/* =========================================================
   Calculadora de Ads · estilos específicos
   Se carga DESPUÉS de /styles.css y reutiliza sus variables
   (--color-primario, --color-acento, --color-neon-purple, fuentes…)
   ========================================================= */

:root {
  /* Tendencias: color de marca + variante de texto con contraste AA */
  --c-up: #28a745;
  --c-up-text: #1b7a32;
  --c-up-bg: rgba(40, 167, 69, 0.12);
  --c-down: #dc3545;
  --c-down-text: #b02a37;
  --c-down-bg: rgba(220, 53, 69, 0.12);
  --c-neutral-text: #64748b;
  --c-neutral-bg: #e2e8f0;
  --color-borde: #e2e8f0;
  --color-morado-claro: #a78bfa;
  --color-verde-kpi: #6ee7b7;
}

/* ---------- Utilidades ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  padding: 8px 16px;
  background: var(--color-primario);
  color: #fff;
  border-radius: 6px;
  z-index: 2000;
}
.skip-link:focus { top: 12px; }

:focus-visible {
  outline: 2px solid var(--color-acento);
  outline-offset: 2px;
}

/* ---------- Layout: más ancho que la home para el dashboard ---------- */
main { max-width: 1100px; }

/* ---------- Cabecera (misma base que la home + toques de color) ---------- */
.cabecera {
  position: relative;
  z-index: 5;
  background:
    radial-gradient(circle at 85% -30%, rgba(139, 92, 246, 0.38), transparent 55%),
    radial-gradient(circle at 8% 130%, rgba(37, 99, 235, 0.35), transparent 50%),
    var(--color-primario);
  padding: 32px 20px 26px;
}

.cabecera__logo { display: inline-block; border-radius: 50%; }
.cabecera .foto-perfil {
  width: 96px;
  height: 96px;
  margin-bottom: 14px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.cabecera__logo:hover .foto-perfil,
.cabecera__logo:focus-visible .foto-perfil {
  transform: scale(1.05);
  border-color: var(--color-neon-purple);
}

.badges {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 14px;
}
.badges li { margin: 0; }
.badge {
  padding: 3px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #c4b5fd;
  background: rgba(139, 92, 246, 0.16);
  border: 1px solid rgba(139, 92, 246, 0.4);
  border-radius: 999px;
}

.cabecera h1 {
  font-size: clamp(1.75rem, 1.2rem + 2.2vw, 2.7rem);
  line-height: 1.15;
  margin-bottom: 10px;
}
.cabecera__lead {
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.55;
}

/* KPIs de cabecera (mismo aspecto que los de la home) */
.kpi-contenedor {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 22px 0 20px;
}
.kpi-tarjeta {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 22px;
  border-radius: 10px;
  min-width: 170px;
  text-align: center;
  box-shadow: 0 10px 30px -14px rgba(139, 92, 246, 0.6);
}
.kpi-numero {
  display: block;
  font-family: var(--fuente-titulos);
  font-size: clamp(1.5rem, 1.2rem + 1vw, 1.9rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-morado-claro);
  font-variant-numeric: tabular-nums;
}
.kpi-numero--verde { color: var(--color-verde-kpi); }
.kpi-etiqueta {
  font-size: 12px;
  font-weight: 500;
  color: #94a3b8;
}

/* Menú: página actual resaltada */
nav a[aria-current="page"] {
  background-color: var(--color-acento);
  box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.5);
}
nav a:focus-visible { outline-color: #c4b5fd; }
/* El menú «Proyectos» queda marcado cuando estamos dentro de la calculadora */
.menu-desplegable:has(a[aria-current="page"]) > a {
  background-color: var(--color-acento);
  border-radius: 6px;
  box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.5);
}

/* ---------- Migas de pan ---------- */
.migas ol {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-texto-suave);
}
.migas li { margin: 0; }
.migas li + li::before { content: "/"; margin-right: 8px; color: #cbd5e1; }
.migas a { color: inherit; text-decoration: none; }
.migas a:hover { color: var(--color-acento); text-decoration: underline; }

/* ---------- Panel de datos ---------- */
.panel__cabecera {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 2px solid var(--color-borde);
  padding-bottom: 8px;
  margin-bottom: 20px;
}
.panel__cabecera h2 {
  border: 0;
  margin: 0;
  padding: 0;
}

.btn-secundario {
  padding: 8px 14px;
  font: 600 0.88rem var(--fuente-cuerpo);
  color: var(--color-primario);
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}
.btn-secundario:hover {
  border-color: var(--color-neon-purple);
  color: var(--color-neon-purple);
  background: #f5f3ff;
}

.periodos { display: grid; gap: 20px; }

.periodo {
  margin: 0;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--color-borde);
  border-radius: 8px;
  background: #fafafa;
}
.periodo--actual { border-left: 4px solid var(--color-acento); }
.periodo--anterior { background: #fff; border-style: dashed; border-left: 4px solid #cbd5e1; }

.periodo legend {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  font-family: var(--fuente-titulos);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primario);
}
.punto { width: 10px; height: 10px; border-radius: 50%; }
.punto--actual { background: var(--color-acento); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2); }
.punto--anterior { background: #cbd5e1; }

.campos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}
.unidad { font-weight: 400; color: var(--color-texto-suave); }

.periodo input[type="number"] {
  min-height: 44px;
  background: #fff;
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
  appearance: textfield;
}
.periodo input[type="number"]::-webkit-outer-spin-button,
.periodo input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.periodo input[type="number"]:hover { border-color: #94a3b8; }
.periodo input[type="number"]:focus {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.periodo input[aria-invalid="true"] { border-color: var(--c-down); }

/* ---------- Resultados ---------- */
.grupo + .grupo { margin-top: 28px; }
.grupo__titulo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 1.1rem;
  color: var(--color-primario);
}
.grupo__titulo::before {
  content: "";
  width: 4px;
  height: 1.1em;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-acento), var(--color-neon-purple));
}

.tarjetas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 15px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 140px; /* reserva altura → CLS 0 al actualizar */
  padding: 20px;
  background: #fafafa;
  border: 1px solid var(--color-borde);
  border-left: 4px solid var(--color-acento);
  border-radius: 8px;
}

.card__label {
  font-family: var(--fuente-cuerpo);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-texto-suave);
}
.card__value {
  font-family: var(--fuente-titulos);
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-primario);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.card__trend {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  min-height: 26px;
  font-size: 0.8rem;
  color: var(--color-texto-suave);
}

/* Tarjetas destacadas (ROAS, ROI, Beneficio): estilo KPI oscuro de la home */
.card--destacada {
  background:
    radial-gradient(circle at 100% 0, rgba(139, 92, 246, 0.3), transparent 60%),
    var(--color-primario);
  border-color: rgba(139, 92, 246, 0.4);
  border-left-color: var(--color-neon-purple);
}
.card--destacada .card__label { color: #94a3b8; }
.card--destacada .card__value { color: var(--color-morado-claro); }
.card--verde .card__value { color: var(--color-verde-kpi); }
.card--destacada .card__trend { color: #94a3b8; }

/* Indicadores de variación */
.trend {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px 8px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  border-radius: 999px;
}
.trend svg { width: 14px; height: 14px; flex: none; }
.trend--up { color: var(--c-up-text); background: var(--c-up-bg); }
.trend--up svg { color: var(--c-up); }
.trend--down { color: var(--c-down-text); background: var(--c-down-bg); }
.trend--down svg { color: var(--c-down); }
.trend--neutral { color: var(--c-neutral-text); background: var(--c-neutral-bg); }

.card--destacada .trend--up { color: #6ee7b7; background: rgba(110, 231, 183, 0.14); }
.card--destacada .trend--up svg { color: #6ee7b7; }
.card--destacada .trend--down { color: #fca5a5; background: rgba(252, 165, 165, 0.14); }
.card--destacada .trend--down svg { color: #fca5a5; }
.card--destacada .trend--neutral { color: #cbd5e1; background: rgba(148, 163, 184, 0.18); }

.nota {
  margin-top: 24px;
  padding: 12px 16px;
  font-size: 0.88rem;
  color: var(--color-texto);
  background: #f5f3ff;
  border-left: 4px solid var(--color-neon-purple);
  border-radius: 0 8px 8px 0;
}

/* ---------- Fórmulas y FAQ ---------- */
#formulas > p { color: var(--color-texto); }

.tabla-wrap {
  margin-top: 16px;
  overflow-x: auto;
  border: 1px solid var(--color-borde);
  border-radius: 8px;
}
.tabla { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.tabla th,
.tabla td {
  padding: 11px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-borde);
}
.tabla thead th {
  background: var(--color-primario);
  color: #fff;
  font-family: var(--fuente-titulos);
  font-weight: 700;
}
.tabla tbody th { color: var(--color-primario); white-space: nowrap; }
.tabla tbody tr:nth-child(even) { background: #f8fafc; }
.tabla tbody tr:last-child > * { border-bottom: 0; }

.faq { display: grid; gap: 10px; }
.faq__item {
  border: 1px solid var(--color-borde);
  border-left: 4px solid var(--color-acento);
  border-radius: 8px;
  background: #fafafa;
  transition: border-color 0.2s ease;
}
.faq__item[open] { border-left-color: var(--color-neon-purple); }
.faq__item summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-family: var(--fuente-titulos);
  font-weight: 600;
  color: var(--color-primario);
  cursor: pointer;
  list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  font-size: 1.3rem;
  line-height: 1;
  color: var(--color-acento);
  transition: transform 0.2s ease;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { padding: 0 16px 16px; color: var(--color-texto); }

/* ---------- Responsive ---------- */
@media (min-width: 900px) {
  .periodos { grid-template-columns: 1fr 1fr; align-items: start; }
  .campos { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .cabecera { padding: 24px 14px 20px; }
  .kpi-tarjeta { min-width: 0; flex: 1 1 140px; padding: 10px 14px; }
  section { padding: 22px 18px; }
  .periodo { padding: 14px; }
}

@media (min-width: 2560px) {
  html { font-size: 112.5%; }
  main { max-width: 1400px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Informe PDF ---------- */
.btn-informe {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0 0 22px;
  padding: 12px 22px;
  font: 600 1rem var(--fuente-cuerpo);
  color: #fff;
  background: linear-gradient(135deg, var(--color-acento), var(--color-neon-purple));
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 10px 24px -10px rgba(139, 92, 246, 0.8);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.btn-informe:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
  box-shadow: 0 14px 28px -10px rgba(139, 92, 246, 0.9);
}
.btn-informe:focus-visible { outline: 2px solid #c4b5fd; outline-offset: 3px; }
.btn-informe:active { transform: translateY(0); }
.btn-informe--compacto {
  margin: 0;
  padding: 9px 16px;
  font-size: 0.9rem;
  box-shadow: none;
}

.campo-campana { grid-column: 1 / -1; }
.informe__estado {
  min-height: 1.4em;
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-up-text);
}

/* Valores negativos (pérdidas) en rojo sobre fondo oscuro */
.kpi-numero.es-negativo,
.card--destacada .card__value.es-negativo { color: #fca5a5; }