:root{
  --bg:#070b17; --bg2:#0d1428; --txt:#e8eefc; --muted:#8fa0c4;
  --a1:#22d3ee; --a2:#a78bfa; --ok:#34d399; --bad:#fb7185; --warn:#fbbf24;
  --glass:rgba(255,255,255,.06); --line:rgba(255,255,255,.14); --fs:16px;
}
[data-theme="protan"]{ /* red-green: blue/orange/magenta only */
  --a1:#4da3ff; --a2:#ffb000; --ok:#4da3ff; --bad:#ffb000; --warn:#e0a0ff;
}
[data-theme="tritan"]{ /* blue-yellow: red/teal/pink only */
  --a1:#ff5c8a; --a2:#00cfc1; --ok:#00cfc1; --bad:#ff5c8a; --warn:#ff9fb8;
}
[data-theme="mono"]{ --a1:#e6e6e6; --a2:#9a9a9a; --ok:#fff; --bad:#bbb; --warn:#ddd; --bg:#000; --bg2:#111; }
[data-theme="mono"] body{ filter:grayscale(1) contrast(1.1); }

*{box-sizing:border-box;margin:0}
html{font-size:var(--fs)}
body{
  min-height:100vh; color:var(--txt);
  background:radial-gradient(1200px 700px at 80% -10%,#1b2450 0%,transparent 60%),
             radial-gradient(900px 600px at 0% 100%,#2a1450 0%,transparent 55%), var(--bg);
  font-family:"Segoe UI",Tahoma,"Noto Sans Arabic",system-ui,sans-serif; line-height:1.6;
}
.bg-orbs i{position:fixed;border-radius:50%;filter:blur(90px);opacity:.25;z-index:-1}
.bg-orbs i:nth-child(1){width:360px;height:360px;background:var(--a1);top:-80px;inset-inline-start:-80px}
.bg-orbs i:nth-child(2){width:300px;height:300px;background:var(--a2);bottom:-60px;inset-inline-end:10%}
.bg-orbs i:nth-child(3){width:220px;height:220px;background:var(--ok);top:40%;inset-inline-end:-60px}

.glass{background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:18px;box-shadow:0 8px 40px rgba(0,0,0,.35)}
.hidden{display:none!important}
.muted{color:var(--muted);font-size:.9rem}

.topbar{position:sticky;top:10px;margin:10px;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-size:1.1rem}
.logo-mark{background:linear-gradient(135deg,var(--a1),var(--a2));color:#06101f;font-weight:900;padding:4px 9px;border-radius:10px;box-shadow:0 0 18px var(--a1)}
.tools{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

select,input,textarea{
  background:rgba(255,255,255,.07);color:var(--txt);border:1px solid var(--line);border-radius:12px;padding:10px 12px;font:inherit;width:100%;outline:none
}
.tools select{width:auto}
select option{background:#101830;color:#fff}
input:focus,select:focus,textarea:focus{border-color:var(--a1);box-shadow:0 0 0 3px color-mix(in srgb,var(--a1) 30%,transparent)}
label{display:block;margin:10px 0 4px;color:var(--muted);font-size:.9rem}

.btn{cursor:pointer;border:0;border-radius:12px;padding:10px 16px;font:inherit;font-weight:700;color:#06101f;background:linear-gradient(135deg,var(--a1),var(--a2));box-shadow:0 0 16px color-mix(in srgb,var(--a1) 45%,transparent);transition:.2s}
.btn:hover{transform:translateY(-1px);filter:brightness(1.1)}
.btn.ghost{background:var(--glass);color:var(--txt);border:1px solid var(--line);box-shadow:none}
.btn.danger{background:var(--bad)}
.btn.big{padding:18px;font-size:1.1rem}
.btn.sm{padding:5px 10px;font-size:.85rem}
.x{position:absolute;top:8px;inset-inline-end:12px;background:none;border:0;color:var(--txt);font-size:1.6rem;cursor:pointer}

main{max-width:1150px;margin:20px auto;padding:0 14px 120px}
.auth{max-width:480px;margin:30px auto;padding:26px}
.auth h1{font-size:1.5rem;margin-bottom:4px;background:linear-gradient(90deg,var(--a1),var(--a2));-webkit-background-clip:text;background-clip:text;color:transparent}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:16px 0}
.tab{flex:1;min-width:80px;text-align:center;padding:9px 6px;border-radius:12px;border:1px solid var(--line);background:var(--glass);color:var(--txt);cursor:pointer;font:inherit}
.tab.on{background:linear-gradient(135deg,var(--a1),var(--a2));color:#06101f;font-weight:800}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.msg{margin-top:12px;padding:10px 12px;border-radius:12px;background:color-mix(in srgb,var(--bad) 18%,transparent);border:1px solid var(--bad)}
.msg.ok{background:color-mix(in srgb,var(--ok) 18%,transparent);border-color:var(--ok)}

.page-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.badge{display:inline-block;padding:3px 10px;border-radius:99px;border:1px solid var(--a1);color:var(--a1);font-size:.8rem}
.code-box{font-family:monospace;font-size:1.4rem;letter-spacing:3px;padding:10px 16px;border:2px dashed var(--a2);border-radius:14px;color:var(--a2);display:inline-block}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.card{padding:18px;cursor:pointer;transition:.25s;position:relative}
.card:hover{transform:translateY(-4px);box-shadow:0 0 28px color-mix(in srgb,var(--a1) 35%,transparent)}
.card .ic{font-size:2rem}
.panel{padding:20px;margin-bottom:16px}
table{width:100%;border-collapse:collapse}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:start}
th{color:var(--muted);font-weight:600}
.bar{height:10px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--a1),var(--a2))}
.item{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:14px;margin-bottom:8px;background:var(--glass)}
.empty{text-align:center;padding:40px 10px;color:var(--muted);border:2px dashed var(--line);border-radius:18px}

/* admin slots */
.slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:6px;max-height:300px;overflow:auto;padding:4px}
.slot{padding:8px 0;text-align:center;border-radius:10px;border:1px solid var(--line);background:var(--glass);cursor:pointer;font-size:.8rem;color:var(--txt)}
.slot.full{background:linear-gradient(135deg,color-mix(in srgb,var(--a1) 60%,transparent),color-mix(in srgb,var(--a2) 60%,transparent));color:#06101f;font-weight:800}
.slot.sel{outline:2px solid var(--warn)}

.modal{position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:50;display:flex;align-items:center;justify-content:center;padding:14px}
.modal-box{position:relative;width:min(900px,100%);max-height:92vh;overflow:auto;padding:22px;background:#0e1530}
.viewer{width:100%;height:420px;border-radius:14px;background:#050914;border:1px solid var(--line);overflow:hidden}
.video{width:100%;aspect-ratio:16/9;border:0;border-radius:14px;background:#000}
.prose{white-space:pre-wrap}

/* voice panel */
#voicePanel{position:fixed;top:80px;inset-inline-end:14px;width:min(340px,92vw);padding:18px;z-index:30}
.vgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}

/* chat */
.fab{position:fixed;bottom:20px;inset-inline-start:20px;width:60px;height:60px;border-radius:50%;border:0;font-size:1.6rem;cursor:pointer;background:linear-gradient(135deg,var(--a1),var(--a2));box-shadow:0 0 28px var(--a1);z-index:40}
#chat{position:fixed;bottom:92px;inset-inline-start:20px;width:min(380px,94vw);height:min(520px,70vh);display:flex;flex-direction:column;z-index:40;background:#0e1530}
.chat-head{display:flex;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);position:relative}
#chatLog{flex:1;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px}
.b{max-width:85%;padding:9px 12px;border-radius:14px;white-space:pre-wrap}
.b.me{align-self:flex-end;background:linear-gradient(135deg,var(--a1),var(--a2));color:#06101f}
.b.ai{align-self:flex-start;background:var(--glass);border:1px solid var(--line)}
.chat-in{display:flex;gap:6px;padding:10px;border-top:1px solid var(--line)}
.chat-tts{padding:0 12px 8px;margin:0;font-size:.8rem}
.chat-tts input{width:auto}
.chat-quick{display:flex;gap:6px;padding:8px 10px;overflow:auto;border-top:1px solid var(--line)}
.chat-quick button{white-space:nowrap;border:1px solid var(--line);background:var(--glass);color:var(--txt);border-radius:99px;padding:6px 10px;cursor:pointer;font:inherit;font-size:.78rem}
.ai-live,.ai-status{display:inline-flex;align-items:center;gap:4px;margin-inline-start:8px;color:var(--ok);font-size:.72rem;font-weight:700}
.b.thinking{color:var(--muted);animation:softPulse 1.15s infinite}
.listening{animation:pulse 1s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 10px transparent;background:var(--bad)}}
@keyframes softPulse{50%{opacity:.45}}

/* predictive learning analytics */
.ai-panel{border-color:color-mix(in srgb,var(--a1) 45%,var(--line));background:linear-gradient(135deg,color-mix(in srgb,var(--a1) 7%,var(--glass)),color-mix(in srgb,var(--a2) 6%,var(--glass)))}
.ai-panel.risk-high{border-color:color-mix(in srgb,var(--bad) 70%,var(--line))}.ai-panel.risk-watch{border-color:color-mix(in srgb,var(--warn) 60%,var(--line))}
.ai-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px 0 16px}
.metric-grid>div{padding:12px;border-radius:14px;background:rgba(255,255,255,.045);border:1px solid var(--line);display:flex;flex-direction:column;gap:2px}
.metric-grid span{color:var(--muted);font-size:.8rem}.metric-grid b{font-size:1.35rem;color:var(--a1)}
.admin-metrics{margin-bottom:16px}.admin-metrics>div{background:var(--glass)}
.insight-row,.risk-card,.risk-student{display:flex;justify-content:space-between;align-items:center;gap:12px;border:1px solid var(--line);border-radius:14px;padding:10px 12px;margin:7px 0;background:rgba(255,255,255,.035)}
.insight-row.high,.risk-card.high{border-inline-start:4px solid var(--bad)}.insight-row.watch,.risk-card.watch{border-inline-start:4px solid var(--warn)}
.risk-student{width:100%;color:var(--txt);font:inherit;text-align:start;cursor:pointer}.risk-student span{display:flex;flex-direction:column}.risk-student:hover{border-color:var(--a1)}
.recommend-list{padding-inline-start:22px;margin:7px 0 12px}.recommend-list li{margin:7px 0}
.ok-note{padding:10px 12px;border-radius:12px;background:color-mix(in srgb,var(--ok) 13%,transparent);color:var(--ok);border:1px solid color-mix(in srgb,var(--ok) 45%,transparent)}
.ai-disclaimer{border-top:1px dashed var(--line);padding-top:10px;margin-top:10px}
.subject-analytics>div{display:grid;grid-template-columns:minmax(110px,1.2fr) 3fr 55px 40px;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--line)}
.signal{display:inline-block}.table-scroll{overflow:auto}

/* managed footer */
.site-footer{max-width:1150px;margin:20px auto 95px;padding:24px;background:color-mix(in srgb,var(--bg2) 82%,transparent)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:24px}.footer-grid h3{color:var(--a1);margin-bottom:8px}.footer-grid h4{margin-bottom:8px}
.contact-list{display:flex;flex-direction:column;gap:8px}.contact-chip{display:flex;align-items:center;gap:9px;color:var(--txt);text-decoration:none;padding:9px 11px;border:1px solid var(--line);border-radius:12px;background:var(--glass)}
.contact-chip small,.contact-chip b{display:block}.contact-chip small{color:var(--muted)}.contact-chip:hover{border-color:var(--a1)}
.footer-legal details{border-bottom:1px solid var(--line);padding:8px 0}.footer-legal summary{cursor:pointer;font-weight:700;color:var(--a2)}.footer-legal p{white-space:pre-wrap;margin-top:7px;color:var(--muted)}
.footer-bottom{border-top:1px solid var(--line);margin-top:18px;padding-top:12px;text-align:center;color:var(--muted);font-size:.82rem}.ai-trust{margin-top:10px;color:var(--ok);font-size:.82rem}
.footer-contact-row{display:grid;grid-template-columns:70px 1fr 1.2fr 1.4fr auto;gap:7px;margin:8px 0;align-items:center}
.footer-editor textarea{resize:vertical}

@media(max-width:760px){.footer-grid{grid-template-columns:1fr}.footer-contact-row{grid-template-columns:60px 1fr}.footer-contact-row input[data-fc="value"],.footer-contact-row input[data-fc="href"]{grid-column:span 1}.metric-grid{grid-template-columns:1fr}.subject-analytics>div{grid-template-columns:1fr 2fr 48px}.subject-analytics small{display:none}}
@media(max-width:600px){.row{grid-template-columns:1fr}.viewer{height:300px}}

.chips{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 10px}.chips .tab{flex:none;min-width:46px}
.sel-card{outline:2px solid var(--a1)}

/* ---------- المختبر التفاعلي (lab) ---------- */
.lab-view{position:fixed;inset:0;z-index:60;background:#050914;display:flex;flex-direction:column;padding:10px;gap:10px}
.lab-top{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 14px;flex-wrap:wrap}
.lab-top-btns{display:flex;gap:6px;flex-wrap:wrap}
.lab-body{flex:1;min-height:0;display:grid;grid-template-columns:1fr 350px;gap:10px}
.lab-stage{position:relative;min-height:240px;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.lab-canvas{position:absolute;inset:0;touch-action:none}
.lab-label{position:absolute;top:10px;inset-inline-start:10px;padding:6px 14px;border-radius:99px;background:rgba(0,0,0,.7);border:1px solid var(--a1);color:var(--a1);font-weight:700;z-index:2}
.lab-side{overflow:auto;padding:14px}
.lab-side h4{margin:14px 0 6px;color:var(--a1)}
.lab-side label{display:flex;justify-content:space-between;margin:8px 0 2px}
.lab-side input[type=range]{padding:0;border:0;background:none;accent-color:var(--a1)}
.lab-side input[type=checkbox]{width:auto}
.lab-btns{display:flex;gap:6px;margin:8px 0;align-items:center}
.lab-side table{font-size:.8rem}
.lab-quiz{position:absolute;inset:0;background:rgba(5,9,20,.96);z-index:5;overflow:auto;padding:24px;display:flex;flex-direction:column;gap:12px;align-items:center;justify-content:center}
.lab-opts{display:grid;gap:10px;width:min(560px,100%)}
.lab-quiz #lq_fb{width:min(560px,100%)}
@media(max-width:800px){.lab-body{grid-template-columns:1fr;grid-template-rows:50% 50%}}

/* ---------- نموذج تسجيل المعلم ---------- */
.checks{display:flex;flex-wrap:wrap;gap:6px;max-height:210px;overflow:auto;padding:2px}
.checks label.chk{display:flex;align-items:center;gap:6px;margin:0;padding:6px 10px;border:1px solid var(--line);border-radius:12px;cursor:pointer;color:var(--txt);background:var(--glass);font-size:.85rem}
.checks input{width:auto;accent-color:var(--a1)}
.auth:has(.checks){max-width:640px}