/* ===== هوية ملتقى الذكاء الاصطناعي في التعليم التطبيقي ===== */
:root{
  --navy:#0f3a60;--navy2:#0a2a47;--blue:#1d6aa5;--sky:#5aa9dc;--ice:#eaf3fb;--ice2:#f6fafe;--line:#d4e3f1;
  --gold:#c9a14a;--gold2:#e6c477;--olive:#76893a;--text:#183552;--muted:#5f7a96;--white:#fff;
  --green:#1f9d63;--red:#c8414f;--shadow:0 18px 50px rgba(15,58,96,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Tajawal","Segoe UI",Tahoma,sans-serif;color:var(--text);background:var(--ice2);line-height:1.65;font-size:16px}
a{color:var(--blue);text-decoration:none}
img{max-width:100%}
.wrap{max-width:1220px;margin:0 auto;padding:0 18px}
.muted{color:var(--muted)} .small{font-size:13px}
.green{color:var(--green)} .red{color:var(--red)}

/* top bar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:12px;margin-inline-end:auto;color:var(--navy)}
.brand img{height:52px;width:auto}
.brand span{display:flex;flex-direction:column;line-height:1.25}
.brand b{font-size:16px;font-weight:900}
.brand small{color:var(--muted);font-size:12px}
nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
nav a{color:var(--navy);font-weight:700;padding:8px 12px;border-radius:10px;font-size:15px}
nav a:hover{background:var(--ice)}
@media (max-width:760px){nav a.hide-sm{display:none}.brand small{display:none}.brand img{height:42px}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:12px 22px;font:inherit;font-weight:800;cursor:pointer;transition:.18s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:linear-gradient(180deg,#2478b8,#155a91);color:#fff;box-shadow:0 10px 26px rgba(29,106,165,.35)}
.btn.gold{background:linear-gradient(180deg,#e9c97c,#c39236);color:#2b1c00;box-shadow:0 10px 26px rgba(201,161,74,.4)}
.btn.green{background:linear-gradient(180deg,#2bb777,#178553);color:#fff}
.btn.danger{background:#fbe8ea;color:var(--red);border:1px solid #f1c3c8}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--line)}
.btn.sm{padding:6px 12px;border-radius:10px;font-size:13px}
.btn.big{font-size:20px;padding:16px 34px;border-radius:18px}
.btn.wide{width:100%}

/* hero */
.hero{position:relative;overflow:hidden;padding:46px 0 70px;background:
  linear-gradient(180deg,rgba(246,250,254,.25),rgba(246,250,254,.92) 78%,var(--ice2)),url("banner_bg.jpg") center 40%/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 360px at 50% 20%,rgba(255,255,255,.95),transparent 70%);pointer-events:none}
.hero .wrap{position:relative;text-align:center}
.ornament{display:flex;align-items:center;justify-content:center;gap:14px;color:var(--gold)}
.ornament i{flex:1;max-width:260px;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent);position:relative}
.ornament i::after{content:"";position:absolute;top:-4px;width:10px;height:10px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#fff3cf,var(--gold));left:50%;transform:translateX(-50%)}
.hero h1{margin:6px 0;font-size:clamp(28px,5vw,54px);font-weight:900;color:var(--navy);letter-spacing:-.5px;text-shadow:0 2px 0 #fff}
.hero h1 em{font-style:normal;color:var(--blue)}
.logo-card{display:inline-flex;align-items:center;gap:0;margin:22px auto 8px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:26px;padding:16px 10px;box-shadow:var(--shadow);flex-wrap:wrap;justify-content:center}
.logo-card .lg{padding:4px 26px;display:flex;align-items:center}
.logo-card .lg+.lg{border-inline-start:1.5px solid var(--gold2)}
.logo-card img{height:130px;width:auto}
.logo-card .lg.sm img{height:104px}
@media (max-width:700px){.logo-card img{height:80px}.logo-card .lg.sm img{height:66px}.logo-card .lg{padding:4px 12px}}
.hack-badge{display:inline-flex;align-items:center;gap:10px;margin-top:16px;background:var(--navy);color:#fff;border-radius:40px;padding:8px 20px;font-weight:800;box-shadow:0 8px 24px rgba(15,58,96,.3)}
.hack-badge span{color:var(--gold2)}
.challenge{margin:18px auto 0;max-width:720px;font-size:19px;color:var(--text)}
.challenge b{color:var(--navy)}
.cta{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:24px}

/* countdown */
.countdown{display:inline-flex;gap:10px;margin-top:26px;direction:ltr}
.countdown div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 16px;min-width:86px;box-shadow:0 8px 24px rgba(15,58,96,.08)}
.countdown b{display:block;font-size:34px;font-weight:900;color:var(--navy);font-variant-numeric:tabular-nums;line-height:1.1}
.countdown small{color:var(--muted);font-size:12px}
.cd-label{margin-top:10px;color:var(--muted);font-weight:700}

/* floating AI marks */
.ai-marks{position:absolute;inset:0;pointer-events:none}
.hex{position:absolute;width:78px;height:86px;display:grid;place-items:center;
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);background:linear-gradient(160deg,#ffffff,#dcebf8);animation:float 7s ease-in-out infinite}
.hex::before{content:"";position:absolute;inset:2px;clip-path:inherit;background:linear-gradient(160deg,#fff,#eef5fc)}
.hex svg{position:relative;width:40px;height:40px}
.hex.g{background:linear-gradient(160deg,var(--gold2),#f6e7c1)}
@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-14px) rotate(3deg)}}
@media (max-width:900px){.hex{opacity:.35;transform:scale(.7)}}

/* stats */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:-34px;position:relative;z-index:3}
@media (max-width:760px){.stats-row{grid-template-columns:repeat(2,1fr)}}
.stat{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-size:34px;font-weight:900;color:var(--navy);font-variant-numeric:tabular-nums}
.stat span{color:var(--muted);font-weight:700;font-size:14px}
.stat .ic{font-size:24px}

/* sections */
section.block{padding:56px 0 10px}
.sec-head{text-align:center;margin-bottom:26px}
.sec-head h2{margin:0;font-size:clamp(24px,3.6vw,36px);font-weight:900;color:var(--navy)}
.sec-head p{margin:4px 0 0;color:var(--muted)}
.sec-head .kick{display:inline-block;color:var(--gold);font-weight:800;letter-spacing:1px;font-size:13px;margin-bottom:4px}

/* podium */
.podium{display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:16px;align-items:end;max-width:900px;margin:0 auto 22px}
@media (max-width:700px){.podium{grid-template-columns:1fr}}
.pod{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden}
.pod::before{content:"";position:absolute;inset:0 0 auto;height:6px}
.pod.p1{padding:28px 18px;border-color:var(--gold2)} .pod.p1::before{background:linear-gradient(90deg,var(--gold2),var(--gold))}
.pod.p2::before{background:linear-gradient(90deg,#cfd8e3,#97a8bc)} .pod.p3::before{background:linear-gradient(90deg,#e6b08b,#b8713f)}
.pod .medal{font-size:44px;line-height:1}
.pod .tn{font-size:20px;font-weight:900;color:var(--navy);margin:6px 0 2px;word-break:break-word}
.pod .sc{font-size:42px;font-weight:900;color:var(--blue);font-variant-numeric:tabular-nums;line-height:1.1}
.pod.p1 .sc{font-size:54px;color:var(--gold)}
.pod .md{color:var(--muted);font-size:13px}
.empty{text-align:center;padding:30px;background:#fff;border:1px dashed var(--line);border-radius:20px;color:var(--muted)}

/* tables */
.tscroll{overflow:auto;border-radius:16px;border:1px solid var(--line);background:#fff}
.tbl{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.tbl th{background:var(--navy);color:#fff;font-weight:700;padding:11px 10px;font-size:14px;position:sticky;top:0;white-space:nowrap}
.tbl td{padding:10px;border-bottom:1px solid var(--line);text-align:center}
.tbl tr:nth-child(even) td{background:var(--ice2)}
.tbl tr.top td{background:#fffaf0}
.tbl td.sc{font-weight:900;color:var(--blue);font-size:17px}
.tbl .live{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);margin-inline-end:6px;animation:pulse 1.5s infinite}
@keyframes pulse{50%{opacity:.25}}
.details span{display:inline-block;background:var(--ice);border-radius:6px;padding:1px 6px;margin:1px;white-space:nowrap}
.details i{font-style:normal;color:var(--muted)}

/* pipeline */
.pipe{display:grid;grid-template-columns:1.25fr 1fr;gap:22px;align-items:center}
@media (max-width:900px){.pipe{grid-template-columns:1fr}}
.pipe img{border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--line)}
.steps{display:grid;gap:10px}
.st{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px}
.st .n{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:900;color:#fff;background:linear-gradient(180deg,var(--blue),var(--navy));box-shadow:0 0 0 3px #dcebf8}
.st b{color:var(--navy)} .st p{margin:0;color:var(--muted);font-size:14px}

/* rules */
.rules{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:900px){.rules{grid-template-columns:1fr}}
.rule{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 8px 26px rgba(15,58,96,.06)}
.rule .ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:26px;background:var(--ice);margin-bottom:8px}
.rule h3{margin:0 0 6px;color:var(--navy)}
.rule p{margin:0;color:var(--muted)}

footer.site{margin-top:60px;background:var(--navy2);color:#c9d9ea;padding:28px 0;text-align:center}
footer.site .logos{display:flex;justify-content:center;gap:24px;margin-bottom:10px;flex-wrap:wrap}
footer.site .logos img{height:60px;background:#fff;border-radius:14px;padding:6px 10px}

/* admin */
body.admin{background:var(--ice2)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(180deg,rgba(246,250,254,.7),rgba(246,250,254,.95)),url("banner_bg.jpg") center/cover}
.login-card{width:100%;max-width:420px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;text-align:center}
.login-card h1{margin:4px 0 0;color:var(--navy)}
.login-card .logos-row{display:flex;justify-content:center;gap:16px}
.login-card .logos-row img{height:80px}
label{display:flex;flex-direction:column;gap:6px;text-align:right;font-weight:700;color:var(--navy);font-size:14px}
input:not([type=checkbox]),select{font:inherit;padding:11px 14px;border-radius:12px;border:1px solid var(--line);background:var(--ice2);color:var(--text)}
input:focus{outline:2px solid var(--sky);border-color:transparent}
label.chk{flex-direction:row;align-items:center;gap:8px}
.alert{padding:12px 16px;border-radius:12px;font-weight:700;margin:14px 0}
.alert.ok{background:#e6f7ee;color:var(--green);border:1px solid #bfe8d2}
.alert.err{background:#fbe8ea;color:var(--red);border:1px solid #f1c3c8}
.kpis{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:20px 0}
@media (max-width:800px){.kpis{grid-template-columns:repeat(2,1fr)}}
.kpi{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;text-align:center}
.kpi b{display:block;font-size:28px;font-weight:900;color:var(--navy);font-variant-numeric:tabular-nums}
.kpi span{color:var(--muted);font-size:13px;font-weight:700}
.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;margin-bottom:18px}
.panel h2{margin:0 0 14px;color:var(--navy);font-size:20px}
.ctl{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-bottom:12px}
.ctl.grid3 label{min-width:180px}
form.inline{display:inline-flex;gap:6px}
.danger-zone{border-color:#f1c3c8}

/* ===== live leaderboard ===== */
.lb-top{display:flex;align-items:center;gap:12px;justify-content:flex-end;margin-bottom:12px;flex-wrap:wrap}
.lb-live{display:inline-flex;align-items:center;gap:6px;font-weight:800;color:var(--green);margin-inline-end:auto}
.lb-live i{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(31,157,99,.6);animation:livePulse 1.6s infinite}
@keyframes livePulse{70%{box-shadow:0 0 0 9px rgba(31,157,99,0)}100%{box-shadow:0 0 0 0 rgba(31,157,99,0)}}
.lb-upd{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}
.lb-banner{background:linear-gradient(90deg,var(--navy),var(--blue));color:#fff;border-radius:16px;padding:12px 18px;margin-bottom:16px;font-size:17px;text-align:center;box-shadow:var(--shadow)}
.lb-banner b{color:var(--gold2)}
.lb-banner.show{animation:bannerIn .6s cubic-bezier(.2,.8,.2,1)}
@keyframes bannerIn{from{transform:translateY(-12px) scale(.97);opacity:0}}
.lb-grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:16px;align-items:start}
@media (max-width:900px){.lb-grid{grid-template-columns:1fr}}
.lb-tbl tbody tr{position:relative;will-change:transform}
.lb-tbl td.rk{white-space:nowrap}
.lb-tbl td.tm{min-width:150px}
.lb-tbl .bar{height:5px;border-radius:3px;background:var(--ice);margin-top:5px;overflow:hidden}
.lb-tbl .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--sky),var(--blue));border-radius:3px;transition:width .9s cubic-bezier(.2,.8,.2,1)}
.lb-tbl tr.top:first-child .bar i{background:linear-gradient(90deg,var(--gold2),var(--gold))}
.lb-tbl td.gap{color:var(--muted);font-variant-numeric:tabular-nums}
.lb-tbl .lead{background:#fff4dc;color:#8a6516;border-radius:20px;padding:2px 10px;font-size:12px;font-weight:800}
.dl{display:inline-block;margin-inline-start:6px;font-size:11.5px;font-weight:800;border-radius:20px;padding:1px 7px;vertical-align:middle}
.dl.up{background:#e3f6ec;color:var(--green)}
.dl.down{background:#fbe8ea;color:var(--red)}
.dl.new{background:#e5effa;color:var(--blue)}
.dl.eq{color:var(--line)}
tr.flash td{animation:rowFlash 2.4s ease-out}
@keyframes rowFlash{0%,25%{background:#fff0c8}}
.pod.flash{animation:podPop 1.2s cubic-bezier(.2,.8,.2,1)}
@keyframes podPop{0%{transform:scale(.94)}40%{transform:scale(1.04);box-shadow:0 0 0 6px rgba(201,161,74,.35),var(--shadow)}}
.feed{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;max-height:430px;overflow:auto}
.feed h3{margin:0 0 8px;color:var(--navy);font-size:16px}
.feed ol{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.feed li{border-inline-start:3px solid var(--line);padding:4px 10px;background:var(--ice2);border-radius:8px}
.feed li.up{border-color:var(--green)}
.feed li.gold{border-color:var(--gold);background:#fffaf0}
.feed li .fsc{color:var(--blue);font-weight:900;font-variant-numeric:tabular-nums}
.feed li small{color:var(--muted)}
@media (max-width:700px){.hide-sm{display:none}}
@media (prefers-reduced-motion:reduce){.lb-live i,tr.flash td,.pod.flash,.lb-banner.show{animation:none}}