.landing-container{min-height:100vh;background:#ffffff}.landing-hero{padding:100px 20px 80px;text-align:center;color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);position:relative;overflow:hidden}.landing-hero:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');opacity:.3;animation:float 20s infinite linear}@keyframes float{0%{transform:translateY(0)}to{transform:translateY(-100px)}}.hero-content{max-width:1200px;margin:0 auto;position:relative;z-index:1}.hero-title{font-size:3.5rem;font-weight:800;margin-bottom:25px;text-shadow:2px 2px 8px 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.btn-primary{background:white;color:#667eea}.cta-buttons .btn-secondary{background:rgba(255,255,255,.15);color:#fff;border:2px solid white}.cta-buttons .btn-secondary:hover{background:#ffffff;color:#667eea}.landing-footer{background:#1a1a1a;color:#fff;padding:60px 20px 30px}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;margin-bottom:40px}.footer-section h3{font-size:1.5rem;margin-bottom:15px;color:#fff}.footer-section h4{font-size:1.2rem;margin-bottom:15px;color:#fff}.footer-section p{color:#ccc;line-height:1.6}.footer-section ul{list-style:none;padding:0}.footer-section ul li{margin-bottom:10px}.footer-section ul li a{color:#ccc;text-decoration:none;transition:color .3s ease}.footer-section ul li a:hover{color:#667eea}.contact-info{display:flex;flex-direction:column;gap:15px}.contact-item{display:flex;align-items:flex-start;gap:12px;color:#ccc;line-height:1.6;margin:0}.contact-icon{font-size:1.2rem;flex-shrink:0;margin-top:2px}.contact-item a{color:#ccc;text-decoration:none;transition:color .3s ease}.contact-item a:hover{color:#667eea}.footer-bottom{text-align:center;padding-top:30px;border-top:1px solid #333;color:#999}@media (max-width: 768px){.hero-title{font-size:2.2rem}.hero-subtitle{font-size:1.1rem}.hero-stats{gap:30px}.stat-number,.section-title{font-size:2rem}.section-subtitle{font-size:1rem}.features-grid,.benefits-grid,.steps-container,.feature-list{grid-template-columns:1fr}.cta-title{font-size:2rem}.cta-subtitle{font-size:1.1rem}.footer-content{grid-template-columns:1fr}}.auth-container{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.auth-card{background:white;border-radius:12px;padding:40px;box-shadow:0 10px 40px #0000001a;width:100%;max-width:450px}.auth-card h2{color:#333;margin-bottom:10px;text-align:center;font-size:28px}.info-text{text-align:center;color:#666;margin-bottom:20px;font-size:14px}.form-group label{display:block;margin-bottom:8px;color:#333;font-weight:500;font-size:14px}.form-group input{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:16px;transition:border-color .3s}.form-group input:focus{outline:none;border-color:#667eea}.password-input-wrapper{position:relative;width:100%}.password-input-wrapper input{padding-right:45px}.password-toggle-btn{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:#666;font-size:18px;padding:5px;display:flex;align-items:center;justify-content:center;transition:color 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a:hover{text-decoration:underline}.student-dashboard{min-height:100vh;display:flex;background:white}.scoreboard-section{display:flex;flex-direction:column;gap:25px;width:100%;box-sizing:border-box}.recommended-section{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1.5fr);gap:25px;width:100%;box-sizing:border-box}.recommended-card{background:white;padding:30px;border-radius:16px;box-shadow:0 4px 20px #00000014;border:1px solid #e0e0e0}.recommended-card h2{margin:0 0 15px;font-size:1.5rem;color:#333}.recommended-content h3{margin:0 0 8px;font-size:1.2rem;color:#333}.recommended-content p{margin:0 0 15px;color:#555}.recommended-info{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:15px;font-size:.9rem;color:#666}.recommended-info span{display:inline-flex;align-items:center;gap:4px}.side-cards{display:flex;flex-direction:column;gap:20px}.side-card{background:white;padding:20px 22px;border-radius:16px;box-shadow:0 4px 20px #00000014;border:1px solid #e0e0e0}.side-card h3{margin:0 0 10px;font-size:1.1rem;color:#333}.mini-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.mini-title{font-weight:600;color:#333;font-size:.95rem}.mini-meta{display:flex;gap:8px;font-size:.85rem;color:#777}.no-tests{color:#777;font-size:.9rem}.my-score-card{background:white;padding:35px;border-radius:16px;box-shadow:0 4px 20px #00000014;border:1px solid #e0e0e0;width:100%;box-sizing:border-box}.my-score-card h2{margin-top:0;margin-bottom:25px;color:#333;font-size:1.5rem;font-weight:600}.score-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-top:20px}.stat-item{text-align:center;padding:25px 20px;background:#f8f9fa;border-radius:12px;border:1px solid #e0e0e0;transition:transform .3s,background .3s,box-shadow .3s}.stat-item:hover{transform:translateY(-5px);background:white;box-shadow:0 4px 12px #667eea26}.stat-value{font-size:2.5rem;font-weight:700;color:#667eea;margin-bottom:8px}.stat-label{color:#666;font-size:.95rem;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.scoreboard-table tr.highlight{background:linear-gradient(90deg,#e3f2fd 0%,#f0f4ff 100%);font-weight:600;border-left:4px solid #667eea}.scoreboard-table tr.highlight td{color:#667eea}.tests-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:25px}.test-card{border:2px solid #f0f0f0;border-radius:12px;padding:25px;transition:all .3s;background:white;position:relative;overflow:hidden}.test-card:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);transform:scaleY(0);transition:transform .3s}.test-card:hover{box-shadow:0 8px 24px #667eea26;border-color:#667eea;transform:translateY(-5px)}.test-card:hover:before{transform:scaleY(1)}.test-card h3{margin-top:0;margin-bottom:12px;color:#333;font-size:1.2rem;font-weight:600}.test-card p{color:#666;margin:12px 0;line-height:1.6;font-size:.95rem}.test-info{display:flex;justify-content:space-between;margin:20px 0;padding:12px;background:#f8f9fa;border-radius:8px;font-size:.9rem;color:#666}.test-info span{display:flex;align-items:center;gap:6px}.btn-take-test{width:100%;padding:14px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:600;font-size:1rem;transition:all .3s;box-shadow:0 4px 12px #667eea4d}.btn-take-test:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.test-status{display:inline-block;padding:5px 10px;background:#f0f0f0;border-radius:4px;font-size:.9rem;color:#666}.no-tests,.no-data{text-align:center;color:#999;padding:60px 40px;font-size:1.1rem;background:#f8f9fa;border-radius:12px;border:2px dashed #e0e0e0}.history-section{background:white;padding:35px;border-radius:16px;box-shadow:0 4px 20px #00000014;width:100%;box-sizing:border-box}.history-section h2{margin-top:0;color:#333;margin-bottom:25px;font-size:1.5rem;font-weight:600}.history-table{overflow-x:auto;border-radius:12px;box-shadow:0 2px 8px #0000000d}.history-table table{width:100%;border-collapse:collapse;min-width:800px}.history-table th{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);padding:16px;text-align:left;font-weight:600;color:#fff;font-size:.95rem;text-transform:uppercase;letter-spacing:.5px}.history-table td{padding:16px;border-bottom:1px solid #f0f0f0;color:#555;font-size:.95rem}.history-table tbody tr{transition:all .2s}.history-row{transition:background-color .2s}.history-row:hover{background:#f8f9fa;transform:scale(1.01);box-shadow:0 2px 8px #0000000d}.history-row td{vertical-align:middle}.btn-view-analysis{padding:8px 16px;background:linear-gradient(135deg,#667eea 0%,#764ba2 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#dc3545;color:#dc3545;border-radius:8px;cursor:pointer;font-weight:500;display:flex;align-items:center;justify-content:space-between;transition:all .3s}.btn-logout-sidebar:hover{background:#dc3545;color:#fff}.dashboard-main{flex:1;margin-left:280px;min-height:100vh;width:calc(100vw - 280px);background:white}.main-header{background:white;padding:25px 40px;border-bottom:1px solid #e0e0e0;box-shadow:0 2px 5px #0000000d;width:100%}.main-header h1{margin:0;font-size:2rem;color:#333;font-weight:700}.dashboard-content{padding:30px 40px;width:100%;box-sizing:border-box}.students-section{background:white;padding:35px;border-radius:16px;box-shadow:0 4px 20px #00000014;width:100%;box-sizing:border-box}.students-header-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.students-section h2{margin:0;color:#333;font-size:1.5rem;font-weight:600}.students-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-end}.students-filters{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.students-search-input{padding:8px 12px;border-radius:8px;border:1px solid #e0e0e0;min-width:200px;font-size:.9rem}.students-filter-select{padding:8px 12px;border-radius:8px;border:1px solid #e0e0e0;background:#f8f9fa;font-size:.9rem}.students-export-buttons{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.btn-export,.btn-export-secondary{padding:8px 14px;border-radius:8px;border:none;cursor:pointer;font-size:.9rem;font-weight:500;transition:all .2s ease}.btn-export{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;box-shadow:0 3px 10px #667eea4d}.btn-export:hover{transform:translateY(-1px);box-shadow:0 5px 16px #667eea66}.btn-export-secondary{background:#f8f9fa;color:#555;border:1px solid #e0e0e0}.btn-export-secondary:hover{background:#e9ecef}.students-table{overflow-x:auto;border-radius:12px;box-shadow:0 2px 8px #0000000d}.students-table table{width:100%;border-collapse:collapse;min-width:700px}.students-table th{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);padding:16px;text-align:left;font-weight:600;color:#fff;font-size:.95rem;text-transform:uppercase;letter-spacing:.5px}.students-table td{padding:16px;border-bottom:1px solid #f0f0f0;color:#555;font-size:.95rem}.students-table tbody tr{transition:all .2s}.students-table tbody tr:hover{background:#f8f9fa;transform:scale(1.01);box-shadow:0 2px 8px #0000000d}.btn-view-scoreboard{padding:10px 20px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .3s;box-shadow:0 4px 12px #667eea4d}.btn-view-scoreboard:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.student-scoreboard-section{display:flex;flex-direction:column;gap:25px;width:100%;box-sizing:border-box}.student-info-card{background:white;padding:35px;border-radius:16px;box-shadow:0 4px 20px #00000014;border:1px solid #e0e0e0;width:100%;box-sizing:border-box}.student-info-card h2{margin-top:0;margin-bottom:25px;color:#333;font-size:1.5rem;font-weight:600}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-top:20px}.info-item{padding:20px;background:#f8f9fa;border-radius:12px;border:1px solid #e0e0e0;transition:transform .3s,background .3s,box-shadow .3s}.info-item:hover{transform:translateY(-5px);background:white;box-shadow:0 4px 12px #667eea26}.info-item strong{color:#333;margin-right:8px;font-weight:600}.info-item{color:#555;font-size:.95rem}.scoreboard-table{background:white;padding:35px;border-radius:16px;box-shadow:0 4px 20px #00000014;width:100%;box-sizing:border-box}.scoreboard-table 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