-dots button{
  width:8px; height:8px; border-radius:50%; border:none; padding:0;
  background:var(--border); cursor:pointer;
}
.slider-dots button[aria-current="true"]{ background:var(--electric); width:22px; border-radius:5px; transition:width .2s ease; }

.fiche{
  background:var(--surface); border:1px solid var(--border); border-radius:16px;
  box-shadow:var(--shadow); overflow:hidden;
}
.fiche-head{
  display:flex; align-items:center; justify-content:space-between; padding:14px 18px;
  border-bottom:1px solid var(--border); background:var(--surface-2);
}
.fiche-head .mono{ font-size:.68rem; letter-spacing:.1em; color:var(--text-faint); }
.dot-live{ display:inline-flex; align-items:center; gap:6px; font-size:.72rem; font-weight:600; color:var(--tier-btob-fill); }
.dot-live::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--tier-btob-fill); }
.fiche-body{ padding:20px 18px; }
.fiche-title{ font-family:'Chakra Petch',sans-serif; font-size:1.3rem; font-weight:700; }
.fiche-sub{ color:var(--text-muted); font-size:.88rem; margin-top:2px; }
.fiche-rows{ margin-top:16px; display:flex; flex-direction:column; gap:10px; }
.fiche-row{ display:flex; align-items:center; justify-content:space-between; font-size:.86rem; padding-block:8px; border-top:1px dashed var(--border); }
.fiche-row:first-child{ border-top:none; padding-top:0; }
.fiche-row .label{ color:var(--text-muted); }
.fiche-row .val{ font-weight:600; }
.tag{ font-family:'IBM Plex Mono',monospace; font-size:.68rem; font-weight:600; letter-spacing:.03em; padding:.3em .6em; border-radius:6px; }
.tag.btoc{ color:var(--tier-btoc-fill); background:color-mix(in srgb, var(--tier-btoc-fill) 16%, var(--surface)); }

@media (max-width:860px){ .hero{ grid-template-columns:1fr; padding-block:40px 52px; } }

/* ---------- Section shell ---------- */
section{ padding-block:64px; border-top:1px solid var(--border); }
section:first-of-type{ border-top:none; }
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:40px; flex-wrap:wrap; }
.section-head h2{ font-size:clamp(1.5rem,1.2rem + 1.2vw,2.1rem); }
.section-head p{ color:var(--text-muted); max-width:46ch; font-size:.98rem; line-height:1.55; }

/* ---------- Activités ---------- */
.activites{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--border); border:1px solid var(--border); border-radius:16px; overflow:hidden; }
.activite{ background:var(--surface); padding:32px 28px; display:flex; flex-direction:column; gap:14px; text-decoration:none; color:var(--text); }
.activite .num{ font-family:'IBM Plex Mono',monospace; font-size:.78rem; font-weight:600; color:var(--electric); }
.activite h3{ font-size:1.2rem; }
.activite p{ color:var(--text-muted); font-size:.92rem; line-height:1.55; }
.activite .go{ margin-top:auto; font-size:.85rem; font-weight:600; color:var(--electric); }
@media (max-width:820px){ .activites{ grid-template-columns:1fr; } }

/* ---------- Contenu générique (pages activités) ---------- */
.content-block{ display:grid; grid-template-columns:1.1fr .9fr; gap:44px; align-items:start; }
.content-block .col p + p, .content-block .col ul{ margin-top:14px; }
.content-block h2{ font-size:1.4rem; margin-bottom:14px; }
.content-block p{ color:var(--text-muted); line-height:1.65; font-size:.98rem; }
.content-block ul{ list-style:none; padding:0; display:flex; flex-direction:column; gap:10px; }
.content-block li{ padding-left:22px; position:relative; font-size:.94rem; color:var(--text); }
.content-block li::before{ content:"→"; position:absolute; left:0; color:var(--electric); font-weight:600; }
.side-card{ background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:26px; box-shadow:var(--shadow); }
.side-card h3{ font-size:1.05rem; margin-bottom:10px; }
.side-card p{ color:var(--text-muted); font-size:.9rem; line-height:1.55; }
@media (max-width:820px){ .content-block{ grid-template-columns:1fr; } }

/* ---------- Pricing ---------- */
.packs{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; align-items:stretch; }
.pack{ background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:26px 22px; display:flex; flex-direction:column; box-shadow:var(--shadow); scroll-margin-top:100px; }
.pack.devis{ border:2px dashed var(--tier-devis-fill); }
.pack .accent-bar{ height:4px; width:36px; border-radius:2px; margin-bottom:16px; }
.pack.indep .accent-bar{ background:var(--tier-indep-fill); }
.pack.btoc .accent-bar{ background:var(--tier-btoc-fill); }
.pack.btob .accent-bar{ background:var(--tier-btob-fill); }
.pack.devis .accent-bar{ background:var(--tier-devis-fill); }
.pack .pack-name{ font-family:'Chakra Petch',sans-serif; font-weight:700; font-size:1.15rem; }
.pack .pack-audience{ color:var(--text-muted); font-size:.82rem; margin-top:4px; min-height:2.6em; }
.pack .price{ margin-top:20px; display:flex; align-items:baseline; gap:6px; font-family:'IBM Plex Mono',monospace; font-variant-numeric:tabular-nums; }
.pack .price .amount{ font-size:1.7rem; font-weight:600; }
.pack .price .period{ font-size:.78rem; color:var(--text-muted); }
.pack.devis .price .amount{ font-size:1.5rem; color:var(--tier-devis-fill); }
.pack .setup{ font-size:.78rem; color:var(--text-muted); margin-top:6px; font-family:'IBM Plex Mono',monospace; min-height:2.4em; }
.pack .modules-tag{ margin-top:14px; font-size:.7rem; font-family:'IBM Plex Mono',monospace; color:var(--text-faint); padding-top:14px; border-top:1px solid var(--border); }
.pack ul{ list-style:none; margin:14px 0 0; padding:0; display:flex; flex-direction:column; gap:8px; flex:1; }
.pack li{ font-size:.85rem; color:var(--text); line-height:1.4; padding-left:18px; position:relative; }
.pack li::before{ content:"+"; position:absolute; left:0; top:0; font-family:'IBM Plex Mono',monospace; font-weight:600; color:var(--text-faint); }
.pack.indep li::before{ color:var(--tier-indep-fill); }
.pack.btoc li::before{ color:var(--tier-btoc-fill); }
.pack.btob li::before{ color:var(--tier-btob-fill); }
.pack.devis li::before{ color:var(--tier-devis-fill); }
.pack .pack-cta{ margin-top:22px; text-align:center; text-decoration:none; padding:.72em 1em; border-radius:8px; font-weight:600; font-size:.87rem; border:1px solid var(--border); color:var(--text); }
.pack.indep .pack-cta:hover{ border-color:var(--tier-indep-fill); color:var(--tier-indep-fill); }
.pack.btoc .pack-cta:hover{ border-color:var(--tier-btoc-fill); color:var(--tier-btoc-fill); }
.pack.btob .pack-cta:hover{ border-color:var(--tier-btob-fill); color:var(--tier-btob-fill); }
.pack.devis .pack-cta{ border-color:var(--tier-devis-fill); color:var(--tier-devis-fill); }
.ht-note{ margin-top:20px; font-size:.8rem; color:var(--text-faint); }
@media (max-width:1100px){ .packs{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:640px){ .packs{ grid-template-columns:1fr; } }

/* ---------- Case study / références ---------- */
.case{ display:grid; grid-template-columns:.9fr 1.1fr; gap:44px; align-items:center; }
.case-copy h2{ font-size:clamp(1.5rem,1.2rem+1.2vw,2rem); margin-bottom:14px; }
.case-copy p{ color:var(--text-muted); line-height:1.6; font-size:.98rem; }
.case-copy p + p{ margin-top:12px; }
@media (max-width:820px){ .case{ grid-template-columns:1fr; } }

.ref-empty{
  border:1px dashed var(--border); border-radius:16px; padding:36px;
  text-align:center; color:var(--text-muted); font-size:.95rem;
}

/* ---------- Formulaire de contact ---------- */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ display:flex; flex-direction:column; gap:6px; }
.field.full{ grid-column:1/-1; }
.field label{ font-size:.84rem; font-weight:600; color:var(--text); }
.field input, .field select, .field textarea{
  font-family:inherit; font-size:.95rem; padding:.7em .85em;
  border:1px solid var(--border); border-radius:8px; background:var(--surface); color:var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--electric); }
.field textarea{ resize:vertical; min-height:120px; }
.hp-field{ position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden; }
.form-submit{ margin-top:6px; }
.form-note{ margin-top:14px; font-size:.82rem; color:var(--text-faint); }
.alert{ padding:14px 16px; border-radius:10px; font-size:.92rem; margin-bottom:24px; }
.alert.success{ background:color-mix(in srgb, var(--tier-btob-fill) 16%, var(--surface)); color:var(--tier-btob-fill); border:1px solid var(--tier-btob-fill); }
.alert.error{ background:color-mix(in srgb, #e5484d 16%, var(--surface)); color:#e5484d; border:1px solid #e5484d; }
@media (max-width:700px){ .form-grid{ grid-template-columns:1fr; } }

.contact-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:44px; align-items:start; }
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }

/* ---------- Téléchargements ---------- */
.dl-grid{ display:flex; flex-direction:column; gap:1px; background:var(--border); border:1px solid var(--border); border-radius:14px; overflow:hidden; }
.dl-card{ background:var(--surface); padding:16px 20px; display:flex; align-items:center; gap:16px; }
.dl-icon{ width:40px; height:40px; flex:none; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#08121c; }
.dl-icon-windows{ background:linear-gradient(135deg, var(--electric), var(--electric-bright)); }
.dl-icon-android{ background:linear-gradient(135deg, var(--tier-btob-fill), #7be3c9); }
.dl-info{ flex:1; min-width:0; }
.dl-label{ font-weight:600; font-size:.98rem; }
.dl-meta{ font-family:'IBM Plex Mono',monospace; font-size:.78rem; color:var(--text-muted); margin-top:2px; }
.dl-meta-empty{ color:var(--text-faint); }
@media (max-width:560px){ .dl-card{ flex-wrap:wrap; } .dl-card .cta-btn{ margin-left:56px; } }

/* ---------- Pages légales ---------- */
.legal p, .legal li{ color:var(--text-muted); line-height:1.7; font-size:.96rem; }
.legal h2{ font-size:1.2rem; margin-top:32px; margin-bottom:10px; }
.legal h2:first-child{ margin-top:0; }

/* ---------- Footer ---------- */
footer{ background:var(--ink); border-top:1px solid var(--ink-line); margin-inline:-20px; padding-inline:20px; }
footer .wrap{ padding-block:44px 30px; }
.foot-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:32px; }
.foot-brand p{ color:var(--ink-text-muted); font-size:.88rem; margin-top:10px; max-width:34ch; line-height:1.5; }
footer h4{ font-family:'IBM Plex Mono',monospace; font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-text-muted); margin-bottom:12px; font-weight:600; }
footer ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px; }
footer a{ text-decoration:none; color:var(--ink-text-muted); font-size:.9rem; }
footer a:hover{ color:var(--ink-text); }
.foot-bottom{ margin-top:36px; padding-top:20px; border-top:1px solid var(--ink-line); display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:.78rem; color:var(--ink-text-muted); }
.foot-bottom a{ color:inherit; }
.foot-bottom a:hover{ color:var(--ink-text); }
@media (max-width:700px){ .foot-grid{ grid-template-columns:1fr; } }

/* ---------- WhatsApp sticky ---------- */
.wa-fab{
  position:fixed; right:20px; bottom:20px; z-index:50;
  width:58px; height:58px; border-radius:50%;
  background:linear-gradient(135deg,#25D366,#128C7E);
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 26px -8px rgba(18,140,126,.65);
  text-decoration:none;
}
.wa-fab svg{ width:28px; height:28px; }
.wa-fab::before{
  content:""; position:absolute; inset:0; border-radius:50%;
  box-shadow:0 0 0 0 rgba(37,211,102,.55);
  animation:wa-pulse 2.6s ease-out infinite;
}
@keyframes wa-pulse{
  0%{ box-shadow:0 0 0 0 rgba(37,211,102,.5); }
  70%{ box-shadow:0 0 0 16px rgba(37,211,102,0); }
  100%{ box-shadow:0 0 0 0 rgba(37,211,102,0); }
}
@media (prefers-reduced-motion: reduce){ .wa-fab::before{ animation:none; } }