:root{
  --text:#000;
  --bg:#fff;
  --muted:#555;
  --brand:#0b2a5c;
  --brand-ghost:#e7eef9;
}

*{box-sizing:border-box}

html,body{
  margin:0;
  padding:0;
  background:#fff;
  color:var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol", sans-serif;
  line-height:1.6;
}

/* contenedor */
.wrap{
  max-width: 860px;
  margin: 0 auto;
  padding: 0 16px;
}

/* barra superior */
.topbar{
  border-bottom:1px solid #e6e6e6;
  background:#fff;
  position:sticky;
  top:0;
  z-index:10;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:56px;
}
.brand{
  font-weight:700;
  color:var(--brand);
}

/* botones idioma */
.lang-btn{
  appearance:none;
  background:transparent;
  border:1px solid #ccc;
  color:#333;
  padding:6px 10px;
  border-radius:8px;
  margin-left:6px;
  cursor:pointer;
  font-weight:600;
}
.lang-btn.active{
  background:var(--brand-ghost);
  border-color:var(--brand);
  color:var(--brand);
}

/* documento */
.doc{
  padding: 28px 0 40px;
}
.doc h1, .doc h2{
  color:#111;
  margin: 0 0 8px;
}
.doc h1{ font-size: clamp(1.6rem, 3.8vw, 2.2rem); }
.doc h2{ font-size: clamp(1.1rem, 2.6vw, 1.4rem); margin-top: 20px; }

.doc p, .doc li{
  text-align: justify;
  font-size: 1rem;
}
.doc ul{
  margin: 0 0 8px 18px;
}

/* nota final */
.muted{
  color:var(--muted);
  font-size: .95rem;
  margin-top: 18px;
}

/* footer */
.footer{
  border-top:1px solid #e6e6e6;
  background:#fff;
  padding: 16px 0;
  color:#222;
}
.footer a{
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px dotted var(--brand);
}
.footer a:hover{
  text-decoration: underline;
}

/* responsive suave */
@media (max-width: 600px) {
  body {
    padding: 15px;
    font-size: 14px;
  }
  h1 { font-size: 20px; }
  h2 { font-size: 16px; }
}