:root{--bg:#f7f8fb;--card:#ffffff;--ink:#1c2534;--ink-2:#4b5565;--muted:#8892a4;--line:#edf0f5;--line-2:#dde3ed;--brand:#17568d;--brand-2:#3d8bc7;--brand-soft:#e8f1f9;--brand-deep:#0b3356;--ok:#0d9668;--ok-soft:#e5f5ee;--live:#10b981;--live-deep:#059669;--live-soft:#d1fae5;--warn:#c77700;--warn-soft:#fef5e5;--danger:#d02a2a;--danger-soft:#fdecec;--r-sm:12px;--r-md:16px;--r-lg:22px;--shadow-sm:0 1px 2px rgba(20,30,50,.04);--shadow-md:0 4px 16px -6px rgba(20,30,50,.09);--shadow-lg:0 20px 40px -20px rgba(20,30,50,.22);--safe-top:env(safe-area-inset-top, 0px);--safe-bottom:env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{height:100%}body{font-family:Tajawal,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;min-height:100dvh;overflow-x:hidden;-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}input,textarea{font-family:inherit;font-size:16px;color:inherit}[hidden]{display:none!important}img,svg{display:block;max-width:100%}h1,h2,h3,h4{font-weight:800;line-height:1.35;letter-spacing:-.01em}h1{font-size:22px}h2{font-size:19px}h3{font-size:16px}h4{font-size:14.5px}p{color:var(--ink-2);font-size:14.5px}.view{display:none;min-height:100dvh}.view.active{display:flex;flex-direction:column;animation:viewIn .4s cubic-bezier(.2,.7,.2,1)}@keyframes viewIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.container{width:100%;max-width:520px;margin:0 auto;padding:20px 18px 120px}@media(min-width:720px){.container{max-width:760px;padding:28px 24px 120px}}.app-bar{position:sticky;top:0;z-index:50;background:#fffffff0;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line);padding-top:var(--safe-top)}.app-bar-inner{max-width:520px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;gap:12px;height:56px}@media(min-width:720px){.app-bar-inner{max-width:760px;padding:10px 24px}}.app-logo{width:34px;height:34px;border-radius:10px;flex-shrink:0;background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#fff;display:grid;place-items:center;font-weight:800;font-size:15px;box-shadow:0 6px 14px -6px #17568d8c}.app-title{font-size:13.5px;font-weight:700;line-height:1.2;color:var(--ink)}.app-subtitle{font-size:11px;color:var(--muted);font-weight:500}.live-badge{margin-inline-start:auto;display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,var(--live),var(--live-deep));color:#fff;padding:5px 11px;border-radius:99px;font-size:11.5px;font-weight:800;box-shadow:0 4px 12px -3px #10b98199}.live-dot{width:7px;height:7px;border-radius:50%;background:#fff;animation:pulseGreen 1.6s infinite}@keyframes pulseGreen{0%{box-shadow:0 0 #fffc}70%{box-shadow:0 0 0 7px #fff0}to{box-shadow:0 0 #fff0}}.tab-bar{position:fixed;bottom:0;inset-inline:0;z-index:60;background:#fffffff5;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-top:1px solid var(--line);padding-bottom:var(--safe-bottom);display:none}.tab-bar.show{display:block}.tab-bar-inner{max-width:520px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);padding:6px 6px 8px}@media(min-width:720px){.tab-bar-inner{max-width:760px}}.tab-btn{display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 4px;border-radius:12px;font-size:10.5px;font-weight:600;color:var(--muted);transition:.18s}.tab-btn svg{width:22px;height:22px;stroke-width:1.9}.tab-btn.active{color:var(--brand)}.tab-btn.active svg{stroke:var(--brand)}.tab-btn:active{transform:scale(.94)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 22px;border-radius:14px;font-weight:700;font-size:15.5px;transition:transform .12s ease,box-shadow .2s,background .2s;min-height:52px;-webkit-user-select:none;user-select:none}.btn:active{transform:scale(.97)}.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 22px -12px #17568dbf}.btn-primary:disabled{background:#e0e5ee;color:#98a1b3;box-shadow:none;cursor:not-allowed;transform:none}.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line-2)}.btn-ghost:active{background:#f5f7fb}.btn-live{background:linear-gradient(135deg,var(--live),var(--live-deep));color:#fff;box-shadow:0 10px 22px -12px #10b981b3}.btn-danger{background:var(--danger-soft);color:#a01b1b;border:1px solid #f5c2c2}.btn-danger:active{background:#fbdcdc}.btn-block{display:flex;width:100%}.btn-sm{padding:10px 16px;font-size:14px;min-height:42px;border-radius:12px}.btn-xs{padding:7px 12px;font-size:12.5px;min-height:34px;border-radius:10px}.pill{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:99px;font-size:11.5px;font-weight:700;background:var(--brand-soft);color:var(--brand)}.pill.ok{background:var(--ok-soft);color:#0a7351}.pill.warn{background:var(--warn-soft);color:#8a5500}.pill.danger{background:var(--danger-soft);color:#a01b1b}.pill.soft{background:#f2f4fa;color:var(--ink-2)}.pill.live{background:var(--live-soft);color:var(--live-deep)}.card{background:var(--card);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-md)}.card+.card{margin-top:14px}.card-header{display:flex;align-items:center;gap:10px;margin-bottom:14px}.card-header h3{font-size:15.5px;color:var(--ink)}.home-hero{text-align:center;padding:24px 8px 10px}.hero-logo{width:86px;height:86px;margin:0 auto 22px;border-radius:26px;background:linear-gradient(135deg,var(--brand-deep),var(--brand-2));color:#fff;display:grid;place-items:center;font-size:40px;line-height:1;box-shadow:0 22px 44px -20px #0b3356d9;position:relative}.hero-logo:after{content:"";position:absolute;top:-7px;right:-7px;bottom:-7px;left:-7px;border-radius:32px;border:2px dashed #cfe3f2;animation:rotateSlow 24s linear infinite}@keyframes rotateSlow{to{transform:rotate(360deg)}}.home-hero .hero-university{font-size:12px;color:var(--brand);font-weight:700;letter-spacing:.5px;margin-bottom:10px;padding:5px 14px;background:var(--brand-soft);border-radius:99px;display:inline-block}.home-hero h1{font-size:24px;letter-spacing:-.5px;color:var(--ink);margin-bottom:12px}.home-hero .hero-tagline{font-size:14px;color:var(--muted);max-width:380px;margin:0 auto 26px;line-height:1.75}.hero-actions{display:flex;flex-direction:column;gap:10px;max-width:340px;margin:0 auto}@media(min-width:600px){.hero-actions{flex-direction:row;max-width:460px}.hero-actions .btn{flex:1}}.home-section{margin-top:36px}.section-title{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:6px}.section-subtitle{font-size:13.5px;color:var(--muted);margin-bottom:18px;line-height:1.65}.steps-list{display:flex;flex-direction:column;gap:12px}.step-card{display:flex;gap:14px;padding:18px;background:#fff;border-radius:var(--r-md);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.18s}.step-card:active{transform:scale(.99)}.step-number{width:38px;height:38px;border-radius:12px;flex-shrink:0;background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#fff;display:grid;place-items:center;font-weight:800;font-size:15px;box-shadow:0 6px 14px -6px #0b335699}.step-body{flex:1;min-width:0}.step-body h3{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:5px}.step-body p{font-size:13px;color:var(--muted);line-height:1.7}.features-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(min-width:720px){.features-grid{grid-template-columns:repeat(4,1fr)}}.feature-card{padding:16px;background:#fff;border-radius:var(--r-md);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.18s}.feature-card:active{transform:scale(.98)}.feature-icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:20px;margin-bottom:12px;background:var(--brand-soft)}.feature-card h3{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.4}.feature-card p{font-size:12.5px;color:var(--muted);line-height:1.6}.quick-access{margin-top:34px;padding:24px 20px;background:linear-gradient(135deg,#f0f7fc,#e4eef7);border-radius:var(--r-lg);border:1px solid #d9e6f2}.quick-access h2{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:16px;text-align:center}.quick-actions{display:flex;flex-direction:column;gap:10px}.quick-card{display:flex;align-items:center;gap:14px;padding:16px;background:#fff;border-radius:16px;border:1px solid var(--line);text-align:right;transition:.15s;cursor:pointer;width:100%;font-family:inherit;color:var(--ink)}.quick-card:active{transform:scale(.98)}.quick-card .quick-icon{width:48px;height:48px;border-radius:14px;flex-shrink:0;display:grid;place-items:center;font-size:22px;background:var(--brand-soft)}.quick-card.teacher .quick-icon{background:linear-gradient(135deg,#fef5e5,#fde9d0)}.quick-card .quick-body{flex:1;min-width:0}.quick-card .quick-body b{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:3px}.quick-card .quick-body span{font-size:12px;color:var(--muted);display:block}.quick-card .quick-arrow{color:var(--muted);font-size:18px;flex-shrink:0}.home-footer{margin-top:36px;padding:22px 16px;text-align:center;border-top:1px dashed var(--line-2)}.home-footer .footer-logo{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#fff;display:grid;place-items:center;font-size:20px;margin:0 auto 12px;box-shadow:0 10px 20px -10px #0b3356b3}.home-footer p{font-size:12.5px;color:var(--muted);line-height:1.75}.home-footer b{color:var(--ink);font-weight:700}#view-join{display:none;min-height:100dvh;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}#view-join.active{display:flex;align-items:center;justify-content:center}.join-wrap{width:100%;max-width:420px;padding:28px 22px;margin:0 auto}.join-logo{width:68px;height:68px;border-radius:20px;margin:0 auto 20px;background:linear-gradient(135deg,var(--brand-deep),var(--brand-2));color:#fff;display:grid;place-items:center;font-size:30px;font-weight:800;box-shadow:0 16px 32px -16px #0b3356b3}.join-univ{text-align:center;font-size:12px;font-weight:700;color:var(--brand);margin-bottom:6px;letter-spacing:.3px}.join-title{text-align:center;margin-bottom:8px;color:var(--ink)}.join-desc{text-align:center;font-size:14px;color:var(--muted);margin-bottom:26px;line-height:1.65}.join-steps{display:flex;align-items:center;justify-content:center;gap:6px;margin-bottom:22px}.join-step{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--muted);font-weight:600}.join-step .num{width:18px;height:18px;border-radius:50%;background:#e6eaf1;color:var(--muted);display:grid;place-items:center;font-size:10px;font-weight:800}.join-step.active .num{background:var(--brand);color:#fff}.join-step.active{color:var(--brand)}.join-step-line{width:14px;height:1px;background:var(--line-2)}.code-box{display:flex;gap:8px;justify-content:center;direction:ltr;margin-bottom:12px}.code-box input{width:48px;height:58px;text-align:center;font-size:22px;font-weight:800;border:1.5px solid var(--line-2);border-radius:14px;background:#fbfcfe;outline:none;color:var(--brand);transition:.15s;caret-color:var(--brand)}.code-box input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px #17568d1f;transform:translateY(-2px)}.code-box input.filled{border-color:#b8d5eb;background:#f2f8fc}.code-box.shake{animation:shake .4s}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-5px)}80%{transform:translate(5px)}}.code-hint{text-align:center;font-size:12.5px;color:var(--muted);margin-bottom:20px;min-height:18px;font-weight:500}.code-hint.error{color:var(--danger);font-weight:700}.code-hint b{color:var(--brand);font-family:monospace;letter-spacing:2px;font-size:13px}.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12.5px;margin:22px 0;font-weight:500}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}.qr-block{text-align:center;padding:16px;background:#fbfcfe;border:1px dashed var(--line-2);border-radius:16px}.qr-mini{display:grid;gap:2px;width:104px;height:104px;padding:9px;margin:0 auto 10px;background:#fff;border:1px solid var(--line-2);border-radius:14px}.qr-mini i{border-radius:1.5px;background:transparent}.qr-mini i.on{background:var(--brand-deep)}.qr-note{font-size:12px;color:var(--muted);line-height:1.6}.trust{display:flex;align-items:flex-start;gap:9px;margin-top:20px;padding:12px 14px;background:#f8fafd;border-radius:12px;font-size:12px;color:var(--ink-2);line-height:1.65;border:1px solid var(--line)}.trust .lock{flex-shrink:0;font-size:14px;line-height:1.4}#view-loading{display:none;min-height:100dvh;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}#view-loading.active{display:flex;align-items:center;justify-content:center;background:var(--bg)}.loader-wrap{width:100%;max-width:340px;padding:32px 24px;text-align:center}.spinner{width:78px;height:78px;margin:0 auto 24px;position:relative}.spinner svg{width:100%;height:100%;transform:rotate(-90deg)}.spinner .track{fill:none;stroke:#e2e8f1;stroke-width:5.5}.spinner .arc{fill:none;stroke:url(#loaderGrad);stroke-width:5.5;stroke-linecap:round;stroke-dasharray:264;stroke-dashoffset:264;animation:spin 1.5s cubic-bezier(.45,.05,.55,.95) infinite}@keyframes spin{0%{stroke-dashoffset:264;transform:rotate(0)}55%{stroke-dashoffset:66}to{stroke-dashoffset:264;transform:rotate(360deg)}}.spinner .center{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;font-size:22px;font-weight:800;color:var(--brand)}.loader-title{font-size:17px;font-weight:800;margin-bottom:6px;color:var(--ink)}.loader-step{font-size:13.5px;color:var(--muted);min-height:20px;font-weight:500;transition:.3s}.loader-bar{height:4px;background:#e2e8f1;border-radius:99px;margin-top:22px;overflow:hidden}.loader-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:99px;transition:width .4s ease}.loader-code{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:8px 14px;border-radius:11px;background:#fff;border:1px solid var(--line-2);font-size:12.5px;color:var(--ink-2)}.loader-code b{font-family:monospace;letter-spacing:3px;color:var(--brand);font-size:14px;direction:ltr}.lecture-card{background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);color:#fff;border-radius:var(--r-lg);padding:18px 20px;margin-bottom:14px;position:relative;overflow:hidden;box-shadow:0 16px 34px -20px #0b3356a6}.lecture-card:after{content:"";position:absolute;top:-30%;inset-inline-end:-20%;width:180px;height:180px;border-radius:50%;background:#ffffff14}.lecture-card .lc-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;position:relative}.lecture-card .lc-live{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,var(--live),var(--live-deep));padding:5px 11px;border-radius:99px;font-size:11.5px;font-weight:800;color:#fff;box-shadow:0 4px 12px -3px #10b981b3}.lecture-card .lc-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulseGreen 1.6s infinite}.lecture-card .lc-timer{margin-inline-start:auto;font-family:monospace;font-size:13px;color:#ffffffeb;direction:ltr}.lecture-card h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:4px;position:relative}.lecture-card .lc-meta{font-size:12.5px;color:#ffffffd9;position:relative}.code-strip{display:flex;align-items:center;gap:10px;padding:12px 14px 12px 16px;border-radius:14px;background:#fff;box-shadow:var(--shadow-sm);border:1px solid var(--line);margin-bottom:18px}.code-strip .cs-label{font-size:12.5px;color:var(--muted);font-weight:600;flex-shrink:0}.code-strip .cs-value{font-family:monospace;font-size:16px;font-weight:800;letter-spacing:4px;color:var(--brand-deep);direction:ltr;margin-inline-start:auto}.cs-copy{width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-size:15px;transition:.18s;flex-shrink:0;border:1px solid transparent;position:relative}.cs-copy:hover{background:#d4e6f5}.cs-copy:active{transform:scale(.9)}.cs-copy.copied{background:var(--live-soft);color:var(--ok);border-color:#a7e0c7;animation:copyPop .35s cubic-bezier(.3,1.5,.5,1)}@keyframes copyPop{0%{transform:scale(.8)}60%{transform:scale(1.1)}to{transform:scale(1)}}.state{animation:stateIn .45s cubic-bezier(.2,.7,.2,1)}@keyframes stateIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.waiting-card{background:#fff;border-radius:var(--r-lg);padding:36px 24px;text-align:center;box-shadow:var(--shadow-md);position:relative;overflow:hidden}.waiting-visual{position:relative;width:96px;height:96px;margin:0 auto 20px}.waiting-visual:before,.waiting-visual:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;border:2px solid #d6e6f2;animation:ripple 2.4s cubic-bezier(.2,.6,.3,1) infinite}.waiting-visual:after{animation-delay:1.2s}@keyframes ripple{0%{transform:scale(.5);opacity:.8}to{transform:scale(1.4);opacity:0}}.waiting-icon{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:linear-gradient(135deg,#e8f1f9,#e0f2f4);border-radius:50%;font-size:38px;z-index:1}.waiting-card h3{font-size:17px;margin-bottom:8px;color:var(--ink)}.waiting-card p{font-size:13.5px;color:var(--muted);max-width:280px;margin:0 auto 22px;line-height:1.65}.waiting-dots{display:inline-flex;gap:5px;margin-bottom:22px}.waiting-dots span{width:7px;height:7px;border-radius:50%;background:var(--brand);opacity:.3;animation:dotFade 1.4s infinite}.waiting-dots span:nth-child(2){animation-delay:.2s}.waiting-dots span:nth-child(3){animation-delay:.4s}@keyframes dotFade{0%,to{opacity:.25;transform:scale(1)}50%{opacity:1;transform:scale(1.15)}}.simulate-hint{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px;font-size:11.5px;color:var(--muted);font-weight:500}.simulate-hint:before,.simulate-hint:after{content:"";width:20px;height:1px;background:var(--line-2)}.board-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-md);overflow:hidden;position:relative}.board-head{display:flex;align-items:center;gap:10px;padding:14px 18px 0}.board-tag{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:99px;font-size:11.5px;font-weight:800;background:var(--brand-soft);color:var(--brand-deep)}.board-tag.image{background:#e0f2f4;color:#0d5e6b}.board-tag.video{background:#e5edf9;color:#1e3a78}.board-tag.file{background:var(--warn-soft);color:#8a5500}.board-tag.announcement{background:var(--ok-soft);color:#0a6b4d}.board-time{font-size:11.5px;color:var(--muted);margin-inline-start:auto;font-weight:600}.board-media{padding:14px 18px 0}.board-media:empty{display:none;padding:0}.media-image{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#fbfcfe}.media-image img,.media-image svg{width:100%;display:block}.media-caption{padding:10px 14px;font-size:12px;color:var(--ink-2);background:#fbfcfe;border-top:1px solid var(--line);display:flex;align-items:center;gap:7px}.media-video{border-radius:14px;overflow:hidden;position:relative;cursor:pointer;background:var(--brand-deep);aspect-ratio:16/9}.media-video .mv-thumb{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#0b3356,#17568d,#3d8bc7);opacity:.95}.media-video .mv-thumb:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(400px 200px at 20% 30%,rgba(255,255,255,.14),transparent 70%),radial-gradient(300px 200px at 80% 70%,rgba(61,139,199,.22),transparent 70%)}.media-video .mv-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:50%;background:#fffffff5;display:grid;place-items:center;box-shadow:0 12px 30px -8px #00000059;transition:.2s;color:var(--brand-deep);font-size:24px;padding-inline-start:4px}.media-video:hover .mv-play{transform:translate(-50%,-50%) scale(1.08)}.media-video .mv-info{position:absolute;bottom:0;inset-inline:0;padding:12px 14px;display:flex;align-items:center;gap:10px;background:linear-gradient(to top,rgba(11,51,86,.88),transparent);color:#fff}.media-video .mv-info b{font-size:13px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.media-video .mv-duration{margin-inline-start:auto;font-family:monospace;font-size:11.5px;background:#0000008c;color:#fff;padding:3px 8px;border-radius:6px;font-weight:700}.media-file{display:flex;align-items:center;gap:12px;padding:14px;border-radius:14px;background:#fbfcfe;border:1px solid var(--line)}.media-file-icon{width:48px;height:48px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;font-size:13px;font-weight:800;background:#fff;border:1px solid var(--line-2);color:#b42318;letter-spacing:.5px}.media-file-info{flex:1;min-width:0}.media-file-info b{display:block;font-size:13.5px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.media-file-info span{font-size:11.5px;color:var(--muted)}.media-file-actions{display:flex;gap:6px;flex-shrink:0}.file-btn{padding:8px 12px;border-radius:10px;font-size:12px;font-weight:700;min-height:0;min-width:0;display:inline-flex;align-items:center;gap:5px;transition:.15s}.file-btn.read{background:var(--brand);color:#fff}.file-btn.read:active{transform:scale(.96)}.file-btn.download{background:#fff;color:var(--ink);border:1px solid var(--line-2)}.file-btn.download:active{background:#f5f7fb}@media(max-width:400px){.media-file-actions{flex-direction:column}.file-btn{width:100%;justify-content:center}}.board-content{padding:16px 18px 0}.board-content h3{font-size:17px;font-weight:700;line-height:1.65;color:var(--ink);margin-bottom:8px}.board-content p{font-size:14px;color:var(--ink-2);line-height:1.7}.board-content p:empty{display:none}.board-options{padding:16px 18px 0}.board-options:empty{display:none;padding:0}.options-list{display:flex;flex-direction:column;gap:10px}.option{display:flex;align-items:center;gap:12px;padding:15px 16px;border:1.5px solid var(--line-2);border-radius:14px;background:#fff;font-size:15px;font-weight:600;text-align:right;transition:.15s;min-height:56px;color:var(--ink);width:100%}.option:active{transform:scale(.99)}.option .key{width:32px;height:32px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;font-size:13.5px;font-weight:800;background:#e8ecf3;color:var(--ink-2);transition:.15s}.option.selected{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 0 0 3px #17568d1a}.option.selected .key{background:var(--brand);color:#fff}.board-actions{padding:18px 18px 20px}.board-actions:empty{display:none;padding:0}.preview-strip{margin-top:14px;padding:14px;border-radius:16px;background:#fbfcfe;border:1px dashed var(--line-2)}.preview-label{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--muted);font-weight:700;margin-bottom:10px;letter-spacing:.3px}.preview-label .dot{width:6px;height:6px;border-radius:50%;background:var(--warn);animation:pulse2 1.6s infinite}@keyframes pulse2{0%{opacity:1}50%{opacity:.4}to{opacity:1}}.preview-tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}.preview-tabs::-webkit-scrollbar{display:none}.preview-tab{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:99px;font-size:12.5px;font-weight:700;color:var(--ink-2);background:#fff;border:1px solid var(--line);white-space:nowrap;transition:.18s;flex-shrink:0}.preview-tab.active{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep)}.preview-tab .em{font-size:14px;line-height:1}.submitted-card{background:#fff;border-radius:var(--r-lg);padding:40px 24px 34px;text-align:center;box-shadow:var(--shadow-md)}.submitted-icon{width:80px;height:80px;margin:0 auto 22px;border-radius:50%;background:var(--ok-soft);display:grid;place-items:center;position:relative}.submitted-icon:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;border:2px solid var(--ok-soft);animation:successRing 1.6s ease-out infinite}@keyframes successRing{0%{transform:scale(1);opacity:.8}to{transform:scale(1.5);opacity:0}}.submitted-icon .check{width:48px;height:48px;border-radius:50%;background:var(--ok);color:#fff;display:grid;place-items:center;font-size:24px;font-weight:800;animation:pop .5s cubic-bezier(.3,1.5,.5,1)}@keyframes pop{0%{transform:scale(0)}to{transform:scale(1)}}.submitted-card h3{font-size:18px;margin-bottom:8px;color:var(--ink)}.submitted-card p{font-size:13.5px;color:var(--muted);max-width:280px;margin:0 auto 24px;line-height:1.65}.waiting-next{display:inline-flex;align-items:center;gap:9px;padding:11px 20px;border-radius:99px;background:#f8fafd;border:1px solid var(--line);font-size:12.5px;color:var(--ink-2);font-weight:600}.waiting-next .spinner-mini{width:14px;height:14px;border-radius:50%;border:2px solid #d6e6f2;border-top-color:var(--brand);animation:spin2 .8s linear infinite}@keyframes spin2{to{transform:rotate(360deg)}}.ask-card .card-header{display:flex;align-items:center;gap:8px;margin-bottom:14px}.ask-card .card-header h3{font-size:15.5px;color:var(--ink)}.ask-status{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:99px;font-size:11px;font-weight:800;margin-inline-start:auto;transition:.2s}.ask-status.open{background:var(--ok-soft);color:#0a6b4d}.ask-status.closed{background:#f0f2f7;color:#6b7280}.ask-status .dot{width:6px;height:6px;border-radius:50%;background:currentColor}.ask-status.open .dot{animation:pulse2 1.6s infinite}.ask-open textarea{width:100%;min-height:80px;padding:13px 15px;border:1.5px solid var(--line-2);border-radius:14px;background:#fbfcfe;outline:none;resize:vertical;font-size:15px;line-height:1.6;color:var(--ink);transition:.15s}.ask-open textarea:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px #17568d17}.ask-open textarea::placeholder{color:var(--muted)}.ask-open .btn{margin-top:10px}.ask-closed{display:flex;align-items:flex-start;gap:12px;padding:18px 16px;border-radius:14px;background:#f8fafd;border:1px dashed var(--line-2);animation:stateIn .35s ease}.ask-closed .lock-icon{width:40px;height:40px;flex-shrink:0;border-radius:12px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;font-size:18px}.ask-closed .closed-text b{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:3px}.ask-closed .closed-text span{font-size:12.5px;color:var(--muted);line-height:1.6}.ask-demo{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line-2);display:flex;align-items:center;gap:8px;flex-wrap:wrap}.ask-demo-label{font-size:11px;color:var(--muted);font-weight:700;margin-inline-end:4px}.ask-demo-btn{padding:6px 12px;border-radius:99px;font-size:11.5px;font-weight:700;background:#fff;border:1px solid var(--line);color:var(--ink-2);transition:.15s}.ask-demo-btn.active{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep)}.qfrom{padding:12px 14px;border-radius:12px;background:#fbfcfe;border:1px solid var(--line);margin-bottom:9px}.qfrom .qh{display:flex;justify-content:space-between;font-size:11.5px;color:var(--muted);margin-bottom:5px;font-weight:600}.qfrom p{font-size:14px;color:var(--ink);line-height:1.6}#view-profile-login{display:none;min-height:100dvh}#view-profile-login.active{display:flex;flex-direction:column}.profile-login-wrap{flex:1;width:100%;max-width:440px;margin:0 auto;padding:24px 20px 130px}.login-card{background:#fff;border-radius:var(--r-lg);padding:32px 24px 28px;box-shadow:var(--shadow-md);text-align:center}.login-icon-wrap{width:76px;height:76px;margin:0 auto 18px;border-radius:22px;background:linear-gradient(135deg,#e8f1f9,#d6e9f5);display:grid;place-items:center;position:relative}.login-icon-wrap:after{content:"";position:absolute;top:-6px;right:-6px;bottom:-6px;left:-6px;border-radius:26px;border:2px dashed #cfe3f2;animation:rotateSlow 20s linear infinite}.login-icon{font-size:34px;line-height:1}.login-title{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:8px}.login-desc{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:26px;max-width:320px;margin-inline:auto}.login-field{text-align:right;margin-bottom:18px}.login-field>label{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:10px}.login-field>label .lbl-num{width:18px;height:18px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-size:10px;font-weight:800}.login-input{width:100%;padding:15px 18px;border:1.5px solid var(--line-2);border-radius:14px;background:#fbfcfe;outline:none;font-size:17px;color:var(--ink);font-weight:700;transition:.15s;font-family:monospace;direction:ltr;text-align:center;letter-spacing:2px}.login-input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px #17568d1f}.login-input::placeholder{color:var(--muted);font-weight:400;letter-spacing:0;font-family:Tajawal,sans-serif;font-size:14.5px}.login-input.filled{border-color:#b8d5eb;background:#f2f8fc}.login-input.shake{animation:shake .4s}#uniId{font-size:18px;letter-spacing:3px}.secret-wrap{position:relative}#secretCode{font-size:19px;letter-spacing:5px;text-transform:uppercase;padding-inline-end:52px}.secret-toggle{position:absolute;top:50%;inset-inline-end:12px;transform:translateY(-50%);width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:var(--muted);font-size:16px;transition:.15s}.secret-toggle:hover{background:#eef2f7;color:var(--ink)}.secret-toggle:active{transform:translateY(-50%) scale(.92)}.secret-progress{display:flex;gap:4px;margin-top:10px;padding-inline:4px}.secret-progress span{flex:1;height:3px;border-radius:99px;background:#e6eaf1;transition:.2s}.secret-progress span.filled{background:var(--brand)}.login-hint{text-align:center;font-size:12px;color:var(--muted);margin-bottom:20px;font-weight:500;min-height:18px;line-height:1.6}.login-hint.error{color:var(--danger);font-weight:700}.login-hint b{color:var(--brand-deep);font-family:monospace;letter-spacing:1.5px;font-size:12.5px}.login-privacy{display:flex;align-items:flex-start;gap:9px;margin-top:20px;padding:12px 14px;background:#f8fafd;border-radius:12px;font-size:11.5px;color:var(--ink-2);line-height:1.65;border:1px solid var(--line);text-align:right}.login-privacy .lock{flex-shrink:0;font-size:14px;line-height:1.4}.profile-card{background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);color:#fff;border-radius:var(--r-lg);padding:24px 22px;position:relative;overflow:hidden;margin-bottom:18px;box-shadow:0 16px 34px -20px #0b3356a6}.profile-card:after{content:"";position:absolute;bottom:-40%;inset-inline-start:-15%;width:200px;height:200px;border-radius:50%;background:#ffffff0f}.profile-row{display:flex;align-items:center;gap:16px;position:relative}.profile-avatar{width:60px;height:60px;border-radius:18px;flex-shrink:0;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:grid;place-items:center;font-size:24px;font-weight:800;color:#fff;border:1.5px solid rgba(255,255,255,.28)}.profile-info{flex:1;min-width:0}.profile-info h2{font-size:18px;font-weight:800;margin-bottom:3px;color:#fff}.profile-info p{font-size:12.5px;color:#ffffffd9}.profile-score{position:relative;margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);display:flex;align-items:center;gap:16px}.profile-score .ps-num{font-size:32px;font-weight:800;line-height:1;letter-spacing:-1px;color:#fff}.profile-score .ps-num small{font-size:14px;color:#ffffffbf;font-weight:600}.profile-score .ps-label{font-size:12.5px;color:#ffffffd9;margin-top:2px}.profile-score .ps-bar{flex:1;height:6px;border-radius:99px;background:#ffffff38;overflow:hidden;position:relative}.profile-score .ps-bar span{display:block;height:100%;width:0;background:#fff;border-radius:99px;transition:width 1s cubic-bezier(.2,.8,.2,1)}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}.stat-box{background:#fff;border-radius:var(--r-md);padding:16px;box-shadow:var(--shadow-sm);border:1px solid var(--line)}.stat-box .sb-icon{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:16px;margin-bottom:10px;background:var(--brand-soft)}.stat-box .sb-num{font-size:22px;font-weight:800;line-height:1.1;letter-spacing:-.5px;color:var(--ink)}.stat-box .sb-num small{font-size:13px;color:var(--muted);font-weight:600}.stat-box .sb-label{font-size:12px;color:var(--muted);margin-top:4px;font-weight:500}.tabs-scroll{display:flex;gap:6px;overflow-x:auto;margin-bottom:16px;padding-bottom:2px;scrollbar-width:none}.tabs-scroll::-webkit-scrollbar{display:none}.tab-pill{padding:9px 16px;border-radius:99px;font-size:13.5px;font-weight:700;color:var(--ink-2);background:#fff;border:1px solid var(--line);white-space:nowrap;transition:.18s}.tab-pill.active{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep)}.tab-pane{display:none}.tab-pane.active{display:block;animation:viewIn .3s ease}.course-item{display:flex;align-items:center;gap:14px;padding:16px;border-radius:var(--r-md);background:#fff;margin-bottom:10px;border:1px solid var(--line);transition:.18s}.course-item:active{transform:scale(.99)}.course-icon{width:44px;height:44px;border-radius:13px;flex-shrink:0;display:grid;place-items:center;font-size:19px;background:linear-gradient(135deg,#e8f1f9,#e0f2f4)}.course-body{flex:1;min-width:0}.course-body b{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.course-body span{font-size:12px;color:var(--muted)}.course-score{text-align:left;flex-shrink:0}.course-score b{font-size:15px;font-weight:800;color:var(--ink);display:block;line-height:1.2}.course-score small{font-size:11px;color:var(--muted);font-weight:500}.grade-list{display:flex;flex-direction:column;gap:10px}.grade-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:14px;background:#fff;border:1px solid var(--line)}.grade-body{flex:1;min-width:0}.grade-body b{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.grade-body span{font-size:11.5px;color:var(--muted)}.grade-value{text-align:left;flex-shrink:0;font-family:monospace;font-weight:800;font-size:14px;color:var(--ink)}.note-item{padding:14px 16px;border-radius:14px;background:#fff;border:1px solid var(--line);margin-bottom:10px}.note-head{display:flex;justify-content:space-between;font-size:11.5px;color:var(--muted);margin-bottom:6px;font-weight:600}.note-body{font-size:14px;line-height:1.65;color:var(--ink-2)}.profile-logout{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}.profile-logout .btn{flex:1;min-width:140px}@media(min-width:720px){.stats-grid{grid-template-columns:repeat(4,1fr)}.board-content h3{font-size:19px}}@media(max-width:380px){.code-box{gap:6px}.code-box input{width:42px;height:52px;font-size:19px;border-radius:12px}.container{padding:16px 14px 120px}.waiting-card{padding:28px 18px}.board-head,.board-media{padding:12px 14px 0}.board-content{padding:14px 14px 0}.board-content h3{font-size:16px}.board-options{padding:14px 14px 0}.board-actions{padding:16px 14px 18px}.login-card{padding:26px 18px 22px}.profile-login-wrap{padding:18px 14px 120px}.home-hero h1{font-size:20px}.hero-logo{width:76px;height:76px;font-size:36px}}.teacher-hero{background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);color:#fff;border-radius:var(--r-lg);padding:22px;position:relative;overflow:hidden;margin-bottom:18px;box-shadow:0 16px 34px -20px #0b3356b3}.teacher-hero:after{content:"";position:absolute;top:-40%;inset-inline-end:-15%;width:220px;height:220px;border-radius:50%;background:#ffffff0f}.teacher-hero .th-greeting{font-size:12.5px;color:#ffffffd9;margin-bottom:6px;font-weight:600;position:relative}.teacher-hero .th-name{font-size:22px;font-weight:800;color:#fff;letter-spacing:-.4px;margin-bottom:4px;position:relative}.teacher-hero .th-role{font-size:12.5px;color:#ffffffc7;position:relative}.teacher-hero .th-quick{display:flex;gap:8px;margin-top:18px;position:relative;flex-wrap:wrap}.teacher-hero .th-chip{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:99px;background:#ffffff29;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-size:12px;font-weight:700;color:#fff;border:1px solid rgba(255,255,255,.12)}.teacher-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}@media(min-width:720px){.teacher-stats{grid-template-columns:repeat(4,1fr)}}.t-stat{background:#fff;border-radius:var(--r-md);padding:16px;border:1px solid var(--line);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.t-stat:after{content:"";position:absolute;top:-20px;inset-inline-end:-20px;width:60px;height:60px;border-radius:50%;background:var(--brand-soft);opacity:.4}.t-stat .ts-icon{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font-size:17px;margin-bottom:11px;position:relative;z-index:1;background:var(--brand-soft)}.t-stat .ts-num{font-size:24px;font-weight:800;line-height:1.1;color:var(--ink);position:relative;z-index:1;letter-spacing:-.5px}.t-stat .ts-num small{font-size:12.5px;color:var(--muted);font-weight:600}.t-stat .ts-label{font-size:12px;color:var(--muted);margin-top:4px;font-weight:500;position:relative;z-index:1}.t-stat.warn .ts-icon{background:var(--warn-soft)}.t-stat.ok .ts-icon{background:var(--ok-soft)}.t-stat.live .ts-icon{background:var(--live-soft)}.quick-stack{display:flex;flex-direction:column;gap:10px}.quick-row{display:flex;align-items:center;gap:13px;padding:15px 16px;border-radius:16px;background:#fff;border:1px solid var(--line);text-align:right;transition:.15s;width:100%;font-family:inherit;color:var(--ink);cursor:pointer;box-shadow:var(--shadow-sm)}.quick-row:active{transform:scale(.99)}.quick-row .qr-icon{width:44px;height:44px;border-radius:13px;flex-shrink:0;display:grid;place-items:center;font-size:20px;background:var(--brand-soft)}.quick-row.live .qr-icon{background:linear-gradient(135deg,var(--live),var(--live-deep));color:#fff}.quick-row.warn .qr-icon{background:var(--warn-soft)}.quick-row.ok .qr-icon{background:var(--ok-soft)}.quick-row .qr-body{flex:1;min-width:0}.quick-row .qr-body b{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:3px}.quick-row .qr-body span{font-size:12px;color:var(--muted);display:block}.quick-row .qr-arrow{color:var(--muted);font-size:16px;flex-shrink:0}.lec-item{display:flex;align-items:center;gap:14px;padding:16px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line);margin-bottom:10px;transition:.18s;cursor:pointer}.lec-item:active{transform:scale(.99)}.lec-item.live{border-color:var(--live);background:linear-gradient(135deg,#f0fdf7,#e6fbf1)}.lec-icon{width:46px;height:46px;border-radius:13px;flex-shrink:0;display:grid;place-items:center;font-size:20px;background:var(--brand-soft)}.lec-item.live .lec-icon{background:linear-gradient(135deg,var(--live),var(--live-deep));color:#fff;animation:lecPulse 2s infinite}@keyframes lecPulse{0%{box-shadow:0 0 #10b98180}70%{box-shadow:0 0 0 10px #10b98100}to{box-shadow:0 0 #10b98100}}.lec-body{flex:1;min-width:0}.lec-body b{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lec-body .lec-meta{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--muted);flex-wrap:wrap}.lec-body .lec-meta .dot-sep{width:3px;height:3px;border-radius:50%;background:var(--line-2)}.lec-actions{display:flex;gap:6px;flex-shrink:0}.filter-row{display:flex;gap:6px;overflow-x:auto;margin-bottom:16px;padding-bottom:2px;scrollbar-width:none}.filter-row::-webkit-scrollbar{display:none}.filter-pill{padding:8px 14px;border-radius:99px;font-size:12.5px;font-weight:700;color:var(--ink-2);background:#fff;border:1px solid var(--line);white-space:nowrap;transition:.18s;flex-shrink:0}.filter-pill.active{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep)}.broadcast-head{background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);color:#fff;border-radius:var(--r-lg);padding:18px 20px;margin-bottom:14px;position:relative;overflow:hidden;box-shadow:0 16px 34px -20px #0b3356a6}.broadcast-head:after{content:"";position:absolute;top:-30%;inset-inline-end:-20%;width:180px;height:180px;border-radius:50%;background:#ffffff14}.bh-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;position:relative}.bh-live{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,var(--live),var(--live-deep));padding:5px 11px;border-radius:99px;font-size:11.5px;font-weight:800;color:#fff;box-shadow:0 4px 12px -3px #10b981b3}.bh-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulseGreen 1.6s infinite}.bh-timer{margin-inline-start:auto;font-family:monospace;font-size:13px;color:#ffffffeb;direction:ltr}.bh-title{font-size:16px;font-weight:800;color:#fff;margin-bottom:4px;position:relative}.bh-meta{font-size:12.5px;color:#ffffffd9;position:relative}.bh-code{display:flex;align-items:center;gap:10px;margin-top:14px;padding:11px 14px;border-radius:13px;background:#ffffff24;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.16);position:relative}.bh-code .bh-label{font-size:12px;font-weight:600;color:#ffffffd9;flex-shrink:0}.bh-code .bh-value{font-family:monospace;font-size:17px;font-weight:800;letter-spacing:5px;color:#fff;direction:ltr;margin-inline-start:auto}.bh-copy{width:36px;height:36px;border-radius:10px;background:#ffffff38;color:#fff;display:grid;place-items:center;font-size:15px;transition:.18s;flex-shrink:0;border:1px solid rgba(255,255,255,.18)}.bh-copy:active{transform:scale(.9)}.bh-copy.copied{background:var(--live);border-color:var(--live)}.active-content-card{background:#fff;border-radius:var(--r-lg);padding:16px;border:1px solid var(--line);box-shadow:var(--shadow-md);margin-bottom:14px}.ac-head{display:flex;align-items:center;gap:8px;margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid var(--line)}.ac-head h4{font-size:13.5px;color:var(--ink)}.ac-status{margin-inline-start:auto;display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:99px;background:var(--live-soft);color:var(--live-deep);font-size:11px;font-weight:800}.ac-status .dot{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse2 1.6s infinite}.ac-body b{font-size:14px;font-weight:700;color:var(--ink);display:block;margin-bottom:4px;line-height:1.5}.ac-body span{font-size:12.5px;color:var(--muted)}.control-panel{background:#fff;border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow-md);margin-bottom:14px}.cp-title{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px}.cp-title:before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand)}.push-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}@media(min-width:720px){.push-grid{grid-template-columns:repeat(5,1fr)}}.push-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:14px 8px;border-radius:14px;background:#fbfcfe;border:1.5px solid var(--line-2);font-size:11.5px;font-weight:700;color:var(--ink-2);transition:.18s;min-height:80px;text-align:center}.push-btn:active{transform:scale(.96)}.push-btn .pb-icon{font-size:22px;line-height:1;display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:#fff;border:1px solid var(--line)}.push-btn.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep)}.push-btn.active .pb-icon{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent}.quick-controls{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding-top:14px;border-top:1px dashed var(--line-2)}.quick-controls .btn{min-height:44px;font-size:13.5px;padding:10px 14px}.answer-stats{background:#fff;border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow-md);margin-bottom:14px}.as-head{display:flex;align-items:center;gap:8px;margin-bottom:14px}.as-head h4{font-size:14px;color:var(--ink)}.as-count{margin-inline-start:auto;font-size:12px;font-weight:700;color:var(--brand-deep);background:var(--brand-soft);padding:5px 11px;border-radius:99px}.res-row{margin-bottom:14px}.res-row:last-child{margin-bottom:0}.res-row-head{display:flex;justify-content:space-between;font-size:13px;font-weight:600;margin-bottom:7px}.res-row-head span:first-child{color:var(--ink-2);display:flex;align-items:center;gap:6px}.res-row-head span:first-child .mark{width:18px;height:18px;border-radius:50%;background:var(--line);color:var(--ink-2);display:grid;place-items:center;font-size:10px;font-weight:800}.res-row-head .mark.correct{background:var(--ok);color:#fff}.res-row-head b{font-family:monospace;color:var(--brand-deep);font-weight:800;font-size:14px}.res-bar{height:8px;background:#eef1f7;border-radius:99px;overflow:hidden}.res-bar span{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:width .8s cubic-bezier(.2,.8,.2,1)}.res-bar.teal span{background:linear-gradient(90deg,#06b6d4,#10b981)}.res-bar.amber span{background:linear-gradient(90deg,#f59e0b,#f97316)}.res-bar.correct span{background:linear-gradient(90deg,var(--ok),var(--live))}.ask-toggle-card{background:#fff;border-radius:var(--r-lg);padding:16px 18px;box-shadow:var(--shadow-md);margin-bottom:14px;display:flex;align-items:center;gap:14px}.ask-toggle-icon{width:44px;height:44px;border-radius:13px;flex-shrink:0;display:grid;place-items:center;font-size:20px;background:var(--brand-soft);transition:.25s}.ask-toggle-icon.open{background:linear-gradient(135deg,var(--ok),#0a7351);color:#fff}.ask-toggle-icon.closed{background:#f2f4fa;color:var(--muted)}.ask-toggle-body{flex:1;min-width:0}.ask-toggle-body b{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:3px}.ask-toggle-body span{font-size:12px;color:var(--muted);display:block}.toggle-switch{position:relative;width:52px;height:30px;flex-shrink:0;border-radius:99px;background:#e2e8f1;transition:.25s;cursor:pointer}.toggle-switch:after{content:"";position:absolute;top:3px;inset-inline-end:3px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 2px 6px #00000026;transition:.25s}.toggle-switch.on{background:linear-gradient(135deg,var(--ok),#0a7351)}.toggle-switch.on:after{inset-inline-end:calc(100% - 27px)}.participants-card{background:#fff;border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow-md);margin-bottom:14px}.pc-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}.pc-head h4{font-size:14px;color:var(--ink)}.pc-count{margin-inline-start:auto;display:inline-flex;align-items:center;gap:6px}.pc-count .pc-bar{width:80px;height:6px;border-radius:99px;background:#eef1f7;overflow:hidden}.pc-count .pc-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--live),var(--brand-2));border-radius:99px;transition:width .6s}.pc-count .pc-val{font-family:monospace;font-size:12.5px;font-weight:800;color:var(--live-deep)}.p-list{display:flex;flex-direction:column;gap:8px;max-height:240px;overflow-y:auto;padding-inline-end:2px}.p-list::-webkit-scrollbar{width:4px}.p-list::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:4px}.p-row{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:11px;background:#fbfcfe;border:1px solid var(--line)}.p-avatar{width:32px;height:32px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;background:linear-gradient(135deg,#e8f1f9,#d6e9f5);font-size:13px;font-weight:800;color:var(--brand-deep)}.p-name{flex:1;min-width:0;font-size:13.5px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.p-status{font-size:10.5px;font-weight:700;padding:3px 9px;border-radius:99px;flex-shrink:0}.p-status.done{background:var(--ok-soft);color:#0a6b4d}.p-status.wait{background:var(--warn-soft);color:#8a5500}.p-status.late{background:var(--danger-soft);color:#a01b1b}.live-questions{background:#fff;border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow-md);margin-bottom:14px}.live-questions h4{font-size:14px;color:var(--ink);margin-bottom:12px}.lq-item{padding:12px 14px;border-radius:12px;background:#fbfcfe;border:1px solid var(--line);margin-bottom:9px}.lq-head{display:flex;justify-content:space-between;align-items:center;font-size:11.5px;color:var(--muted);margin-bottom:6px;font-weight:600}.lq-body{font-size:13.5px;color:var(--ink);line-height:1.6;margin-bottom:9px}.lq-actions{display:flex;gap:6px;flex-wrap:wrap}.lq-btn{padding:5px 11px;border-radius:9px;font-size:11.5px;font-weight:700;background:#fff;border:1px solid var(--line-2);color:var(--ink-2);transition:.15s}.lq-btn:active{transform:scale(.96)}.lq-btn.answer{background:var(--brand);color:#fff;border-color:var(--brand)}.lq-btn.pin{background:var(--ok-soft);color:#0a6b4d;border-color:#b3e6d0}.form-grid{display:grid;gap:14px}@media(min-width:720px){.form-grid.two{grid-template-columns:1fr 1fr}}.form-field{display:flex;flex-direction:column;gap:7px}.form-field label{font-size:13px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:6px}.form-field .lbl-hint{font-size:11px;color:var(--muted);font-weight:500}.form-input,.form-select{width:100%;padding:13px 15px;border:1.5px solid var(--line-2);border-radius:13px;background:#fbfcfe;outline:none;font-size:15px;color:var(--ink);font-weight:500;transition:.15s}.form-input:focus,.form-select:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px #17568d17}.form-input::placeholder{color:var(--muted);font-weight:400}.q-editor{background:#fbfcfe;border-radius:16px;border:1.5px dashed var(--line-2);padding:16px;margin-bottom:12px}.qe-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}.qe-num{width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#fff;display:grid;place-items:center;font-size:13px;font-weight:800;flex-shrink:0}.qe-head b{font-size:14px;color:var(--ink)}.qe-type{margin-inline-start:auto;font-size:11px;font-weight:700;color:var(--brand-deep);background:var(--brand-soft);padding:4px 10px;border-radius:99px}.qe-delete{width:32px;height:32px;border-radius:10px;background:#fff;border:1px solid var(--line-2);color:var(--muted);display:grid;place-items:center;font-size:15px;transition:.15s}.qe-delete:active{transform:scale(.9)}.qe-delete:hover{color:var(--danger);border-color:#f5c2c2}.opt-list{display:flex;flex-direction:column;gap:8px;margin-top:8px}.opt-item{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#fff;border:1.5px solid var(--line-2);border-radius:12px;transition:.15s}.opt-item.correct{border-color:var(--ok);background:var(--ok-soft)}.opt-radio{width:22px;height:22px;flex-shrink:0;border-radius:50%;border:2px solid var(--line-2);display:grid;place-items:center;cursor:pointer;transition:.15s}.opt-item.correct .opt-radio{border-color:var(--ok);background:var(--ok)}.opt-item.correct .opt-radio:after{content:"";width:8px;height:8px;border-radius:50%;background:#fff}.opt-input{flex:1;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);font-weight:500;padding:4px 0}.opt-input::placeholder{color:var(--muted);font-weight:400}.opt-del{width:26px;height:26px;border-radius:8px;color:var(--muted);display:grid;place-items:center;font-size:14px;flex-shrink:0}.opt-del:active{transform:scale(.9)}.add-opt-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:10px;border-radius:12px;background:#fff;border:1.5px dashed var(--line-2);color:var(--ink-2);font-size:13px;font-weight:700;margin-top:8px;transition:.15s;width:100%;font-family:inherit}.add-opt-btn:active{transform:scale(.98)}.summary-card{position:sticky;top:76px;background:#fff;border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-md)}.sc-row{display:flex;justify-content:space-between;padding:11px 0;font-size:14px;border-bottom:1px solid var(--line)}.sc-row:last-child{border-bottom:0}.sc-row .sc-label{color:var(--muted);font-weight:600}.sc-row .sc-value{color:var(--ink);font-weight:700}.search-bar{position:relative;margin-bottom:14px}.search-bar input{width:100%;padding:13px 15px 13px 44px;border:1.5px solid var(--line-2);border-radius:13px;background:#fff;outline:none;font-size:15px;color:var(--ink);transition:.15s}.search-bar input:focus{border-color:var(--brand);box-shadow:0 0 0 4px #17568d17}.search-bar .search-icon{position:absolute;top:50%;inset-inline-start:14px;transform:translateY(-50%);color:var(--muted);font-size:16px;pointer-events:none}.students-list{display:flex;flex-direction:column;gap:10px}.student-row{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:14px;background:#fff;border:1px solid var(--line);transition:.18s}.student-row:active{transform:scale(.99)}.st-avatar{width:44px;height:44px;border-radius:14px;flex-shrink:0;display:grid;place-items:center;background:linear-gradient(135deg,#e8f1f9,#d6e9f5);font-size:16px;font-weight:800;color:var(--brand-deep)}.st-body{flex:1;min-width:0}.st-body b{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.st-body span{font-size:11.5px;color:var(--muted);font-family:monospace;font-weight:600}.st-grade{flex-shrink:0;text-align:left}.st-grade b{font-size:15px;font-weight:800;color:var(--ink);display:block;line-height:1.1;font-family:monospace}.st-grade small{font-size:10.5px;color:var(--muted);display:block;margin-top:2px;font-weight:500}.st-grade .grade-pill{display:inline-block;font-size:10.5px;font-weight:800;padding:3px 9px;border-radius:99px;margin-top:5px}.grade-pill.excellent{background:var(--ok-soft);color:#0a6b4d}.grade-pill.good{background:var(--brand-soft);color:var(--brand-deep)}.grade-pill.mid{background:var(--warn-soft);color:#8a5500}.grade-pill.low{background:var(--danger-soft);color:#a01b1b}.export-row{display:flex;gap:8px;margin-bottom:14px}.export-row .btn{flex:1}.teacher-views-switcher{display:flex;gap:6px;overflow-x:auto;padding:0 0 4px;margin-bottom:16px;scrollbar-width:none}.teacher-views-switcher::-webkit-scrollbar{display:none}.tv-pill{padding:8px 14px;border-radius:99px;font-size:12.5px;font-weight:700;color:var(--ink-2);background:#fff;border:1px solid var(--line);white-space:nowrap;transition:.18s;flex-shrink:0;display:inline-flex;align-items:center;gap:5px}.tv-pill.active{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep)}.tv-pill .em{font-size:13px;line-height:1}