*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--secondary-color: #8b5cf6;--accent-color: #ec4899;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--text-dark: #1f2937;--text-light: #6b7280;--glass-bg: rgba(255, 255, 255, .15);--glass-border: rgba(255, 255, 255, .3)}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2,#f093fb);background-attachment:fixed;min-height:100vh;color:var(--text-dark)}.glass-container{background:var(--glass-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:20px;border:1px solid var(--glass-border);box-shadow:0 8px 32px #1f26875e;padding:2rem;margin:1rem}.glass-card{background:#ffffff40;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:15px;border:1px solid var(--glass-border);padding:1.5rem;margin-bottom:1rem;transition:transform .3s ease,box-shadow .3s ease}.glass-card:hover{transform:translateY(-5px);box-shadow:0 12px 40px #1f268780}.navbar{background:var(--glass-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--glass-border);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:1000}.navbar-brand{font-size:1.5rem;font-weight:700;color:#fff;text-decoration:none}.navbar-menu{display:flex;gap:1.5rem;list-style:none}.navbar-menu a{color:#fff;text-decoration:none;font-weight:500;transition:color .3s ease}.navbar-menu a:hover{color:var(--accent-color)}.hero{text-align:center;padding:4rem 2rem;color:#fff}.hero h1{font-size:3rem;margin-bottom:1rem;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.hero p{font-size:1.2rem;margin-bottom:2rem;text-shadow:1px 1px 2px rgba(0,0,0,.2)}.btn{padding:.75rem 1.5rem;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s 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var(--glass-border);padding:1.5rem;text-align:center;color:#fff}.stat-card h3{font-size:2.5rem;margin-bottom:.5rem}.stat-card p{font-size:1rem;opacity:.9}.table-container{overflow-x:auto}.table{width:100%;border-collapse:collapse;background:#ffffff1a;backdrop-filter:blur(10px);border-radius:10px;overflow:hidden}.table thead{background:#fff3}.table th,.table td{padding:1rem;text-align:left;color:#fff;border-bottom:1px solid var(--glass-border)}.table tbody tr:hover{background:#ffffff1a}.alert{padding:1rem;border-radius:10px;margin-bottom:1rem;border:1px solid var(--glass-border);backdrop-filter:blur(10px)}.alert-success{background:#10b9814d;color:#fff}.alert-danger{background:#ef44444d;color:#fff}.alert-info{background:#6366f14d;color:#fff}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;backdrop-filter:blur(5px);z-index:2000;align-items:center;justify-content:center}.modal.active{display:flex}.modal-content{background:var(--glass-bg);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:20px;padding:2rem;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;color:#fff}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.close-modal{background:none;border:none;font-size:1.5rem;cursor:pointer;color:#fff}.quiz-container{max-width:800px;margin:0 auto}.question-card{background:var(--glass-bg);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:15px;padding:2rem;margin-bottom:1.5rem;color:#fff}.options-list{list-style:none;margin-top:1rem}.options-list li{margin-bottom:.75rem}.option-label{display:flex;align-items:center;padding:.75rem;border-radius:10px;cursor:pointer;transition:all .3s ease;background:#ffffff1a}.option-label:hover{background:#fff3;transform:translate(5px)}.option-label input[type=radio]{margin-right:1rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;padding:2rem}.feature-card{text-align:center;color:#fff}.feature-icon{font-size:3rem;margin-bottom:1rem}@media (max-width: 768px){.dashboard-layout{flex-direction:column}.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--glass-border)}.hero h1{font-size:2rem}.stats-grid{grid-template-columns:1fr}.navbar{flex-direction:column;gap:1rem}.navbar-menu{flex-direction:column;align-items:center;gap:.5rem}}.text-center{text-align:center}.text-white{color:#fff}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mb-2{margin-bottom:1rem}.p-2{padding:1rem}.flex{display:flex}.gap-1{gap:.5rem}.justify-between{justify-content:space-between}.align-center{align-items:center}