/* frontierbase.online — feuille de style unique, auto-hébergée.
   Aucune police distante, aucune ressource tierce, aucun suivi. */

:root{
  --ink:#16233a;
  --ink-soft:#4a5870;
  --ink-faint:#5d6a80;
  --paper:#fbfaf8;
  --card:#ffffff;
  --rule:#e3ded3;
  --rule-soft:#efebe3;
  --accent:#2a5d9f;
  --accent-dark:#1d4373;
  --accent-soft:#eaf1f9;
  --flag:#a9581f;
  --flag-mid:#c06d2c;
  --flag-soft:#fdf2e7;
  --ok:#1f6f5c;
  --font-serif:Georgia,"Times New Roman","Liberation Serif","DejaVu Serif",serif;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font:400 17px/1.68 var(--font-sans);
}

img,svg{max-width:100%;height:auto}

a{color:var(--accent-dark)}
a:hover{color:var(--accent)}

h1,h2,h3,h4{font-family:var(--font-serif);line-height:1.22;color:var(--ink);margin:0 0 .5em}
h1{font-size:2.35rem;letter-spacing:-.01em}
h2{font-size:1.65rem;margin-top:2.2em}
h3{font-size:1.24rem;margin-top:1.8em}
h4{font-size:1.02rem;font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.07em;color:var(--ink-faint);font-weight:700}

p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.2em;padding-left:1.35em}
li{margin-bottom:.5em}

/* ---------- barre de divulgation, tout en haut ---------- */
.fb-disclosure-bar{
  background:var(--flag);
  color:#fff;
  font-size:.86rem;
  line-height:1.45;
  padding:.62em 1em;
  text-align:center;
}
.fb-disclosure-bar strong{font-weight:700}
.fb-disclosure-bar a{color:#fff;text-decoration:underline}

/* ---------- en-tête ---------- */
.fb-head{
  border-bottom:1px solid var(--rule);
  background:var(--card);
}
.fb-head-in{
  max-width:var(--wrap);
  margin:0 auto;
  padding:.85rem 1.1rem;
  display:flex;
  flex-wrap:wrap;
  gap:.6rem 1.4rem;
  align-items:baseline;
  justify-content:space-between;
}
.fb-brand{
  font-family:var(--font-serif);
  font-size:1.32rem;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  text-decoration:none;
}
.fb-brand span{color:var(--accent)}
.fb-nav{display:flex;flex-wrap:wrap;gap:.25rem 1.1rem;font-size:.9rem}
.fb-nav a{color:var(--ink-soft);text-decoration:none}
.fb-nav a:hover{color:var(--accent);text-decoration:underline}

/* ---------- grille ---------- */
.fb-wrap{
  max-width:var(--wrap);
  margin:0 auto;
  padding:2rem 1.1rem 3rem;
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:2.6rem;
  align-items:start;
}
.fb-wrap.fb-solo{grid-template-columns:minmax(0,760px);justify-content:center}
.fb-main{min-width:0;max-width:760px}

/* ---------- article ---------- */
.fb-kicker{
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.12em;
  font-weight:700;
  color:var(--accent);
  margin:0 0 .7rem;
}
.fb-byline{
  font-size:.9rem;
  color:var(--ink-soft);
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  padding:.7rem 0;
  margin:0 0 1.6rem;
}
.fb-byline b{color:var(--ink)}
.fb-lede{font-size:1.16rem;line-height:1.6;color:var(--ink-soft)}

/* ---------- encadré de divulgation ---------- */
.fb-disclosure{
  background:var(--flag-soft);
  border:1px solid #edd6bd;
  border-left:5px solid var(--flag-mid);
  border-radius:6px;
  padding:1rem 1.15rem;
  margin:0 0 1.8rem;
  font-size:.94rem;
  line-height:1.6;
}
.fb-disclosure h2,.fb-disclosure h3{
  font-family:var(--font-sans);
  font-size:.79rem;
  text-transform:uppercase;
  letter-spacing:.09em;
  color:var(--flag);
  margin:0 0 .45rem;
}
.fb-disclosure p:last-child{margin-bottom:0}

/* ---------- encadrés génériques ---------- */
.fb-note{
  background:var(--accent-soft);
  border:1px solid #cfe0f0;
  border-radius:6px;
  padding:1rem 1.15rem;
  margin:1.8rem 0;
  font-size:.95rem;
}
.fb-note p:last-child{margin-bottom:0}
.fb-note h3{margin-top:0;font-size:1.05rem}

.fb-card{
  background:var(--card);
  border:1px solid var(--rule);
  border-radius:8px;
  padding:1.15rem 1.25rem;
  margin:1.8rem 0;
}
.fb-card h3{margin-top:0}
.fb-card p:last-child,.fb-card ul:last-child{margin-bottom:0}

/* ---------- tableau ---------- */
.fb-table-scroll{overflow-x:auto;margin:1.6rem 0}
table.fb-table{
  border-collapse:collapse;
  width:100%;
  font-size:.94rem;
  background:var(--card);
}
table.fb-table caption{
  caption-side:bottom;
  text-align:left;
  font-size:.85rem;
  color:var(--ink-faint);
  padding-top:.6rem;
}
table.fb-table th,table.fb-table td{
  border:1px solid var(--rule);
  padding:.55rem .7rem;
  text-align:left;
  vertical-align:top;
}
table.fb-table th{background:var(--rule-soft);font-weight:700}

/* ---------- figures ---------- */
figure.fb-fig{
  margin:2rem 0;
  background:var(--card);
  border:1px solid var(--rule);
  border-radius:8px;
  padding:1.1rem 1.1rem .9rem;
}
figure.fb-fig img{display:block;width:100%;height:auto}
figure.fb-fig figcaption{
  font-size:.86rem;
  color:var(--ink-faint);
  line-height:1.55;
  margin-top:.8rem;
  padding-top:.7rem;
  border-top:1px solid var(--rule-soft);
}

/* ---------- appels à l'action ---------- */
.fb-cta{margin:2rem 0}
.fb-btn{
  display:block;
  width:100%;
  background:var(--flag);
  color:#fff;
  font-family:var(--font-sans);
  font-size:1.03rem;
  font-weight:700;
  text-align:center;
  text-decoration:none;
  padding:.85rem 1.1rem .7rem;
  border:1px solid var(--flag);
  border-radius:7px;
  line-height:1.3;
}
.fb-btn:hover{background:#8d4818;color:#fff}
.fb-btn .fb-btn-tag{
  display:block;
  font-size:.72rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.1em;
  opacity:.92;
  margin-top:.3rem;
}
.fb-btn-outline{
  background:var(--card);
  color:var(--flag);
  border:1.5px solid var(--flag-mid);
}
.fb-btn-outline:hover{background:var(--flag-soft);color:var(--flag)}
.fb-cta-note{
  font-size:.83rem;
  line-height:1.5;
  color:var(--ink-faint);
  margin:.55rem 0 0;
}

/* ---------- colonne latérale ---------- */
.fb-rail{min-width:0;font-size:.95rem}
.fb-rail-stick{position:sticky;top:1.2rem}
.fb-rail .fb-box{
  background:var(--card);
  border:1px solid var(--rule);
  border-radius:8px;
  padding:1.05rem 1.1rem;
  margin-bottom:1.4rem;
}
.fb-rail h4{margin-top:0}
.fb-rail ol,.fb-rail ul{padding-left:1.2em;margin-bottom:0}
.fb-rail li{margin-bottom:.4em;font-size:.92rem}
.fb-rail a{color:var(--ink-soft);text-decoration:none}
.fb-rail a:hover{color:var(--accent);text-decoration:underline}
.fb-rail .fb-btn{font-size:.95rem}

/* ---------- pied de page ---------- */
.fb-foot{
  border-top:1px solid var(--rule);
  background:#f3f0ea;
  font-size:.88rem;
  line-height:1.6;
  color:var(--ink-soft);
}
.fb-foot-in{max-width:var(--wrap);margin:0 auto;padding:2rem 1.1rem 2.4rem}
.fb-foot-nav{
  display:flex;
  flex-wrap:wrap;
  gap:.4rem 1.2rem;
  padding:0 0 1rem;
  margin:0 0 1rem;
  border-bottom:1px solid var(--rule);
  list-style:none;
}
.fb-foot-nav a{color:var(--ink);text-decoration:none}
.fb-foot-nav a:hover{text-decoration:underline;color:var(--accent)}
.fb-foot-id{margin:0 0 .9rem}
.fb-foot-id b{color:var(--ink)}
.fb-foot p{margin:0 0 .7rem}
.fb-foot p:last-child{margin-bottom:0}
.fb-foot-legal{font-size:.82rem;color:var(--ink-faint)}

/* ---------- divers ---------- */
.fb-skip{
  position:absolute;left:-9999px;top:auto;
  background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:20;
}
.fb-skip:focus{left:.5rem;top:.5rem}
hr.fb-hr{border:0;border-top:1px solid var(--rule);margin:2.4rem 0}
.fb-updated{font-size:.85rem;color:var(--ink-faint)}
.fb-404{text-align:center;padding:3rem 0}
.fb-404 .fb-code{font-family:var(--font-serif);font-size:4.4rem;color:var(--accent);line-height:1;margin:0 0 .4rem}

a:focus-visible,.fb-btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

@media (max-width:980px){
  .fb-wrap{grid-template-columns:minmax(0,1fr);gap:1.6rem}
  .fb-rail-stick{position:static}
  .fb-main{max-width:none}
  h1{font-size:1.95rem}
}
@media (max-width:520px){
  body{font-size:16px}
  h1{font-size:1.7rem}
  h2{font-size:1.4rem}
  .fb-head-in{flex-direction:column;align-items:flex-start}
}
@media print{
  .fb-rail,.fb-nav,.fb-cta{display:none}
}