/* ============================================
   Calculadora de Nómina España — estilo base
   Serio / profesional / confianza (tipo banca-gestoría)
   ============================================ */

:root {
  --azul-900: #0b2545;
  --azul-800: #10315e;
  --azul-700: #14417a;
  --azul-600: #1a56a0;
  --azul-100: #e8eef7;
  --verde-600: #1c7c54;
  --verde-100: #e6f4ec;
  --gris-900: #1c2430;
  --gris-700: #445066;
  --gris-500: #6b7688;
  --gris-300: #d6dce6;
  --gris-100: #f4f6fa;
  --blanco: #ffffff;
  --rojo-600: #b3261e;
  --sombra: 0 4px 18px rgba(11, 37, 69, 0.08);
  --radio: 10px;
  --fuente: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--fuente);
  color: var(--gris-900);
  background: var(--gris-100);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--azul-600); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

.contenedor {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--azul-900);
  color: var(--blanco);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

.site-header .contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  color: var(--blanco);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo:hover { text-decoration: none; opacity: 0.9; }
.logo .punto { color: #4fd1a5; }

.nav-principal {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-principal a {
  color: #cfdcef;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-principal a:hover,
.nav-principal a.activo {
  background: rgba(255,255,255,0.08);
  color: var(--blanco);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--blanco);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 1rem;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--azul-900) 0%, var(--azul-700) 100%);
  color: var(--blanco);
  padding: 56px 0 64px;
}
.hero h1 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  margin: 0 0 14px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.hero p {
  font-size: 1.08rem;
  color: #d7e2f2;
  max-width: 640px;
  margin: 0 0 0;
}
.migas {
  font-size: 0.85rem;
  color: #a9bede;
  margin-bottom: 14px;
}
.migas a { color: #a9bede; }

/* ---------- Tarjetas de herramientas (home) ---------- */
.grid-herramientas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: -36px 0 48px;
}

.tarjeta {
  background: var(--blanco);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  padding: 24px;
  border: 1px solid var(--gris-300);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.tarjeta:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(11,37,69,0.14);
}
.tarjeta .icono {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--azul-100);
  color: var(--azul-700);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 14px;
}
.tarjeta h3 { margin: 0 0 8px; font-size: 1.1rem; }
.tarjeta p { margin: 0 0 14px; color: var(--gris-700); font-size: 0.92rem; }
.tarjeta .enlace-tarjeta { font-weight: 600; font-size: 0.9rem; }

/* ---------- Secciones generales ---------- */
section { padding: 48px 0; }
.seccion-alt { background: var(--blanco); }
h2.titulo-seccion {
  font-size: 1.6rem;
  margin: 0 0 8px;
  color: var(--azul-900);
}
.subtitulo-seccion {
  color: var(--gris-700);
  margin: 0 0 32px;
  max-width: 640px;
}

/* ---------- Calculadora: layout ---------- */
.calc-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 860px) {
  .calc-wrap { grid-template-columns: 1fr; }
}

.panel {
  background: var(--blanco);
  border: 1px solid var(--gris-300);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  padding: 26px;
}
.panel h2 { margin-top: 0; font-size: 1.25rem; }

.campo { margin-bottom: 18px; }
.campo label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--gris-900);
}
.campo .ayuda {
  font-size: 0.8rem;
  color: var(--gris-500);
  margin-top: 4px;
}
.campo input[type="number"],
.campo input[type="text"],
.campo input[type="date"],
.campo select {
  width: 100%;
  padding: 11px 12px;
  border: 1.5px solid var(--gris-300);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--fuente);
  background: var(--gris-100);
  color: var(--gris-900);
}
.campo input:focus, .campo select:focus {
  outline: none;
  border-color: var(--azul-600);
  background: var(--blanco);
}

.fila-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 480px) { .fila-2 { grid-template-columns: 1fr; } }

.toggle-grupo {
  display: inline-flex;
  background: var(--gris-100);
  border: 1.5px solid var(--gris-300);
  border-radius: 8px;
  padding: 4px;
  margin-bottom: 20px;
}
.toggle-grupo button {
  border: none;
  background: transparent;
  padding: 9px 18px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gris-700);
  cursor: pointer;
  font-family: var(--fuente);
}
.toggle-grupo button.activo {
  background: var(--azul-800);
  color: var(--blanco);
}

.btn {
  display: inline-block;
  background: var(--verde-600);
  color: var(--blanco);
  border: none;
  padding: 13px 22px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  font-family: var(--fuente);
  transition: opacity 0.15s ease;
}
.btn:hover { opacity: 0.9; text-decoration: none; }

/* ---------- Resultado ---------- */
.resultado {
  background: var(--azul-900);
  color: var(--blanco);
  border-radius: var(--radio);
  padding: 26px;
  box-shadow: var(--sombra);
}
.resultado .principal {
  text-align: center;
  padding: 6px 0 20px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 18px;
}
.resultado .principal .etiqueta {
  font-size: 0.85rem;
  color: #a9bede;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.resultado .principal .cifra {
  font-size: 2.4rem;
  font-weight: 800;
  color: #4fd1a5;
  margin-top: 4px;
}
.desglose-linea {
  display: flex;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.12);
  font-size: 0.93rem;
}
.desglose-linea:last-child { border-bottom: none; }
.desglose-linea .neg { color: #ff9b93; }
.desglose-linea .pos { color: #4fd1a5; }
.resultado .placeholder {
  color: #a9bede;
  font-size: 0.9rem;
  text-align: center;
  padding: 30px 0;
}

/* ---------- Gráfico de reparto ---------- */
.grafico-reparto {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 18px 0 6px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.leyenda-grafico { display: flex; flex-direction: column; gap: 8px; }
.leyenda-item { font-size: 0.88rem; color: #d7e2f2; display: flex; align-items: center; gap: 8px; }
.leyenda-item strong { color: #ffffff; }
.punto-color { width: 11px; height: 11px; border-radius: 50%; display: inline-block; flex-shrink: 0; }

.btn-secundario {
  display: inline-block;
  background: transparent;
  color: var(--blanco);
  border: 1.5px solid rgba(255,255,255,0.35);
  padding: 11px 20px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  font-family: var(--fuente);
  margin-top: 10px;
}
.btn-secundario:hover { background: rgba(255,255,255,0.08); }

/* ---------- Comparador (dos columnas de resultado) ---------- */
.comparador-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 560px) { .comparador-grid { grid-template-columns: 1fr; } }
.comparador-col {
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 16px;
}
.comparador-col.ganador { background: rgba(79,209,165,0.16); border: 1px solid rgba(79,209,165,0.4); }
.comparador-col h4 { margin: 0 0 10px; font-size: 0.95rem; color: #d7e2f2; text-transform: uppercase; letter-spacing: 0.03em; }
.comparador-col .cifra-comp { font-size: 1.7rem; font-weight: 800; color: var(--blanco); }
.comparador-col.ganador .cifra-comp { color: #4fd1a5; }

/* ---------- Comparativa por comunidad (filas con barra) ---------- */
.comparativa-lista { display: flex; flex-direction: column; }
.comparativa-fila {
  display: grid;
  grid-template-columns: 26px 168px 1fr 96px;
  align-items: center;
  gap: 12px;
  padding: 9px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.comparativa-fila:last-child { border-bottom: none; }
.comparativa-fila.mejor { background: rgba(79,209,165,0.14); border-radius: 8px; }
.comparativa-fila.referencia { opacity: 0.7; font-style: italic; }
.comparativa-rank { font-size: 0.78rem; font-weight: 700; color: #8ba0c4; text-align: center; }
.comparativa-fila.mejor .comparativa-rank { color: #4fd1a5; }
.comparativa-nombre { font-weight: 600; color: #d7e2f2; font-size: 0.92rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.comparativa-fila.mejor .comparativa-nombre { color: #ffffff; }
.comparativa-barra-track { background: rgba(255,255,255,0.08); border-radius: 6px; height: 11px; overflow: hidden; }
.comparativa-barra-relleno { height: 100%; border-radius: 6px; background: linear-gradient(90deg,#4fd1a5,#6ee7c0); }
.comparativa-fila.referencia .comparativa-barra-relleno { background: linear-gradient(90deg,#7fa8d9,#a9c3e8); }
.comparativa-valor { text-align: right; font-weight: 700; color: var(--blanco); font-size: 0.9rem; font-variant-numeric: tabular-nums; }
@media (max-width: 560px) {
  .comparativa-fila { grid-template-columns: 20px 96px 1fr 78px; gap: 8px; }
  .comparativa-nombre { font-size: 0.82rem; }
  .comparativa-valor { font-size: 0.82rem; }
}

.explicacion-ganador {
  background: rgba(79,209,165,0.1);
  border: 1px solid rgba(79,209,165,0.35);
  border-radius: 8px;
  padding: 14px 16px;
  color: #d7e2f2;
  font-size: 0.92rem;
  line-height: 1.5;
  margin: 4px 0 18px;
}
.explicacion-ganador strong { color: #4fd1a5; }

.aviso {
  background: #fff8e6;
  border: 1px solid #f0d488;
  color: #6b5300;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.85rem;
  margin-top: 16px;
}

/* ---------- Pasos / cómo funciona ---------- */
.pasos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.paso { text-align: left; }
.paso .num {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--azul-800);
  color: var(--blanco);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  margin-bottom: 10px;
}
.paso h4 { margin: 0 0 6px; font-size: 1rem; }
.paso p { margin: 0; color: var(--gris-700); font-size: 0.9rem; }

/* ---------- Tabla ---------- */
table.tabla-datos {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--blanco);
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra);
}
table.tabla-datos th, table.tabla-datos td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--gris-300);
}
table.tabla-datos th {
  background: var(--azul-900);
  color: var(--blanco);
  font-weight: 600;
}
table.tabla-datos tr:last-child td { border-bottom: none; }
table.tabla-datos tr.resaltada td { background: var(--verde-100); font-weight: 600; }

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid var(--gris-300);
  padding: 16px 0;
}
.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 0.98rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.3rem; color: var(--azul-600); }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { color: var(--gris-700); margin: 10px 0 0; font-size: 0.92rem; }

/* ---------- Anuncios (placeholders) ---------- */
.anuncio {
  background: repeating-linear-gradient(45deg, #eef1f6, #eef1f6 10px, #e4e9f1 10px, #e4e9f1 20px);
  border: 1px dashed var(--gris-500);
  color: var(--gris-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: 8px;
  text-transform: uppercase;
}
.anuncio-banner { width: 100%; height: 90px; margin: 30px 0; }
.anuncio-cuadro { width: 100%; height: 250px; margin: 30px 0; }
.anuncio-lateral { width: 100%; height: 600px; }

.anuncio-popup-overlay {
  position: fixed; inset: 0;
  background: rgba(11,37,69,0.55);
  display: none;
  align-items: center; justify-content: center;
  z-index: 200;
}
.anuncio-popup-overlay.visible { display: flex; }
.anuncio-popup {
  background: var(--blanco);
  border-radius: var(--radio);
  width: min(420px, 90vw);
  padding: 20px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}
.anuncio-popup .cerrar-popup {
  position: absolute; top: 10px; right: 12px;
  background: none; border: none; font-size: 1.3rem;
  cursor: pointer; color: var(--gris-500);
}
.anuncio-popup .anuncio { height: 280px; margin: 10px 0 0; }

.anuncio-notificacion {
  position: fixed;
  bottom: 16px; right: 16px;
  width: 260px;
  z-index: 150;
  box-shadow: 0 10px 26px rgba(0,0,0,0.18);
}
.anuncio-notificacion .cerrar-notif {
  position: absolute; top: 4px; right: 6px;
  background: none; border: none; cursor: pointer; color: var(--gris-500);
  font-size: 1rem;
}

/* ---------- Ideas de uso / cards secundarias ---------- */
.grid-ideas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.idea-card {
  background: var(--gris-100);
  border-radius: 8px;
  padding: 18px;
  border: 1px solid var(--gris-300);
}
.idea-card h4 { margin: 0 0 6px; font-size: 0.98rem; color: var(--azul-900); }
.idea-card p { margin: 0; font-size: 0.87rem; color: var(--gris-700); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--azul-900);
  color: #b9c8e0;
  padding: 40px 0 24px;
  margin-top: 40px;
  font-size: 0.88rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 24px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h5 {
  color: var(--blanco);
  margin: 0 0 10px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 7px; }
.footer-grid a { color: #b9c8e0; }
.footer-legal {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
  color: #8ba0c4;
}

/* ---------- Artículos de blog ---------- */
.articulo {
  background: var(--blanco);
  max-width: 760px;
  margin: 0 auto;
  padding: 8px 0 40px;
}
.articulo h1 { color: var(--azul-900); font-size: 2rem; margin-bottom: 6px; }
.articulo .meta { color: var(--gris-500); font-size: 0.85rem; margin-bottom: 26px; }
.articulo h2 { color: var(--azul-900); font-size: 1.35rem; margin-top: 34px; }
.articulo p { font-size: 1.02rem; color: var(--gris-900); }
.articulo ul, .articulo ol { font-size: 1.02rem; color: var(--gris-900); }

@media (max-width: 860px) {
  .nav-toggle { display: inline-block; }
  .nav-principal {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--azul-900);
    flex-direction: column;
    padding: 10px 20px 16px;
  }
  .nav-principal.abierto { display: flex; }
}