:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#fff;--bg-2:#f4f5fa;--card:#fff;--card-border:#d6dae8;--field-border:#1a234b66;--text:#1a234b;--muted:#5d6585;--accent:#283e8f;--on-accent:#fff;--accent-soft:#283e8f17;--accent-border:#283e8f59;--gold:#e4ac3e;--on-gold:#3d2a00;--ink:#1a234b0f;--ink-2:#1a234b1f;--good:#1f7a4d;--good-bg:#1f7a4d1f;--bad:#b42323;--bad-bg:#b423231a;--warn:#8a5a00;--warn-bg:#e4ac3e33;--shadow:#1a234b24;--bar-bg:#ffffffe6;--overlay:#0e14308c;--radius:22px;--font-ar:"Cairo", system-ui, sans-serif;--font-en:"Plus Jakarta Sans", "Cairo", system-ui, sans-serif}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#121a3f;--bg-2:#0d1434;--card:#1b2652;--card-border:#ffffff1c;--field-border:#ffffff47;--text:#f7f4ec;--muted:#aab3d8;--accent:#e4ac3e;--on-accent:#3d2a00;--accent-soft:#e4ac3e24;--accent-border:#e4ac3e73;--gold:#e4ac3e;--on-gold:#3d2a00;--ink:#ffffff14;--ink-2:#ffffff24;--good:#7fd6a4;--good-bg:#7fd6a429;--bad:#ff8a8a;--bad-bg:#ff8a8a29;--warn:#f3c969;--warn-bg:#f3c96929;--shadow:#00000073;--bar-bg:#121a3fe6;--overlay:#040716bf}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);margin:0}body{font-family:var(--font-ar);min-height:100dvh;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit;color:inherit}select.input option{background:var(--bg);color:var(--text)}.en{font-family:var(--font-en);text-align:left;direction:ltr}.ltr{text-align:left;direction:ltr}.shell{max-width:640px;padding:0 16px calc(90px + env(safe-area-inset-bottom));margin:0 auto}.topbar{padding:calc(14px + env(safe-area-inset-top)) 0 10px;z-index:5;background:linear-gradient(var(--bg) 70%, transparent);grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;display:grid;position:sticky;top:0}.brand{font-family:var(--font-en);white-space:nowrap;min-width:0;color:var(--accent);direction:ltr;align-items:center;gap:8px;font-size:16px;font-weight:800;display:flex}.brand small{color:var(--muted);font-size:12px;font-weight:600}.logo{background:var(--accent);flex:none;width:150px;height:60px;display:inline-block;-webkit-mask:url(/logo-mask.png) 50%/contain no-repeat;mask:url(/logo-mask.png) 50%/contain no-repeat}.logo.sm{width:110px;height:44px}.logo.lg{width:260px;height:104px}.tabbar{z-index:10;padding:8px 12px calc(8px + env(safe-area-inset-bottom));background:var(--bar-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid var(--card-border);justify-content:center;gap:4px;display:flex;position:fixed;bottom:0;left:0;right:0}.tabbar a{text-align:center;max-width:160px;color:var(--muted);border-radius:14px;flex:1;padding:8px 4px;font-size:13px;font-weight:700}.tabbar a.active{color:var(--accent);background:var(--accent-soft)}.tabbar a .ico{font-size:20px;line-height:1.1;display:block}h1{font-family:var(--font-en);margin:10px 0 6px;font-size:34px;font-weight:800;line-height:1.1}h1.ar{font-family:var(--font-ar)}.grad{color:var(--accent)}h2{margin:18px 0 8px;font-size:22px;font-weight:800}.muted{color:var(--muted)}.small{font-size:13px}.card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);box-shadow:0 1px 2px var(--shadow);margin:12px 0;padding:16px}.card.link{transition:transform .12s,border-color .12s;display:block}.card.link:active{border-color:var(--accent-border);transform:scale(.985)}.pill{background:var(--ink);color:var(--text);border-radius:999px;align-items:center;gap:6px;padding:4px 12px;font-size:13px;font-weight:700;display:inline-flex}.pill.accent{background:var(--gold);color:var(--on-gold)}.pill.ok{background:var(--good-bg);color:var(--good)}.pill.warn{background:var(--warn-bg);color:var(--warn)}.pill.bad{background:var(--bad-bg);color:var(--bad)}.pill.ghost{border:1px solid var(--card-border);color:var(--muted);background:0 0}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.between{justify-content:space-between}.stack{gap:10px;display:grid}.btn{cursor:pointer;background:var(--accent);color:var(--on-accent);box-shadow:0 6px 18px var(--shadow);border:0;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:15px;font-weight:800;display:inline-flex}.btn:disabled{opacity:.5;cursor:default;box-shadow:none}.btn.block{width:100%}.btn.ghost{background:var(--ink);color:var(--text);box-shadow:none}.btn.danger{background:var(--bad-bg);color:var(--bad);box-shadow:none}.btn.ok{background:var(--good-bg);color:var(--good);box-shadow:none}.btn.sm{padding:8px 14px;font-size:13px}.fab{bottom:calc(76px + env(safe-area-inset-bottom));z-index:9;border-radius:50%;width:58px;height:58px;padding:0;font-size:30px;position:fixed;inset-inline-end:18px}.field{gap:6px;margin:10px 0;display:grid}.field label{font-size:14px;font-weight:700}.input{background:var(--bg-2);border:1px solid var(--field-border);width:100%;color:var(--text);border-radius:16px;outline:none;padding:12px 14px}.input::placeholder{color:var(--muted);opacity:1}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}textarea.input{resize:vertical;min-height:180px;line-height:1.7}.input.en{font-family:var(--font-en)}.pw-wrap{direction:ltr;flex:1;align-items:center;display:flex;position:relative}.pw-wrap .input{padding-right:46px}.pw-eye{width:36px;height:36px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:50%;place-items:center;padding:0;display:grid;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.pw-eye:hover{background:var(--ink);color:var(--text)}.seg{background:var(--bg-2);border:1px solid var(--field-border);border-radius:999px;gap:6px;padding:4px;display:flex}.seg button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:999px;flex:1;padding:8px 10px;font-weight:700}.seg button.active{background:var(--accent);color:var(--on-accent)}.error{color:var(--bad);font-size:14px;font-weight:700}.notice{background:var(--accent-soft);border:1px solid var(--accent-border);border-radius:16px;padding:12px 14px;font-size:14px}.choice{cursor:pointer;background:var(--bg-2);border:1px solid var(--field-border);border-radius:16px;align-items:center;gap:10px;padding:10px 14px;display:flex}.choice.active{border-color:var(--accent);background:var(--accent-soft)}.choice input{accent-color:var(--accent);width:18px;height:18px}.essay-photo{border:1px solid var(--card-border);border-radius:14px;width:100%;margin-top:10px}.photo-drop{border:2px dashed var(--accent-border);text-align:center;cursor:pointer;color:var(--muted);border-radius:16px;padding:18px}.photo-drop img{border-radius:12px;max-width:100%;max-height:220px}.theme-btn{border:1px solid var(--card-border);background:var(--bg-2);cursor:pointer;border-radius:50%;flex:none;place-items:center;width:32px;height:32px;padding:0;font-size:15px;display:inline-grid}.switch{flex:none;width:46px;height:26px;position:relative}.switch input{opacity:0;cursor:pointer;margin:0;position:absolute;inset:0}.switch i{background:var(--ink-2);border-radius:999px;transition:background .15s;position:absolute;inset:0}.switch i:after{content:"";top:3px;background:var(--card);width:20px;height:20px;box-shadow:0 1px 3px var(--shadow);border-radius:50%;transition:transform .15s;position:absolute;inset-inline-start:3px}.switch input:checked+i{background:var(--accent)}.switch input:checked+i:after{transform:translate(-20px)}:root:not([dir=rtl]) .switch input:checked+i:after{transform:translate(20px)}.post-body{white-space:pre-wrap;font-family:var(--font-en);text-align:left;direction:ltr;font-size:15.5px;line-height:1.75}.post-body.ar{font-family:var(--font-ar);text-align:right;direction:rtl}.topic-box{background:var(--bg-2);border-inline-start:3px solid var(--accent);border-radius:10px;margin:8px 0;padding:10px 14px}.topic-box .en{color:var(--text);font-size:14px}.topic-box .topic-ar{color:var(--text);white-space:pre-wrap;font-size:15px;line-height:1.8}.lang-toggle{cursor:pointer;margin-top:8px;padding:3px 10px;font-family:inherit;font-size:12px}.subject-title{margin:2px 0 8px;font-size:15px;font-weight:800}.sep{border:0;border-top:1px solid var(--card-border);margin:14px 0 12px}.clamp{-webkit-line-clamp:4;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.avatar{background:var(--ink-2);width:36px;height:36px;color:var(--text);font-weight:800;font-family:var(--font-en);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:14px;display:inline-flex}.avatar.teacher{background:var(--gold);color:var(--on-gold)}img.avatar{object-fit:cover;border:1px solid var(--card-border)}img.avatar.teacher{border:2px solid var(--gold)}.avatar-pick{cursor:pointer;background:0 0;border:0;flex:none;padding:0;display:inline-flex;position:relative}.avatar-pick:disabled{opacity:.6;cursor:default}.avatar-cam{bottom:-2px;background:var(--accent);width:24px;height:24px;color:var(--on-accent);border:2px solid var(--card);border-radius:50%;place-items:center;font-size:12px;display:grid;position:absolute;inset-inline-end:-2px}.comment{background:var(--bg-2);border-radius:18px;margin:8px 0;padding:12px 14px}.comment.teacher{background:var(--accent-soft);border:1px solid var(--accent-border)}.comment .body{white-space:pre-wrap;margin-top:6px}.comment .body del{color:var(--bad);text-decoration:line-through}.comment .body b,.comment .body strong{color:var(--text)}.comment .body code{font-family:var(--font-en);background:var(--ink);direction:ltr;unicode-bidi:embed;border-radius:6px;padding:1px 6px}.comment .body .en{direction:ltr;unicode-bidi:isolate;display:inline}.comment .body del,.comment .body b{unicode-bidi:isolate}.mark{font-family:var(--font-en);color:var(--accent);direction:ltr;font-size:22px;font-weight:800}.mark small{color:var(--muted);font-size:13px;font-weight:700}.composer{bottom:calc(70px + env(safe-area-inset-bottom));background:linear-gradient(transparent, var(--bg) 30%);gap:8px;padding:8px 0;display:flex;position:sticky}.composer .input{border-radius:999px;flex:1}.stat{text-align:center;padding:12px 6px}.stat .n{font-family:var(--font-en);color:var(--accent);font-size:28px;font-weight:800}.stat .l{color:var(--muted);font-size:12px}.grid4{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}@media (width<=420px){.grid4{grid-template-columns:repeat(2,1fr)}}.modal-bg{z-index:50;background:var(--overlay);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);justify-content:center;align-items:flex-end;padding:12px;display:flex;position:fixed;inset:0}.modal{background:var(--card);border:1px solid var(--card-border);width:100%;max-width:520px;max-height:92dvh;padding:20px 18px calc(18px + env(safe-area-inset-bottom));box-shadow:0 -10px 60px var(--shadow);border-radius:26px;overflow:auto}.sketch{border-radius:16px;width:100%;height:auto;margin:6px 0 10px}.book-scene{perspective:900px;background:#121a3f;border-radius:16px;justify-content:center;align-items:center;height:290px;margin:6px 0 10px;display:flex;position:relative;overflow:hidden}.book{width:150px;height:214px;transform-style:preserve-3d;margin-top:-14px;position:relative;transform:rotateX(18deg)rotateY(-28deg)rotate(4deg)}.book-cover{object-fit:cover;border-radius:3px 8px 8px 3px;width:100%;height:100%;position:absolute;inset:0;transform:translateZ(14px);box-shadow:inset 6px 0 10px -6px #00000080,0 0 0 1px #ffffff1f}.book-spine{transform-origin:0;background:linear-gradient(90deg,#0f2a6b,#1d4ed8 60%,#1e3a8a);border-radius:3px 0 0 3px;width:28px;height:100%;position:absolute;top:0;left:0;transform:rotateY(-90deg)translateZ(0)translate(-14px)}.book-pages{transform-origin:100%;background:repeating-linear-gradient(90deg,#f5f1e6 0 2px,#d9d3c3 2px 3px);width:26px;height:calc(100% - 4px);position:absolute;top:2px;right:0;transform:rotateY(90deg)translateZ(136px)translate(13px)}.book:after{content:"";transform-origin:bottom;background:repeating-linear-gradient(#f5f1e6 0 2px,#d9d3c3 2px 3px);height:26px;position:absolute;bottom:0;left:2px;right:2px;transform:rotateX(-90deg)translateZ(-200px)translateY(13px)}.paper{background:#fdf6e3 linear-gradient(#0000 22px,#d6cdb4 22px 23px,#0000 23px 40px,#d6cdb4 40px 41px,#0000 41px);border-radius:2px;justify-content:center;align-items:center;width:118px;height:58px;display:flex;position:absolute;top:92px;left:14px;transform:translateZ(18px)rotate(-7deg);box-shadow:0 6px 14px #00000073}.paper-text{color:#1e3a8a;letter-spacing:.5px;direction:ltr;font-family:Comic Sans MS,Segoe Print,cursive;font-size:17px}.book-shadow{filter:blur(12px);background:#0000008c;border-radius:50%;width:210px;height:34px;margin-left:-95px;position:absolute;bottom:34px;left:50%}.scene-caption{text-align:center;color:#c9cfe6;font-size:12px;position:absolute;bottom:8px;left:0;right:0}.book-scene.camera{background:#000;height:310px}.book-scene.camera .book{margin-top:-22px;transform:rotateX(50deg)rotate(-10deg)scale(.95)}.book-scene.camera .book-shadow{filter:blur(16px);width:230px;height:50px;margin-left:-115px;bottom:62px}.cam-frame{pointer-events:none;position:absolute;inset:16px 26px 54px}.cam-frame i{border:3px solid #fff;border-radius:3px;width:26px;height:26px;position:absolute}.cam-frame i:first-child{border-bottom:0;border-right:0;top:0;left:0}.cam-frame i:nth-child(2){border-bottom:0;border-left:0;top:0;right:0}.cam-frame i:nth-child(3){border-top:0;border-right:0;bottom:0;left:0}.cam-frame i:nth-child(4){border-top:0;border-left:0;bottom:0;right:0}.cam-shutter{background:#fff3;border:3px solid #fff;border-radius:50%;width:34px;height:34px;margin-left:-17px;position:absolute;bottom:28px;left:50%}.book-scene.camera .scene-caption{color:#ddd;bottom:6px}.flat-book{width:158px;height:226px;margin-top:-26px;position:relative}.flat-cover{object-fit:cover;border-radius:6px;width:100%;height:100%;display:block;box-shadow:0 10px 30px #000000b3,0 0 0 1px #ffffff26}.paper.flat{width:126px;height:60px;top:104px;left:16px;transform:rotate(-6deg);box-shadow:0 4px 12px #00000080}.flat-label{background:linear-gradient(160deg,#8d8f99,#5f626d);border-radius:4px;width:150px;height:225px;margin-top:-26px;padding:6px;position:relative;box-shadow:0 10px 30px #000000b3,0 0 0 1px #ffffff26}.flat-label img{object-fit:cover;border-radius:2px;width:100%;height:100%;display:block;box-shadow:0 1px 4px #00000080}.guide-steps{gap:6px;margin:6px 0;padding-inline-start:22px;display:grid}.stream-banner{background:var(--accent-soft);border:1px solid var(--accent-border);border-radius:16px;margin:4px 0 14px;padding:12px 14px}.stream-banner .stream-name{color:var(--accent);font-size:20px;font-weight:800}.stream-banner a{color:var(--accent);text-underline-offset:3px;font-weight:800;text-decoration:underline}.step{background:var(--card);border:1px solid var(--card-border);border-radius:18px;padding:12px 14px}.step.done{border-color:var(--good)}.center{text-align:center}.hero{text-align:center;padding:36px 0 10px}.spinner{border:3px solid var(--ink-2);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;margin:40px auto;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.demo-badge{bottom:calc(76px + env(safe-area-inset-bottom));z-index:20;background:var(--gold);color:var(--on-gold);font-size:10px;font-weight:800;font-family:var(--font-en);border-radius:999px;padding:2px 8px;position:fixed;left:10px}