:root {
  --color: #1f6feb;
  --texto: #16202a;
  --suave: #5b6b7c;
  --borde: #dbe2ea;
  --fondo: #f6f8fb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--texto);
  background: var(--fondo);
  line-height: 1.5;
}

.cabecera {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: #fff;
  border-bottom: 1px solid var(--borde);
}

.marca { font-weight: 700; }
.cabecera nav { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
a { color: var(--color); text-decoration: none; }

main { max-width: 1000px; margin: 0 auto; padding: 1.5rem; }

.heroe { padding: 2rem 0; }
.heroe h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 .5rem; }
.heroe p { color: var(--suave); max-width: 60ch; }

.boton {
  display: inline-block;
  margin-top: .5rem;
  padding: .6rem 1.1rem;
  border: 0;
  border-radius: 8px;
  background: var(--color);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}

.boton-secundario {
  padding: .45rem .9rem;
  border: 1px solid var(--borde);
  border-radius: 8px;
  background: #fff;
  color: var(--texto);
  cursor: pointer;
}

.rejilla {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.rejilla article, .tarjeta, .indicador {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 10px;
  padding: 1rem;
}

.indicador .valor { font-size: 1.8rem; font-weight: 700; }
.indicador .nombre { color: var(--suave); font-size: .9rem; }

form { display: grid; gap: .75rem; max-width: 480px; }
label { display: grid; gap: .25rem; font-size: .95rem; }
input, textarea, select {
  padding: .5rem .6rem;
  border: 1px solid var(--borde);
  border-radius: 8px;
  font: inherit;
}

.aviso { color: var(--suave); min-height: 1.2em; }
.nota { color: var(--suave); font-size: .9rem; }

.barra { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }

table { width: 100%; border-collapse: collapse; background: #fff; margin-top: .5rem; }
th, td { text-align: left; padding: .5rem; border-bottom: 1px solid var(--borde); font-size: .92rem; }

.pie { padding: 1.5rem; text-align: center; color: var(--suave); font-size: .9rem; }