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.client-url:before{content:"🔗";font-size:.9rem}.chat-messages{flex:1;overflow-y:auto;padding:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-lg);background:#ffffff03}.chat-empty{text-align:center;padding:var(--spacing-2xl) var(--spacing-xl);color:var(--text-tertiary);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md)}.chat-empty h3{margin:0;color:var(--text-secondary);font-size:1.3rem;font-weight:600}.chat-empty p{color:var(--text-tertiary);font-size:.95rem}.message{display:flex;flex-direction:column;max-width:75%;animation:messageSlideIn .4s ease}.message-user{align-self:flex-end}.message-assistant{align-self:flex-start}.message-content{padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-lg);line-height:1.6;word-wrap:break-word;position:relative;box-shadow:var(--shadow-sm)}.message-user 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fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.demo-loading{display:flex;align-items:center;justify-content:center;min-height:400px;font-size:1.2rem;color:var(--text-secondary)}.demo-client-selection{display:flex;align-items:center;justify-content:center;height:100%;min-height:400px;padding:var(--spacing-2xl)}.demo-client-selection-content{text-align:center;max-width:500px;width:100%}.demo-client-selection-content h2{margin:0 0 var(--spacing-md) 0;color:var(--text-primary);font-size:2rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.demo-client-selection-content p{margin:0 0 var(--spacing-2xl) 0;color:var(--text-secondary);font-size:1.1rem}.demo-client-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--spacing-lg);width:100%;max-width:800px;margin:0 auto}.demo-no-clients{text-align:center;padding:var(--spacing-2xl);color:var(--text-secondary)}.demo-client-card{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-xl);background:#ffffff0d;border:2px solid var(--border-color);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-base);text-align:center;min-height:180px;gap:var(--spacing-md)}.demo-client-card:hover{border-color:var(--primary);background:#ffffff14;transform:translateY(-4px);box-shadow:0 8px 24px #667eea33}.demo-client-card:active{transform:translateY(-2px)}.demo-client-card-logo{width:80px;height:80px;object-fit:contain;border-radius:var(--radius-md);background:#ffffff0d;padding:var(--spacing-sm)}.demo-client-card-logo-placeholder{width:80px;height:80px;border-radius:var(--radius-md);background:var(--primary-gradient);display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;color:#fff;text-transform:uppercase}.demo-client-card-name{font-size:1.1rem;font-weight:600;color:var(--text-primary);word-break:break-word;text-align:center}.demo-sidebar{width:320px;min-width:280px;display:flex;flex-direction:column;border-right:1px solid var(--border-color);background:#ffffff05;overflow:hidden}.demo-sidebar-header{padding:var(--spacing-xl);border-bottom:1px solid var(--border-color);background:#ffffff05}.demo-sidebar-header h2{margin:0 0 var(--spacing-xs) 0;color:var(--text-primary);font-size:1.3rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.demo-subtitle{margin:0;color:var(--text-tertiary);font-size:.85rem}.demo-clients-list{flex:1;overflow-y:auto;padding:var(--spacing-md)}.demo-empty-clients{padding:var(--spacing-2xl);text-align:center;color:var(--text-tertiary)}.demo-empty-clients p{margin:var(--spacing-sm) 0}.demo-empty-hint{font-size:.9rem;color:var(--text-tertiary);opacity:.7}.demo-client-item{padding:var(--spacing-xs);margin-bottom:var(--spacing-xs);background:#ffffff08;border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);overflow:hidden;box-sizing:border-box}.demo-client-item:hover{background:#ffffff0f;border-color:var(--primary);transform:translate(4px);box-shadow:var(--shadow-sm)}.demo-client-item.active{background:#667eea26;border-color:var(--primary);box-shadow:var(--shadow-glow)}.demo-client-item-content{width:100%;box-sizing:border-box;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.demo-client-item-content h3{margin:0 0 var(--spacing-xs) 0;color:var(--text-primary);font-size:1rem;font-weight:600}.demo-client-item-content .demo-client-url{margin:0 0 var(--spacing-xs) 0;color:var(--text-secondary);font-size:.8rem;word-break:break-all;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.demo-chat-badge{display:inline-block;padding:var(--spacing-xs) var(--spacing-sm);background:var(--primary-gradient);color:#fff;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;margin-top:var(--spacing-xs)}.demo-chat-area{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden;background:#ffffff03}.demo-chat-header{flex-shrink:0;padding:var(--spacing-lg) var(--spacing-xl);border-bottom:1px solid var(--border-color);background:#ffffff05;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);overflow:hidden;box-sizing:border-box;display:flex;align-items:center}.demo-btn-back{background:none;border:none;color:var(--primary-light);cursor:pointer;font-size:.95rem;font-weight:500;padding:var(--spacing-sm) 0;transition:all var(--transition-base);min-height:44px;display:flex;align-items:center;gap:var(--spacing-sm);position:relative}.demo-btn-back:before{content:"←";font-size:1.2rem;transition:transform var(--transition-base)}.demo-btn-back:hover{color:var(--primary);transform:translate(-4px)}.demo-btn-back:hover:before{transform:translate(-4px)}.demo-client-selector{display:flex;align-items:center;gap:var(--spacing-md);justify-content:center;width:100%;position:relative;z-index:1}.demo-client-selector-label{color:var(--text-secondary);font-size:.95rem;font-weight:500;white-space:nowrap}.demo-client-select{flex:1;max-width:400px;padding:var(--spacing-md) var(--spacing-lg);background:#ffffff0d;border:2px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:.95rem;font-weight:500;font-family:inherit;cursor:pointer;transition:all var(--transition-base);outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23667eea' d='M6 9L1 4h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--spacing-md) center;background-size:12px;padding-right:calc(var(--spacing-lg) + 20px)}.demo-client-select:hover{border-color:var(--primary);background-color:#ffffff14}.demo-client-select:focus{border-color:var(--primary);background-color:#ffffff14;box-shadow:0 0 0 4px #667eea1a}.demo-client-select option{background:var(--bg-secondary);color:var(--text-primary);padding:var(--spacing-sm)}.demo-chat-client-info{display:flex;justify-content:center;align-items:center;width:100%}.demo-chat-client-info h2{margin:0 0 var(--spacing-xs) 0;color:var(--text-primary);font-size:1.5rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.demo-chat-client-info .demo-client-url{color:var(--text-secondary);font-size:.9rem;margin:0;word-break:break-all;display:flex;align-items:center;gap:var(--spacing-xs)}.demo-chat-client-info .demo-client-url:before{content:"🔗";font-size:.9rem}.demo-chat-messages{flex:1;overflow-y:auto;overflow-x:hidden;padding:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-lg);scroll-behavior:smooth;-webkit-overflow-scrolling:touch;min-height:0}.demo-chat-empty{text-align:center;padding:var(--spacing-2xl) var(--spacing-xl);color:var(--text-tertiary);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md)}.demo-chat-empty h3{margin:0;color:var(--text-secondary);font-size:1.3rem;font-weight:600}.demo-chat-empty p{color:var(--text-tertiary);font-size:.95rem}.demo-no-selection{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);color:var(--text-tertiary);text-align:center}.demo-no-selection h3{margin:0 0 var(--spacing-md) 0;color:var(--text-secondary);font-size:1.5rem;font-weight:600}.demo-no-selection p{color:var(--text-tertiary);font-size:1rem}.demo-message{display:flex;flex-direction:column;max-width:75%;animation:messageSlideIn .4s ease}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(10px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.demo-message-user{align-self:flex-end}.demo-message-assistant{align-self:flex-start}.demo-message-content{padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-lg);line-height:1.6;word-wrap:break-word;position:relative;box-shadow:var(--shadow-sm)}.demo-message-user .demo-message-content{background:var(--primary-gradient);color:#fff;border-bottom-right-radius:var(--radius-sm);box-shadow:var(--shadow-md),var(--shadow-glow)}.demo-message-assistant .demo-message-content{background:#ffffff0d;color:var(--text-primary);border:1px solid var(--border-color);border-bottom-left-radius:var(--radius-sm)}.demo-message-time{font-size:.75rem;color:var(--text-tertiary);margin-top:var(--spacing-xs);padding:0 var(--spacing-sm);opacity:.7}.demo-typing-indicator{display:flex;gap:var(--spacing-xs);padding:var(--spacing-sm) 0;align-items:center}.demo-typing-indicator span{width:8px;height:8px;border-radius:50%;background:var(--primary);animation:typing 1.4s infinite;box-shadow:0 0 8px #667eea80}.demo-typing-indicator span:nth-child(2){animation-delay:.2s}.demo-typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-10px);opacity:1}}.demo-chat-input-form{flex-shrink:0;display:flex;gap:var(--spacing-md);padding:var(--spacing-xl);border-top:1px solid var(--border-color);background:#ffffff05;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.demo-chat-input{flex:1;padding:var(--spacing-md) var(--spacing-lg);background:#ffffff0d;border:2px solid var(--border-color);border-radius:var(--radius-full);font-size:.95rem;color:var(--text-primary);transition:all var(--transition-base);font-family:inherit}.demo-chat-input::placeholder{color:var(--text-tertiary)}.demo-chat-input:focus{outline:none;border-color:var(--primary);background:#ffffff14;box-shadow:0 0 0 4px #667eea1a}.demo-chat-input:disabled{background:#ffffff05;cursor:not-allowed;opacity:.6}.demo-btn-send{padding:var(--spacing-md) var(--spacing-xl);background:var(--primary-gradient);color:#fff;border:none;border-radius:var(--radius-full);font-size:.95rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-sm);position:relative;overflow:hidden;min-width:100px;display:flex;align-items:center;justify-content:center}.demo-btn-send-text{display:inline}.demo-btn-send-emoji{display:none}.demo-btn-send:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.demo-btn-send:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-lg),var(--shadow-glow)}.demo-btn-send:hover:not(:disabled):before{width:300px;height:300px}.demo-btn-send:active:not(:disabled){transform:translateY(0)}.demo-btn-send:disabled{opacity:.6;cursor:not-allowed;transform:none}@media (max-width: 768px){.demo-container{height:calc(100dvh - 120px);max-height:none;border-radius:var(--radius-md);margin:var(--spacing-md);min-height:0}.demo-chat-area{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden;height:100%}.demo-chat-header{padding:var(--spacing-md) var(--spacing-lg)}.demo-btn-back{font-size:.9rem;padding:var(--spacing-sm) 0}.demo-chat-client-info h2{font-size:1.3rem}.demo-chat-messages{padding:var(--spacing-lg);gap:var(--spacing-md);min-height:0;flex:1;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}.demo-message{max-width:85%}.demo-message-content{padding:var(--spacing-sm) var(--spacing-md);font-size:.9rem}.demo-chat-input-form{padding:var(--spacing-lg);gap:var(--spacing-sm);flex-wrap:nowrap;align-items:center;flex-shrink:0;position:relative;z-index:10}.demo-chat-input{padding:var(--spacing-md);font-size:1rem;min-height:44px;-webkit-appearance:none;border-radius:var(--radius-full)}.demo-btn-send{padding:var(--spacing-md);min-height:44px;min-width:44px;width:44px;height:44px;font-size:1.2rem;touch-action:manipulation;flex-shrink:0;display:flex;align-items:center;justify-content:center}.demo-btn-send-text{display:none}.demo-btn-send-emoji{display:inline}}@media (max-width: 480px){.demo-container{height:var(--viewport-height, 100dvh)!important;max-height:var(--viewport-height, 100dvh)!important;border-radius:0;margin:0;width:100%;border-left:none;border-right:none;border-top:none;border-bottom:none;min-height:0;overflow:hidden;position:fixed;top:0;left:0;right:0;bottom:0}.demo-client-selection{padding:var(--spacing-xl) var(--spacing-lg);min-height:auto}.demo-client-selection-content h2{font-size:1.5rem}.demo-client-selection-content p{font-size:1rem}.demo-client-cards{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:var(--spacing-md)}.demo-client-card{padding:var(--spacing-lg);min-height:150px}.demo-client-card-logo,.demo-client-card-logo-placeholder{width:60px;height:60px}.demo-client-card-logo-placeholder{font-size:1.5rem}.demo-client-card-name{font-size:1rem}.demo-chat-area{height:100%;max-height:100%;min-height:0;display:flex;flex-direction:column;overflow:hidden;position:relative}.demo-chat-header{flex-shrink:0;position:relative;z-index:10;padding:var(--spacing-md);background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);min-height:60px;display:flex;align-items:center;overflow:visible}.demo-btn-back{font-size:.85rem;padding:var(--spacing-sm) 0}.demo-chat-client-info h2{font-size:1.1rem}.demo-chat-messages{flex:1;min-height:0;overflow-y:auto!important;overflow-x:hidden;-webkit-overflow-scrolling:touch;scroll-behavior:smooth;padding:var(--spacing-md);box-sizing:border-box;display:flex;flex-direction:column;gap:var(--spacing-md);position:relative;padding-bottom:calc(var(--spacing-md) + 20px)}.demo-chat-input-form{flex-shrink:0;position:relative;z-index:10;padding:var(--spacing-md);min-height:70px;max-height:100px;background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--border-color);display:flex;align-items:center;gap:var(--spacing-sm);box-sizing:border-box}.demo-chat-input-form input{flex:1;min-width:0}.demo-btn-send{display:none!important}.demo-message{max-width:90%}.demo-message-content{padding:var(--spacing-sm);font-size:.85rem;line-height:1.5}.demo-chat-input-form{padding:var(--spacing-md);gap:var(--spacing-sm);flex-wrap:nowrap;align-items:center}.demo-chat-input{padding:var(--spacing-sm) var(--spacing-md);font-size:16px;min-height:44px;-webkit-appearance:none;border-radius:var(--radius-full)}.demo-btn-send{padding:var(--spacing-sm);min-width:44px;width:44px;min-height:44px;height:44px;font-size:1.2rem;touch-action:manipulation;flex-shrink:0;display:flex;align-items:center;justify-content:center}.demo-btn-send-text{display:none}.demo-btn-send-emoji{display:inline}.demo-message-time{font-size:.7rem}}.presentation{width:100%;min-height:100vh}.presentation-hero{position:relative;min-height:35vh;display:flex;align-items:center;justify-content:center;padding:var(--spacing-lg) var(--spacing-xl);overflow:hidden}.presentation-hero-content{max-width:1200px;width:100%;text-align:center;z-index:2;position:relative}.presentation-hero-title{font-size:clamp(2rem,4vw,3.5rem);font-weight:800;margin:0 0 var(--spacing-sm) 0;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.1;letter-spacing:-.02em}.presentation-hero-subtitle{display:block;font-size:clamp(1rem,2vw,1.5rem);font-weight:400;color:var(--text-secondary);margin-top:var(--spacing-xs);-webkit-text-fill-color:var(--text-secondary)}.presentation-hero-description{font-size:clamp(.9rem,1.3vw,1.1rem);color:var(--text-secondary);max-width:700px;margin:0 auto var(--spacing-lg);line-height:1.5}.presentation-hero-cta{display:flex;gap:var(--spacing-lg);justify-content:center;flex-wrap:wrap}.presentation-hero-visual{position:absolute;top:0;left:0;right:0;bottom:0;z-index:1;pointer-events:none}.presentation-hero-gradient{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:800px;height:800px;background:radial-gradient(circle,rgba(102,126,234,.2) 0%,transparent 70%);border-radius:50%;animation:pulse 4s ease-in-out infinite}@keyframes pulse{0%,to{transform:translate(-50%,-50%) scale(1);opacity:.5}50%{transform:translate(-50%,-50%) scale(1.1);opacity:.8}}.presentation-btn{padding:var(--spacing-md) var(--spacing-xl);border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);border:none;position:relative;overflow:hidden}.presentation-btn-primary{background:var(--primary-gradient);color:#fff;box-shadow:var(--shadow-glow)}.presentation-btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px #667eea66}.presentation-btn-secondary{background:#ffffff1a;color:var(--text-primary);border:1px solid var(--border-color)}.presentation-btn-secondary:hover{background:#ffffff26;border-color:var(--primary);transform:translateY(-2px)}.presentation-btn-outline{background:transparent;color:var(--text-primary);border:2px solid var(--border-color)}.presentation-btn-outline:hover{border-color:var(--primary);background:#667eea1a;transform:translateY(-2px)}.presentation-btn-large{padding:var(--spacing-lg) var(--spacing-2xl);font-size:1.1rem}.presentation-section{padding:var(--spacing-lg) var(--spacing-xl);position:relative}.presentation-container{max-width:1200px;margin:0 auto;width:100%}.presentation-section-title{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;text-align:center;margin:0 0 var(--spacing-sm) 0;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.presentation-section-subtitle{text-align:center;color:var(--text-secondary);font-size:1rem;margin:0 0 var(--spacing-lg) 0;max-width:600px;margin-left:auto;margin-right:auto;margin-bottom:var(--spacing-lg)}.presentation-features{background:#ffffff05}.presentation-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-md);margin-top:var(--spacing-lg)}.presentation-feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-md);transition:all var(--transition-base);position:relative;overflow:hidden}.presentation-feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary-gradient);transform:scaleX(0);transition:transform var(--transition-base)}.presentation-feature-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-lg);background:var(--bg-card-hover)}.presentation-feature-card:hover:before{transform:scaleX(1)}.presentation-feature-icon{font-size:2.5rem;margin-bottom:var(--spacing-sm);display:block}.presentation-feature-title{font-size:1.2rem;font-weight:600;margin:0 0 var(--spacing-sm) 0;color:var(--text-primary)}.presentation-feature-description{color:var(--text-secondary);line-height:1.5;margin:0;font-size:.9rem}.presentation-pricing{background:#ffffff05}.presentation-pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-xl);margin-top:var(--spacing-2xl);max-width:1000px;margin-left:auto;margin-right:auto}.presentation-pricing-single{display:flex;justify-content:center;margin-top:var(--spacing-lg);max-width:600px;margin-left:auto;margin-right:auto}.presentation-pricing-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:all var(--transition-base);position:relative;display:flex;flex-direction:column}.presentation-pricing-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-lg)}.presentation-pricing-card-featured{border:2px solid var(--primary);background:var(--bg-card-hover)}.presentation-pricing-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:var(--primary-gradient);color:#fff;padding:var(--spacing-xs) var(--spacing-lg);border-radius:var(--radius-full);font-size:.875rem;font-weight:600}.presentation-pricing-header{text-align:center;margin-bottom:var(--spacing-md)}.presentation-pricing-name{font-size:1.5rem;font-weight:600;margin:0 0 var(--spacing-md) 0;color:var(--text-primary)}.presentation-pricing-price{display:flex;align-items:baseline;justify-content:center;gap:var(--spacing-xs)}.presentation-pricing-amount{font-size:2.5rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.presentation-pricing-period{font-size:1rem;color:var(--text-secondary)}.presentation-pricing-features{list-style:none;padding:0;margin:0 0 var(--spacing-md) 0;flex:1}.presentation-pricing-features li{padding:var(--spacing-xs) 0;color:var(--text-secondary);position:relative;padding-left:var(--spacing-lg);font-size:.9rem}.presentation-pricing-features li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}.presentation-pricing-includes{margin-top:var(--spacing-md)}.presentation-pricing-includes-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0 0 var(--spacing-sm) 0}.presentation-pricing-features li strong{color:var(--text-primary);font-weight:600}.presentation-pricing-note{margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--border-color);text-align:center}.presentation-pricing-note p{margin:0;color:var(--text-secondary);font-size:.9rem;line-height:1.6}.presentation-pricing-note a{color:var(--primary);text-decoration:none;transition:color var(--transition-base)}.presentation-pricing-note a:hover{color:var(--primary-light);text-decoration:underline}.presentation-pricing-card button{width:100%;margin-top:auto}.presentation-testimonials{background:#ffffff05}.presentation-testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-md);margin-top:var(--spacing-lg)}.presentation-testimonial-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-md);transition:all var(--transition-base)}.presentation-testimonial-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-lg)}.presentation-testimonial-content{margin-bottom:var(--spacing-md)}.presentation-testimonial-text{color:var(--text-secondary);line-height:1.5;font-style:italic;margin:0;font-size:.95rem}.presentation-testimonial-author{display:flex;align-items:center;gap:var(--spacing-md)}.presentation-testimonial-avatar{width:50px;height:50px;border-radius:50%;background:var(--primary-gradient);display:flex;align-items:center;justify-content:center;font-weight:600;color:#fff;flex-shrink:0}.presentation-testimonial-name{font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.presentation-testimonial-role{font-size:.875rem;color:var(--text-secondary)}.presentation-cta{background:var(--primary-gradient);position:relative;overflow:hidden}.presentation-cta:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.1) 0%,transparent 70%);pointer-events:none}.presentation-cta-content{text-align:center;position:relative;z-index:1;max-width:800px;margin:0 auto}.presentation-cta-title{font-size:clamp(2rem,4vw,3rem);font-weight:700;margin:0 0 var(--spacing-md) 0;color:#fff}.presentation-cta-description{font-size:1.2rem;color:#ffffffe6;margin:0 0 var(--spacing-2xl) 0}.presentation-cta-buttons{display:flex;gap:var(--spacing-lg);justify-content:center;flex-wrap:wrap}.presentation-cta .presentation-btn-primary{background:#fff;color:var(--primary)}.presentation-cta .presentation-btn-primary:hover{background:#fffffff2}.presentation-cta .presentation-btn-secondary{background:#ffffff1a;color:#fff;border-color:#ffffff4d}.presentation-cta .presentation-btn-secondary:hover{background:#fff3;border-color:#ffffff80}.presentation-footer{background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:var(--spacing-lg) var(--spacing-xl)}.presentation-footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-md)}.presentation-footer-title{font-size:1.1rem;font-weight:600;margin:0 0 var(--spacing-md) 0;color:var(--text-primary)}.presentation-footer-description{color:var(--text-secondary);font-size:.9rem;line-height:1.6;margin:0}.presentation-footer-links{list-style:none;padding:0;margin:0}.presentation-footer-links li{margin-bottom:var(--spacing-sm)}.presentation-footer-links a{color:var(--text-secondary);text-decoration:none;transition:color var(--transition-base)}.presentation-footer-links a:hover{color:var(--primary)}.presentation-footer-bottom{text-align:center;padding-top:var(--spacing-md);border-top:1px solid var(--border-color);color:var(--text-tertiary);font-size:.875rem}@media (min-width: 1024px){.presentation-hero{min-height:25vh;padding:var(--spacing-md) var(--spacing-xl)}.presentation-hero-title{font-size:clamp(1.8rem,3.5vw,3rem);margin:0 0 var(--spacing-xs) 0}.presentation-hero-description{margin:0 auto var(--spacing-md);font-size:clamp(.85rem,1.2vw,1rem)}.presentation-section{padding:var(--spacing-md) var(--spacing-xl)}.presentation-section-title{font-size:clamp(1.3rem,2.5vw,1.8rem);margin:0 0 var(--spacing-xs) 0}.presentation-section-subtitle{font-size:.9rem;margin:0 0 var(--spacing-md) 0;margin-left:auto;margin-right:auto;margin-bottom:var(--spacing-md)}.presentation-features-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-sm);margin-top:var(--spacing-md)}.presentation-feature-card{padding:var(--spacing-sm)}.presentation-feature-icon{font-size:2rem;margin-bottom:var(--spacing-xs)}.presentation-feature-title{font-size:1rem;margin:0 0 var(--spacing-xs) 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input:disabled{opacity:.6;cursor:not-allowed}.login-error{padding:var(--spacing-md);background:#f5576c1a;border:1px solid rgba(245,87,108,.3);border-radius:var(--radius-md);color:var(--accent);font-size:.9rem;text-align:center}.login-button{padding:var(--spacing-md) var(--spacing-xl);background:var(--primary-gradient);color:#fff;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);margin-top:var(--spacing-sm)}.login-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-glow)}.login-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.login-switch{text-align:center;margin-top:var(--spacing-md);color:var(--text-secondary);font-size:.9rem}.login-link{background:none;border:none;color:var(--primary);cursor:pointer;text-decoration:underline;font-size:inherit;padding:0;margin-left:var(--spacing-xs);transition:color var(--transition-base)}.login-link:hover{color:var(--primary-light)}@media (max-width: 480px){.login-container{padding:var(--spacing-lg)}.login-card{padding:var(--spacing-xl)}.login-header h2{font-size:1.5rem}}.logo-container{display:flex;align-items:center;gap:10px;text-decoration:none;transition:transform var(--transition-base);margin:0;padding:0;line-height:1}.logo-container:hover{transform:scale(1.05)}.logo-image{width:60px;height:60px;flex-shrink:0;object-fit:contain;transition:transform var(--transition-base);display:block;margin:0;padding:0;vertical-align:middle}.logo-container:hover .logo-image{transform:scale(1.05)}.logo-text{font-size:1.3rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em;white-space:nowrap}@media (max-width: 768px){.logo-image{width:58px;height:58px}.logo-text{font-size:1.25rem}}@media (max-width: 480px){.logo-container{gap:8px}.logo-image{width:48px;height:48px}.logo-text{font-size:1.1rem}}.user-management{width:100%;animation:fadeIn .5s ease}.user-management-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-2xl);flex-wrap:wrap;gap:var(--spacing-lg)}.user-management-header h2{margin:0;font-size:2rem;font-weight:700;color:var(--text-primary);background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.user-management-actions{display:flex;gap:var(--spacing-md);flex-wrap:wrap}.create-user-form{background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-lg);padding:var(--spacing-2xl);border:1px solid var(--border-color);box-shadow:var(--shadow-md);margin-bottom:var(--spacing-2xl)}.create-user-form h3{margin:0 0 var(--spacing-xl) 0;color:var(--text-primary);font-size:1.5rem;font-weight:600}.form-group{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.form-group label{color:var(--text-primary);font-weight:500;font-size:.9rem}.form-group input{padding:var(--spacing-md);border:2px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-primary);font-size:1rem;transition:border-color var(--transition-base);outline:none}.form-group input:focus{border-color:var(--primary)}.form-group input:disabled{opacity:.6;cursor:not-allowed}.form-actions{display:flex;gap:var(--spacing-md);margin-top:var(--spacing-xl)}.btn-primary,.btn-secondary{padding:var(--spacing-md) var(--spacing-lg);border:none;border-radius:var(--radius-md);font-size:.95rem;font-weight:600;cursor:pointer;transition:all 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var(--border-color)}.btn-secondary:hover:not(:disabled){background:#ffffff1a;border-color:var(--primary);color:var(--primary-light);transform:translateY(-1px)}.btn-secondary:disabled{opacity:.6;cursor:not-allowed;transform:none}.error-message,.success-message{padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg);font-size:.9rem}.error-message{background:#f5576c1a;border:1px solid rgba(245,87,108,.3);color:#f5576c}.success-message{background:#4facfe1a;border:1px solid rgba(79,172,254,.3);color:#4facfe}.users-list{background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-lg);padding:var(--spacing-xl);border:1px solid var(--border-color);box-shadow:var(--shadow-md)}.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--text-secondary)}.users-table{overflow-x:auto}.users-table table{width:100%;border-collapse:collapse}.users-table thead{background:#ffffff08}.users-table th{padding:var(--spacing-md);text-align:left;color:var(--text-primary);font-weight:600;font-size:.9rem;border-bottom:2px solid var(--border-color)}.users-table td{padding:var(--spacing-md);color:var(--text-secondary);border-bottom:1px solid var(--border-color)}.users-table tbody tr:hover{background:#ffffff05}.btn-delete{padding:var(--spacing-sm) var(--spacing-md);border:none;border-radius:var(--radius-md);font-size:.85rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);background:#f5576c33;color:#f5576c;border:1px solid rgba(245,87,108,.3)}.btn-delete:hover{background:#f5576c4d;color:#ff6b7d;border-color:#f5576c80;transform:scale(1.05);box-shadow:0 4px 12px #f5576c4d}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--spacing-lg);animation:fadeIn .3s 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strong{color:var(--primary-light);font-weight:600}.modal-warning{color:var(--text-secondary)!important;font-size:.9rem!important;margin-top:var(--spacing-lg)!important}.modal-list{margin:var(--spacing-md) 0 0 var(--spacing-lg);padding:0;color:var(--text-secondary);font-size:.9rem;line-height:1.8}.modal-list li{margin-bottom:var(--spacing-xs);position:relative}.modal-list li::marker{color:var(--accent)}.modal-footer{padding:var(--spacing-xl);border-top:1px solid var(--border-color);display:flex;gap:var(--spacing-md);justify-content:flex-end;background:#ffffff05}.btn-delete-confirm{padding:var(--spacing-md) var(--spacing-xl);border:none;border-radius:var(--radius-md);font-size:.95rem;font-weight:600;cursor:pointer;transition:all 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h3{font-size:1.3rem}.modal-body{padding:var(--spacing-lg)}.modal-body p{font-size:.95rem}.modal-footer{padding:var(--spacing-lg);flex-direction:column}.modal-footer button{width:100%;min-height:44px}}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{background:#0f0f23cc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);color:var(--text-primary);padding:var(--spacing-md) var(--spacing-2xl);box-shadow:var(--shadow-md);position:sticky;top:0;z-index:100}.app-header:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--primary-gradient);opacity:.5}.app-header h1{margin:0 0 var(--spacing-sm) 0;font-size:2rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em;display:flex;align-items:center;line-height:1}.app-header h1:has(.logo-container){margin-bottom:var(--spacing-sm);background:none;-webkit-background-clip:unset;-webkit-text-fill-color:unset;background-clip:unset}.app-nav{display:flex;gap:var(--spacing-md);flex-wrap:wrap}.app-nav button{background:#667eea1a;border:1px solid var(--border-color);color:var(--text-secondary);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);cursor:pointer;font-size:.95rem;font-weight:500;transition:all var(--transition-base);position:relative;overflow:hidden}.app-nav button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--primary-gradient);transition:left var(--transition-base);z-index:-1}.app-nav button:hover{color:var(--text-primary);border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-glow)}.app-nav button:hover:before{left:0}.app-nav button.active{background:var(--primary-gradient);color:#fff;border-color:transparent;box-shadow:var(--shadow-glow)}.app-nav button.active:before{left:0}.app-main{flex:1;padding:var(--spacing-2xl);max-width:1400px;width:100%;margin:0 auto}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh;font-size:1.2rem;color:var(--text-secondary);background:var(--bg-primary)}.loading:after{content:"...";animation:dots 1.5s steps(4,end) infinite}@keyframes dots{0%,20%{content:"."}40%{content:".."}60%,to{content:"..."}}@media (max-width: 768px){.app-header{padding:var(--spacing-lg) var(--spacing-xl)}.app-header h1{font-size:1.6rem;margin-bottom:var(--spacing-md)}.app-nav{gap:var(--spacing-sm)}.app-nav button{padding:var(--spacing-sm) var(--spacing-md);font-size:.9rem;min-height:44px}.app-main{padding:var(--spacing-lg)}}@media (max-width: 480px){.app-header{padding:var(--spacing-md) var(--spacing-lg)}.app-header h1{font-size:1.4rem;margin-bottom:var(--spacing-md)}.app-nav{flex-direction:column;width:100%;gap:var(--spacing-sm)}.app-nav button{width:100%;padding:var(--spacing-md);justify-content:center}.app-main{padding:var(--spacing-md)}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--primary-gradient-hover: linear-gradient(135deg, #764ba2 0%, #667eea 100%);--secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--primary: #667eea;--primary-dark: #5568d3;--primary-light: #8b9ef5;--secondary: #764ba2;--accent: #f5576c;--bg-primary: #0f0f23;--bg-secondary: #1a1a2e;--bg-tertiary: #16213e;--bg-card: rgba(255, 255, 255, .05);--bg-card-hover: rgba(255, 255, 255, .08);--text-primary: #ffffff;--text-secondary: #b8b8d1;--text-tertiary: #8b8ba7;--border-color: rgba(255, 255, 255, .1);--border-color-hover: rgba(255, 255, 255, .2);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .1);--shadow-md: 0 4px 16px rgba(0, 0, 0, .15);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .2);--shadow-xl: 0 16px 64px rgba(0, 0, 0, .3);--shadow-glow: 0 0 20px rgba(102, 126, 234, .3);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-base: .3s ease;--transition-slow: .5s ease}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-primary);background-image:radial-gradient(at 0% 0%,rgba(102,126,234,.15) 0px,transparent 50%),radial-gradient(at 100% 0%,rgba(118,75,162,.15) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(245,87,108,.1) 0px,transparent 50%),radial-gradient(at 0% 100%,rgba(79,172,254,.1) 0px,transparent 50%);background-attachment:fixed;color:var(--text-primary);overflow-x:hidden;-webkit-text-size-adjust:100%;text-size-adjust:100%;min-height:100vh}#root{min-height:100vh;width:100%;max-width:100vw}html{scroll-behavior:smooth}*{-webkit-overflow-scrolling:touch}button{-webkit-tap-highlight-color:transparent;touch-action:manipulation;-webkit-user-select:none;user-select:none}input[type=text],input[type=url],textarea{font-size:16px}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb{background:var(--primary);border-radius:var(--radius-full);transition:background var(--transition-base)}::-webkit-scrollbar-thumb:hover{background:var(--primary-light)}::selection{background:var(--primary);color:#fff}::-moz-selection{background:var(--primary);color:#fff}@media (max-width: 480px){body{font-size:14px}}