:root{--primary: #1E88E5;--secondary: #FFC107;--bg: #FFFFFF;--text: #212121;--bubble-company: #E3F2FD;--bubble-user: #1E88E5;--surface: #F5F5F5;--border: #E0E0E0;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 3px rgba(0,0,0,.1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%;width:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{overscroll-behavior:none}a{color:var(--primary);text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;outline:none}input,textarea{font-family:inherit;font-size:1rem;border:1px solid var(--border);border-radius:var(--radius-sm);padding:.75rem 1rem;width:100%;transition:border-color .2s}input:focus,textarea:focus{border-color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:600;font-size:.95rem;transition:opacity .2s,transform .1s}.btn:active{transform:scale(.97)}.btn-primary{background:var(--primary);color:#fff}.btn-secondary{background:var(--surface);color:var(--text)}