:root{--bg-primary: #0D0D15;--bg-secondary: #141420;--bg-tertiary: #1a1a2e;--accent-primary: #836BF5;--accent-secondary: #5B4BC4;--accent-glow: rgba(131, 107, 245, .3);--text-primary: #ffffff;--text-secondary: #a0a0b0;--text-muted: #6b6b7b;--border-color: rgba(131, 107, 245, .2);--error-color: #ff6b6b;--warning-color: #ffa94d;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden}body{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{height:100%}.app-container{display:flex;flex-direction:column;height:100vh;max-width:900px;margin:0 auto;background:linear-gradient(180deg,var(--bg-secondary) 0%,var(--bg-primary) 100%)}.app-header{padding:var(--spacing-lg) var(--spacing-xl);border-bottom:1px solid var(--border-color);background:#141420cc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs)}.logo-container{display:flex;align-items:center;gap:var(--spacing-sm)}.logo-icon{width:40px;height:40px;filter:drop-shadow(0 0 10px var(--accent-glow))}.logo-svg,.logo-img{width:100%;height:100%;border-radius:50%;object-fit:cover}.app-title{font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,var(--accent-primary) 0%,var(--text-primary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:.05em}.app-subtitle{font-size:.875rem;color:var(--text-secondary);font-weight:300}.app-main{flex:1;display:flex;flex-direction:column;overflow:hidden}.chat-window{display:flex;flex-direction:column;height:100%;position:relative}.rate-limit-banner{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:linear-gradient(90deg,#ffa94d26,#ffa94d0d);border-bottom:1px solid rgba(255,169,77,.3);color:var(--warning-color);font-size:.875rem;animation:slideDown var(--transition-normal) ease-out}.warning-icon{width:18px;height:18px;flex-shrink:0}@keyframes slideDown{0%{opacity:0;transform:translateY(-100%)}to{opacity:1;transform:translateY(0)}}.messages-container{flex:1;overflow-y:auto;padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md);scroll-behavior:smooth}.messages-container::-webkit-scrollbar{width:6px}.messages-container::-webkit-scrollbar-track{background:transparent}.messages-container::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-full)}.messages-container::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}.welcome-message{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--spacing-xl);margin:auto;animation:fadeIn var(--transition-slow) ease-out}.welcome-icon{width:80px;height:80px;margin-bottom:var(--spacing-lg);filter:drop-shadow(0 0 20px var(--accent-glow));animation:pulse 3s ease-in-out infinite}.welcome-svg,.welcome-img{width:100%;height:100%;border-radius:50%;object-fit:cover}.welcome-message h2{font-size:1.5rem;font-weight:600;margin-bottom:var(--spacing-sm);background:linear-gradient(135deg,var(--accent-primary) 0%,var(--text-primary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.welcome-message p{color:var(--text-secondary);font-size:1rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.message-container{display:flex;animation:messageSlide var(--transition-normal) ease-out}.message-user{justify-content:flex-end}.message-shai{justify-content:flex-start}@keyframes messageSlide{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-bubble{display:flex;gap:var(--spacing-sm);max-width:80%}.bubble-user{flex-direction:row-reverse}.bubble-shai{flex-direction:row}.message-avatar{width:32px;height:32px;flex-shrink:0;filter:drop-shadow(0 0 8px var(--accent-glow))}.avatar-svg,.avatar-img{width:100%;height:100%;border-radius:50%;object-fit:cover}.message-content{display:flex;flex-direction:column;gap:var(--spacing-xs)}.bubble-user .message-content{align-items:flex-end}.bubble-shai .message-content{align-items:flex-start}.message-text{padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-lg);font-size:.9375rem;line-height:1.5;word-wrap:break-word;white-space:pre-wrap}.bubble-user .message-text{background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);color:var(--text-primary);border-bottom-right-radius:var(--radius-sm)}.bubble-shai .message-text{background:var(--bg-tertiary);color:var(--text-primary);border-bottom-left-radius:var(--radius-sm);box-shadow:0 0 20px var(--accent-glow),inset 0 0 0 1px var(--border-color)}.bubble-shai .message-text{white-space:normal}.bubble-shai .message-text p{margin:0 0 .75em}.bubble-shai .message-text p:last-child{margin-bottom:0}.bubble-shai .message-text h1,.bubble-shai .message-text h2,.bubble-shai .message-text h3,.bubble-shai .message-text h4{margin:1em 0 .5em;font-weight:600;color:var(--accent-secondary)}.bubble-shai .message-text h1:first-child,.bubble-shai .message-text h2:first-child,.bubble-shai .message-text h3:first-child{margin-top:0}.bubble-shai .message-text h1{font-size:1.3em}.bubble-shai .message-text h2{font-size:1.15em}.bubble-shai .message-text h3{font-size:1.05em}.bubble-shai .message-text ul,.bubble-shai .message-text ol{margin:.5em 0;padding-left:1.5em}.bubble-shai .message-text li{margin:.25em 0}.bubble-shai .message-text code{background:#836bf533;padding:.15em .4em;border-radius:4px;font-family:SF Mono,Fira Code,monospace;font-size:.9em}.bubble-shai .message-text pre{background:#0000004d;padding:.75em 1em;border-radius:var(--radius-sm);overflow-x:auto;margin:.75em 0}.bubble-shai .message-text pre code{background:transparent;padding:0;font-size:.85em}.bubble-shai .message-text blockquote{border-left:3px solid var(--accent-primary);padding-left:1em;margin:.75em 0;color:var(--text-secondary);font-style:italic}.bubble-shai .message-text a{color:var(--accent-secondary);text-decoration:underline;text-underline-offset:2px}.bubble-shai .message-text a:hover{color:var(--accent-primary)}.bubble-shai .message-text strong{font-weight:600;color:var(--text-primary)}.bubble-shai .message-text em{font-style:italic}.bubble-shai .message-text hr{border:none;border-top:1px solid var(--border-color);margin:1em 0}.bubble-shai .message-text table{border-collapse:collapse;width:100%;margin:.75em 0;font-size:.9em}.bubble-shai .message-text th,.bubble-shai .message-text td{border:1px solid var(--border-color);padding:.5em .75em;text-align:left}.bubble-shai .message-text th{background:#836bf51a;font-weight:600}.message-time{font-size:.75rem;color:var(--text-muted);padding:0 var(--spacing-sm)}.typing-indicator{display:flex;align-items:flex-start;gap:var(--spacing-sm);animation:fadeIn var(--transition-normal) ease-out}.typing-avatar{width:32px;height:32px;flex-shrink:0;filter:drop-shadow(0 0 8px var(--accent-glow))}.typing-content{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background:var(--bg-tertiary);border-radius:var(--radius-lg);border-bottom-left-radius:var(--radius-sm);box-shadow:0 0 20px var(--accent-glow),inset 0 0 0 1px var(--border-color)}.typing-text{color:var(--text-secondary);font-size:.875rem}.typing-dots{display:flex;gap:4px}.dot{width:6px;height:6px;background:var(--accent-primary);border-radius:50%;animation:bounce 1.4s ease-in-out infinite}.dot:nth-child(1){animation-delay:0s}.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-4px)}}.error-message{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);background:#ff6b6b1a;border:1px solid rgba(255,107,107,.3);border-radius:var(--radius-md);color:var(--error-color);font-size:.875rem;animation:shake .5s ease-in-out}.error-icon{width:18px;height:18px;flex-shrink:0}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-5px)}40%,80%{transform:translate(5px)}}.chat-input-container{padding:var(--spacing-md) var(--spacing-lg);background:#141420e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--border-color)}.input-wrapper{display:flex;align-items:flex-end;gap:var(--spacing-sm);padding:var(--spacing-sm);background:var(--bg-tertiary);border-radius:var(--radius-lg);border:1px solid var(--border-color);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input-wrapper:focus-within{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-glow)}.chat-textarea{flex:1;background:transparent;border:none;outline:none;color:var(--text-primary);font-family:inherit;font-size:.9375rem;padding:var(--spacing-sm) var(--spacing-md);resize:none;max-height:120px;line-height:1.5}.chat-textarea::placeholder{color:var(--text-muted)}.chat-textarea:disabled{opacity:.5;cursor:not-allowed}.send-button{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);border:none;border-radius:var(--radius-md);cursor:pointer;transition:transform var(--transition-fast),opacity var(--transition-fast),box-shadow var(--transition-fast)}.send-button:hover:not(:disabled){transform:scale(1.05);box-shadow:0 0 15px var(--accent-glow)}.send-button:active:not(:disabled){transform:scale(.95)}.send-button:disabled{opacity:.5;cursor:not-allowed}.send-icon{width:20px;height:20px;color:var(--text-primary)}@media (max-width: 640px){.app-container{max-width:100%}.app-header{padding:var(--spacing-md)}.logo-icon{width:32px;height:32px}.app-title{font-size:1.5rem}.messages-container{padding:var(--spacing-md)}.message-bubble{max-width:90%}.welcome-icon{width:60px;height:60px}.chat-input-container{padding:var(--spacing-sm) var(--spacing-md)}}@media (min-width: 641px) and (max-width: 1024px){.app-container{max-width:800px}}@media (min-width: 1025px){.app-container{border-left:1px solid var(--border-color);border-right:1px solid var(--border-color)}}