/* ==========================================================================
   البحري — feuille de style unique
   Tout le design du site est ici, à un seul endroit.
   Couleurs, en-tête, menu, pied de page, fiches et page d'accueil.
   ========================================================================== */

:root{
  --navy:#0b2f52;
  --navy-deep:#071f38;
  --cyan:#2fc4d8;
  --cyan-dark:#1899ab;
  --sand:#f4f8fa;
  --ink:#1c2b3a;
  --red:#d94f3d;
  --green:#2fa373;
  --card-radius:10px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:'Tajawal', Tahoma, 'Segoe UI', sans-serif;
  background:var(--sand);
  color:var(--ink);
  line-height:1.9;
}

/* ===== En-tête / menu ===== */
header{
  background:
    radial-gradient(ellipse at 20% 0%, rgba(47,196,216,.18), transparent 55%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
  color:#fff;
  position:sticky;top:0;z-index:50;
  box-shadow:0 2px 14px rgba(7,31,56,.35);
}
.header-inner{
  max-width:1100px;margin:0 auto;
  display:flex;align-items:center;gap:28px;
  padding:14px 20px;flex-wrap:wrap;
}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
.logo svg{flex-shrink:0}
.logo-name{
  font-family:'Aref Ruqaa', serif;
  font-size:2rem;line-height:1;letter-spacing:.5px;
}
nav{display:flex;gap:6px;flex-wrap:wrap;margin-inline-start:auto}
nav a{
  color:#dbe9f5;text-decoration:none;
  padding:8px 14px;border-radius:6px;
  font-weight:500;font-size:1rem;
  transition:background .2s,color .2s;
}
nav a:hover{background:rgba(255,255,255,.09);color:#fff}
nav a.active{color:var(--cyan);border-bottom:2px solid var(--cyan);border-radius:0}
.search{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.25);
  border-radius:6px;color:#fff;
  padding:7px 12px;font-family:inherit;font-size:.9rem;width:170px;
}
.search::placeholder{color:#b9cbdd}

/* ===== Boutons ===== */
.btn{
  background:var(--cyan);color:#fff;text-decoration:none;
  padding:9px 20px;border-radius:6px;font-weight:500;
  transition:background .2s;display:inline-block;
}
.btn:hover{background:var(--cyan-dark)}

/* ===== Fil d'Ariane ===== */
.crumbs{max-width:1100px;margin:0 auto;padding:18px 20px 0;font-size:.9rem;color:#6b7c8d}
.crumbs a{color:var(--cyan-dark);text-decoration:none}
.crumbs a:hover{text-decoration:underline}

/* ==========================================================================
   PAGE D'ACCUEIL
   ========================================================================== */
.hero{
  background:linear-gradient(180deg, var(--navy-deep) 0%, #0d3a63 100%);
  color:#fff;overflow:hidden;position:relative;
}
.hero-inner{
  max-width:1100px;margin:0 auto;padding:64px 20px 80px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.hero h1{font-family:'Aref Ruqaa', serif;font-size:3rem;color:var(--cyan);margin-bottom:6px}
.hero h2{font-size:1.35rem;font-weight:700;margin-bottom:20px}
.hero p{color:#cfe0ef;margin-bottom:14px;max-width:52ch}
.hero-visual{
  aspect-ratio:4/3;border-radius:var(--card-radius);overflow:hidden;
  border:1px solid rgba(255,255,255,.15);
  background:
    linear-gradient(160deg, rgba(47,196,216,.25), rgba(11,47,82,.6)),
    repeating-linear-gradient(45deg, #10456f 0 14px, #0d3a63 14px 28px);
  display:flex;align-items:center;justify-content:center;
  color:#9fc3dd;font-size:.95rem;text-align:center;padding:20px;
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.waves{display:block;width:100%;height:60px;position:absolute;bottom:-1px;inset-inline:0}

section{max-width:1100px;margin:0 auto;padding:56px 20px}
.section-title{font-family:'Aref Ruqaa', serif;font-size:2rem;color:var(--navy);margin-bottom:8px}
.section-sub{color:#5a6b7c;margin-bottom:32px}

.cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.cat{
  background:#fff;border-radius:var(--card-radius);padding:18px 14px;text-align:center;
  border:1px solid #e2ebf2;text-decoration:none;
  transition:transform .2s, box-shadow .2s;cursor:pointer;
}
.cat:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(11,47,82,.12)}
.cat .icon{font-size:1.9rem;display:block;margin-bottom:8px}
.cat b{color:var(--navy);display:block;font-size:1.05rem}
.cat span{color:#7a8a99;font-size:.85rem}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:22px}
.card{
  background:#fff;border-radius:var(--card-radius);overflow:hidden;
  border:1px solid #e2ebf2;display:flex;flex-direction:column;
  transition:transform .2s, box-shadow .2s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(11,47,82,.14)}
.card .img{
  aspect-ratio:4/3;
  background:linear-gradient(150deg,#cfe6ef,#8fc3d8 60%,#5aa3c2);
  display:flex;align-items:center;justify-content:center;
  color:#255a74;font-size:.85rem;overflow:hidden;
}
.card .img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-body h3{font-family:'Aref Ruqaa', serif;color:var(--cyan-dark);font-size:1.35rem}
.card-body h3 a{color:inherit;text-decoration:none}
.meta{font-size:.82rem;color:#7a8a99}
.card .btn{margin-top:auto;align-self:flex-start;padding:8px 18px;font-size:.9rem}

/* ==========================================================================
   FICHE D'UNE ESPÈCE
   ========================================================================== */
.sheet{max-width:1100px;margin:0 auto;padding:22px 20px 60px}
.sheet-head{margin-bottom:26px}
.sheet-head h1{font-family:'Aref Ruqaa', serif;font-size:2.8rem;color:var(--navy);line-height:1.3}
.names{display:flex;gap:10px;flex-wrap:wrap;align-items:baseline;margin-top:6px}
.name-fr{font-size:1.15rem;color:#4a5c6e;font-weight:500}
.name-sci{font-style:italic;color:#7a8a99}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.badge{
  background:#e4f4f7;color:var(--cyan-dark);border:1px solid #bfe6ec;
  padding:4px 12px;border-radius:999px;font-size:.85rem;font-weight:500;
}
.badge.date{background:#eef3f7;color:#6b7c8d;border-color:#dde6ee}

.layout{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:start}

.gallery{display:flex;flex-direction:column;gap:12px}
.photo{background:#fff;border:1px solid #e2ebf2;border-radius:var(--card-radius);overflow:hidden}
.photo .frame{
  aspect-ratio:4/3;
  background:linear-gradient(150deg,#cfe6ef,#8fc3d8 60%,#5aa3c2);
  display:flex;align-items:center;justify-content:center;
  color:#1f4e66;font-size:.9rem;text-align:center;padding:16px;overflow:hidden;
}
.photo .frame img{width:100%;height:100%;object-fit:cover}
.photo .credit{padding:8px 14px;font-size:.78rem;color:#8593a1;border-top:1px solid #eef3f7}
.photo .credit a{color:var(--cyan-dark)}
.thumbs{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.thumbs .frame{aspect-ratio:4/3;font-size:.8rem}

.facts{background:#fff;border:1px solid #e2ebf2;border-radius:var(--card-radius);overflow:hidden}
.facts h2{
  font-family:'Aref Ruqaa', serif;font-size:1.4rem;color:var(--navy);
  padding:16px 20px 12px;border-bottom:1px solid #eef3f7;
}
.facts dl{display:grid;grid-template-columns:auto 1fr;gap:0}
.facts dt{
  padding:12px 20px;font-weight:700;color:var(--cyan-dark);
  border-bottom:1px solid #f2f6f9;white-space:nowrap;background:#fbfdfe;
}
.facts dd{padding:12px 20px;border-bottom:1px solid #f2f6f9;color:#33475b}
.facts dt:last-of-type,.facts dd:last-of-type{border-bottom:none}

/* ===== Bannières signalétiques — convention à trois niveaux ===== */
.banner{margin-top:14px;border-radius:8px;padding:14px 18px;font-size:.95rem}
.banner-danger{
  background:#fdf1ef;border:1px solid #f3cfc8;
  border-inline-start:4px solid var(--red);color:#8c3527;
}
.banner-protect{
  background:#e9f8fb;border:1px solid #bfe6ec;
  border-inline-start:4px solid var(--cyan-dark);color:#0f5f6b;
}
.banner-safe{
  background:#eef7f1;border:1px solid #cfe8d8;
  border-inline-start:4px solid var(--green);color:#1f6a47;
}

/* ===== حكاية الاسم — élément signature ===== */
.story{
  margin-top:38px;background:linear-gradient(180deg,#0b2f52,#071f38);
  color:#e8f2f9;border-radius:var(--card-radius);
  padding:34px 34px 30px;position:relative;overflow:hidden;
}
.story::after{
  content:"";position:absolute;inset-inline-start:-40px;bottom:-60px;
  width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,196,216,.22),transparent 70%);
}
.story h2{font-family:'Aref Ruqaa', serif;font-size:1.8rem;color:var(--cyan);margin-bottom:4px}
.story .lead{color:#9fbdd4;font-size:.92rem;margin-bottom:20px}
.story p{max-width:70ch;margin-bottom:14px;position:relative;z-index:1}
.lang-list{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:12px;margin:22px 0 6px;position:relative;z-index:1;
}
.lang{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:8px;padding:12px 16px}
.lang b{display:block;color:var(--cyan);font-size:1.05rem}
.lang span{font-size:.85rem;color:#a9c4da}

/* ===== القصة — texte libre ===== */
.prose{
  margin-top:38px;background:#fff;border:1px solid #e2ebf2;
  border-radius:var(--card-radius);padding:30px 34px;
}
.prose h2{font-family:'Aref Ruqaa', serif;font-size:1.6rem;color:var(--navy);margin-bottom:14px}
.prose p{margin-bottom:14px;max-width:72ch}
.empty{
  border:1px dashed #c9d8e4;border-radius:8px;padding:18px 20px;
  color:#7a8a99;background:#fbfdfe;font-size:.95rem;
}

/* ===== Bande de contribution ===== */
.contribute{
  background:var(--navy);color:#fff;border-radius:var(--card-radius);
  padding:36px 32px;display:flex;align-items:center;gap:24px;flex-wrap:wrap;
}
.contribute h2{font-family:'Aref Ruqaa', serif;font-size:1.5rem;margin-bottom:6px}
.contribute p{color:#cfe0ef;max-width:60ch}
.contribute .btn{background:var(--red);margin-inline-start:auto}
.contribute .btn:hover{background:#b93e2e}

footer{
  background:var(--navy-deep);color:#9db4c8;
  text-align:center;padding:26px 20px;font-size:.9rem;margin-top:40px;
}

/* ===== Adaptation mobile ===== */
@media (max-width:820px){
  .hero-inner{grid-template-columns:1fr;padding:44px 20px 70px}
  .hero h1{font-size:2.3rem}
  .layout{grid-template-columns:1fr;gap:26px}
  .sheet-head h1{font-size:2.1rem}
  .story{padding:26px 22px}
  .prose{padding:24px 22px}
  nav{margin-inline-start:0}
  .search{width:100%}
  .contribute .btn{margin-inline-start:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important}
}