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#667eea66}.send-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.send-button:active:not(:disabled){transform:scale(.95)}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:#fff3;border-radius:2px;transition:background .3s ease}.chat-messages::-webkit-scrollbar-thumb:hover{background:#fff6}.chat-messages{scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}.subtopics-container{margin-top:12px;display:flex;flex-direction:column;gap:8px}.subtopic-button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:8px;padding:10px 16px;color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:all .3s ease;text-align:left;position:relative;overflow:hidden}.subtopic-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66;background:linear-gradient(135deg,#5a67d8,#6b46c1)}.subtopic-button:active{transform:translateY(0)}.confirmation-container{margin-top:12px;display:flex;justify-content:center}.confirm-button{background:linear-gradient(135deg,#48bb78,#38a169);border:none;border-radius:8px;padding:12px 24px;color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #48bb784d}.confirm-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #48bb7866;background:linear-gradient(135deg,#38a169,#2f855a)}.confirm-button:active{transform:translateY(0)}.generation-progress{margin-top:12px;padding:16px;background:#0000000d;border-radius:8px;border-left:4px solid #667eea}.progress-indicator{display:flex;align-items:center;gap:12px;color:#4a5568;font-size:14px}.spinner{width:16px;height:16px;border:2px solid #e2e8f0;border-top:2px solid #667eea;border-radius:50%;animation:spin 1s linear 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#8b5cf60d}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.section-title{font-size:1.8rem;font-weight:600;color:#fff;margin:0}.section-icon{font-size:2rem;width:50px;height:50px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#8b5cf6,#06b6d4);border-radius:14px}.profile-fields{display:flex;flex-direction:column;gap:2rem}.field-group{display:flex;flex-direction:column;gap:.5rem}.field-label{font-size:1rem;font-weight:600;color:#e2e8f0;margin-bottom:.5rem}.field-container{display:flex;align-items:center;gap:1rem}.field-display{flex:1;display:flex;flex-direction:column;align-items:center;gap:1rem;padding:1rem 1.5rem;background:#0f172a66;border-radius:12px;border:1px solid rgba(148,163,184,.1)}.field-value{font-size:1.1rem;color:#fff;font-weight:500}.field-badge{padding:.25rem 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#8b5cf61a}.form-input::placeholder{color:#64748b}.form-actions{display:flex;gap:1rem;margin-top:1rem}.cancel-btn{padding:.75rem 1.5rem;background:#94a3b81a;color:#94a3b8;border:1px solid rgba(148,163,184,.2);border-radius:12px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:.9rem}.cancel-btn:hover{background:#94a3b833;color:#fff}.activity-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.activity-card{display:flex;align-items:flex-start;gap:1.5rem;padding:1.5rem;background:#0f172a66;border-radius:16px;border:1px solid rgba(148,163,184,.1);transition:all .3s ease}.activity-card:hover{transform:translateY(-4px);border-color:#06b6d44d;box-shadow:0 15px 30px #06b6d41a}.activity-icon{font-size:2rem;width:50px;height:50px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#06b6d4,#8b5cf6);border-radius:12px;flex-shrink:0}.activity-content{flex:1}.activity-title{font-size:1.1rem;font-weight:600;color:#fff;margin:0 0 .5rem}.activity-value{font-size:1.5rem;font-weight:700;color:#06b6d4;margin:0 0 .5rem}.activity-desc{font-size:.9rem;color:#94a3b8;margin:0}.logout-section{border:1px solid rgba(239,68,68,.2);background:#ef44440d}.logout-section:hover{border-color:#ef44444d;background:#ef444414}.logout-content{display:flex;justify-content:space-between;align-items:center;gap:2rem}.logout-info{flex:1}.logout-title{font-size:1.25rem;font-weight:600;color:#ef4444;margin:0 0 .5rem}.logout-desc{font-size:.95rem;color:#94a3b8;margin:0;line-height:1.5}.logout-btn{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;border-radius:12px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #ef44444d;min-width:140px;justify-content:center}.logout-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ef444466;background:linear-gradient(135deg,#dc2626,#b91c1c)}.logout-btn:active{transform:translateY(0);box-shadow:0 2px 8px #ef44444d}.logout-btn svg{width:18px;height:18px}@media (max-width: 768px){.profile-page{padding:1rem}.profile-header{flex-direction:column;text-align:center;gap:2rem;margin-top:26%}.profile-avatar-section{flex-direction:column;text-align:center;gap:1rem}.profile-stats{gap:1rem}.stat-item{min-width:80px;padding:.75rem}.stat-number{font-size:1.5rem}.profile-title{font-size:2rem}.profile-section{padding:1.5rem}.field-container{flex-direction:column;align-items:stretch}.password-section{flex-direction:column;gap:1.5rem;text-align:center}.form-actions{flex-direction:column}.activity-grid{grid-template-columns:1fr}.logout-content{flex-direction:column;gap:1.5rem;text-align:center}.logout-btn{width:100%;max-width:200px}}@media (max-width: 480px){.profile-avatar{width:80px;height:80px}.profile-title{font-size:1.8rem}.section-title{font-size:1.5rem}.activity-card{padding:1rem}.activity-icon{width:40px;height:40px;font-size:1.5rem}.logout-btn{padding:.875rem 1.25rem;font-size:.9rem}}.instructions-page{min-height:100vh;background:linear-gradient(135deg,#1e293b,#0f172a);padding:2rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.instructions-container{max-width:1200px;margin:7% auto 0}.instructions-header{text-align:center;margin-bottom:3rem}.instructions-title{font-size:3.5rem;font-weight:700;background:linear-gradient(135deg,#06b6d4,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem;line-height:1.2}.instructions-subtitle{font-size:1.3rem;color:#94a3b8;max-width:700px;margin:0 auto;line-height:1.6}.step-navigation{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:3rem;padding:1.5rem;background:#1e293b99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(148,163,184,.1);border-radius:20px}.step-nav-item{display:flex;flex-direction:column;align-items:center;padding:1.5rem 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rgba(148,163,184,.1);border-radius:24px;padding:3rem;margin-bottom:2rem}.step-header{display:flex;align-items:center;gap:2rem;margin-bottom:2.5rem}.step-icon-large{font-size:4rem;width:100px;height:100px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#8b5cf6,#06b6d4);border-radius:20px;flex-shrink:0}.step-info{flex:1}.step-title{font-size:2.2rem;font-weight:700;color:#fff;margin:0 0 .5rem}.step-description{font-size:1.2rem;color:#94a3b8;margin:0;line-height:1.5}.step-details{display:grid;grid-template-columns:2fr 1fr;gap:2rem;align-items:start}.step-explanation{background:#0f172a66;padding:2rem;border-radius:16px;border:1px solid rgba(148,163,184,.1)}.detail-title{font-size:1.3rem;font-weight:600;color:#e2e8f0;margin:0 0 1rem}.detail-text{font-size:1.1rem;color:#94a3b8;line-height:1.6;margin:0}.step-tip{display:flex;gap:1rem;padding:1.5rem;background:linear-gradient(135deg,#8b5cf61a,#06b6d41a);border-radius:16px;border:1px solid rgba(139,92,246,.2)}.tip-icon{font-size:2rem;flex-shrink:0}.tip-content{flex:1}.tip-title{font-size:1.1rem;font-weight:600;color:#fff;margin:0 0 .5rem}.tip-text{font-size:1rem;color:#94a3b8;margin:0;line-height:1.5}.step-controls{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;background:#1e293b99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(148,163,184,.1);border-radius:16px}.control-btn{padding:.75rem 1.5rem;background:linear-gradient(135deg,#8b5cf6,#06b6d4);color:#fff;border:none;border-radius:12px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:1rem}.control-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px #8b5cf64d}.control-btn:disabled{opacity:.5;cursor:not-allowed;background:#94a3b833}.step-indicator{font-size:1.1rem;font-weight:600;color:#e2e8f0;padding:.5rem 1rem;background:#0f172a66;border-radius:8px}.media-showcase{margin:4rem 0}.showcase-title{font-size:2.5rem;font-weight:700;color:#fff;text-align:center;margin-bottom:1rem}.showcase-subtitle{font-size:1.2rem;color:#94a3b8;text-align:center;margin-bottom:3rem}.media-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.media-card{padding:2.5rem;border-radius:20px;color:#fff;text-align:center;transition:all .3s ease;border:1px solid rgba(255,255,255,.1)}.media-card:hover{transform:translateY(-8px);box-shadow:0 25px 50px #0000004d}.media-icon{font-size:3.5rem;margin-bottom:1rem}.media-title{font-size:1.8rem;font-weight:700;margin:0 0 1rem}.media-description{font-size:1.1rem;margin:0 0 2rem;opacity:.9}.media-features{display:flex;flex-direction:column;gap:.75rem}.feature-item{display:flex;align-items:center;gap:.75rem;justify-content:center}.feature-check{width:20px;height:20px;background:#fff3;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700}.feature-text{font-size:1rem;font-weight:500}.quick-start{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;padding:3rem;background:#1e293b99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(148,163,184,.1);border-radius:24px;margin:4rem 0}.quick-start-title{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#06b6d4,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0 0 1rem}.quick-start-text{font-size:1.2rem;color:#94a3b8;margin:0 0 2rem;line-height:1.6}.start-learning-btn{display:flex;align-items:center;gap:.75rem;padding:1rem 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