body{margin:0}.header{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 2px 10px #0000001a;left:0;padding:1rem 0;position:fixed;right:0;top:0;transition:all .3s ease;z-index:1000}.header.scrolled{box-shadow:0 4px 20px #0003;padding:.5rem 0}.header .container{justify-content:space-between;margin:0 auto;max-width:1200px;padding:0 2rem}.header .container,.logo{align-items:center;display:flex}.logo{color:#fff;font-size:1.5rem;font-weight:700;gap:.5rem;text-decoration:none;transition:transform .3s ease}.logo:hover{transform:scale(1.05)}.logo-icon{animation:bounce 2s infinite;font-size:2rem}.logo-text{-webkit-text-fill-color:#0000;background:linear-gradient(45deg,#fff,#f0f0f0);-webkit-background-clip:text;background-clip:text}.nav{display:flex;gap:2rem}.nav-link{color:#fff;font-weight:500;padding:.5rem 0;position:relative;text-decoration:none;transition:all .3s ease}.nav-link:after{background:#fff;bottom:0;content:"";height:2px;left:0;position:absolute;transition:width .3s ease;width:0}.nav-link:hover:after{width:100%}.nav-link:hover{transform:translateY(-2px)}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@media (max-width:768px){.nav{gap:1rem}.logo-text{font-size:1.2rem}}.footer{background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;margin-top:4rem;padding:3rem 0 1rem}.footer .container{margin:0 auto;max-width:1200px;padding:0 2rem}.footer-content{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-bottom:2rem}.footer-section h3{-webkit-text-fill-color:#0000;background:linear-gradient(45deg,#fff,#a8c0ff);-webkit-background-clip:text;background-clip:text;font-size:1.5rem;margin-bottom:1rem}.footer-section h4{color:#a8c0ff;font-size:1.2rem;margin-bottom:1rem}.footer-section p{line-height:1.6;opacity:.9}.footer-section ul{list-style:none;padding:0}.footer-section ul li{margin-bottom:.5rem}.footer-section a{color:#fff;display:inline-block;opacity:.8;text-decoration:none;transition:all .3s ease}.footer-section a:hover{color:#a8c0ff;opacity:1;transform:translateX(5px)}.social-links{display:flex;flex-direction:column;gap:.75rem}.social-link{align-items:center;border-radius:5px;display:flex;gap:.5rem;padding:.5rem;transition:all .3s ease}.social-link:hover{background:#ffffff1a;transform:translateX(10px)}.social-link i{font-size:1.2rem}.footer-bottom{border-top:1px solid #fff3;opacity:.8;padding-top:2rem;text-align:center}@media (max-width:768px){.footer-content{gap:2rem;grid-template-columns:1fr}}.home{padding-top:80px}.hero{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;justify-content:center;min-height:500px;overflow:hidden;padding:6rem 2rem;position:relative}.hero-content{max-width:800px;position:relative;text-align:center;z-index:2}.hero-title{font-size:3.5rem;font-weight:800;margin-bottom:1rem;text-shadow:2px 2px 4px #0003}.hero-subtitle{font-size:1.5rem;margin-bottom:2rem;opacity:.95}.hero-buttons{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.btn{border-radius:50px;display:inline-block;font-weight:600;padding:1rem 2rem;text-decoration:none;transition:all .3s ease}.btn-primary{background:#fff;box-shadow:0 4px 15px #0003;color:#667eea}.btn-primary:hover{box-shadow:0 6px 20px #0000004d;transform:translateY(-3px)}.btn-secondary{background:#fff3;border:2px solid #fff;color:#fff}.btn-secondary:hover{background:#fff;color:#667eea;transform:translateY(-3px)}.hero-animation{height:100%;left:0;pointer-events:none;position:absolute;top:0;width:100%}.floating-card{animation:float 3s ease-in-out infinite;font-size:4rem;opacity:.3;position:absolute}.card-1{animation-delay:0s;left:10%;top:20%}.card-2{animation-delay:1s;right:15%;top:60%}.card-3{animation-delay:2s;bottom:20%;left:20%}.section{padding:4rem 2rem}.container{margin:0 auto;max-width:1200px}.section-title{-webkit-text-fill-color:#0000;animation:fadeIn 1s ease-in;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;background-clip:text;font-size:2.5rem;margin-bottom:3rem;text-align:center}.topics-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.topic-card{animation:slideUp .5s ease-out forwards;background:#fff;border-radius:15px;box-shadow:0 4px 15px #0000001a;opacity:0;padding:2rem;text-align:center;transform:translateY(30px);transition:all .3s ease}.topic-card:hover{box-shadow:0 8px 25px #667eea4d;transform:translateY(-10px)}.topic-icon{font-size:3rem;margin-bottom:1rem}.topic-card h3{color:#333;margin-bottom:.5rem}.topic-card p{color:#666}.questions-section{background:#f8f9fa}.filters{display:flex;flex-wrap:wrap;gap:2rem;justify-content:center;margin-bottom:2rem}.filter-group{align-items:center;display:flex;gap:.5rem}.filter-group label{color:#333;font-weight:600}.filter-group select{border:2px solid #ddd;border-radius:8px;font-size:1rem;padding:.5rem 1rem;transition:all .3s ease}.filter-group select:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;outline:none}.questions-list{grid-gap:1.5rem;display:grid;gap:1.5rem}.question-card{animation:slideUp .5s ease-out forwards;background:#fff;border-left:4px solid #0000;border-radius:12px;box-shadow:0 2px 10px #00000014;opacity:0;padding:1.5rem;transform:translateY(20px);transition:all .3s ease}.question-card:hover{border-left-color:#667eea;box-shadow:0 4px 20px #0000001f;transform:translateX(5px)}.question-header{align-items:flex-start;display:flex;gap:1rem;justify-content:space-between;margin-bottom:1rem}.question-header h3{color:#333;flex:1 1;font-size:1.2rem}.difficulty-badge{border-radius:20px;font-size:.85rem;font-weight:600;padding:.3rem .8rem;text-transform:uppercase;white-space:nowrap}.difficulty-badge.easy{background:#d4edda;color:#155724}.difficulty-badge.medium{background:#fff3cd;color:#856404}.difficulty-badge.hard{background:#f8d7da;color:#721c24}.question-meta{margin-bottom:1rem}.topic-tag{background:#e7f3ff;border-radius:6px;color:#06c;display:inline-block;font-size:.9rem;padding:.4rem .8rem}.question-resources{display:flex;flex-wrap:wrap;gap:1rem}.resource-link{align-items:center;border-radius:8px;display:flex;font-weight:500;gap:.5rem;padding:.6rem 1.2rem;text-decoration:none;transition:all .3s ease}.resource-link.youtube{background:red;color:#fff}.resource-link.youtube:hover{background:#c00;transform:scale(1.05)}.resource-link.pdf{background:#dc3545;color:#fff}.resource-link.pdf:hover{background:#c82333;transform:scale(1.05)}.units-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.unit-card{animation:slideUp .5s ease-out forwards;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:15px;color:#fff;opacity:0;padding:2rem;text-align:center;transform:translateY(30px);transition:all .3s ease}.unit-card:hover{box-shadow:0 10px 30px #667eea66;transform:translateY(-10px) scale(1.02)}.unit-number{font-size:3rem;font-weight:800;margin-bottom:1rem;opacity:.9}.unit-card h3{margin-bottom:.5rem}.unit-card p{margin-bottom:1.5rem;opacity:.9}.download-btn{background:#fff;border:none;border-radius:25px;color:#667eea;cursor:pointer;display:inline-block;font-family:inherit;font-size:1rem;font-weight:600;padding:.8rem 1.5rem;text-decoration:none;transition:all .3s ease}.download-btn:hover{box-shadow:0 4px 15px #ffffff4d;transform:scale(1.1)}.download-btn i{margin-right:.5rem}.loader{color:#666;font-size:1.2rem;padding:3rem;text-align:center}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes float{0%,to{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-20px) rotate(5deg)}}.fade-in{animation:fadeIn 1s ease-in}.slide-up{animation:slideUp .8s ease-out}.slide-up.delay-1{animation-delay:.2s;animation-fill-mode:backwards}@media (max-width:768px){.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.2rem}.section-title{font-size:2rem}.filter-group,.filters{align-items:stretch;flex-direction:column}.question-header{flex-direction:column}}.admin-login{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;min-height:calc(100vh - 200px);padding:2rem}.login-container{animation:slideUp .6s ease-out;max-width:450px;width:100%}.login-card{background:#fff;border-radius:20px;box-shadow:0 10px 40px #0003;padding:3rem}.login-header{margin-bottom:2rem;text-align:center}.login-header h2{color:#333;font-size:2rem;margin-bottom:.5rem}.login-header p{color:#666}.form-group{margin-bottom:1.5rem}.form-group label{display:block}.form-group input{border:2px solid #ddd;border-radius:8px;font-size:1rem;padding:.8rem;transition:all .3s ease;width:100%}.form-group input:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;outline:none}.login-btn{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1.1rem;font-weight:600;padding:1rem;transition:all .3s ease;width:100%}.login-btn:hover{box-shadow:0 4px 15px #667eea66;transform:translateY(-2px)}.error-message{animation:shake .5s;background:#f8d7da;border-radius:8px;color:#721c24;margin-bottom:1.5rem;padding:1rem;text-align:center}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes shake{0%,to{transform:translateX(0)}25%{transform:translateX(-10px)}75%{transform:translateX(10px)}}.admin-dashboard{background:#f5f6fa;min-height:calc(100vh - 200px);padding-top:80px}.dashboard-header{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 15px #0000001a;color:#fff;display:flex;justify-content:space-between;padding:2rem}.dashboard-header h1{font-size:2rem;margin:0}.logout-btn{background:#fff;border:none;border-radius:8px;color:#667eea;cursor:pointer;font-weight:600;padding:.6rem 1.5rem;transition:all .3s ease}.logout-btn:hover{box-shadow:0 4px 10px #ffffff4d;transform:scale(1.05)}.dashboard-tabs{background:#fff;box-shadow:0 2px 5px #0000000d;display:flex;gap:0}.tab{background:#fff;border:none;border-bottom:3px solid #0000;color:#666;cursor:pointer;flex:1 1;font-size:1rem;font-weight:600;padding:1rem 2rem;transition:all .3s ease}.tab:hover{background:#f8f9fa;color:#667eea}.tab.active{background:#fff;border-bottom-color:#667eea;color:#667eea}.dashboard-content{margin:0 auto;max-width:1400px;padding:2rem}.questions-management{grid-gap:2rem;display:grid;gap:2rem}.form-section{background:#fff;border-radius:15px;box-shadow:0 2px 10px #00000014;padding:2rem}.form-section h2{color:#333;margin-bottom:1.5rem}.form-row{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-bottom:1.5rem}.form-group{display:flex;flex-direction:column}.form-group label{color:#333;font-weight:600;margin-bottom:.5rem}.form-group input,.form-group select{border:2px solid #ddd;border-radius:8px;font-size:1rem;padding:.8rem;transition:all .3s ease}.form-group input:focus,.form-group select:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;outline:none}.form-actions{display:flex;gap:1rem}.submit-btn{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:8px;color:#fff;cursor:pointer;font-weight:600;padding:.8rem 2rem;transition:all .3s ease}.submit-btn:hover{box-shadow:0 4px 15px #667eea66;transform:translateY(-2px)}.cancel-btn{background:#6c757d;border:none;border-radius:8px;color:#fff;cursor:pointer;font-weight:600;padding:.8rem 2rem;transition:all .3s ease}.cancel-btn:hover{background:#5a6268;transform:translateY(-2px)}.questions-list-admin{background:#fff;border-radius:15px;box-shadow:0 2px 10px #00000014;padding:2rem}.questions-list-admin h2{color:#333;margin-bottom:1.5rem}.table-container{overflow-x:auto}table{border-collapse:collapse;width:100%}thead{background:#f8f9fa}th{border-bottom:2px solid #ddd;color:#333;font-weight:600;text-align:left}td,th{padding:1rem}td{border-bottom:1px solid #eee}tbody tr{transition:background .2s ease}tbody tr:hover{background:#f8f9fa}.badge{border-radius:15px;font-size:.85rem;font-weight:600;padding:.3rem .8rem;text-transform:uppercase}.badge.easy{background:#d4edda;color:#155724}.badge.medium{background:#fff3cd;color:#856404}.badge.hard{background:#f8d7da;color:#721c24}.resource-badge{font-size:1.2rem;margin:0 .25rem}.delete-btn,.edit-btn{border:none;border-radius:6px;cursor:pointer;font-weight:600;margin-right:.5rem;padding:.4rem 1rem;transition:all .2s ease}.edit-btn{background:#28a745;color:#fff}.edit-btn:hover{background:#218838;transform:scale(1.05)}.delete-btn{background:#dc3545;color:#fff}.delete-btn:hover{background:#c82333;transform:scale(1.05)}.notes-upload{background:#fff;border-radius:15px;box-shadow:0 2px 10px #00000014;padding:2rem}.notes-upload h2{color:#333;margin-bottom:.5rem}.upload-info{color:#666;margin-bottom:2rem}.upload-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.upload-card{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;color:#fff;padding:2rem;text-align:center;transition:all .3s ease}.upload-card:hover{box-shadow:0 8px 20px #667eea66;transform:translateY(-5px)}.upload-card h3{font-size:1.5rem;margin-bottom:1rem}.upload-btn{background:#fff;border-radius:8px;color:#667eea;cursor:pointer;display:inline-block;font-weight:600;padding:.8rem 1.5rem;transition:all .3s ease}.upload-btn:hover{box-shadow:0 4px 10px #ffffff4d;transform:scale(1.05)}@media (max-width:768px){.dashboard-header{gap:1rem;text-align:center}.dashboard-header,.dashboard-tabs{flex-direction:column}.form-row{grid-template-columns:1fr}.table-container{font-size:.9rem}}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f8f9fa;color:#333;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.App{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1 1}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#764ba2}*{transition:background-color .3s ease,color .3s ease}::selection{background:#667eea;color:#fff}::-moz-selection{background:#667eea;color:#fff}
/*# sourceMappingURL=main.2c9e7772.css.map*/