/* ===== موسوعة النجاح — المنصة التعليمية الجزائرية ===== */
/* IBM Plex Sans Arabic — self-hosted via fontsource */
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-arabic-400-normal.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0898-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-latin-400-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-arabic-500-normal.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+FB50-FDFF,U+FE70-FEFC}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-latin-500-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-arabic-600-normal.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+FB50-FDFF,U+FE70-FEFC}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-latin-600-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-arabic-700-normal.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+FB50-FDFF,U+FE70-FEFC}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/ibm-plex-sans-arabic-latin-700-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+2000-206F}

:root{
  --bg:#f6f8fb; --bg2:#ffffff; --ink:#101828; --ink2:#475467; --ink3:#98a2b3;
  --brand:#0e7a5f; --brand2:#0a5c48; --brand-soft:#e6f4f0;
  --gold:#d4a017; --line:#e4e7ec;
  --bac:#7c3aed; --bac-soft:#f3eefe;
  --bem:#0369a1; --bem-soft:#e8f4fb;
  --cinq:#c2410c; --cinq-soft:#fdf0e7;
  --radius:16px; --shadow:0 1px 3px rgba(16,24,40,.06),0 8px 24px -12px rgba(16,24,40,.12);
  --shadow-lg:0 4px 12px rgba(16,24,40,.08),0 20px 48px -16px rgba(16,24,40,.2);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'IBM Plex Sans Arabic',system-ui,sans-serif;
  background:var(--bg); color:var(--ink);
  line-height:1.7; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
img{max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.topbar{background:var(--brand2);color:#d9efe8;font-size:.8rem;padding:6px 0;text-align:center}
header.site{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem}
.logo svg{flex-shrink:0}
.logo small{display:block;font-weight:400;font-size:.68rem;color:var(--ink2);line-height:1.2}
.nav-links{display:flex;gap:4px;margin-inline-start:auto}
.nav-links a{padding:8px 14px;border-radius:10px;font-size:.92rem;font-weight:500;color:var(--ink2);transition:.15s}
.nav-links a:hover,.nav-links a.active{background:var(--brand-soft);color:var(--brand)}
.menu-btn{display:none;font-size:1.4rem;color:var(--ink)}

/* ===== Hero ===== */
.hero{
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(14,122,95,.14), transparent 60%),
    radial-gradient(800px 400px at 10% 110%, rgba(212,160,23,.10), transparent 60%),
    linear-gradient(180deg,#fff, var(--bg));
  padding:72px 0 56px; text-align:center; position:relative; overflow:hidden;
}
.hero h1{font-size:clamp(1.7rem,4.5vw,2.9rem);font-weight:700;line-height:1.35;max-width:820px;margin:0 auto 16px}
.hero h1 em{font-style:normal;color:var(--brand);position:relative}
.hero p.sub{max-width:640px;margin:0 auto 32px;color:var(--ink2);font-size:1.05rem}
.hero-stats{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:38px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 26px;box-shadow:var(--shadow);min-width:150px}
.stat b{display:block;font-size:1.5rem;color:var(--brand)}
.stat span{font-size:.82rem;color:var(--ink2)}
.search-hero{max-width:620px;margin:0 auto;position:relative}
.search-hero input{
  width:100%;padding:16px 52px 16px 20px;border-radius:99px;border:1.5px solid var(--line);
  font-family:inherit;font-size:1rem;background:#fff;box-shadow:var(--shadow);outline:none;transition:.2s;
}
.search-hero input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(14,122,95,.12)}
.search-hero .icon{position:absolute;top:50%;transform:translateY(-50%);inset-inline-start:20px;color:var(--ink3);pointer-events:none}

/* ===== Level cards ===== */
.levels{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:-30px;position:relative;z-index:2}
.level-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px 24px;
  box-shadow:var(--shadow);transition:.2s;display:block;
}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.level-card .badge{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;padding:4px 12px;border-radius:99px;margin-bottom:14px}
.level-card h3{font-size:1.25rem;margin-bottom:6px}
.level-card p{color:var(--ink2);font-size:.9rem}
.level-card .arrow{margin-top:16px;font-weight:600;font-size:.88rem;display:inline-flex;align-items:center;gap:6px}
.lc-bac .badge{background:var(--bac-soft);color:var(--bac)} .lc-bac .arrow{color:var(--bac)}
.lc-bem .badge{background:var(--bem-soft);color:var(--bem)} .lc-bem .arrow{color:var(--bem)}
.lc-cinq .badge{background:var(--cinq-soft);color:var(--cinq)} .lc-cinq .arrow{color:var(--cinq)}

/* ===== Sections ===== */
section.block{padding:56px 0}
.sec-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.sec-head h2{font-size:1.55rem;font-weight:700}
.sec-head p{color:var(--ink2);font-size:.92rem;margin-top:4px}
.sec-head .more{color:var(--brand);font-weight:600;font-size:.9rem;white-space:nowrap}

/* ===== Filters ===== */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.chip{
  padding:7px 16px;border-radius:99px;border:1.5px solid var(--line);background:#fff;
  font-size:.86rem;font-weight:500;color:var(--ink2);transition:.15s;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
select.chip{appearance:none;padding-inline-end:30px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23475467' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:left 12px center}

/* ===== Resource cards ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.res-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  display:flex;flex-direction:column;gap:10px;transition:.18s;position:relative;
}
.res-card:hover{border-color:#c9d2dc;box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.res-top{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.tag{font-size:.7rem;font-weight:600;padding:3px 10px;border-radius:99px}
.tag.lvl-bac{background:var(--bac-soft);color:var(--bac)}
.tag.lvl-bem{background:var(--bem-soft);color:var(--bem)}
.tag.lvl-cinq{background:var(--cinq-soft);color:var(--cinq)}
.tag.type{background:#f2f4f7;color:var(--ink2)}
.res-card h4{font-size:.95rem;font-weight:600;line-height:1.55;flex:1}
.res-meta{font-size:.78rem;color:var(--ink3)}
.res-actions{display:flex;gap:8px;margin-top:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:9px 16px;border-radius:11px;font-size:.85rem;font-weight:600;transition:.15s;
}
.btn-pdf{background:var(--brand);color:#fff;flex:1}
.btn-pdf:hover{background:var(--brand2)}
.btn-ghost{background:#f2f4f7;color:var(--ink2)}
.btn-ghost:hover{background:#e7eaef}

/* ===== Video cards ===== */
.vid-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:.18s;display:flex;flex-direction:column;
}
.vid-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.thumb{position:relative;aspect-ratio:16/9;background:#0f172a;display:block}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb .dur{position:absolute;bottom:8px;inset-inline-start:8px;background:rgba(0,0,0,.8);color:#fff;font-size:.72rem;padding:2px 8px;border-radius:6px;font-weight:500}
.thumb .play{
  position:absolute;inset:0;display:grid;place-items:center;
  background:linear-gradient(transparent 55%,rgba(0,0,0,.45));opacity:0;transition:.2s;
}
.vid-card:hover .play{opacity:1}
.play span{width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center;color:var(--brand);font-size:1.2rem;padding-inline-start:4px}
.vid-body{padding:14px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.vid-body h4{font-size:.9rem;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.vid-meta{display:flex;align-items:center;gap:8px;font-size:.76rem;color:var(--ink3);flex-wrap:wrap}
.vid-meta .ch{color:var(--brand);font-weight:600}

/* ===== Teachers ===== */
.teachers-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.teacher{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;gap:12px;align-items:center;transition:.15s}
.teacher:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.teacher .avatar{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:1.05rem;flex-shrink:0}
.teacher b{font-size:.88rem;display:block;line-height:1.4}
.teacher span{font-size:.74rem;color:var(--ink3)}

/* ===== Sources ===== */
.sources-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.source{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;transition:.15s;display:block}
.source:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-2px)}
.source b{display:flex;align-items:center;gap:8px;font-size:.95rem}
.source p{font-size:.8rem;color:var(--ink2);margin-top:6px}
.source .url{font-size:.75rem;color:var(--brand);direction:ltr;text-align:right;display:block;margin-top:8px}

/* ===== Pagination / load more ===== */
.load-wrap{text-align:center;margin-top:28px}
.btn-load{background:#fff;border:1.5px solid var(--line);padding:12px 34px;border-radius:99px;font-weight:600;font-size:.9rem;color:var(--ink2);transition:.15s}
.btn-load:hover{border-color:var(--brand);color:var(--brand)}
.count-info{font-size:.82rem;color:var(--ink3);margin-top:10px}

/* ===== Empty state ===== */
.empty{text-align:center;padding:60px 20px;color:var(--ink3)}
.empty svg{margin-bottom:12px;opacity:.5}

/* ===== Footer ===== */
footer.site{background:#0d1b2a;color:#94a3b8;padding:52px 0 28px;margin-top:40px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
footer h5{color:#fff;font-size:.95rem;margin-bottom:14px}
footer a{display:block;font-size:.85rem;padding:4px 0;transition:.15s}
footer a:hover{color:#fff}
footer .brand-f{color:#fff;font-weight:700;font-size:1.1rem;margin-bottom:10px;display:flex;align-items:center;gap:8px}
footer .fine{border-top:1px solid #1e3348;padding-top:20px;font-size:.78rem;text-align:center}

/* ===== Chat widget ===== */
.chat-fab{
  position:fixed;bottom:22px;inset-inline-start:22px;z-index:99;
  width:60px;height:60px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;box-shadow:0 8px 28px rgba(14,122,95,.45);transition:.2s;
}
.chat-fab:hover{transform:scale(1.07)}
.chat-fab .dot{position:absolute;top:4px;inset-inline-end:4px;width:12px;height:12px;border-radius:50%;background:var(--gold);border:2px solid #fff}
.chat-box{
  position:fixed;bottom:94px;inset-inline-start:22px;z-index:99;
  width:min(384px,calc(100vw - 44px));height:min(560px,calc(100vh - 130px));
  background:#fff;border-radius:20px;box-shadow:var(--shadow-lg),0 0 0 1px var(--line);
  display:flex;flex-direction:column;overflow:hidden;
  opacity:0;pointer-events:none;transform:translateY(14px) scale(.97);transition:.22s;
}
.chat-box.open{opacity:1;pointer-events:auto;transform:none}
.chat-head{background:var(--brand);color:#fff;padding:16px 18px;display:flex;align-items:center;gap:12px}
.chat-head .bot-av{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.18);display:grid;place-items:center}
.chat-head b{font-size:.95rem;display:block}
.chat-head small{font-size:.72rem;opacity:.85}
.chat-head .close{margin-inline-start:auto;color:#fff;font-size:1.15rem;opacity:.8}
.chat-msgs{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:#f8fafc}
.msg{max-width:85%;padding:10px 14px;border-radius:16px;font-size:.86rem;line-height:1.65;white-space:pre-wrap;word-break:break-word}
.msg.bot{background:#fff;border:1px solid var(--line);border-start-end-radius:4px;align-self:flex-start}
.msg.user{background:var(--brand);color:#fff;border-start-start-radius:4px;align-self:flex-end}
.msg a{color:var(--brand);font-weight:600;text-decoration:underline}
.msg.user a{color:#fff}
.msg .res-link{
  display:flex;align-items:center;gap:8px;background:var(--brand-soft);border:1px solid #cde8df;
  border-radius:10px;padding:8px 12px;margin-top:8px;font-size:.8rem;font-weight:600;color:var(--brand2);text-decoration:none;
}
.typing{display:inline-flex;gap:4px;padding:12px 16px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--ink3);animation:tp 1.2s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes tp{0%,60%,100%{transform:none;opacity:.4}30%{transform:translateY(-5px);opacity:1}}
.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:#fff}
.chat-input textarea{
  flex:1;border:1.5px solid var(--line);border-radius:12px;padding:10px 14px;font-family:inherit;
  font-size:.88rem;resize:none;outline:none;max-height:96px;transition:.15s;
}
.chat-input textarea:focus{border-color:var(--brand)}
.chat-input button{
  width:44px;height:44px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;flex-shrink:0;transition:.15s;
}
.chat-input button:disabled{opacity:.5;cursor:default}
.chat-hint{font-size:.68rem;color:var(--ink3);text-align:center;padding:0 12px 8px;background:#fff}

/* ===== Video modal ===== */
.vmodal{position:fixed;inset:0;z-index:120;background:rgba(10,15,26,.82);display:none;place-items:center;padding:20px}
.vmodal.open{display:grid}
.vmodal .inner{width:min(940px,100%);aspect-ratio:16/9;background:#000;border-radius:16px;overflow:hidden;position:relative}
.vmodal iframe{width:100%;height:100%;border:0}
.vmodal .vclose{position:absolute;top:-42px;inset-inline-end:0;color:#fff;font-size:1.5rem}
.vmodal .frame-wrap{position:relative}

/* ===== Page hero (subpages) ===== */
.page-hero{padding:44px 0 34px;border-bottom:1px solid var(--line);background:#fff}
.page-hero h1{font-size:1.7rem}
.page-hero p{color:var(--ink2);margin-top:6px;max-width:640px}
.crumb{font-size:.8rem;color:var(--ink3);margin-bottom:10px}
.crumb a{color:var(--brand)}

@media (max-width:900px){
  footer .cols{grid-template-columns:1fr 1fr}
  .levels{grid-template-columns:1fr}
  .nav-links{
    display:none;position:absolute;top:68px;inset-inline:0;background:#fff;
    flex-direction:column;padding:12px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);
  }
  .nav-links.open{display:flex}
  .menu-btn{display:block;margin-inline-start:auto}
}