/* Kolis/OS — Vitrine publique */
:root{
  --ink:#16233F;
  --ink-soft:#233355;
  --slate:#4C5C74;
  --paper:#EAEDE4;
  --card:#FBFBF8;
  --line:#D2D6C9;
  --amber:#C97A25;
  --amber-deep:#9C5D18;
  --teal:#1E8F72;
  --danger:#AF4234;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--paper);font-family:'Inter',sans-serif;color:var(--ink);}
a{color:inherit;}
.container{max-width:1080px;margin:0 auto;padding:0 24px;}

/* NAV */
.nav{
  display:flex;justify-content:space-between;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.nav .brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:19px;}
.nav .brand .mark{width:30px;height:30px;background:var(--ink);color:var(--paper);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;}
.nav .brand img{width:30px;height:30px;object-fit:contain;flex-shrink:0;}
.nav .links{display:flex;gap:30px;font-size:13.5px;font-weight:500;}
.nav .links a{text-decoration:none;color:var(--slate);}
.nav .links a:hover{color:var(--ink);}
.nav .cta{display:flex;gap:10px;align-items:center;}

.btn{font-family:'IBM Plex Mono',monospace;font-size:12.5px;letter-spacing:.5px;padding:11px 20px;border:none;cursor:pointer;text-transform:uppercase;text-decoration:none;display:inline-block;transition:background-color .15s ease,border-color .15s ease,transform .1s ease;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-soft);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--ink);}
.btn-amber{background:var(--amber);color:#fff;}
.btn-amber:hover{background:var(--amber-deep);}
.nav .links a{transition:color .15s ease;}

/* Entrée en douceur des éléments visibles au premier écran */
@keyframes fadeInUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.hero .eyebrow,.hero h1,.hero p.lead,.hero .actions,.hero .trust,.hero .route-card{animation:fadeInUp .6s ease both;}
.hero h1{animation-delay:.05s;}
.hero p.lead{animation-delay:.1s;}
.hero .actions{animation-delay:.16s;}
.hero .trust{animation-delay:.22s;}
.hero .route-card{animation-duration:.7s;animation-delay:.15s;}

/* Révélation discrète au défilement (voir assets/js/vitrine.js) */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-visible{opacity:1;transform:none;}
.compare .col:nth-child(2).reveal{transition-delay:.08s;}
.features .feature:nth-child(2).reveal{transition-delay:.06s;}
.features .feature:nth-child(3).reveal{transition-delay:.12s;}
.features .feature:nth-child(4).reveal{transition-delay:.18s;}
.steps .step:nth-child(2).reveal{transition-delay:.1s;}
.steps .step:nth-child(3).reveal{transition-delay:.2s;}
.pricing-grid .plan:nth-child(2).reveal{transition-delay:.08s;}
.pricing-grid .plan:nth-child(3).reveal{transition-delay:.16s;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .hero .eyebrow,.hero h1,.hero p.lead,.hero .actions,.hero .trust,.hero .route-card{animation:none;}
  .reveal{opacity:1;transform:none;transition:none;}
  .feature,.plan,.compare .col,.route-card{transition:none;}
  .back-to-top{transition:none;}
}

/* HERO */
.hero{padding:74px 0 60px;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:1.8px;text-transform:uppercase;color:var(--amber-deep);margin:0 0 14px;}
.hero h1{font-family:'Space Grotesk',sans-serif;font-size:44px;line-height:1.12;letter-spacing:-.5px;margin:0 0 20px;}
.hero p.lead{font-size:16px;color:var(--slate);line-height:1.6;max-width:460px;margin:0 0 28px;}
.hero .actions{display:flex;gap:12px;margin-bottom:30px;}
.hero .trust{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--slate);letter-spacing:.5px;}

/* Route signature visual */
.route-card{background:var(--ink);padding:34px 28px;position:relative;overflow:hidden;}
.route-card .route-label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:#8FA0C4;margin-bottom:26px;}
.route{display:flex;flex-direction:column;gap:0;}
.stop{display:flex;align-items:flex-start;gap:14px;position:relative;padding-bottom:30px;}
.stop:last-child{padding-bottom:0;}
.stop::before{
  content:'';position:absolute;left:5px;top:16px;bottom:-14px;width:0;
  border-left:2px dashed #47588A;
}
.stop:last-child::before{display:none;}
.stop .dot{width:12px;height:12px;border-radius:50%;background:var(--amber);flex-shrink:0;margin-top:3px;z-index:1;}
.stop.done .dot{background:var(--teal);}
.stop .info{flex:1;}
.stop .info .ville{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14.5px;color:#fff;}
.stop .info .meta{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:#8FA0C4;letter-spacing:.5px;margin-top:2px;}
.stop .info .statut{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.6px;text-transform:uppercase;padding:3px 8px;display:inline-block;margin-top:6px;}
.statut.livre{background:rgba(30,143,114,.2);color:#5FCBA9;}
.statut.transit{background:rgba(201,122,37,.22);color:#E4A85D;}
.statut.attente{background:rgba(255,255,255,.08);color:#8FA0C4;}

/* SECTIONS */
section{padding:64px 0;}
section.tinted{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:560px;margin-bottom:42px;}
.section-head h2{font-family:'Space Grotesk',sans-serif;font-size:28px;margin:0 0 12px;}
.section-head p{color:var(--slate);font-size:14.5px;line-height:1.6;margin:0;}

/* comparatif problème / solution */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare .col{padding:26px 26px 22px;border:1px solid var(--line);}
.compare .col.bad{background:#F7F1EC;}
.compare .col.good{background:var(--card);border-color:var(--teal);}
.compare .col h3{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:1px;text-transform:uppercase;margin:0 0 16px;}
.compare .col.bad h3{color:var(--danger);}
.compare .col.good h3{color:var(--teal);}
.compare ul{margin:0;padding:0;list-style:none;}
.compare li{font-size:13.5px;padding:8px 0;border-top:1px dashed var(--line);color:var(--slate);}
.compare li:first-child{border-top:none;}

/* feature grid */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.feature{background:var(--card);padding:26px 22px;transition:transform .2s ease,box-shadow .2s ease;position:relative;}
.feature:hover{transform:translateY(-3px);box-shadow:0 12px 22px -14px rgba(22,35,63,.4);z-index:1;}
.feature .num{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--amber-deep);letter-spacing:1px;margin-bottom:14px;}
.feature h4{font-family:'Space Grotesk',sans-serif;font-size:15.5px;margin:0 0 8px;}
.feature p{font-size:12.5px;color:var(--slate);line-height:1.55;margin:0;}

/* steps (genuinely sequential) */
.steps{display:flex;gap:0;counter-reset:step;}
.step{flex:1;padding:0 20px 0 0;position:relative;}
.step:not(:last-child)::after{content:'';position:absolute;top:16px;right:0;width:20px;height:1px;background:var(--line);}
.step .n{font-family:'Space Grotesk',sans-serif;font-size:22px;font-weight:700;color:var(--line-dark,var(--ink));border:1px solid var(--ink);width:34px;height:34px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.step h4{font-family:'Space Grotesk',sans-serif;font-size:15px;margin:0 0 8px;}
.step p{font-size:12.5px;color:var(--slate);line-height:1.55;margin:0;}

/* pricing */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.plan{background:var(--card);border:1px solid var(--line);padding:30px 26px;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;}
.plan:hover{transform:translateY(-3px);box-shadow:0 14px 26px -16px rgba(22,35,63,.4);}
.plan.featured{border-color:var(--ink);position:relative;}
.plan.featured::before{
  content:'Recommandé';position:absolute;top:-1px;right:-1px;
  background:var(--ink);color:#fff;font-family:'IBM Plex Mono',monospace;
  font-size:9.5px;letter-spacing:1px;text-transform:uppercase;padding:5px 10px;
}
.plan .plan-name{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:1.2px;text-transform:uppercase;color:var(--amber-deep);margin-bottom:10px;}
.plan .plan-price{font-family:'Space Grotesk',sans-serif;font-size:34px;font-weight:700;margin-bottom:2px;}
.plan .plan-price span{font-size:13px;font-weight:500;color:var(--slate);}
.plan .plan-sub{font-size:12px;color:var(--slate);margin-bottom:22px;}
.plan ul{list-style:none;margin:0 0 26px;padding:0;flex:1;}
.plan li{font-size:13px;padding:8px 0;border-top:1px dashed var(--line);color:var(--ink);}
.plan li:first-child{border-top:none;}
.plan li.muted{color:#A6AC9C;}

/* alertes (réutilisées par la page de suivi public) */
.alert{padding:12px 16px;font-size:13px;margin-bottom:20px;border-left:3px solid;}
.alert-error{background:#FBEDEA;border-color:var(--danger);color:var(--danger);}
.alert-success{background:#E2F1EC;border-color:var(--teal);color:var(--teal);}

/* footer */
footer.site-footer{border-top:1px solid var(--line);padding:34px 0;}
footer.site-footer .row{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--slate);}
footer.site-footer .brand{font-family:'Space Grotesk',sans-serif;font-weight:600;color:var(--ink);}

/* signup form (inscription.html) */
.signup-wrap{display:grid;grid-template-columns:1fr 380px;gap:0;border:1px solid var(--line);background:var(--card);}
.signup-form{padding:44px 44px 40px;}
.signup-form h2{font-family:'Space Grotesk',sans-serif;font-size:24px;margin:0 0 6px;}
.signup-form p.lead{color:var(--slate);font-size:13.5px;margin:0 0 30px;}
.field-row{display:flex;gap:18px;margin-bottom:18px;}
.field-row .field{flex:1;}
.field label{display:block;font-size:12px;font-weight:600;color:var(--slate);margin-bottom:6px;}
.field label .req{color:var(--danger);}
.field input, .field select{
  width:100%;font-family:'Inter',sans-serif;font-size:14px;padding:10px 12px;
  border:1px solid #C4C9BA;background:#fff;color:var(--ink);
}
.field input:focus, .field select:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:var(--amber);}
.section-label{
  font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:1px;text-transform:uppercase;
  color:var(--ink);border-bottom:1px dashed var(--line);padding-bottom:8px;margin:24px 0 18px;
}
.section-label:first-of-type{margin-top:0;}
.signup-recap{background:var(--ink);color:#fff;padding:44px 32px;}
.signup-recap .eyebrow{color:#8FA0C4;}
.recap-plan{border:1px solid #3A4C74;padding:20px;margin-top:14px;}
.recap-plan .name{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--amber);margin-bottom:6px;}
.recap-plan .price{font-family:'Space Grotesk',sans-serif;font-size:26px;font-weight:700;margin-bottom:14px;}
.recap-plan .price span{font-size:12px;color:#8FA0C4;font-weight:500;}
.recap-plan ul{list-style:none;margin:0;padding:0;}
.recap-plan li{font-size:12.5px;padding:6px 0;color:#C7D0E4;border-top:1px dashed #3A4C74;}
.recap-plan li:first-child{border-top:none;}
.recap-swap{display:block;text-align:center;margin-top:18px;font-size:12px;color:#8FA0C4;text-decoration:underline;}
.terms{font-size:11.5px;color:var(--slate);margin:22px 0;line-height:1.5;}

/* Bouton « remonter en haut » (voir assets/js/vitrine.js) */
.back-to-top{
  position:fixed;right:24px;bottom:24px;z-index:40;
  width:44px;height:44px;border-radius:50%;
  background:var(--ink);color:var(--paper);border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
  box-shadow:0 8px 20px -6px rgba(22,35,63,.45);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s,background-color .15s ease;
}
.back-to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.back-to-top:hover{background:var(--ink-soft);}

@media(max-width:880px){
  .hero{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .features{grid-template-columns:repeat(2,1fr);}
  .steps{flex-direction:column;gap:26px;}
  .step:not(:last-child)::after{display:none;}
  .pricing-grid{grid-template-columns:1fr;}
  .signup-wrap{grid-template-columns:1fr;}
  .nav .links{display:none;}
  .back-to-top{right:16px;bottom:16px;width:40px;height:40px;}
}