@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;600;700&family=Inter:wght@300;400;500;600;700;800;900&display=swap";.toast-container{z-index:9999;pointer-events:none;flex-direction:column;gap:12px;display:flex;position:fixed;bottom:24px;right:24px}.toast-notification{background:var(--card-bg,#fff);border:1px solid var(--border,#e5e7eb);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);pointer-events:auto;border-radius:12px;align-items:center;gap:12px;min-width:250px;max-width:350px;padding:14px 20px;animation:.3s cubic-bezier(.34,1.56,.64,1) forwards toastSlideIn,.4s 3.6s forwards toastFadeOut;display:flex;box-shadow:0 10px 25px #0000001a}.toast-success{border-left:4px solid #10b981}.toast-error{border-left:4px solid #ef4444}.toast-warning{border-left:4px solid #f59e0b}.toast-icon{flex-shrink:0;font-size:1.2rem}.toast-content{color:var(--text,#111827);font-size:.9rem;font-weight:500;line-height:1.4}@keyframes toastSlideIn{0%{opacity:0;transform:translate(50px)scale(.9)}to{opacity:1;transform:translate(0)scale(1)}}@keyframes toastFadeOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-20px)}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--primary:#0047ff;--primary-light:#0047ff14;--primary-dark:#0036d9;--primary-glow:0 4px 20px #0047ff40;--accent:#7c3aed;--accent-light:#7c3aed14;--success:#059669;--success-light:#05966914;--warning:#d97706;--warning-light:#d9770614;--danger:#dc2626;--danger-light:#dc262614;--teal:#0891b2;--teal-light:#0891b214;--text:#0b0f19;--text-secondary:#27303f;--text-muted:#3d4c61;--bg:#f8fafc;--surface:#fff;--surface-elevated:#fff;--border:#cbd5e1;--border-light:#e2e8f0;--input-bg:#f8fafc;--nav-bg:#ffffffd9;--card-bg:#fff;--footer-bg:#0b0f19;--font-body:"Inter", -apple-system, sans-serif;--font-display:"Outfit", "Space Grotesk", sans-serif;--font-mono:"JetBrains Mono", monospace;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-xs:0 1px 2px #0000000d;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -4px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000000d;--transition-fast:.15s ease;--transition:.25s cubic-bezier(.4, 0, .2, 1);--transition-spring:.4s cubic-bezier(.25, 1, .5, 1);--blue:var(--primary);--blue-lt:var(--primary-light);--purple:var(--accent);--purple-lt:var(--accent-light);--green:var(--success);--green-lt:var(--success-light);--amber:var(--warning);--amber-lt:var(--warning-light);--danger-lt:var(--danger-light);--rose:var(--danger);--rose-lt:var(--danger-light);--sans:var(--font-body);--muted:var(--text-muted);--mono:var(--font-mono)}.dark{--text:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--muted:var(--text-muted);--mono:var(--font-mono);--bg:#0c1222;--surface:#1e293b;--surface-elevated:#1e293b;--border:#475569;--border-light:#1e293b;--input-bg:#1e293b;--nav-bg:#0c1222d9;--card-bg:#1e293b;--footer-bg:#0c1222;--primary-light:#1a56db26;--accent-light:#7c3aed26;--success-light:#05966926;--warning-light:#d9770626;--danger-light:#dc262626;--teal-light:#0891b226;--shadow-sm:0 1px 3px #0003;--shadow-md:0 4px 6px #0000004d;--shadow-lg:0 10px 25px #0006;--shadow-xl:0 20px 40px #00000080}html{scroll-behavior:smooth;font-size:19.5px}body{font-family:var(--font-body);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:radial-gradient(circle at 8% 8%,#23c7f333,#0000 28rem),radial-gradient(circle at 92% 4%,#8b5cf62e,#0000 30rem),radial-gradient(circle at 18% 78%,#14b8a61a,#0000 26rem),radial-gradient(circle at 88% 72%,#f472b614,#0000 24rem),linear-gradient(#f8fbff 0%,#edf7ff 42%,#fbfdff 100%);min-height:100vh;font-size:1.05rem;position:relative;overflow-x:hidden}.dark body{background:radial-gradient(circle at 8% 8%,#23c7f314,#0000 28rem),radial-gradient(circle at 92% 4%,#8b5cf614,#0000 30rem),radial-gradient(circle at 18% 78%,#14b8a60d,#0000 26rem),radial-gradient(circle at 88% 72%,#f472b60d,#0000 24rem),linear-gradient(#070d19 0%,#0c1222 50%,#0b0f19 100%)}body:before,body:after{z-index:-1;pointer-events:none;color:#1d6ff20f;text-shadow:0 18px 42px #8b5cf614;font-weight:900;line-height:1;animation:16s ease-in-out infinite mathDrift;position:fixed}body:before{content:"∑  ∫  π  √x  ∂  f(x)  lim";max-width:220px;font-size:clamp(2rem,5.2vw,5rem);top:118px;left:-34px;transform:rotate(-12deg)}body:after{content:"∞  Δ  θ  dx  A⁻¹  σ";color:#f472b60f;max-width:230px;font-size:clamp(1.9rem,4.8vw,4.6rem);animation-delay:-7s;bottom:86px;right:-28px;transform:rotate(10deg)}.dark body:before{color:#23c7f308;text-shadow:0 18px 42px #8b5cf60a}.dark body:after{color:#f472b608}@keyframes mathDrift{0%,to{translate:0}50%{translate:0 -24px}}#root{flex-direction:column;min-height:100vh;display:flex}h1,h2,h3,h4{font-family:var(--font-display)}a{color:inherit}img{max-width:100%;height:auto}@keyframes pageUp{0%{opacity:0;transform:translateY(12px)scale(.995)}to{opacity:1;transform:translateY(0)scale(1)}}.animate-pageUp{animation:.45s cubic-bezier(.16,1,.3,1) both pageUp}@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes revealUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-16px)}to{opacity:1;transform:translateY(0)}}@keyframes drawStroke{0%{stroke-dashoffset:var(--circumference)}to{stroke-dashoffset:var(--offset)}}@keyframes barGrow{0%{width:0}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.04)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes gradientMove{0%{background-position:0%}50%{background-position:100%}to{background-position:0%}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-5px)}40%{transform:translate(5px)}60%{transform:translate(-3px)}80%{transform:translate(3px)}}@keyframes confetti-fall{0%{opacity:1;transform:translateY(-10vh)rotate(0)}to{opacity:0;transform:translateY(100vh)rotate(720deg)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.btn{font-family:var(--font-body);cursor:pointer;isolation:isolate;border:1.5px solid #0000;border-radius:30px;justify-content:center;align-items:center;gap:8px;padding:11px 24px;font-size:.88rem;font-weight:600;line-height:1.4;text-decoration:none;transition:all .3s;display:inline-flex;position:relative;overflow:hidden}.btn:after{content:"";z-index:-1;background:linear-gradient(120deg,#0000 20%,#ffffff5c,#0000 62%);transition:transform .48s;position:absolute;inset:-40% -30%;transform:translate(-72%)rotate(10deg)}.btn:hover:after{transform:translate(72%)rotate(10deg)}.btn:active{transform:scale(.96)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 16px #0047ff26}.btn-primary:hover:not(:disabled){color:var(--primary);border-color:var(--primary);background:0 0;transform:translateY(-3px);box-shadow:0 8px 24px #0047ff14}.btn-outline{-webkit-backdrop-filter:blur(12px);border-color:var(--primary);color:var(--primary);background:#ffffff73}.dark .btn-outline{border-color:var(--primary);background:#1e293b66}.btn-outline:hover:not(:disabled){background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-3px)}.btn-success{background:var(--success);color:#fff}.btn-hint{background:var(--input-bg);border:1.5px solid var(--border);color:var(--text-secondary);border-radius:30px;font-size:.8rem}.btn-hint:hover:not(:disabled){background:var(--warning-light);border-color:var(--warning);color:var(--warning);transform:translateY(-2px)scale(1.025)}.num-input{border:1.5px solid var(--border);border-radius:var(--radius-md);width:100%;font-size:.9rem;font-family:var(--font-mono);color:var(--text);background:var(--input-bg);transition:all var(--transition);text-align:center;outline:none;padding:10px 14px}.num-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.num-input.correct{border-color:var(--success);background:var(--success-light)}.num-input.incorrect{border-color:var(--danger);background:var(--danger-light);animation:.35s shake}.card{-webkit-backdrop-filter:blur(24px)saturate(150%);border-radius:var(--radius-xl);transition:all var(--transition-spring);background:radial-gradient(circle at 12% 0,#7dd3fc2e,#0000 11rem),radial-gradient(circle at 90% 12%,#f472b61f,#0000 10rem),linear-gradient(145deg,#fffc,#eef7ff80),#ffffff9e;border:1.5px solid #ffffffd1;position:relative;box-shadow:0 18px 44px #1854b724,inset 0 1px #ffffffb8}.dark .card{background:radial-gradient(circle at 12% 0,#7dd3fc14,#0000 11rem),radial-gradient(circle at 90% 12%,#f472b60f,#0000 10rem),linear-gradient(145deg,#1e293b99,#0f172ab3);border-color:#ffffff0f;box-shadow:0 18px 44px #0000004d,inset 0 1px #ffffff0d}.card:hover{border-color:#23c7f36b;transform:translateY(-7px);box-shadow:0 0 0 1px #ffffffb3,0 22px 48px #1d6ff229}.glass-card{-webkit-backdrop-filter:blur(24px)saturate(150%);border-radius:var(--radius-lg);transition:all var(--transition-spring);color:var(--text);background:radial-gradient(circle at 12% 0,#7dd3fc2e,#0000 11rem),radial-gradient(circle at 90% 12%,#f472b61f,#0000 10rem),linear-gradient(145deg,#fffc,#eef7ff80),#ffffff9e;border:1.5px solid #ffffffd1;position:relative;box-shadow:0 18px 44px #1854b724,inset 0 1px #ffffffb8}.dark .glass-card{color:var(--text);background:radial-gradient(circle at 12% 0,#7dd3fc14,#0000 11rem),radial-gradient(circle at 90% 12%,#f472b60f,#0000 10rem),linear-gradient(145deg,#1e293b99,#0f172ab3);border-color:#ffffff0f;box-shadow:0 18px 44px #0000004d,inset 0 1px #ffffff0d}.glass-card:hover{border-color:#23c7f36b;transform:translateY(-7px);box-shadow:0 0 0 1px #ffffffb3,0 22px 48px #1d6ff229}.feedback-box{border-radius:var(--radius-md);margin-top:16px;padding:12px 16px;font-size:.875rem;font-weight:600;animation:.3s fadeUp}.feedback-box.success{background:var(--success-light);border:1.5px solid var(--success);color:var(--text)}.feedback-box.error{background:var(--danger-light);border:1.5px solid var(--danger);color:var(--text)}.feedback-box.info{background:var(--primary-light);border:1.5px solid var(--primary);color:var(--text)}.feedback-box.hint{background:var(--warning-light);border:1.5px solid var(--warning);color:var(--text)}.matrix-grid{background:var(--input-bg);border-radius:var(--radius-md);border:1.5px solid var(--border);gap:6px;padding:14px;display:inline-grid}.matrix-grid input{text-align:center;border:1.5px solid var(--border);border-radius:var(--radius-sm);width:60px;height:40px;font-family:var(--font-mono);background:var(--input-bg);color:var(--text);font-size:.875rem;transition:all .15s}.matrix-grid input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light);outline:none}.quiz-card{background:var(--card-bg);border-radius:var(--radius-xl);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:all var(--transition);margin-bottom:24px;animation:.5s both slideUp;overflow:hidden}.quiz-card:not(.completed):not(.results-card){box-shadow:var(--shadow-md);border-color:#1a56db40}.quiz-card.locked{opacity:.35;pointer-events:none;filter:grayscale(.5)blur(.5px)}.quiz-card.completed{border-color:#0596694d}.quiz-card.results-card{box-shadow:var(--shadow-lg);border-color:#05966966}.quiz-card-header{align-items:flex-start;gap:14px;padding:22px 24px 14px;display:flex}.quiz-card-num{border-radius:var(--radius-md);background:var(--primary);color:#fff;width:42px;height:42px;font-family:var(--font-mono);flex-shrink:0;justify-content:center;align-items:center;font-size:.9rem;font-weight:700;display:flex}.quiz-card-num.completed{background:var(--success)}.quiz-card-title{color:var(--text);font-size:1.15rem;font-weight:700}.quiz-card-sub{color:var(--text-secondary);margin-top:3px;font-size:.85rem}.quiz-card-meta{gap:8px;margin-top:6px;display:flex}.quiz-pill{font-size:.72rem;font-family:var(--font-mono);background:var(--primary-light);color:var(--primary);border-radius:20px;padding:3px 10px;font-weight:700}.quiz-pill.retries{background:var(--input-bg);color:var(--text-muted);border:1px solid var(--border)}.quiz-card-body{padding:0 24px 24px}.quiz-card-actions{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.progress-wrap{background:var(--border-light);border-radius:2px;width:100%;height:4px;overflow:hidden}.progress-fill{background:var(--primary);border-radius:2px;height:100%;transition:width .5s}.radio-group{flex-wrap:wrap;gap:10px;display:flex}.radio-card{cursor:pointer;flex:1;min-width:130px}.radio-card input{display:none}.radio-inner{border:2px solid var(--border);border-radius:var(--radius-md);background:var(--card-bg);color:var(--text);align-items:center;gap:10px;padding:12px 14px;font-size:.875rem;font-weight:600;transition:all .15s;display:flex}.radio-icon{border-radius:var(--radius-sm);background:var(--input-bg);flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;font-size:1rem;display:flex}.radio-card input:checked+.radio-inner{border-color:var(--primary);background:var(--primary-light)}.radio-card input:checked+.radio-inner .radio-icon{background:var(--primary);color:#fff}.hint-panel{background:var(--warning-light);border:1.5px solid var(--warning);border-radius:var(--radius-md);color:var(--text);margin-top:12px;padding:16px;font-size:.85rem;line-height:1.65;animation:.3s fadeUp}.hint-panel strong{color:var(--warning)}.hint-panel ol,.hint-panel ul{margin:6px 0;padding-left:18px}.score-badge{background:var(--primary-light);border:1.5px solid var(--border);font-family:var(--font-mono);color:var(--primary);border-radius:20px;align-items:center;gap:6px;padding:5px 14px;font-size:.78rem;font-weight:700;display:inline-flex}.font-mono{font-family:var(--font-mono)}.container{max-width:1120px;margin:0 auto;padding:0 24px}.text-gradient{background:linear-gradient(135deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}@media (width<=768px){.quiz-card-header{padding:16px 18px 10px}.quiz-card-body{padding:0 18px 18px}.quiz-card-actions,.radio-group{flex-direction:column}.matrix-grid input{width:48px;height:36px;font-size:.78rem}}@keyframes slideInUp{0%{opacity:0;transform:translateY(40px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.animate-fadeUp{animation:.6s cubic-bezier(.34,1.56,.64,1) both slideInUp}.hover-lift{transition:transform .3s cubic-bezier(.25,1,.5,1),box-shadow .3s cubic-bezier(.25,1,.5,1)}.hover-lift:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)scale(1.02)}.modern-upload-card{background-color:var(--surface-elevated);border:1px solid var(--border-light);border-radius:var(--radius-xl,24px);color:var(--text);max-width:500px;box-shadow:var(--shadow-lg);margin-bottom:2rem;padding:2rem}.modern-upload-card h3{font-family:var(--font-display);color:var(--text);margin-bottom:.5rem;font-size:1.5rem;font-weight:700}.modern-upload-card p.upload-desc{color:var(--text-muted);margin-bottom:1.5rem;font-size:.9rem;line-height:1.5}.modern-dropzone{border:2px dashed var(--border);border-radius:var(--radius-lg,16px);transition:var(--transition);cursor:pointer;background-color:var(--input-bg);flex-direction:column;justify-content:center;align-items:center;margin-bottom:1.5rem;padding:2.5rem 1.5rem;display:flex;position:relative}.modern-dropzone:hover{border-color:var(--primary);background-color:var(--primary-light)}.modern-dropzone input[type=file]{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;top:0;left:0}.upload-icon-wrapper{justify-content:center;margin-bottom:1rem;font-size:3rem;display:flex}.upload-icon-wrapper img,.upload-icon-wrapper svg{object-fit:contain;width:48px;height:48px}.dropzone-title{color:var(--text);margin-bottom:.25rem;font-size:1.1rem;font-weight:600;display:block}.dropzone-sub{color:var(--text-muted);font-size:.85rem}.modern-upload-btn{background:var(--primary);color:#fff;border-radius:var(--radius-md,12px);width:100%;font-family:var(--font-body);cursor:pointer;box-shadow:0 4px 12px var(--primary-light);border:none;padding:1rem;font-size:1rem;font-weight:600;transition:all .2s}.modern-upload-btn:hover:not(:disabled){background-color:var(--primary-dark);box-shadow:0 6px 16px var(--primary-light);transform:translateY(-2px)}.modern-upload-btn:disabled{background-color:var(--border);cursor:not-allowed;box-shadow:none;transform:none}p,.unit-desc,.lab-desc,.unit-card-desc,.course-desc,.step-desc,.welcome-hero-desc,.study-plan-desc,.inst-desc-text,.dept-desc-text,.matrix-course-desc,.about-faculty-desc,.lab-card-desc-line,.pane-section-desc,.timeline-desc{font-size:1.05rem!important;line-height:1.65!important}.route-loading{background:var(--bg,#f8fafc);color:var(--text,#0f172a);justify-content:center;align-items:center;min-height:100vh;font:700 .95rem/1.4 system-ui,sans-serif;display:flex}.auth-bootstrap{background:var(--bg,#f8fafc);color:var(--text,#0f172a);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:.75rem;min-height:100vh;padding:2rem;display:flex}.auth-bootstrap h1,.auth-bootstrap p{margin:0}.auth-bootstrap p{color:var(--text-muted,#64748b)}.auth-bootstrap-spinner{border:3px solid #3b82f633;border-top-color:#2563eb;border-radius:50%;width:2.5rem;height:2.5rem;animation:.8s linear infinite auth-bootstrap-spin}@keyframes auth-bootstrap-spin{to{transform:rotate(360deg)}}.auth-degraded-banner{color:#fff7ed;z-index:10000;background:#7c2d12;justify-content:center;align-items:center;gap:1rem;padding:.65rem 1rem;font-size:.875rem;display:flex;position:fixed;top:0;left:0;right:0}.auth-degraded-banner button{color:#7c2d12;cursor:pointer;font:inherit;background:#fff7ed;border:0;border-radius:.4rem;padding:.35rem .7rem;font-weight:700}.app-error-actions{flex-wrap:wrap;justify-content:center;gap:.75rem;margin-top:.5rem;display:flex}@media (width<=640px){.auth-degraded-banner{text-align:center;flex-direction:column;align-items:stretch;gap:.4rem}}