/* KOPRIN — feuille de style unique, sans dépendance externe */
:root{
  --ink:#04201E;
  --ink-soft:#4E565C;
  --paper:#F9FAFA;
  --mist:#E0F3F2;
  --line:#D3DADB;
  --mint:#5EE8B4;
  --mint-dark:#3FD69E;
  --teal:#045C5C;
  --teal-mid:#069494;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:5rem}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:1.125rem;line-height:1.6}
img,svg{max-width:100%;height:auto}
a{color:var(--teal);text-underline-offset:.18em}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.7rem 1rem;z-index:10}
.skip:focus{left:0}

.wrap{width:100%;max-width:70rem;margin-inline:auto;padding-inline:1.25rem}

/* En-tête */
.site-header{border-bottom:1px solid var(--line);background:var(--paper)}
.bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem 2rem;padding-block:1rem}
.brand{display:inline-flex;align-items:center;text-decoration:none}
.brand img{display:block;height:2.75rem;width:auto}
.site-header nav ul{display:flex;flex-wrap:wrap;gap:.25rem 1.75rem;list-style:none;margin:0;padding:0}
.site-header nav a{color:var(--ink);text-decoration:none;font-size:1rem;padding:.35rem 0;border-bottom:2px solid transparent}
.site-header nav a:hover{border-bottom-color:var(--line)}
.site-header nav a[aria-current="page"]{border-bottom-color:var(--teal-mid);font-weight:600}

/* Titres */
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.14;margin:0 0 .6em;letter-spacing:-.005em}
h1{font-size:clamp(2.2rem,5.2vw,3.7rem);letter-spacing:-.015em}
h2{font-size:clamp(1.6rem,3.2vw,2.25rem)}
h3{font-size:1.3rem;line-height:1.25}
p{margin:0 0 1.1em}
.lede{font-size:1.25rem;color:var(--ink-soft);max-width:36rem}
.prose > *{max-width:41rem}
.prose ul{padding-left:1.2rem}
.prose li{margin-bottom:.5em}

/* Sections */
.section{padding-block:clamp(3rem,7vw,5.5rem)}
.section + .section{border-top:1px solid var(--line)}
.section.tint{background:var(--mist);border-top:0}
.section.tint + .section{border-top:0}
.section-head{max-width:40rem;margin-bottom:2.25rem}

/* Boutons */
.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.75rem}
.btn{display:inline-block;font:600 1rem/1.2 var(--sans);padding:.95rem 1.4rem;border-radius:10px;text-decoration:none;border:2px solid var(--mint);background:var(--mint);color:var(--ink)}
.btn:hover{background:var(--mint-dark);border-color:var(--mint-dark);color:var(--ink)}
.btn.quiet{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn.quiet:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Hero */
.hero{padding-block:clamp(2.5rem,6vw,4.5rem) clamp(2.5rem,6vw,4rem)}
.hero-grid{display:grid;gap:2.5rem;align-items:center}
@media (min-width:56rem){.hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}}
.hero-note{margin:1.5rem 0 0;font-size:1rem;color:var(--ink-soft)}
.route-art{width:100%;max-width:34rem;justify-self:center}
.route-art text{font-family:var(--sans);font-size:15px;fill:var(--ink)}
.route{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.8s .35s cubic-bezier(.4,.1,.3,1) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.route{animation:none;stroke-dashoffset:0}}

/* Étapes : une vraie séquence, donc numérotée */
.steps{list-style:none;margin:0;padding:0;counter-reset:step;max-width:48rem}
.steps li{counter-increment:step;display:grid;grid-template-columns:3.25rem 1fr;gap:0 1rem;padding-block:1.5rem;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps li::before{content:counter(step);font-family:var(--serif);font-weight:700;font-size:2.4rem;line-height:1;color:var(--teal-mid)}
.steps h3{margin-bottom:.35em}
.steps p{margin:0;color:var(--ink-soft)}

/* Deux colonnes sobres */
.split{display:grid;gap:2.5rem}
@media (min-width:52rem){.split{grid-template-columns:1fr 1fr;gap:4rem}}
.split > div{border-top:3px solid var(--ink);padding-top:1.25rem}
.split h2,.split h3{margin-bottom:.5em}
.link-more{font-weight:600}

/* Listes de faits */
.facts{list-style:none;margin:0;padding:0;display:grid;gap:1.5rem}
@media (min-width:52rem){.facts.cols{grid-template-columns:1fr 1fr;gap:2rem 4rem}}
.facts li{padding-left:1.1rem;border-left:3px solid var(--teal-mid)}
.facts strong{display:block;font-family:var(--serif);font-size:1.2rem;margin-bottom:.2em}
.facts span{color:var(--ink-soft)}
.tint .facts span{color:#2C3A3A}

/* FAQ */
.faq{max-width:46rem}
.faq details{border-top:1px solid var(--line);padding:1rem 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-family:var(--serif);font-weight:700;font-size:1.2rem;line-height:1.3;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--sans);font-weight:400;font-size:1.6rem;line-height:1;color:var(--teal);flex:none}
.faq details[open] summary::after{content:"\2212"}
.faq details > p{margin:.75rem 0 0;color:var(--ink-soft);max-width:40rem}

/* Bandeau de fin */
.closing{background:var(--teal);color:#EAF7F4}
.closing h2{color:#fff}
.closing p{color:#D6EFEA;max-width:36rem}
.closing .btn.quiet{background:transparent;color:#fff;border-color:#fff}
.closing .btn.quiet:hover{background:#fff;color:var(--ink);border-color:#fff}

/* Page intérieure */
.page-head{padding-block:clamp(2.5rem,6vw,4rem) 1rem}
.page-head h1{font-size:clamp(2rem,4.4vw,3.1rem);max-width:44rem}
.doc h2{font-size:1.5rem;margin-top:2.25em}
.doc h3{font-size:1.15rem;margin-top:1.6em}
.doc dl{margin:0;display:grid;grid-template-columns:minmax(0,11rem) 1fr;gap:.6rem 1.5rem}
.doc dt{font-weight:600}
.doc dd{margin:0}
@media (max-width:40rem){.doc dl{grid-template-columns:1fr;gap:.1rem}.doc dd{margin-bottom:.8rem}}
.doc table{border-collapse:collapse;width:100%;font-size:1rem;margin:1rem 0 1.5rem}
.doc th,.doc td{border-top:1px solid var(--line);padding:.7rem .8rem .7rem 0;text-align:left;vertical-align:top}
.doc th{font-weight:600;border-top:2px solid var(--ink)}
.table-scroll{overflow-x:auto}
.todo{background:#FFF1B8;color:#3B2F00;padding:.05em .35em;border-radius:3px}
.updated{color:var(--ink-soft);font-size:1rem}

/* Contact */
.contact-list{list-style:none;padding:0;margin:0;max-width:44rem}
.contact-list li{display:grid;gap:.15rem 2rem;padding:1.1rem 0;border-top:1px solid var(--line)}
.contact-list li:last-child{border-bottom:1px solid var(--line)}
@media (min-width:44rem){.contact-list li{grid-template-columns:15rem 1fr;align-items:baseline}}
.contact-list b{font-family:var(--serif);font-size:1.15rem}

/* Pied de page */
.site-footer{background:var(--ink);color:#BFD6D0;font-size:1rem;padding-block:3rem 2rem}
.site-footer a{color:#fff}
.site-footer a:hover{color:var(--mint)}
.foot-grid{display:grid;gap:2rem}
@media (min-width:48rem){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
.site-footer h2{font-family:var(--sans);font-size:1rem;font-weight:600;color:#fff;margin:0 0 .6rem;letter-spacing:0}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:.35rem}
.site-footer address{font-style:normal}
.foot-logo{display:block;height:2.25rem;width:auto;margin-bottom:1rem}
.foot-legal{margin-top:2.25rem;padding-top:1.25rem;border-top:1px solid #22423E;font-size:.925rem}