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ease;position:relative;z-index:1}.send-button.enabled{animation:colorfulBreathing 3s ease-in-out infinite}@keyframes colorfulBreathing{0%{transform:scale(1);background:linear-gradient(135deg,#646cff,#535bf2);box-shadow:0 4px 12px #646cff4d}25%{transform:scale(1.05);background:linear-gradient(135deg,#8b5cf6,#a855f7);box-shadow:0 6px 20px #8b5cf680}50%{transform:scale(1.08);background:linear-gradient(135deg,#ec4899,#f472b6);box-shadow:0 8px 24px #ec489999}75%{transform:scale(1.05);background:linear-gradient(135deg,#8b5cf6,#a855f7);box-shadow:0 6px 20px #8b5cf680}to{transform:scale(1);background:linear-gradient(135deg,#646cff,#535bf2);box-shadow:0 4px 12px #646cff4d}}.send-button.enabled:hover{background:linear-gradient(135deg,#535bf2,#747bff);animation:none;transform:scale(1.15);box-shadow:0 6px 20px #646cff99}.send-button.enabled:hover svg{transform:rotate(45deg) translate(2px) translateY(-2px)}.send-button.enabled:active{transform:scale(.95);box-shadow:0 2px 8px #646cff66}.send-button.disabled{opacity:.4;cursor:not-allowed;box-shadow:0 2px 4px #646cff33;animation:none;background:linear-gradient(135deg,#9ca3af,#6b7280)}@media(max-width:768px){.chat-input-container{padding:1.25rem 1.5rem;gap:.875rem}.chat-textarea{font-size:.95rem;padding:.75rem 1rem;min-height:48px;border-radius:24px}.send-button{width:48px;height:48px}.send-button svg{width:18px;height:18px}}@media(max-width:480px){.chat-input-container{padding:1rem 1.25rem;gap:.75rem}.chat-textarea{font-size:.9rem;padding:.625rem .875rem;min-height:44px;border-radius:22px}.send-button{width:44px;height:44px}.send-button svg{width:16px;height:16px}}.chat-input-container.disabled-state{opacity:.6;pointer-events:none;position:relative}.chat-input-container.disabled-state .chat-textarea{background:#f5f5f5;color:#999;cursor:not-allowed}.chat-input-container.disabled-state .send-button{background:#d1d5db!important;color:#9ca3af!important;cursor:not-allowed!important;animation:none!important;box-shadow:none!important}.chat-input-container.disabled-state:before{content:"⏳ Изчакайте отговора...";position:absolute;top:-40px;left:50%;transform:translate(-50%);background:#646cffe6;color:#fff;padding:.5rem 1rem;border-radius:6px;font-size:.85rem;white-space:nowrap;animation:tooltip-fade .3s ease-in-out;z-index:10;pointer-events:none}@keyframes tooltip-fade{0%{opacity:0;transform:translate(-50%) translateY(-5px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.app-container{width:100%;min-height:100vh;position:relative}.background-gradient{position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#fff,#f8f9fa,#f0f1f3);z-index:-1;pointer-events:none}.auth-loading{display:flex;align-items:center;justify-content:center;min-height:100vh}.auth-loading-spinner{width:40px;height:40px;border:3px solid rgba(100,108,255,.2);border-top-color:#646cff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}