/* ==========================================================================
   INSAPT — Institut National de Santé Publique du Tchad
   Design language: Chadian flag (bleu #002664, or #FECB00, rouge #C60C30)
   Sober institutional palette, deep navy base, gold as the single accent.
   ========================================================================== */

:root{
  /* Flag-derived core */
  --tchad-blue:  #002664;   /* hoist band  */
  --tchad-gold:  #FECB00;   /* centre band */
  --tchad-red:   #C60C30;   /* fly band    */

  /* Working palette */
  --navy-900:#031a3d;
  --navy-800:#052a5e;
  --navy-700:#0a3a7a;
  --navy-050:#eef3fb;
  --ink:#14213d;
  --slate:#4a5875;
  --line:#dfe6f1;
  --paper:#ffffff;
  --wash:#f5f8fd;
  --gold-soft:#fff4c9;
  --red-soft:#fbe3e8;
  --ok:#1a7f5a;
  --warn:#b5701a;

  --shadow-sm:0 1px 2px rgba(3,26,61,.06),0 1px 3px rgba(3,26,61,.08);
  --shadow-md:0 4px 16px rgba(3,26,61,.10);
  --shadow-lg:0 18px 48px rgba(3,26,61,.18);
  --radius:14px;
  --radius-sm:9px;

  --ff-display:"Libre Franklin","Segoe UI",system-ui,sans-serif;
  --ff-body:"Inter","Segoe UI",system-ui,sans-serif;
  --ff-ar:"Noto Naskh Arabic","Amiri",serif;

  --maxw:1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--ff-body);color:var(--ink);
  background:var(--paper);line-height:1.62;font-size:16.5px;
  -webkit-font-smoothing:antialiased;
}
body[dir="rtl"]{font-family:var(--ff-ar);letter-spacing:0}
h1,h2,h3,h4{font-family:var(--ff-display);color:var(--navy-900);line-height:1.18;font-weight:800;margin:0 0 .5em}
a{color:var(--navy-700);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- Top utility strip ---------- */
.utility{background:var(--navy-900);color:#cdd9ee;font-size:13px}
.utility .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:38px;flex-wrap:wrap}
.utility a{color:#e6eeff}
.util-left{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.util-left span{display:inline-flex;gap:7px;align-items:center;opacity:.9}
.lang-switch{display:flex;gap:4px;align-items:center}
.lang-switch button{
  background:transparent;border:1px solid rgba(255,255,255,.28);color:#e6eeff;
  font:600 12px/1 var(--ff-body);padding:5px 10px;border-radius:20px;cursor:pointer;letter-spacing:.03em}
.lang-switch button[aria-pressed="true"]{background:var(--tchad-gold);color:var(--navy-900);border-color:var(--tchad-gold)}

/* Flag ribbon under utility strip */
.flag-ribbon{height:4px;display:flex}
.flag-ribbon i{flex:1}
.flag-ribbon i:nth-child(1){background:var(--tchad-blue)}
.flag-ribbon i:nth-child(2){background:var(--tchad-gold)}
.flag-ribbon i:nth-child(3){background:var(--tchad-red)}

/* ---------- Masthead ---------- */
.masthead{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.masthead .wrap{display:flex;align-items:center;gap:18px;min-height:84px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.crest{
  width:52px;height:52px;border-radius:12px;flex:0 0 auto;
  background:
    linear-gradient(135deg,var(--tchad-blue) 0 33%,var(--tchad-gold) 33% 66%,var(--tchad-red) 66% 100%);
  display:grid;place-items:center;color:#fff;font:900 15px/1 var(--ff-display);
  box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.crest span{background:rgba(3,26,61,.86);padding:6px 7px;border-radius:7px;letter-spacing:.02em}
.brand-txt strong{display:block;font-family:var(--ff-display);font-weight:800;font-size:18px;color:var(--navy-900);letter-spacing:-.01em}
.brand-txt small{display:block;color:var(--slate);font-size:12.5px;margin-top:1px}
.mast-spacer{flex:1}
.mast-cta{display:flex;gap:10px;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:8px;font:700 14px/1 var(--ff-body);
  padding:11px 18px;border-radius:24px;border:1.5px solid transparent;cursor:pointer;transition:.15s}
.btn-primary{background:var(--navy-800);color:#fff}
.btn-primary:hover{background:var(--navy-900);text-decoration:none}
.btn-gold{background:var(--tchad-gold);color:var(--navy-900)}
.btn-gold:hover{background:#ffd733;text-decoration:none}
.btn-ghost{background:#fff;color:var(--navy-800);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--navy-700);text-decoration:none}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--navy-900);margin:5px 0;transition:.2s}

/* ---------- Primary nav ---------- */
.nav{background:var(--navy-800);position:sticky;top:84px;z-index:55}
.nav .wrap{display:flex;gap:2px;flex-wrap:wrap}
.nav a{
  color:#dbe6fb;font:600 14.5px/1 var(--ff-body);padding:15px 16px;
  display:inline-flex;align-items:center;gap:7px;border-bottom:3px solid transparent}
.nav a:hover{background:var(--navy-700);text-decoration:none;color:#fff}
.nav a.active{color:#fff;border-bottom-color:var(--tchad-gold);background:var(--navy-900)}
.nav a.scm{margin-inline-start:auto;background:var(--tchad-red);color:#fff}
.nav a.scm:hover{background:#a80a28}

/* ---------- Hero ---------- */
.hero{position:relative;background:
    radial-gradient(1100px 500px at 78% -10%,rgba(254,203,0,.16),transparent 60%),
    linear-gradient(180deg,var(--navy-900),var(--navy-800));
  color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px}
.hero .wrap{position:relative;z-index:2;padding:70px 22px 78px;display:grid;grid-template-columns:1.35fr .95fr;gap:44px;align-items:center}
.hero .eyebrow{display:inline-flex;gap:9px;align-items:center;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);padding:7px 14px;border-radius:30px;font:700 12.5px/1 var(--ff-body);
  letter-spacing:.08em;text-transform:uppercase;color:var(--tchad-gold)}
.hero h1{color:#fff;font-size:clamp(30px,4.4vw,50px);letter-spacing:-.015em;margin:20px 0 16px}
.hero h1 em{font-style:normal;color:var(--tchad-gold)}
.hero p.lead{font-size:19px;color:#d6e2f7;max-width:44ch;margin:0 0 26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:18px;padding:24px;backdrop-filter:blur(4px)}
.hero-card h3{color:#fff;font-size:15px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.pole-list{display:flex;flex-direction:column;gap:12px}
.pole-list a{display:flex;gap:13px;align-items:flex-start;color:#eaf1ff;padding:11px 12px;border-radius:11px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);transition:.15s}
.pole-list a:hover{background:rgba(255,255,255,.1);text-decoration:none;transform:translateX(3px)}
body[dir="rtl"] .pole-list a:hover{transform:translateX(-3px)}
.pole-list .tag{flex:0 0 auto;width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  font:800 13px/1 var(--ff-display);background:var(--tchad-gold);color:var(--navy-900)}
.pole-list b{display:block;font-size:14.5px;color:#fff}
.pole-list small{color:#b9c8e6;font-size:12.5px}

/* ---------- Stat band ---------- */
.stats{background:var(--wash);border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:34px 22px}
.stat{padding-inline-start:16px;border-inline-start:3px solid var(--tchad-gold)}
.stat b{display:block;font:800 30px/1 var(--ff-display);color:var(--navy-900)}
.stat span{color:var(--slate);font-size:13.5px}

/* ---------- Sections ---------- */
section.block{padding:64px 0}
section.block.alt{background:var(--wash)}
.sec-head{max-width:70ch;margin-bottom:34px}
.sec-head .kicker{font:700 12.5px/1 var(--ff-body);letter-spacing:.1em;text-transform:uppercase;color:var(--tchad-red);display:block;margin-bottom:10px}
.sec-head h2{font-size:clamp(24px,3vw,34px)}
.sec-head p{color:var(--slate);font-size:17px;margin:.5em 0 0}

.grid{display:grid;gap:22px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}

.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:.18s}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--navy-050);color:var(--navy-800);
  display:grid;place-items:center;margin-bottom:16px;font-size:22px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--slate);margin:0;font-size:15px}
.card.pole{border-top:4px solid var(--tchad-gold)}
.card .chip{display:inline-block;font:700 11px/1 var(--ff-body);letter-spacing:.06em;text-transform:uppercase;
  background:var(--gold-soft);color:var(--warn);padding:5px 9px;border-radius:20px;margin-bottom:12px}

/* Mission list */
.mission{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 30px;list-style:none;padding:0;margin:0}
.mission li{display:flex;gap:13px;align-items:flex-start;font-size:15.5px;color:var(--ink)}
.mission li::before{content:"";flex:0 0 auto;width:9px;height:9px;border-radius:2px;margin-top:8px;
  background:var(--tchad-red)}

/* ---------- Leadership ---------- */
.people{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.person{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.person .photo{aspect-ratio:4/5;background:
    linear-gradient(160deg,var(--navy-050),#dbe6fa);
  display:grid;place-items:center;color:var(--navy-700);position:relative}
.person .photo .ini{font:800 42px/1 var(--ff-display);opacity:.55}
.person .photo::after{content:"Photo à venir";position:absolute;bottom:10px;font-size:11px;color:var(--slate);letter-spacing:.04em}
body[dir="rtl"] .person .photo::after{content:"صورة قادمة"}
body[data-lang="en"] .person .photo::after{content:"Photo coming soon"}
.person .body{padding:18px 20px}
.person .role{font:700 11.5px/1 var(--ff-body);text-transform:uppercase;letter-spacing:.07em;color:var(--tchad-red);margin-bottom:6px}
.person h3{font-size:18px;margin-bottom:4px}
.person small{color:var(--slate);display:block;font-size:13px}

/* ---------- Documents ---------- */
.doc-list{display:grid;gap:12px}
.doc{display:flex;gap:16px;align-items:center;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:16px 18px;transition:.15s}
.doc:hover{border-color:var(--navy-700);box-shadow:var(--shadow-sm)}
.doc .ficon{flex:0 0 auto;width:44px;height:44px;border-radius:10px;background:var(--red-soft);color:var(--tchad-red);
  display:grid;place-items:center;font:800 12px/1 var(--ff-display)}
.doc .meta{flex:1}
.doc .meta b{display:block;color:var(--navy-900);font-size:15.5px}
.doc .meta small{color:var(--slate)}

/* ---------- News ---------- */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.18s}
.post:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.post .cover{aspect-ratio:16/9;background:linear-gradient(135deg,var(--navy-800),var(--navy-700));position:relative}
.post .cover span{position:absolute;inset:auto auto 12px 12px;background:var(--tchad-gold);color:var(--navy-900);
  font:700 11px/1 var(--ff-body);padding:6px 10px;border-radius:6px;text-transform:uppercase;letter-spacing:.04em}
body[dir="rtl"] .post .cover span{inset:auto 12px 12px auto}
.post .body{padding:20px}
.post .date{color:var(--slate);font-size:12.5px;text-transform:uppercase;letter-spacing:.05em}
.post h3{font-size:18px;margin:8px 0}
.post p{color:var(--slate);font-size:14.5px;margin:0}

/* ---------- Footer ---------- */
footer.site{background:var(--navy-900);color:#c3d2ee;padding:52px 0 0}
footer.site .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
footer.site h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
footer.site a{color:#c3d2ee;display:block;padding:5px 0;font-size:14px}
footer.site a:hover{color:#fff}
footer.site .about p{font-size:14px;max-width:38ch}
footer.site .crest{margin-bottom:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding:18px 0;font-size:13px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#8ea3c9}

/* ---------- Language visibility ---------- */
[data-i18n]{}
.only-print{display:none}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .hero .wrap{grid-template-columns:1fr;gap:30px}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .grid.c3,.grid.c4,.people,.news,.mission{grid-template-columns:1fr 1fr}
  footer.site .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .nav{top:70px}
  .masthead .wrap{min-height:70px}
  .nav .wrap{display:none;flex-direction:column;background:var(--navy-800);padding:8px 0}
  .nav.open .wrap{display:flex}
  .nav a.scm{margin-inline-start:0}
  .burger{display:block}
  .mast-cta .btn:not(.burger){display:none}
  .grid.c2,.grid.c3,.grid.c4,.people,.news,.mission{grid-template-columns:1fr}
  .stats .wrap{grid-template-columns:1fr 1fr}
  .hero .wrap{padding:48px 22px 54px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}