:root{--primary: #6366f1;--primary-hover: #4f46e5;--bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);--glass: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--text: #f8fafc;--text-muted: #94a3b8}*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,system-ui,-apple-system,sans-serif}body{background:var(--bg-gradient);color:var(--text);min-height:100vh;display:flex;justify-content:center;align-items:center;overflow:hidden}#root{width:100%;height:100vh}.app-container{width:100%;height:100%;display:flex;flex-direction:column;padding:2rem;max-width:1200px;margin:0 auto}header{margin-bottom:2rem;text-align:center}header h1{font-size:2.5rem;font-weight:800;background:linear-gradient(to right,#818cf8,#c084fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.025em;margin-bottom:.5rem}.chat-box{flex:1;background:var(--glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:1.5rem;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 25px 50px -12px #00000080}.messages{flex:1;padding:1.5rem;overflow-y:auto;display:flex;flex-direction:column;gap:1rem}.message{max-width:80%;padding:1rem 1.25rem;border-radius:1.25rem;line-height:1.5;font-size:1rem;animation:fadeIn .3s ease-out}.message.user{align-self:flex-end;background:var(--primary);color:#fff}.message.ai{align-self:flex-start;background:var(--glass);border:1px solid var(--glass-border)}.input-area{padding:1.5rem;background:#0003;border-top:1px solid var(--glass-border)}.input-container{display:flex;align-items:center;gap:1rem;background:var(--glass);border:1px solid var(--glass-border);border-radius:1rem;padding:.5rem 1rem;transition:all .2s}.input-container:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px #6366f133}input[type=text]{flex:1;background:transparent;border:none;color:#fff;padding:.75rem 0;font-size:1rem;outline:none}.actions{display:flex;gap:.5rem}.icon-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:.5rem;border-radius:.5rem;transition:all .2s;display:flex;align-items:center;justify-content:center}.icon-btn:hover{color:var(--text);background:var(--glass)}.send-btn{background:var(--primary);color:#fff!important}.send-btn:hover{background:var(--primary-hover)!important}.file-preview{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.5rem}.file-item{background:var(--glass);padding:.25rem .75rem;border-radius:9999px;font-size:.875rem;display:flex;align-items:center;gap:.5rem;border:1px solid var(--glass-border)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.messages::-webkit-scrollbar{width:6px}.messages::-webkit-scrollbar-track{background:transparent}.messages::-webkit-scrollbar-thumb{background:var(--glass-border);border-radius:3px}