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nav{direction:rtl}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;min-height:100vh;overflow-x:clip}#root{min-width:0;max-width:100%;min-height:100vh}a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-hover)}button{font-family:inherit;cursor:pointer;border:none;border-radius:9999px;padding:.65rem 1.5rem;font-size:.95rem;transition:all .2s;display:inline-flex;align-items:center;justify-content:center;text-align:center;white-space:nowrap}.btn-primary,.btn-secondary,.btn-outline{display:inline-flex;align-items:center;justify-content:center;text-align:center;padding:.65rem 1.5rem;white-space:nowrap;transition:background .2s var(--ease-standard),color .2s var(--ease-standard),border-color .2s var(--ease-standard),box-shadow .28s var(--ease-out),transform .22s var(--ease-out)}.btn-primary{background:var(--surface-elevated);color:var(--primary)!important;font-weight:600;border:2px solid 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minmax(0,1fr)}.course-player-grid--full{grid-template-columns:minmax(0,1fr)}.course-player__aside{position:sticky;top:var(--space-4);padding:var(--space-4);max-height:calc(100vh - 8rem);overflow-y:auto}.course-player__main{width:100%;min-width:0;overflow:visible}@container app-main (max-width: 768px){.course-player-grid--split{grid-template-columns:1fr}}@media(max-width:768px){.course-player-grid--split{grid-template-columns:1fr}}.ui-pill-tabs{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--app-gutter)}.ui-stack{display:flex;flex-direction:column;gap:var(--app-gutter)}.dashboard-welcome{margin-bottom:var(--app-gutter);padding:var(--space-3);border-radius:var(--radius-lg);border:1px solid var(--border);border-top:none;background:linear-gradient(135deg,var(--bg-alt) 0%,var(--surface) 55%,var(--bg-alt) 100%);box-shadow:var(--shadow-md);width:100%;min-width:0;box-sizing:border-box}.dashboard-welcome h1{margin:0 0 var(--space-2);font-size:clamp(1.45rem,3.5vw,1.85rem);font-weight:800;letter-spacing:-.02em}.dashboard-welcome p{margin:0 0 var(--space-3);color:var(--text-muted);font-size:var(--text-body);max-width:35rem;line-height:1.55}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}main.layout-main-wide{max-width:none!important;width:100%!important;min-width:0;box-sizing:border-box}.practice-lab-card{min-width:0;overflow:hidden}.practice-lab-card__desc{margin:.5rem 0 0;color:var(--text-muted);font-size:.9rem;min-width:0;overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:6;line-clamp:6}.practice-lab-card__head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:var(--space-2);min-width:0}.practice-lab-card__title{flex:1 1 auto;min-width:0;margin:0;font-size:1.1rem;font-weight:700;line-height:1.35;overflow-wrap:anywhere;word-break:break-word}.practice-lab-card__title a{color:var(--primary);text-decoration:none}.practice-lab-card__title a:hover{color:var(--primary-hover);text-decoration:underline}.practice-lab-card__actions{display:flex;flex:0 0 auto;flex-shrink:0;flex-wrap:wrap;gap:.25rem;align-items:center;justify-content:flex-end;max-width:100%}.exam-attempts-section{margin-top:var(--space-4);width:100%;min-width:0}.exam-attempts-section h2{margin:0 0 var(--space-2);font-size:1.15rem;font-weight:700}.exam-attempts-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface)}.exam-attempts-table{width:100%;min-width:36rem;table-layout:fixed;border-collapse:collapse;font-size:var(--text-small)}.exam-attempts-table col.exam-attempts-table__col--student{width:36%}.exam-attempts-table col.exam-attempts-table__col--score{width:14%}.exam-attempts-table col.exam-attempts-table__col--status{width:22%}.exam-attempts-table col.exam-attempts-table__col--actions{width:28%}.exam-attempts-table thead th{text-align:start;font-weight:600;color:var(--text-muted);padding:.65rem .85rem;border-bottom:1px solid var(--border);background:var(--bg-alt);vertical-align:bottom}.exam-attempts-table tbody td{text-align:start;padding:.65rem .85rem;border-bottom:1px solid var(--border);vertical-align:middle;word-break:break-word}.exam-attempts-table tbody tr:last-child td{border-bottom:none}.exam-attempts-table tbody td:nth-child(2){white-space:nowrap}.exam-attempts-table tbody td:last-child{text-align:end}.exam-attempts-table thead th:last-child{text-align:end}.exam-create-coding-panel{width:100%;max-width:100%;min-width:0;box-sizing:border-box}.exam-create-coding-panel textarea{max-width:100%;box-sizing:border-box}.mcq-options{display:flex;flex-direction:column;gap:1rem;margin:.5rem 0 0;padding:.25rem 0 0;width:100%;max-width:100%;box-sizing:border-box}.mcq-option-row{display:flex;align-items:center;gap:.85rem;margin:0;cursor:pointer;font-size:1rem;line-height:1.5;min-width:0}.mcq-option-row:not(.mcq-option-row--editor){color:var(--text-muted)}.mcq-option-row--editor{align-items:center}.mcq-option-radio,input[type=checkbox].ui-checkbox-square{appearance:none;-webkit-appearance:none;width:1.125rem;height:1.125rem;min-width:1.125rem;min-height:1.125rem;margin:0;flex-shrink:0;border:1.5px solid var(--border, #c5d0dc);border-radius:.3rem;background:var(--surface, #fff);cursor:pointer;transition:border-color .15s ease,background-color .15s ease,box-shadow .15s ease}.mcq-option-radio:hover:not(:disabled),input[type=checkbox].ui-checkbox-square:hover:not(:disabled){border-color:var(--text-muted)}.mcq-option-radio:focus-visible,input[type=checkbox].ui-checkbox-square:focus-visible{outline:2px solid var(--primary, #3b82f6);outline-offset:2px}.mcq-option-radio:checked,input[type=checkbox].ui-checkbox-square:checked{background-color:var(--primary, #2563eb);border-color:var(--primary, #2563eb);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='white'%3E%3Cpath d='M13.78 4.22a.75.75 0 010 1.06l-7.25 7.25a.75.75 0 01-1.06 0L2.22 9.28a.75.75 0 111.06-1.06l2.97 2.97 6.72-6.72a.75.75 0 011.06 0z'/%3E%3C/svg%3E");background-size:.72rem;background-position:center;background-repeat:no-repeat}.mcq-option-radio:disabled{opacity:.45;cursor:not-allowed}.mcq-option-label{flex:1;min-width:0;color:var(--text-muted);line-height:1.5}.mcq-option-text-input{flex:1;min-width:0;margin:0}.admin-share-inst-dropdown{border-radius:.35rem}.admin-share-option-row{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.5rem .75rem;margin:0;cursor:pointer;min-height:2.5rem;box-sizing:border-box;border-radius:.35rem;transition:background .15s ease,box-shadow .15s ease}.admin-share-option-row:hover{background:var(--bg-alt, rgba(0, 0, 0, .04))}.admin-share-option-row:has(input.ui-checkbox-square:checked){box-shadow:inset 0 0 0 1.5px var(--primary, #2563eb);background:#2563eb14}.admin-share-option-row span{flex:1;min-width:0;text-align:left;font-size:.95rem;line-height:1.45;color:var(--text)}.admin-share-option-row--header{font-weight:600;border-bottom:1px solid var(--border);border-radius:0}.coding-ai-row{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;min-width:0;width:100%;max-width:100%;box-sizing:border-box}.coding-ai-row input:not([type=checkbox]):not([type=radio]),.coding-ai-row select{width:auto;min-width:0;max-width:min(420px,100%);flex:1 1 180px}.coding-ai-row input[type=number]{flex:0 1 auto;min-width:min(12rem,100%);max-width:min(16rem,100%)}.coding-ai-row input[type=number].exam-mcq-ai-count{min-width:min(14rem,100%)}.coding-ai-row .btn-secondary,.coding-ai-row button{flex-shrink:0}.coding-difficulty-row{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;min-width:0}.coding-difficulty-row select{width:auto;max-width:280px}.section{padding:4rem 0}.section-alt{background:var(--bg-alt)}.error-msg{color:var(--error);font-size:.9rem;margin-top:.25rem}.nav-link{color:var(--text-muted)!important;font-weight:500;padding:.5rem 1rem;border-radius:var(--radius);transition:color .2s var(--ease-standard),background .2s var(--ease-standard),box-shadow .25s var(--ease-out),transform .15s var(--ease-out);text-decoration:none;position:relative}.nav-link:hover{color:var(--primary)!important;background:var(--surface-hover)}.nav-link:active{transform:scale(.98)}.nav-link.active{color:var(--primary)!important;background:var(--primary-light);font-weight:600;box-shadow:var(--shadow-sm)}.landing-nav{position:sticky;top:0;z-index:100;background:#ebf2fff5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);padding:.75rem 0}.landing-hero{background:linear-gradient(165deg,#ebf2ff,#e2ebfa 42%,#d8e4fc);padding:5rem 0}.landing-hero .hero-title{color:var(--text);text-shadow:none}.landing-hero .hero-subtitle{color:var(--text-muted)}.hero-title{font-size:clamp(2rem,5vw,3.5rem);font-weight:700;line-height:1.2;color:var(--text);margin-bottom:1rem}.hero-subtitle{font-size:1.25rem;color:var(--text-muted);max-width:600px;margin:0 auto 2rem}.cta-group{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-top:1.5rem}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.feature-card{padding:1.5rem;background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);transition:box-shadow .28s var(--ease-out),transform .28s var(--ease-out),border-color .22s var(--ease-standard)}@media(prefers-reduced-motion:no-preference){.feature-card:hover{border-color:#2563eb47;box-shadow:var(--shadow-interactive);transform:translateY(-2px)}}@media(prefers-reduced-motion:reduce){.feature-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md)}}.benefits-list{list-style:none;padding:0;margin:0}.benefits-list li{padding:.5rem 0 .5rem 1.5rem;position:relative}.benefits-list li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}.faq-item{border-bottom:1px solid var(--border);padding:1rem 0}.faq-item:last-child{border-bottom:none}.faq-question{font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:.5rem 0}.faq-question:hover{color:var(--primary)}.faq-answer{color:var(--text-muted);padding-top:.5rem;line-height:1.7}.footer{background:var(--text);color:#94a3b8;padding:3rem 0 2rem;margin-top:4rem}.footer a{color:#cbd5e1}.footer a:hover{color:#fff}.btn-settings{color:var(--text)!important}img[src="/Learnrift.png"]{transition:filter .3s ease,transform .3s ease!important}[data-theme=dark] img[src="/Learnrift.png"]{filter:brightness(0) invert(1) drop-shadow(0 0 1px rgba(255,255,255,.45))}.landing-hero{position:relative;overflow:hidden;padding:8.5rem 0 6.5rem;background:var(--bg)}.landing-hero__ambient{position:absolute;top:-15%;left:50%;transform:translate(-50%);width:900px;height:450px;background:radial-gradient(circle,rgba(99,102,241,.18) 0%,rgba(168,85,247,.08) 40%,rgba(236,72,153,.03) 70%,transparent 100%);filter:blur(100px);pointer-events:none;z-index:1;animation:pulse-ambient 8s ease-in-out infinite alternate}@keyframes pulse-ambient{0%{opacity:.8;transform:translate(-50%) scale(.95)}to{opacity:1.2;transform:translate(-50%) scale(1.05)}}[data-theme=dark] .landing-hero__ambient{background:radial-gradient(circle,rgba(99,102,241,.28) 0%,rgba(168,85,247,.12) 50%,rgba(236,72,153,.05) 85%,transparent 100%)}[data-theme=eye-comfort] .landing-hero__ambient{background:radial-gradient(circle,rgba(234,88,12,.18) 0%,rgba(217,119,6,.06) 60%,transparent 100%)}.landing-hero .container{position:relative;z-index:2}.landing-hero .btn-primary{transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 10px 25px -5px #6366f166}.landing-hero .btn-primary:hover{transform:translateY(-2px);box-shadow:0 15px 30px -5px #6366f18c,0 0 25px #a855f740}.hero-title-gradient{font-size:clamp(2.5rem,6vw,4.2rem);font-weight:900;line-height:1.15;letter-spacing:-.03em;background:linear-gradient(135deg,var(--primary) 0%,#a855f7 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1.5rem}[data-theme=eye-comfort] .hero-title-gradient{background:linear-gradient(135deg,#ea580c,#d97706);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.premium-mockup-wrapper{margin-top:4.5rem;perspective:1000px}.premium-mockup{background:var(--surface-card);border:1px solid var(--border);border-radius:20px;box-shadow:0 30px 70px -15px #0f172a1f,0 0 50px #6366f10d;padding:1.5rem;transform:rotateX(4deg);transition:all .5s cubic-bezier(.4,0,.2,1);max-width:900px;margin:0 auto}.premium-mockup:hover{transform:rotateX(0) translateY(-8px);box-shadow:0 40px 80px -15px #0f172a40,0 0 60px #6366f126;border-color:#6366f159}[data-theme=dark] .premium-mockup{border-color:#ffffff14;background:#0f172ad9;-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px)}.premium-feature-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:2.5rem 2.25rem;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;box-shadow:var(--shadow-sm);text-align:left}.premium-feature-card:first-child{border-top:4px solid var(--primary)}.premium-feature-card:nth-child(2){border-top:4px solid #a855f7}.premium-feature-card:nth-child(3){border-top:4px solid #10b981}.premium-feature-card svg{transition:transform .4s cubic-bezier(.34,1.56,.64,1)}.premium-feature-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(99,102,241,.04) 0%,transparent 100%);opacity:0;transition:opacity .3s ease;pointer-events:none}.premium-feature-card:hover{transform:translateY(-8px);box-shadow:0 25px 50px -15px #6366f133}.premium-feature-card:first-child:hover{border-color:var(--primary)}.premium-feature-card:nth-child(2):hover{border-color:#a855f7}.premium-feature-card:nth-child(3):hover{border-color:#10b981}.premium-feature-card:hover svg{transform:scale(1.15) rotate(6deg)}.premium-feature-card:hover:before{opacity:1}.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.25rem;margin-top:3rem}.benefit-micro-card{display:flex;align-items:flex-start;gap:1rem;padding:1.35rem 1.25rem;background:var(--surface);border:1px solid var(--border);border-radius:14px;transition:all .3s cubic-bezier(.4,0,.2,1);text-align:left}.benefit-micro-card:hover{transform:translateY(-3px) scale(1.02);border-color:var(--primary);box-shadow:0 12px 30px -10px #6366f126;background:var(--surface-hover)}.faq-accordion{display:flex;flex-direction:column;gap:1rem;max-width:800px;margin:0 auto}.faq-card--glass{background:var(--surface-card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:all .3s ease}.faq-card--glass:hover{border-color:#6366f14d}.faq-card__trigger{width:100%;display:flex;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;background:transparent;border:none;font-weight:700;font-size:1.05rem;color:var(--text);cursor:pointer;text-align:left}.faq-card__answer{padding:0 1.5rem 1.25rem;color:var(--text-muted);font-size:.95rem;line-height:1.6;border-top:1px solid transparent;animation:slideDown .25s ease-out forwards}@keyframes slideDown{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.login-page--ambient{min-height:100vh;background:radial-gradient(at 0% 0%,rgba(99,102,241,.08) 0px,transparent 50%),radial-gradient(at 50% 0%,rgba(168,85,247,.06) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(236,72,153,.05) 0px,transparent 50%),var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2.5rem 1.5rem;position:relative;overflow:hidden}.login-page__glow{position:absolute;width:700px;height:700px;background:radial-gradient(circle,rgba(99,102,241,.18) 0%,rgba(168,85,247,.08) 50%,rgba(236,72,153,.02) 80%,transparent 100%);filter:blur(100px);pointer-events:none;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1}.login-card--glass{background:#fff9!important;border:1.5px solid rgba(255,255,255,.7)!important;border-radius:28px;padding:3rem 2.75rem;box-shadow:0 35px 80px -20px #0f172a1f,0 0 50px #6366f108,inset 0 1px #fff9!important;max-width:440px;width:100%;position:relative;z-index:2;backdrop-filter:blur(30px) saturate(110%);-webkit-backdrop-filter:blur(30px) saturate(110%);transition:all .3s ease}[data-theme=dark] .login-card--glass{background:#0f172a8c!important;border:1.5px solid rgba(255,255,255,.07)!important;box-shadow:0 35px 80px -20px #00000080,inset 0 1px #ffffff0d!important}[data-theme=eye-comfort] .login-card--glass{background:#fdf6e3a6!important;border:1.5px solid rgba(255,255,255,.7)!important;box-shadow:0 35px 80px -20px #2c22121a}.premium-input-group{margin-bottom:1.5rem;display:flex;flex-direction:column;gap:.5rem;text-align:left}.premium-input-group label{font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.premium-input-wrapper{position:relative;display:flex;align-items:center}.premium-input-wrapper svg{position:absolute;left:18px;color:var(--text-muted);pointer-events:none;transition:all .3s ease;width:18px;height:18px}.premium-input-wrapper input{width:100%;padding:.95rem 1rem .95rem 3.4rem!important;background:#ffffffb3!important;border:1.5px solid rgba(255,255,255,.4)!important;border-radius:16px;font-size:.95rem;color:var(--text);outline:none;font-weight:500;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:inset 0 2px 4px #00000005!important}.premium-input-wrapper input.captcha-input-override{padding:0 .85rem!important}[data-theme=dark] .premium-input-wrapper input{background:#0f172a66!important;border:1.5px solid rgba(255,255,255,.05)!important}.premium-input-wrapper input:focus{border-color:var(--primary)!important;background:var(--surface)!important;box-shadow:0 0 0 4px #6366f12e,inset 0 2px 4px #00000003!important}.premium-input-wrapper input:focus+svg{color:var(--primary);transform:scale(1.05)}.login-btn-submit{width:100%;padding:1rem;border-radius:16px;font-size:1.05rem;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;justify-content:center;gap:.6rem;cursor:pointer;border:none!important;background:linear-gradient(135deg,var(--primary) 0%,#a855f7 100%)!important;color:#fff!important;box-shadow:0 10px 24px -6px #6366f173!important;transition:all .3s cubic-bezier(.4,0,.2,1)!important}.login-btn-submit:hover{background:linear-gradient(135deg,var(--primary) 10%,#b55fe6 100%)!important;box-shadow:0 14px 30px -6px #6366f18c!important;transform:translateY(-2px)}.login-btn-submit:active{transform:translateY(0) scale(.98)}.login-btn-submit:disabled{opacity:.65;cursor:not-allowed;transform:none;box-shadow:none!important}.landing-nav .btn-settings{transition:all .2s ease}.landing-nav .btn-settings:hover{background:var(--surface-hover)!important;transform:rotate(30deg)}.app-shell{display:flex;min-height:100vh;width:100%;max-width:100%;min-width:0;background:var(--bg);overflow-x:clip}.app-sidebar{width:max-content;max-width:min(var(--sidebar-width-max),100vw);flex-shrink:0;background:var(--sidebar-bg);border-inline-end:1px solid var(--sidebar-border);display:flex;flex-direction:column;position:sticky;top:0;align-self:flex-start;height:100vh;overflow-y:auto;overflow-x:hidden;z-index:150;transition:transform .2s ease,box-shadow .2s ease,width .22s ease}.app-sidebar__brand{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-4);border-bottom:1px solid var(--sidebar-border);min-height:var(--topbar-height)}.app-sidebar__brand-link{display:flex;align-items:center;justify-content:flex-start;gap:var(--space-2);min-width:0;font-weight:700;font-size:var(--text-title);color:var(--text)!important;text-decoration:none}.app-sidebar__brand-mark{display:none;width:36px;height:36px;border-radius:50%;background:var(--primary-light);color:var(--primary);align-items:center;justify-content:center;font-weight:800;font-size:.85rem;flex-shrink:0}.app-sidebar__brand-text{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-sidebar:not(.app-sidebar--collapsed) .app-sidebar__brand-text{min-width:min-content;overflow:visible;text-overflow:clip}.app-sidebar__nav{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-3);flex:1}.app-sidebar__nav .nav-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);width:100%;box-sizing:border-box;position:relative;transition:all .25s cubic-bezier(.4,0,.2,1);border-left:3px solid transparent}.app-sidebar__nav .nav-link.active{background:var(--primary-light)!important;color:var(--primary)!important;border-left-color:var(--primary);font-weight:600;box-shadow:none!important}[data-theme=dark] .app-sidebar__nav .nav-link.active{background:#6366f11f!important;border-left-color:var(--primary)!important;color:var(--primary)!important}.app-sidebar__nav .nav-link__icon{flex-shrink:0;display:flex;align-items:center;justify-content:center;color:var(--text-muted)}.app-sidebar__nav .nav-link.active .nav-link__icon,.app-sidebar__nav .nav-link:hover .nav-link__icon{color:var(--primary)}.app-sidebar__nav .nav-link__label{min-width:0}@media(min-width:900px){.app-sidebar:not(.app-sidebar--collapsed) .app-sidebar__nav 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