:root{--primary:#004d40;--primary-light:#39796b;--primary-dark:#00251a;--accent:#00bfa5;--bg-main:#f8fbfb;--bg-card:#fff;--text-main:#1a202c;--text-muted:#4a5568;--border-color:#e2e8f0;--success:#2d6a4f;--warning:#f6ad55;--danger:#e53e3e;--info:#3182ce;--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--radius:12px;--transition:all .3s ease}[data-theme=dark]{--bg-main:#0a0e0e;--bg-card:#141b1b;--text-main:#e2e8f0;--text-muted:#a0aec0;--border-color:#2d3748}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}body{background-color:var(--bg-main);color:var(--text-main);transition:var(--transition);-webkit-font-smoothing:antialiased}button{cursor:pointer;border-radius:var(--radius);transition:var(--transition);border:none;font-weight:600}.btn-primary{background-color:var(--primary);color:#fff;padding:12px 24px}.btn-primary:hover{background-color:var(--primary-light);transform:translateY(-2px);box-shadow:0 4px 12px #004d4033}.card{background-color:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border-color);padding:20px}.impulsa-gradient{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.animate-fade-in{animation:.4s ease-out forwards fadeIn}.auto-grow-input{border:1px solid var(--border-color);resize:none;border-radius:8px;outline:none;width:100%;min-height:45px;padding:12px;font-size:1rem;transition:border-color .2s;overflow:hidden}.auto-grow-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px #004d401a}