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.brick{background:var(--c,var(--blue));box-shadow:inset 0 2px 0 color-mix(in srgb,var(--c,var(--blue)) 90%, white), inset 0 -5px 0 color-mix(in srgb,var(--c,var(--blue)) 88%, black), 0 6px 0 color-mix(in srgb,var(--c,var(--blue)) 76%, black), 0 16px 30px -16px color-mix(in srgb,var(--card-shadow) 40%, transparent);border-radius:12px;position:relative}.studs{gap:var(--stud-gap,18px);pointer-events:none;justify-content:center;display:flex;position:absolute;top:-9px;left:0;right:0}.stud{width:var(--sw,22px);height:calc(var(--sw,22px) * .58);background:radial-gradient(ellipse 88% 78% at 44% 34%, color-mix(in srgb,var(--c,var(--blue)) 82%, white) 0 48%, var(--c,var(--blue)) 78%, color-mix(in srgb,var(--c,var(--blue)) 90%, black) 100%);box-shadow:0 3px 0 color-mix(in srgb,var(--c,var(--blue)) 84%, black);border-radius:50%}header.nav{z-index:100;background:var(--bg);border-bottom:1px solid var(--hair);transition:background .3s;position:sticky;top:0}.nav-inner{justify-content:space-between;align-items:center;gap:14px;max-width:1160px;margin:0 auto;padding:14px 30px;display:flex}.logo{font-family:var(--font-display);letter-spacing:-.01em;transition:transform .2s var(--pop);align-items:center;gap:13px;font-size:21px;font-weight:700;display:flex}.logo:hover{transform:scale(1.03)}.logo:active{transform:scale(.97)}.logo b{color:var(--blue-text);font-weight:700}.logo-mark{--c:var(--blue);background:linear-gradient(135deg,color-mix(in srgb,var(--c) 92%,white),var(--c) 55%,color-mix(in srgb,var(--c) 78%,black));width:36px;height:36px;box-shadow:inset 0 2px 0 #ffffff61,inset 0 -3px 0 #0000002e,0 4px 0 color-mix(in srgb,var(--c) 72%,black),0 8px 18px -10px color-mix(in srgb,var(--c) 45%,transparent);color:#fff;font-size:15px;font-family:var(--font-display);letter-spacing:-.02em;transition:transform .2s var(--pop);border-radius:9px;place-items:center;font-weight:800;display:grid;position:relative}.logo-mark:before{content:"";border-radius:inherit;pointer-events:none;background:linear-gradient(#ffffff2e,#0000 45%);position:absolute;inset:0}.logo:hover .logo-mark{transform:rotate(-6deg)scale(1.08)}.nav-right{align-items:center;gap:9px;display:flex}.nav-left{align-items:center;gap:26px;display:flex}.nav-links{border-left:1px solid var(--hair);align-items:center;gap:22px;padding-left:20px;display:flex}html[dir=rtl] .nav-links{border-left:none;border-right:1px solid var(--hair);padding-left:0;padding-right:20px}.nav-links a.navlink{color:var(--ink-soft);transition:color .2s var(--ease);font-size:15px;font-weight:500;text-decoration:none}.nav-links a.navlink:hover{color:var(--ink)}.nav-links a.navlink:active{color:var(--blue-text)}.tool,.topbar-btn{cursor:pointer;border:1px solid var(--hair);background:var(--paper);width:38px;height:38px;color:var(--ink-soft);box-shadow:var(--shadow-sm);transition:transform .18s var(--pop),box-shadow .18s var(--pop),background-color .18s ease,color .18s ease,border-color .18s ease;font-family:var(--font-body);border-radius:10px;place-items:center;font-size:13.5px;font-weight:600;display:grid}.tool:hover,.topbar-btn:hover{color:var(--ink);transform:translateY(-2px)}.tool:active,.topbar-btn:active{box-shadow:none;transform:translateY(2px)}.topbar-btn.active{border-color:var(--blue);color:var(--blue-text);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--blue) 35%,transparent), var(--shadow-sm)}.tool svg,.topbar-btn svg{stroke:currentColor;fill:none;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;width:18px;height:18px;display:block}[data-theme=dark] .tool .ic-sun,[data-theme=light] .tool .ic-moon{display:none}.tool.lang{width:auto;padding:0 13px;font-size:14px}.nav-login{color:var(--ink);background:var(--paper);box-shadow:inset 0 0 0 1px var(--hair), 0 4px 0 #2b272217;transition:transform .18s var(--pop),box-shadow .18s var(--pop),background-color .18s ease,color .18s ease;border-radius:10px;padding:10px 19px;font-size:15px;font-weight:600;text-decoration:none}.nav-login:hover{color:var(--blue-text);box-shadow:inset 0 0 0 1px var(--hair), 0 6px 0 #2b272217;transform:translateY(-2px)}.nav-login:active{box-shadow:inset 0 0 0 1px var(--hair), 0 1px 0 #2b272217;transform:translateY(2px)}[data-theme=dark] .nav-login{box-shadow:inset 0 0 0 1px var(--hair), 0 4px 0 #00000073}[data-theme=dark] .nav-login:hover{box-shadow:inset 0 0 0 1px var(--hair), 0 6px 0 #00000073}[data-theme=dark] .nav-login:active{box-shadow:inset 0 0 0 1px var(--hair), 0 1px 0 #00000073}.nav-cta{color:#fff;background:var(--amber);box-shadow:inset 0 1px 0 #fff3, 0 4px 0 color-mix(in srgb,var(--amber) 72%,black);transition:transform .18s var(--pop),box-shadow .18s var(--pop),background-color .18s ease;border-radius:10px;padding:10px 19px;font-size:15px;font-weight:600}.nav-cta:hover{box-shadow:inset 0 1px 0 #fff3, 0 6px 0 color-mix(in srgb,var(--amber) 72%,black);transform:translateY(-2px)}.nav-cta:active{box-shadow:inset 0 1px 0 #fff3, 0 2px 0 color-mix(in srgb,var(--amber) 72%,black);transform:translateY(2px)}.burger{border:1px solid var(--hair);background:var(--paper);width:40px;height:40px;box-shadow:var(--shadow-sm);cursor:pointer;color:var(--ink);transition:transform .18s var(--pop),box-shadow .18s var(--pop),background-color .18s ease,color .18s ease;border-radius:10px;place-items:center;display:none}.burger:hover{transform:translateY(-2px)}.burger:active{box-shadow:none;transform:translateY(2px)}.burger svg{stroke:currentColor;fill:none;stroke-width:2px;stroke-linecap:round;width:20px;height:20px}.burger svg path{transition:transform .3s var(--ease), opacity .3s var(--ease);transform-box:fill-box;transform-origin:50%}header.nav.open .burger svg path:first-child{transform:translateY(6px)rotate(45deg)}header.nav.open .burger svg path:nth-child(2){opacity:0}header.nav.open .burger svg path:nth-child(3){transform:translateY(-6px)rotate(-45deg)}.mobile-panel{display:none}.nav-right .tool{padding:0}.nav-right .tool.lang{padding:0 13px}.hero{padding:64px 0 56px;position:relative}.hero-grid{grid-template-columns:1.12fr .88fr;align-items:center;gap:56px;display:grid}.eyebrow{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;background:var(--paper);border:1px solid var(--hair);color:var(--ink-soft);transition:transform .2s var(--pop), box-shadow .2s var(--ease);border-radius:11px;align-items:center;gap:10px;padding:8px 15px;font-size:12px;display:inline-flex;box-shadow:0 3px #2b272212}html[lang=ar] .eyebrow{letter-spacing:0;text-transform:none;font-size:13px}.eyebrow:hover{transform:translateY(-2px);box-shadow:0 5px #2b27221a}.eyebrow:active{transform:translateY(2px);box-shadow:0 1px #2b272212}.eyebrow .dot{width:8px;height:8px;transition:transform .2s var(--pop);background:#22a55b;border-radius:2px;animation:2.4s infinite pulse;box-shadow:0 0 0 3px #22a55b59}.eyebrow:active .dot{transform:scale(.6)}@keyframes pulse{50%{box-shadow:0 0 0 6px #0000}}h1.hero-title{font-family:var(--font-display);letter-spacing:-.02em;margin:26px 0 0;font-size:clamp(42px,6.2vw,78px);font-weight:700;line-height:1.06}h1.hero-title .hl{color:var(--amber-text)}html[lang=ar] h1.hero-title{letter-spacing:0;line-height:1.22}.hero-sub{max-width:32em;color:var(--ink-soft);margin-top:24px;font-size:clamp(16px,1.8vw,19px)}.hero-sub b{color:var(--ink);box-shadow:inset 0 -.5em 0 color-mix(in srgb,var(--amber) 30%,transparent);font-weight:600}.hero-cta{flex-wrap:wrap;gap:14px;margin-top:36px;display:flex}.portrait-zone{place-items:center;display:grid;position:relative}.portrait{aspect-ratio:1/1.08;--c:var(--amber);background:var(--c);width:min(340px,80vw);box-shadow:inset 0 3px 0 color-mix(in srgb,var(--amber) 86%,white), inset 0 -8px 0 color-mix(in srgb,var(--amber) 88%,black), 0 9px 0 color-mix(in srgb,var(--amber) 76%,black), 0 26px 40px -18px #2b272259;transition:rotate .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);border-radius:20px;padding:18px;position:relative;transform:rotate(-2.4deg)}.portrait:hover{box-shadow:inset 0 3px 0 color-mix(in srgb,var(--amber) 86%,white), inset 0 -8px 0 color-mix(in srgb,var(--amber) 88%,black), 0 12px 0 color-mix(in srgb,var(--amber) 76%,black), 0 36px 50px -18px #2b272266;transform:rotate(0)translateY(-6px)}.portrait .studs{--stud-gap:30px;--sw:30px;top:-11px}.portrait img{object-fit:cover;filter:contrast(1.04)saturate(1.08);border-radius:12px;width:100%;height:100%;box-shadow:inset 0 0 0 3px #00000014,0 6px 16px #2b272233}.portrait .nametag{font-family:var(--font-mono);letter-spacing:.03em;background:var(--blue);color:#fff;white-space:nowrap;border:2px solid #fff3;border-radius:30px;padding:10px 22px;font-size:14px;font-weight:600;position:absolute;bottom:-20px;left:50%;transform:translate(-50%);box-shadow:0 6px 14px -4px #2b272259}.portrait .nametag b{color:#facc15;font-weight:700}html[lang=ar] .portrait .nametag{font-family:var(--font-body);letter-spacing:0;font-size:15px}.float{z-index:0;border-radius:9px;position:absolute}.float .studs{--stud-gap:13px;--sw:15px;top:-7px}.float-1{--c:var(--blue);width:70px;height:38px;animation:7s ease-in-out infinite bob;top:-4%;left:-3%}.float-2{--c:var(--amber);width:50px;height:50px;animation:6s ease-in-out .7s infinite bob;bottom:3%;left:-8%}.float-3{--c:var(--blue);width:56px;height:34px;animation:8s ease-in-out .4s infinite bob;top:9%;right:-6%}.float-4{--c:var(--amber);width:42px;height:42px;animation:6.5s ease-in-out 1s infinite bob;bottom:-3%;right:5%}@keyframes bob{50%{transform:translateY(-14px)rotate(-4deg)}}.socials{flex-wrap:wrap;justify-content:center;gap:11px;margin-top:40px;display:flex}.social{font-family:var(--font-mono);background:var(--paper);color:var(--ink-soft);border:1px solid var(--hair);transition:transform .18s var(--pop),box-shadow .18s var(--pop),background-color .18s ease,color .18s ease,border-color .18s ease;cursor:pointer;border-radius:12px;align-items:center;gap:8px;padding:9px 14px;font-size:12px;display:inline-flex;box-shadow:0 3px #2b272214}html[lang=ar] .social{font-family:var(--font-body);font-size:12px}.social svg{fill:currentColor;flex-shrink:0;width:15px;height:15px}.social:hover{color:#fff;background:var(--sc,var(--blue));box-shadow:0 5px 0 color-mix(in srgb,var(--sc,var(--blue)) 70%,black);border-color:#0000;transform:translateY(-2px)}.social:active{box-shadow:0 1px 0 color-mix(in srgb,var(--sc,var(--blue)) 70%,black);transform:translateY(2px)}.badges{margin-top:0}.badges-row{grid-template-columns:repeat(4,1fr);gap:18px;display:grid}.badge-card{--c:var(--paper);background:var(--c);cursor:default;box-shadow:inset 0 2px 0 color-mix(in srgb,var(--paper) 60%, white), inset 0 -4px 0 #0000000d, 0 5px 0 #2b272214, 0 16px 26px -18px #2b272233;transition:transform .22s var(--ease), box-shadow .22s var(--ease);border-radius:13px;padding:24px 20px 20px;position:relative}.badge-card:hover{box-shadow:inset 0 2px 0 color-mix(in srgb,var(--paper) 60%, white), inset 0 -4px 0 #0000000d, 0 8px 0 #2b272214, 0 24px 36px -18px #2b272247;transform:translateY(-6px)}.badge-card .studs{--stud-gap:18px;--sw:18px;top:-8px}.badge-card .stud{--c:var(--bc,var(--blue))}.badge-card .badge-icon{--c:var(--bc,var(--blue));background:var(--c);width:42px;height:42px;box-shadow:inset 0 1px 0 #fff5,0 2px 0 color-mix(in srgb,var(--c) 70%,black);transition:transform .2s var(--pop), box-shadow .2s var(--ease);border-radius:10px;place-items:center;margin-bottom:14px;display:grid}.badge-card:hover .badge-icon{box-shadow:inset 0 1px 0 #fff5,0 4px 0 color-mix(in srgb,var(--c) 70%,black);transform:scale(1.1)rotate(-4deg)}.badge-card .badge-icon svg{stroke:#fff;fill:none;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.badge-card .badge-title{font-family:var(--font-display);letter-spacing:-.01em;font-size:19px;font-weight:600;line-height:1.25;transition:color .2s}.badge-card:hover .badge-title{color:var(--bc,var(--blue))}.badge-card .badge-desc{color:var(--ink-soft);margin-top:7px;font-size:13.5px;line-height:1.55}.bc-blue .badge-icon,.bc-blue .stud{--bc:var(--blue)}.bc-amber .badge-icon,.bc-amber .stud{--bc:var(--amber)}.sec{padding:72px 0}.sec-head{max-width:48rem;margin-bottom:40px}.kicker{font-family:var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);align-items:center;gap:11px;margin-bottom:16px;font-size:12px;display:flex}html[lang=ar] .kicker{font-family:var(--font-body);letter-spacing:.02em;text-transform:none;color:var(--ink-soft);font-size:13.5px;font-weight:600}.kicker:before{content:"";background:var(--k,var(--blue));width:24px;height:13px;box-shadow:inset 0 1px 0 #fff5,0 2px 0 color-mix(in srgb,var(--k,var(--blue)) 72%,black);transition:transform .2s var(--pop);border-radius:4px;flex-shrink:0}.kicker:hover:before{transform:scale(1.15)rotate(-5deg)}h2.sec-title{font-family:var(--font-display);letter-spacing:-.02em;font-size:clamp(32px,4.4vw,52px);font-weight:700;line-height:1.06}h2.sec-title em,h2.sec-title .hl{color:var(--blue-text);font-style:normal}html[lang=ar] h2.sec-title{letter-spacing:0;line-height:1.3}.sec-desc{color:var(--ink-soft);max-width:36em;margin-top:16px;font-size:16.5px}.stack{flex-direction:column;gap:24px;max-width:920px;display:flex}.step{--c:var(--paper);background:var(--c);box-shadow:inset 0 2px 0 color-mix(in srgb,var(--paper) 55%, white), inset 0 -5px 0 #0000000d, 0 6px 0 #2b272214, 0 16px 26px -18px #2b272233;transition:transform .22s var(--ease), box-shadow .22s var(--ease);border-radius:14px;grid-template-columns:auto 1fr;align-items:start;gap:26px;padding:26px 30px;display:grid;position:relative}.step:hover{box-shadow:inset 0 2px 0 color-mix(in srgb,var(--paper) 55%, white), inset 0 -5px 0 #0000000d, 0 10px 0 #2b272214, 0 24px 36px -18px #2b272240;transform:translate(7px)}html[dir=rtl] .step:hover{transform:translate(-7px)}.step .studs{--stud-gap:16px;--sw:18px;justify-content:flex-start;top:-8px;left:26px;right:auto}html[dir=rtl] .step .studs{justify-content:flex-end;left:auto;right:26px}.step .stud{--c:var(--bc,var(--blue))}.step-num{--c:var(--bc,var(--blue));background:var(--c);color:#fff;width:52px;height:42px;font-family:var(--font-display);box-shadow:inset 0 1px 0 #fff4, 0 4px 0 color-mix(in srgb,var(--c) 68%,black);transition:transform .2s var(--pop), box-shadow .2s var(--ease);border-radius:9px;flex-shrink:0;place-items:center;font-size:19px;font-weight:600;display:grid}.step:hover .step-num{box-shadow:inset 0 1px 0 #fff4, 0 6px 0 color-mix(in srgb,var(--c) 68%,black);transform:scale(1.12)rotate(-6deg)}.step-role{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:color-mix(in srgb,var(--bc,var(--blue)) 78%, black);align-items:center;gap:8px;font-size:11.5px;font-weight:700;display:flex}.step-role svg{stroke:currentColor;fill:none;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;width:15px;height:15px}html[lang=ar] 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b{color:#fff}.foot-cols{text-align:start;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px;margin-top:36px}.foot-note-tight{margin-top:4px}.footer{background:0 0}.foot-title{color:var(--ink);margin-bottom:10px;font-weight:700}.foot-grid{gap:18px;display:grid}.foot-links-col{flex-direction:column;align-items:flex-start;gap:8px;margin:0;display:flex}[data-theme=dark] .btn:not(.btn-ghost):not(.btn-paper):not(.btn-outline){box-shadow:inset 0 1px 0 #ffffff47, 0 5px 0 color-mix(in srgb,var(--c) 55%,black), 0 14px 26px -12px #000000a6}[data-theme=dark] .btn:not(.btn-ghost):not(.btn-paper):not(.btn-outline):hover{box-shadow:inset 0 1px 0 #ffffff47, 0 8px 0 color-mix(in srgb,var(--c) 55%,black), 0 18px 30px -12px #000000a6;transform:translateY(-2px)}[data-theme=dark] .btn:not(.btn-ghost):not(.btn-paper):not(.btn-outline):active{box-shadow:inset 0 1px 0 #ffffff47, 0 2px 0 color-mix(in srgb,var(--c) 55%,black);transform:translateY(3px)}[data-theme=dark] .count-tag{box-shadow:inset 0 1px 0 #ffffff29, 0 3px 0 color-mix(in srgb,var(--ink) 32%,black)}[data-theme=dark] .detail-player .ge-toggle{box-shadow:inset 0 2px 0 #ffffff59, 0 6px 0 color-mix(in srgb,var(--amber) 55%,black), 0 16px 30px #0000008c}[data-theme=dark] .step-num{box-shadow:inset 0 1px 0 #ffffff4d, 0 4px 0 color-mix(in srgb,var(--c) 55%,black), 0 10px 18px -8px #0009}[data-theme=dark] .badge-card .badge-icon{box-shadow:inset 0 1px 0 #ffffff59, 0 2px 0 color-mix(in srgb,var(--c) 55%,black), 0 8px 16px -8px #0009}[data-theme=dark] .stat-icon{box-shadow:inset 0 1px 0 #ffffff4d, 0 3px 0 color-mix(in srgb,var(--c) 55%,black), 0 8px 16px -8px #0009}[data-theme=dark] .form-check .check-box{box-shadow:inset 0 1px #ffffff1f,0 2px #00000080}[data-theme=dark] .cta-brick{box-shadow:inset 0 3px 0 color-mix(in srgb,var(--blue) 80%,white), inset 0 -9px 0 #00000059, 0 10px 0 color-mix(in srgb,var(--blue) 60%,black), 0 34px 50px -20px #000000a6}[data-theme=dark] .q-numcircle{box-shadow:inset 0 1px #ffffff24,0 2px 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.math-display{text-align:center;margin:4px 0;padding:6px 2px;display:block;overflow:auto hidden}.math-display>.katex-display{margin:0}.katex{white-space:nowrap;font-size:1.06em}.mkbd-preview{color:#fff;background:#ffffff24;border-radius:10px;max-height:88px;margin-bottom:8px;padding:8px 12px;font-size:15px;line-height:1.7;overflow-y:auto}.mkbd-preview:empty{display:none}.mkbd-key.tpl{color:var(--blue);font-size:15px;font-weight:800;font-family:var(--font-body);border:2px dashed color-mix(in srgb,var(--blue) 65%,transparent);background:#fff;box-shadow:inset 0 1px #fff8,0 4px #00000038}.sidebar-footer button.sidebar-nav-link{cursor:pointer;font:inherit;text-align:start;background:0 0;border:0;width:100%}.mkbd{z-index:10002;background:linear-gradient(180deg,var(--amber),color-mix(in srgb,var(--amber) 78%,black));padding:0 14px env(safe-area-inset-bottom);visibility:hidden;pointer-events:none;transition:transform .42s cubic-bezier(.22,.61,.36,1),visibility 0s .42s;position:fixed;bottom:0;left:0;right:0;transform:translateY(100%);box-shadow:0 -14px 34px #00000047}.mkbd.open{visibility:visible;pointer-events:auto;transition:transform .42s cubic-bezier(.22,.61,.36,1);transform:translateY(0)}@media (min-width:641px){.mkbd{border-radius:18px 18px 0 0;width:min(720px,100vw - 32px);left:50%;right:auto;overflow:hidden;transform:translate(-50%,100%);box-shadow:0 -12px 32px #00000047,inset 0 1px #ffffff38}.mkbd.open{transform:translate(-50%)}.mkbd-inner{max-width:none}}@keyframes mkbd-in{0%{transform:translateY(100%)}to{transform:translateY(0)}}.mkbd-inner{max-width:920px;margin:0 auto;padding:12px 14px 14px}@media (min-width:641px){.mkbd-inner{padding:14px 16px 16px}}.mkbd-head{color:#fff;align-items:center;gap:10px;margin-bottom:8px;display:flex}.mkbd-title{font-family:var(--font-display);font-size:16px;font-weight:700}.mkbd-hint{opacity:.92;background:#0000002e;border-radius:999px;padding:3px 10px;font-size:12px}.mkbd-tool{cursor:pointer;color:#fff;width:40px;height:40px;transition:transform .15s var(--pop),box-shadow .15s ease;background:#ffffff2e;border:0;border-radius:12px;place-items:center;display:grid;box-shadow:inset 0 1px #ffffff40,0 3px #0003}.mkbd-tool:hover{transform:translateY(-1px)}.mkbd-tool:active{transform:translateY(2px);box-shadow:inset 0 1px #fff3,0 1px #0003}.mkbd-tabs{scrollbar-width:thin;gap:6px;padding-bottom:4px;display:flex;overflow-x:auto}.mkbd-tab{cursor:pointer;font-family:var(--font-body);color:#fff;transition:background .15s ease,color .15s ease,transform .15s var(--pop);background:#ffffff29;border:0;border-radius:999px;flex-shrink:0;padding:8px 14px;font-size:13px;font-weight:700}.mkbd-tab:active{transform:scale(.96)}.mkbd-tab.active{color:var(--amber-text);background:#fff}.mkbd-grid{grid-template-columns:repeat(auto-fill,minmax(54px,1fr));gap:8px;max-height:28dvh;margin-top:8px;padding-bottom:2px;display:grid;overflow-y:auto}.mkbd-key{--c:var(--blue);cursor:pointer;background:var(--c);color:#fff;min-height:50px;font-size:22px;font-weight:600;font-family:"Segoe UI Symbol","Noto Sans Symbols 2","Apple Symbols",var(--font-body);box-shadow:inset 0 1px 0 #fff3,0 4px 0 color-mix(in srgb,var(--c) 70%,black);transition:transform .12s var(--pop),box-shadow .12s ease;touch-action:manipulation;-webkit-user-select:none;user-select:none;border:0;border-radius:12px;justify-content:center;align-items:center;display:flex}.mkbd-key:hover{transform:translateY(-1px)}.mkbd-key:active{box-shadow:inset 0 1px 0 #fff3,0 1px 0 color-mix(in srgb,var(--c) 70%,black);transform:translateY(3px)}.mkbd-foot{gap:8px;margin-top:8px;display:flex}.mkbd-space{font-size:14px;font-family:var(--font-body);flex:1}.mkbd-enter{font-size:14px;font-family:var(--font-body);flex:none;padding:0 18px}@media (max-width:640px){.mkbd-inner{padding:8px 10px calc(8px + env(safe-area-inset-bottom))}.mkbd-head{gap:8px;margin-bottom:6px}.mkbd-tool{border-radius:10px;width:36px;height:36px}.mkbd-tabs{gap:5px;padding-bottom:3px}.mkbd-tab{padding:6px 11px;font-size:12.5px}.mkbd-grid{grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px;max-height:22dvh;margin-top:6px}.mkbd-key{border-radius:10px;min-height:42px;font-size:18px}.mkbd-foot{gap:6px;margin-top:6px}.mkbd-title{font-size:14px}.mkbd-hint{display:none}}
*{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}.dashboard,.dash-main{min-height:100dvh}.live-room{height:calc(100vh - var(--topbar-h));height:calc(100dvh - var(--topbar-h))}.live-page,.nf-page{min-height:100dvh}.toast{bottom:24px;bottom:calc(24px + env(safe-area-inset-bottom))}.sidebar{padding-bottom:env(safe-area-inset-bottom)}.sidebar-footer{padding-bottom:calc(14px + env(safe-area-inset-bottom))}.ge-dropdown-panel{max-width:calc(100vw - 24px)}.sidebar,.aq-modal-body,.chat-messages,.ge-dropdown-panel{overscroll-behavior:contain}@media (max-width:768px){.btn-sm{min-height:40px}.auth-tools .tool{width:40px;height:40px}.topbar-btn{min-width:40px;min-height:40px}.card-footer .btn{min-height:40px}}@media (max-width:640px){.user-pill,.float-auth-1,.float-auth-2,.float-auth-3,.float-auth-4{display:none}.modal-backdrop{padding:0 0 env(safe-area-inset-bottom)!important;align-items:flex-end!important}.modal-backdrop>.card{border-radius:18px 18px 0 0;max-height:92dvh;overflow-y:auto;width:100%!important;max-width:100%!important}.aq-modal{width:100%;max-width:100%;max-height:92dvh;padding-bottom:0;padding-bottom:env(safe-area-inset-bottom);border-bottom:0;border-left:0;border-right:0;border-radius:18px 18px 0 0;animation:none;inset:auto 0 0;transform:none}.notif-pop{border-radius:18px 18px 0 0;max-height:80dvh;width:100%!important;position:fixed!important;inset:auto 0 0!important}}@media (orientation:landscape) and (max-height:500px){.topbar{height:52px}.hero{padding:32px 0}.sec{padding:40px 0}.auth-card{padding:18px}.page-head{margin-bottom:18px}.aq-modal,.modal-backdrop>.card{max-height:94dvh}.detail-player{justify-self:center;width:100%;max-height:none}}body{-webkit-tap-highlight-color:transparent}@media (max-width:1024px){.sidebar{padding-bottom:env(safe-area-inset-bottom);overscroll-behavior:contain}}@media (max-width:768px){.page .form-actions{z-index:5;background:color-mix(in srgb,var(--paper) 94%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--hair);padding:12px 16px calc(12px + env(safe-area-inset-bottom));margin-left:-16px;margin-right:-16px;position:sticky;bottom:0}}@media (max-width:640px){.btn-sm,.card-footer .btn{min-height:44px}.topbar-back span{display:none}.topbar-back{min-height:40px;padding:0 10px}.topbar-title{font-size:15px}.page-head{margin-bottom:16px}}.qe-top{grid-template-columns:auto 1fr auto;align-items:end;gap:8px;margin-bottom:10px;display:grid}@media (max-width:480px){.qe-top{grid-template-columns:auto 1fr}.qe-top>div:nth-child(2){grid-area:1/1/auto/-1}.qe-top>div:first-child{grid-area:2/1}.qe-top>div:nth-child(3){grid-area:2/2;justify-content:flex-end}}@media (max-width:640px){.table-header{gap:10px;padding:12px 14px}.table-search{flex:100%;min-width:0}.table-search input{flex:1;width:auto;min-width:0;font-size:16px}.form-input,.form-textarea,.form-select{font-size:16px}.table-filter{flex:100%;min-width:0;max-width:none}.homework-card .card-meta,.detail-notice p,.detail-title{overflow-wrap:anywhere}.unit-group .section-head,.unit-group .section-head button{min-width:0}}
@keyframes pageIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes cardIn{0%{opacity:0;transform:translateY(10px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes barIn{0%{transform:translateY(-50%)scaleY(0)}to{transform:translateY(-50%)scaleY(1)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.page-enter,.page-enter>.page>.page-head{animation:pageIn var(--page-in) var(--ease) both}.page-enter>.page>:nth-child(2){animation:pageIn var(--page-in) var(--ease) 40ms both}.page-enter>.page>:nth-child(3){animation:pageIn var(--page-in) var(--ease) 80ms both}.page-enter>.page>:nth-child(4){animation:pageIn var(--page-in) var(--ease) .12s both}.page-enter>.page>:nth-child(5){animation:pageIn var(--page-in) var(--ease) .16s both}.lesson-grid>*,.exam-grid>*,.homework-list>*,.teach-qa-grid>*,.stat-grid>*,.badges-row>*{animation:cardIn .36s var(--ease) both;animation-delay:calc(var(--stagger-step) * var(--i,0))}.lesson-grid>:first-child,.exam-grid>:first-child,.homework-list>:first-child,.teach-qa-grid>:first-child,.stat-grid>:first-child{--i:0}.lesson-grid>:nth-child(2),.exam-grid>:nth-child(2),.homework-list>:nth-child(2),.teach-qa-grid>:nth-child(2),.stat-grid>:nth-child(2){--i:1}.lesson-grid>:nth-child(3),.exam-grid>:nth-child(3),.homework-list>:nth-child(3),.teach-qa-grid>:nth-child(3),.stat-grid>:nth-child(3){--i:2}.lesson-grid>:nth-child(4),.exam-grid>:nth-child(4),.homework-list>:nth-child(4),.teach-qa-grid>:nth-child(4),.stat-grid>:nth-child(4){--i:3}.lesson-grid>:nth-child(5),.exam-grid>:nth-child(5),.homework-list>:nth-child(5),.teach-qa-grid>:nth-child(5){--i:4}.lesson-grid>:nth-child(6),.exam-grid>:nth-child(6),.homework-list>:nth-child(6),.teach-qa-grid>:nth-child(6){--i:5}.lesson-grid>:nth-child(n+7),.exam-grid>:nth-child(n+7),.homework-list>:nth-child(n+7){--i:6}.card,.lesson-card,.homework-card,.exam-card,.stat-card{transition:transform var(--dur-mid) var(--pop),box-shadow var(--dur-mid) var(--ease)}.card:hover,.lesson-card:hover,.homework-card:hover,.exam-card:hover,.stat-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-3px)}.card:active,.lesson-card:active,.homework-card:active,.exam-card:active{transform:translateY(1px)}.btn{transition:transform var(--dur-fast) var(--pop),box-shadow var(--dur-fast) var(--pop),background-color var(--dur-fast) var(--ease)}.tab{transition:color var(--dur-mid) var(--ease)}.form-input:focus,.form-textarea:focus,.ge-dropdown-trigger:focus{box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 14%, transparent), var(--shadow-sm)}.section-head{animation:pageIn var(--page-in) var(--ease) both}@media (prefers-reduced-motion:reduce){.page-enter,.page-enter>.page>*,.lesson-grid>*,.exam-grid>*,.homework-list>*,.teach-qa-grid>*,.stat-grid>*{animation:none!important}.card,.lesson-card,.homework-card,.exam-card,.stat-card{transition:none!important}}