:root{--brand:#16365c;--brand2:#245b8f;--bg:#f4f6f9}
body{background:var(--bg);color:#1f2937}
.hero{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}.encuesta-container{max-width:760px}.card{border-radius:1rem}.form-control,.form-select,.btn{border-radius:.8rem}.pregunta-card .btn{min-height:56px;display:flex;align-items:center}.btn-check:checked+.btn{background:#16365c;border-color:#16365c;color:#fff}.sticky-submit{position:sticky;bottom:0;background:linear-gradient(transparent,var(--bg) 25%);z-index:5}.sticky-submit .btn{min-height:58px}.chart-wrap{position:relative;height:520px}.resultado-item{padding:.7rem 0;border-bottom:1px solid #e5e7eb}.resultados-body{min-height:100vh}@media(max-width:576px){.hero h1{font-size:1.45rem}.pregunta-card .card-body{padding:1rem}.chart-wrap{height:440px}}