/* RIAgora — feuille de style principale */

:root{
  --bg:#faf7f1;
  --surface:#ffffff;
  --ink:#20303b;
  --muted:#5a6b76;
  --primary:#14595f;
  --primary-strong:#0e4348;
  --on-primary:#ffffff;
  --accent:#c25e2f;
  --on-accent:#ffffff;
  --line:#e6decf;
  --wash:#f1eadd;
  --focus:#c25e2f;
  --footer-bg:#0e4348;
  --footer-ink:#cfe2e1;
  --footer-link:#ffffff;
  --radius:14px;
  --maxw:66rem;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#141b20;
    --surface:#1c262d;
    --ink:#e9e5dc;
    --muted:#9fadb6;
    --primary:#63bdc2;
    --primary-strong:#8ad3d7;
    --on-primary:#0b2f33;
    --accent:#e2915e;
    --on-accent:#2b1408;
    --line:#2d3b44;
    --wash:#19232a;
    --focus:#e2915e;
    --footer-bg:#10181d;
    --footer-ink:#9fadb6;
    --footer-link:#e9e5dc;
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:1rem/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
img{max-width:100%;height:auto}
a{color:var(--primary)}
h1,h2,h3{
  font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  line-height:1.22;
  margin:0 0 .5em;
}
h1{font-size:clamp(1.9rem,4.6vw,3.1rem)}
h2{font-size:1.65rem}
h3{font-size:1.15rem}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:1.1rem}
.wrap-narrow{max-width:46rem}
.muted{color:var(--muted)}

/* Lien d'évitement */
.skip{position:absolute;left:-9999px;top:0;background:var(--surface);color:var(--ink);padding:.6rem 1rem;border-radius:8px;z-index:100}
.skip:focus{left:.6rem;top:.6rem}

/* En-tête */
.site-header{
  position:sticky;top:0;z-index:10;
  background:var(--bg);
  background:color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:.8rem;flex-wrap:wrap;padding-block:.65rem}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink)}
.brand-name{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-weight:700;font-size:1.3rem}
.brand-ria{color:var(--primary)}
.site-nav{display:flex;gap:.2rem;align-items:center;flex-wrap:wrap}
.site-nav a{padding:.45rem .7rem;border-radius:9px;text-decoration:none;color:var(--ink);font-weight:500}
.site-nav a:hover{background:var(--wash)}
.site-nav a[aria-current="page"]{color:var(--primary);font-weight:700}
.site-nav a.btn-primary[aria-current="page"]{color:var(--on-primary)}
.btn-nav{margin-left:.4rem}

/* Boutons */
.btn{
  display:inline-block;padding:.6rem 1.2rem;border-radius:999px;
  border:1.5px solid transparent;font:inherit;font-weight:600;
  text-decoration:none;cursor:pointer;
}
.btn-primary{background:var(--primary);color:var(--on-primary)}
.btn-primary:hover{background:var(--primary-strong)}
.site-nav .btn-primary{color:var(--on-primary)}
.btn-ghost{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-ghost:hover{background:var(--wash)}

/* Bandeaux (héros et têtes de page) */
.hero,.page-head{
  background-color:var(--wash);
  background-image:radial-gradient(var(--line) 1px, transparent 1px);
  background-size:22px 22px;
  border-bottom:1px solid var(--line);
}
.hero-in{padding-block:4.2rem 3.8rem;text-align:center;max-width:52rem;margin-inline:auto}
.page-head .wrap{padding-block:2.8rem 2.4rem;max-width:52rem}
.kicker{
  display:inline-block;background:var(--surface);border:1px solid var(--line);
  color:var(--primary);font-weight:600;font-size:.85rem;letter-spacing:.02em;
  padding:.28rem .85rem;border-radius:999px;margin:0 0 1.1rem;
}
.lead{font-size:1.13rem;color:var(--muted);max-width:44rem}
.hero-in .lead{margin-inline:auto}
.cta-row{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap;margin-top:1.7rem}

/* Sections */
.section{padding-block:2.6rem}
.section h2{margin-bottom:.9rem}
.section-intro{max-width:48rem;margin-bottom:1.5rem}

/* Cartes */
.cards{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));margin-top:1.4rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem 1.25rem 1rem}
.card h3{color:var(--primary);margin:0 0 .4rem}
.card p{margin:0}

/* Étapes numérotées */
.steps{list-style:none;margin:1.4rem 0 0;padding:0;counter-reset:step;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.steps li{counter-increment:step;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem 1.25rem 1rem}
.steps li::before{
  content:counter(step);
  display:inline-flex;align-items:center;justify-content:center;
  width:2rem;height:2rem;border-radius:50%;
  background:var(--accent);color:var(--on-accent);font-weight:700;
  margin-bottom:.65rem;
}
.steps h3{margin:0 0 .35rem}
.steps p{margin:0}

/* Listes à puces personnalisées */
.checklist{list-style:none;padding:0;margin:1rem 0 0;display:grid;gap:.7rem}
.checklist li{padding-left:1.5rem;position:relative}
.checklist li::before{content:"";position:absolute;left:0;top:.55em;width:.55rem;height:.55rem;border-radius:50%;background:var(--accent)}

/* Thèmes */
.themes{list-style:none;margin:0 0 1.4rem;padding:0;display:grid;gap:.75rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.themes li{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:10px;padding:.8rem 1rem}

/* Encadré d'annonce */
.notice{background:var(--wash);border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:var(--radius);padding:1.5rem 1.6rem}
.notice-kicker{color:var(--accent);font-weight:700;text-transform:uppercase;font-size:.8rem;letter-spacing:.06em;margin:0 0 .35rem}
.notice h2{margin-top:0}
.notice p:last-child{margin-bottom:0}

/* Tableaux */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{width:100%;border-collapse:collapse;min-width:34rem}
th,td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--wash);font-weight:700}
tbody tr:last-child td{border-bottom:none}

/* Formulaire */
.form{margin-bottom:1.6rem}
.field{display:grid;gap:.35rem;margin-bottom:1.1rem}
.field label{font-weight:600}
.req{color:var(--accent)}
input,select,textarea{
  font:inherit;color:var(--ink);background:var(--surface);
  border:1.5px solid var(--line);border-radius:10px;
  padding:.65rem .8rem;width:100%;
}
input:focus,select:focus,textarea:focus{
  outline:3px solid var(--focus);
  outline:3px solid color-mix(in srgb, var(--focus) 40%, transparent);
  border-color:var(--focus);
}
textarea{resize:vertical}
.honey{position:absolute !important;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:.9rem;color:var(--muted)}

/* Pied de page */
.site-footer{margin-top:2.5rem;background:var(--footer-bg);color:var(--footer-ink)}
.site-footer a{color:var(--footer-link)}
.footer-grid{display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding-block:2.6rem 1.4rem}
.footer-brand{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-weight:700;font-size:1.35rem;margin:0 0 .4rem;color:var(--footer-link)}
.site-footer .brand-ria{color:#e2915e}
.footer-h{font-family:inherit;font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;margin:0 0 .6rem;color:var(--footer-ink)}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}
.site-footer p{margin:0 0 .5rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);padding-block:1rem;font-size:.9rem}
.footer-bottom p{margin:0}