@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");:root{--transition-duration:0.3s}[data-theme=dark]{--bg-color:#000;--container-bg:hsla(0,0%,100%,.05);--border-color:hsla(0,0%,100%,.1);--text-primary:#fff;--text-secondary:#a1a1aa;--accent-color:#3b82f6;--accent-hover:#2563eb;--button-bg:hsla(0,0%,100%,.08);--button-hover:rgba(59,130,246,.2);--input-bg:hsla(0,0%,100%,.05);--particles-color:hsla(0,0%,100%,.1);--shadow-color:rgba(0,0,0,.3)}[data-theme=light]{--bg-color:#fff;--container-bg:rgba(0,0,0,.03);--border-color:rgba(0,0,0,.1);--text-primary:#000;--text-secondary:#71717a;--accent-color:#3b82f6;--accent-hover:#2563eb;--button-bg:rgba(0,0,0,.05);--button-hover:rgba(59,130,246,.1);--input-bg:rgba(0,0,0,.02);--particles-color:rgba(0,0,0,.05);--shadow-color:rgba(0,0,0,.1)}body{min-height:100vh;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg-color);overflow-x:hidden;transition:background-color var(--transition-duration) ease}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(circle at 25% 25%,var(--particles-color) 1px,transparent 1px),radial-gradient(circle at 75% 75%,var(--particles-color) 2px,transparent 2px);background-size:60px 60px,80px 80px;animation:float 20s ease-in-out infinite;pointer-events:none;z-index:-1;transition:opacity var(--transition-duration) ease}@keyframes float{0%,to{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-20px) rotate(180deg)}}.chatbot-container{max-width:100vw;min-height:100vh;margin:0;padding:60px 20px 40px;flex-direction:column;position:relative;animation:slideIn .8s ease-out;gap:24px}.chatbot-container,.theme-toggle{display:flex;align-items:center;justify-content:center}.theme-toggle{position:fixed;top:24px;right:24px;width:44px;height:44px;border-radius:12px;border:1px solid var(--border-color);background:var(--button-bg);backdrop-filter:blur(10px);color:var(--text-primary);cursor:pointer;transition:all var(--transition-duration) ease;z-index:1000;box-shadow:0 4px 16px var(--shadow-color)}.theme-toggle:hover{background:var(--button-hover);transform:scale(1.05);border-color:var(--accent-color)}@keyframes slideIn{0%{opacity:0;transform:translateY(50px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.chatbot-container h1{font-size:3rem;font-weight:800;color:var(--accent-color);text-align:center;margin:0;letter-spacing:-.02em;animation:titleGlow 3s ease-in-out infinite alternate;transition:color var(--transition-duration) ease}@keyframes titleGlow{0%{filter:brightness(1)}to{filter:brightness(1.2)}}.drone-icon{display:flex;justify-content:center;margin-bottom:0;animation:logoFloat 4s ease-in-out infinite}.logo-icon{width:120px;height:120px;border-radius:50%;background:var(--button-bg);backdrop-filter:blur(10px);border:3px solid var(--border-color);padding:12px;transition:all var(--transition-duration) ease;box-shadow:0 8px 32px var(--shadow-color)}.logo-icon:hover{transform:scale(1.1) rotate(5deg);box-shadow:0 12px 40px rgba(59,130,246,.3);border-color:var(--accent-color)}@keyframes logoFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.chatbot-container p{color:var(--text-secondary);text-align:center;font-size:1.2rem;margin:0;font-weight:400;line-height:1.5;transition:color var(--transition-duration) ease;max-width:1200px}.suggested-questions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin:0;max-width:1200px}.suggested-button{background:var(--button-bg);backdrop-filter:blur(10px);color:var(--text-primary);border:1px solid var(--border-color);border-radius:20px;padding:12px 20px;font-size:.95rem;font-weight:500;cursor:pointer;transition:all var(--transition-duration) cubic-bezier(.4,0,.2,1);animation:buttonSlideIn .6s ease-out;animation-fill-mode:both;position:relative;overflow:hidden}.suggested-button:first-child{animation-delay:.1s}.suggested-button:nth-child(2){animation-delay:.2s}.suggested-button:nth-child(3){animation-delay:.3s}.suggested-button:nth-child(4){animation-delay:.4s}@keyframes buttonSlideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.suggested-button:hover:not(:disabled){background:var(--button-hover);transform:translateY(-2px) scale(1.02);box-shadow:0 8px 25px var(--shadow-color);border-color:var(--accent-color)}.suggested-button:disabled{opacity:.6;cursor:not-allowed}form{display:flex;gap:0;margin:0;align-items:stretch;max-width:1200px;width:100%;background:var(--input-bg);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:20px;padding:6px;transition:all var(--transition-duration) ease;box-shadow:0 4px 16px var(--shadow-color)}form:focus-within{border-color:var(--accent-color);box-shadow:0 0 0 3px rgba(59,130,246,.1),0 4px 16px var(--shadow-color)}input[type=text]{flex:1;background:transparent;backdrop-filter:none;border:none;border-radius:16px;padding:18px 24px;font-size:1.1rem;color:var(--text-primary);outline:none;transition:all var(--transition-duration) ease;font-family:inherit}input[type=text]::-moz-placeholder{color:var(--text-secondary)}input[type=text]::placeholder{color:var(--text-secondary)}input[type=text]:focus{background:transparent;box-shadow:none;transform:none}button[type=submit]{background:var(--accent-color);color:#fff;border:none;border-radius:16px;padding:0 28px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all var(--transition-duration) ease;position:relative;overflow:hidden;min-width:120px;height:56px;flex-shrink:0}button[type=submit]:hover:not(:disabled){transform:scale(1.02);box-shadow:0 4px 12px rgba(59,130,246,.4);background:var(--accent-hover)}button[type=submit]:disabled{opacity:.7;cursor:not-allowed}.loading-pulse{animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.loading-spinner{display:flex;align-items:center;justify-content:center}.spinner-circle{animation:spin 1s linear infinite}@keyframes spin{0%{stroke-dashoffset:31.416;transform:rotate(0deg)}50%{stroke-dashoffset:15.708;transform:rotate(180deg)}to{stroke-dashoffset:31.416;transform:rotate(1turn)}}.typing-indicator{display:flex;gap:4px;margin-bottom:10px}.typing-indicator span{width:8px;height:8px;border-radius:50%;background:var(--text-secondary);animation:typing 1.4s ease-in-out infinite}.typing-indicator span:first-child{animation-delay:0s}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-10px);opacity:1}}.response{background:rgba(59,130,246,.15);border:1px solid rgba(59,130,246,.3);border-radius:16px;color:var(--text-primary);line-height:1.6}.error,.response{backdrop-filter:blur(10px);padding:24px;margin:0;font-size:1.1rem;animation:messageSlideIn .5s ease-out;transition:all var(--transition-duration) ease;max-width:1200px;width:100%;box-sizing:border-box}.error{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.3);border-radius:16px;color:#ef4444}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width:640px){.chatbot-container{padding:80px 16px 32px;gap:16px;min-height:100vh}.chatbot-container h1{font-size:2rem;line-height:1.2}.chatbot-container p{font-size:1rem;padding:0 8px}.suggested-questions{gap:10px;max-width:100%}.suggested-button{padding:10px 16px;font-size:.85rem;border-radius:16px;width:100%}form{flex-direction:column;gap:10px;max-width:100%;padding:8px;border-radius:16px}input[type=text]{padding:14px 18px;font-size:.95rem;border-radius:12px}button[type=submit]{align-self:stretch;height:48px;font-size:1rem;padding:0 20px;border-radius:12px;min-width:auto}.theme-toggle{top:16px;right:16px;width:40px;height:40px}.back-button{font-size:14px!important;top:16px!important;left:16px!important}.logo-icon{width:90px;height:90px;padding:8px}.error,.response{max-width:100%;padding:16px;font-size:.95rem;border-radius:12px}}@media (min-width:641px) and (max-width:1024px){.chatbot-container{padding:60px 24px 40px;gap:20px}.chatbot-container h1{font-size:2.5rem}.suggested-questions{gap:14px}.suggested-button{padding:11px 18px;font-size:.92rem}.error,.response,form{max-width:700px}}@media (min-width:1025px){.chatbot-container{gap:24px}}