:root {
  --verde: #0e7a4f;
  --verde-claro: #e7f5ee;
  --dorado: #c9a227;
  --texto: #1c1c1c;
  --gris: #5c5c5c;
  --borde: #e2e2e2;
  --fondo: #fafaf7;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--texto);
  background: var(--fondo);
  line-height: 1.6;
}
a { color: var(--verde); }
header {
  background: #111;
  color: #fff;
  padding: 14px 0;
}
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.logo { font-size: 1.35rem; font-weight: 800; letter-spacing: 0.2px; }
.logo span { color: #7fd6a8; }
nav a { color: #fff; text-decoration: none; margin-left: 18px; font-size: 0.95rem; }
nav a:hover { text-decoration: underline; }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 18px; }
.hero { background: var(--verde); color: #fff; padding: 44px 0 38px; }
.hero h1 { margin: 0 0 10px; font-size: 2rem; line-height: 1.2; }
.hero p { margin: 0 0 18px; font-size: 1.08rem; opacity: 0.95; }
.btn {
  display: inline-block; background: #fff; color: var(--verde);
  padding: 11px 20px; border-radius: 8px; font-weight: 700; text-decoration: none;
}
.btn-sec {
  display: inline-block; background: transparent; color: #fff;
  border: 2px solid #fff; padding: 9px 18px; border-radius: 8px;
  font-weight: 700; text-decoration: none; margin-left: 10px;
}
main { padding: 28px 0 40px; }
.card { background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 20px; margin-bottom: 18px; }
.card h2 { margin-top: 0; }
.muted { color: var(--gris); font-size: 0.92rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--borde); vertical-align: top; }
th { background: var(--verde-claro); }
tr.destacada td { background: #fffbe6; font-weight: 600; }
.table-scroll { overflow-x: auto; }
.badge { display: inline-block; background: var(--dorado); color: #111; font-size: 0.78rem; font-weight: 700; padding: 2px 8px; border-radius: 99px; }
.ad-slot {
  border: 2px dashed #c9c9c9; border-radius: 10px; text-align: center;
  color: var(--gris); padding: 22px 12px; margin: 22px 0; font-size: 0.9rem; background: #fff;
}
label { display: block; font-weight: 600; margin: 12px 0 4px; }
input {
  width: 100%; padding: 10px 12px; font-size: 1rem;
  border: 1px solid #c9c9c9; border-radius: 8px;
}
button.calc {
  margin-top: 16px; background: var(--verde); color: #fff; border: 0;
  padding: 12px 22px; border-radius: 8px; font-size: 1rem; font-weight: 700; cursor: pointer;
}
.resultado { background: var(--verde-claro); border-radius: 10px; padding: 16px; margin-top: 18px; }
.resultado .grande { font-size: 1.7rem; font-weight: 800; }
footer { background: #111; color: #bbb; padding: 26px 0; font-size: 0.9rem; }
footer a { color: #ddd; }
footer .wrap p { margin: 6px 0; }
@media (max-width: 640px) {
  .hero h1 { font-size: 1.55rem; }
  nav a { margin-left: 10px; }
  .btn-sec { margin-left: 0; margin-top: 10px; }
}