:root{--primary: #1e293b;--secondary: #64748b;--accent: #06b6d4;--light: #f8fafc;--dark: #0f172a;--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:60px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.7;color:var(--primary);background-color:var(--light)}a{color:var(--accent);text-decoration:none;transition:var(--transition)}a:hover{opacity:.8}ul{list-style:none}header{position:fixed;top:0;left:0;width:100%;background-color:#f8fafce6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;box-shadow:0 2px 10px #0000000d}nav{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;max-width:1200px;margin:0 auto}.logo{font-size:1.5rem;font-weight:700;color:var(--accent);letter-spacing:-.5px}nav 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.9rem;border-radius:12px;font-size:.9rem;line-height:1.5;word-break:break-word;margin-bottom:0;color:var(--primary)}.chatbot-message--assistant{background-color:#fff;border:1px solid rgba(0,0,0,.07);align-self:flex-start;border-bottom-left-radius:4px}.chatbot-message--user{background-color:var(--accent);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}.chatbot-message p{margin-bottom:.4rem;color:inherit}.chatbot-message p:last-child{margin-bottom:0}.chatbot-message ul,.chatbot-message ol{padding-left:1.2rem;margin:.3rem 0;list-style:disc}.chatbot-message li{margin-bottom:.2rem}.chatbot-message strong{font-weight:600}.chatbot-message--error{background-color:#fee2e2;color:#b91c1c;align-self:stretch;text-align:center;font-size:.85rem;border-radius:8px}.chatbot-message--loading{display:flex;align-items:center;gap:4px;padding:.75rem 1rem}.chatbot-message--loading span{width:7px;height:7px;border-radius:50%;background-color:var(--secondary);animation:chatbot-dot-bounce 1.2s infinite ease-in-out}.chatbot-message--loading span:nth-child(2){animation-delay:.2s}.chatbot-message--loading span:nth-child(3){animation-delay:.4s}@keyframes chatbot-dot-bounce{0%,80%,to{transform:scale(.7);opacity:.4}40%{transform:scale(1);opacity:1}}.chatbot-send:disabled,.chatbot-input:disabled{opacity:.5;cursor:not-allowed}.chatbot-input-row{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;border-top:1px solid rgba(0,0,0,.07);background-color:#fff}.chatbot-input{flex:1;border:1px solid rgba(0,0,0,.12);border-radius:8px;padding:.55rem .8rem;font-size:.9rem;font-family:inherit;color:var(--primary);background-color:#f8fafc;outline:none;transition:border-color .2s 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