/* =============================================================
   MargenReal — hoja de estilos única
   1. Tokens · 2. Reset · 3. Utilidades · 4. Tipografía
   5. Componentes · 6. Secciones · 7. Efectos · 8. Responsive
   9. Reduced motion
   ============================================================= */

/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #f4f7f6;
  --panel: #ffffff;
  --panel-2: #f8faf9;
  --tinta: #0d1512;
  --tinta-2: #4b5a54;
  --tinta-3: #7a8a84;
  --linea: #e0e7e4;
  --verde: #0a9b6e;
  --verde-osc: #067a56;
  --verde-suave: #e7f5ef;
  --rojo: #d92d20;
  --rojo-suave: #fdecea;
  --ambar: #b54708;
  --ambar-suave: #fff4e5;
  --azul-suave: #eef4fb;
  --azul: #175cd3;

  --c-producto: #94a3b8;
  --c-comision: #f59e0b;
  --c-impuestos: #ef4444;
  --c-envio: #8b5cf6;
  --c-ganancia: #0a9b6e;

  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radio: 14px;
  --radio-sm: 10px;
  --sombra: 0 1px 2px rgba(13, 21, 18, .04), 0 8px 24px rgba(13, 21, 18, .06);
  --gutter: clamp(1rem, 4vw, 2rem);
  --ancho: 1180px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--tinta);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; line-height: 1.15; letter-spacing: -0.02em; }
input, select { font: inherit; color: inherit; }
::selection { background: var(--verde); color: #fff; }
:focus-visible { outline: 2px solid var(--verde); outline-offset: 2px; border-radius: 4px; }

/* =============================================================
   3. Utilidades
   ============================================================= */
.contenedor { width: min(100% - var(--gutter) * 2, var(--ancho)); margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 999;
  padding: .6rem 1rem; background: var(--tinta); color: #fff; border-radius: 8px;
}
.skip-link:focus { top: 1rem; }

/* =============================================================
   4. Tipografía
   ============================================================= */
h1 { font-size: clamp(1.5rem, 4.6vw, 2.6rem); font-weight: 700; }
h2 { font-size: clamp(1.3rem, 3.4vw, 1.8rem); font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 600; }
.etiqueta {
  display: block; font-size: .72rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--tinta-2);
}

/* =============================================================
   5. Componentes
   ============================================================= */

/* --- Cabecera --- */
.cabecera { background: var(--tinta); color: #fff; }
.cabecera-fila {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 56px;
}
.marca { display: flex; align-items: center; gap: .5rem; font-weight: 600; letter-spacing: -.02em; }
.marca b { color: var(--verde); font-weight: 700; }
.marca-icono { display: grid; place-items: center; color: var(--verde); }
.cabecera-nota { font-size: .78rem; color: #b9c7c1; }
a.cabecera-nota:hover { color: #fff; }
.cabecera-nota b { color: #fff; font-weight: 600; }

/* --- Hero --- */
.hero { padding: clamp(1rem, 3.4vw, 2.4rem) 0 .9rem; }
.hero-bajada { margin-top: .5rem; color: var(--tinta-2); max-width: 62ch; font-size: .95rem; }
@media (min-width: 720px) { .hero-bajada { font-size: 1.02rem; } }

/* --- Tarjeta de la herramienta --- */
.tool-card {
  background: var(--panel); border: 1px solid var(--linea);
  border-radius: var(--radio); box-shadow: var(--sombra); overflow: hidden;
}
.modos { display: flex; gap: .25rem; padding: .5rem .5rem 0; background: var(--panel-2); border-bottom: 1px solid var(--linea); }
.modo {
  flex: 1; padding: .7rem .5rem; font-size: .92rem; font-weight: 600; color: var(--tinta-2);
  border-radius: var(--radio-sm) var(--radio-sm) 0 0; transition: background .2s var(--ease-out), color .2s var(--ease-out);
}
.modo.es-activo { background: var(--panel); color: var(--tinta); box-shadow: 0 -1px 0 var(--verde) inset; }
.modo:hover { color: var(--tinta); }

.aviso-js { margin: 1rem; padding: .9rem 1rem; background: var(--ambar-suave); color: var(--ambar); border-radius: var(--radio-sm); font-size: .92rem; }

/* --- Resultado principal --- */
.resultado {
  display: grid; gap: 1rem; padding: 1.1rem var(--gutter);
  background: var(--tinta); color: #fff;
}
.resultado .etiqueta { color: #9fb2ab; }
.resultado-principal .cifra {
  display: block; font-family: var(--mono); font-size: clamp(2rem, 8vw, 2.9rem);
  font-weight: 700; letter-spacing: -.03em; color: #fff; line-height: 1.1; margin-top: .15rem;
}
.resultado-principal .cifra.es-perdida { color: #ff8a80; }
.resultado-secundarios { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; }
.resultado-secundarios b { font-family: var(--mono); font-size: 1rem; font-weight: 700; color: #eafff6; }

/* --- Formulario --- */
form { padding: 0 0 1.25rem; }
.grilla-campos { display: grid; gap: .9rem; padding: 1rem var(--gutter) 0; }
.panel { padding-top: .25rem; }
.campo { display: flex; flex-direction: column; gap: .35rem; min-width: 0; }
.campo label, .label-est { font-size: .85rem; font-weight: 600; color: var(--tinta-2); }
.campo--destacado { padding: 1rem var(--gutter) 0; }
.campo--check { flex-direction: row; align-items: flex-start; gap: .55rem; padding-top: .4rem; }
.campo--check label { font-weight: 500; color: var(--tinta); line-height: 1.35; }
.campo--check input { width: 1.15rem; height: 1.15rem; accent-color: var(--verde); flex: 0 0 auto; margin-top: .1rem; }

.input-money { display: flex; align-items: center; gap: .35rem; background: var(--panel-2); border: 1px solid var(--linea); border-radius: var(--radio-sm); padding: 0 .7rem; transition: border-color .18s var(--ease-out), box-shadow .18s var(--ease-out); }
.input-money:focus-within { border-color: var(--verde); box-shadow: 0 0 0 3px var(--verde-suave); }
.input-money span { font-family: var(--mono); font-size: .95rem; color: var(--tinta-2); font-weight: 500; }
.input-money input { width: 100%; border: 0; background: none; padding: .65rem 0; font-family: var(--mono); font-size: 1rem; font-weight: 500; min-width: 0; }
.input-money input:focus { outline: none; }
.input-money--pct input { text-align: right; }

select {
  appearance: none; width: 100%; padding: .65rem 2rem .65rem .7rem;
  background: var(--panel-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%234b5a54' d='M1 1l5 5 5-5'/%3E%3C/svg%3E") no-repeat right .7rem center;
  border: 1px solid var(--linea); border-radius: var(--radio-sm); font-size: .95rem; cursor: pointer;
}
select:focus { outline: none; border-color: var(--verde); box-shadow: 0 0 0 3px var(--verde-suave); }
.ayuda { font-size: .78rem; color: var(--tinta-2); line-height: 1.4; }

.bloque { border: 0; border-top: 1px solid var(--linea); margin-top: 1.25rem; padding: 0 0 .4rem; }
.bloque legend {
  padding: 1rem var(--gutter) 0; font-size: .78rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; color: var(--verde-osc);
}
.bloque--equilibrio { background: var(--verde-suave); border-top-color: #cfe9de; padding-bottom: 1rem; }
.dato-fuerte { font-family: var(--mono); font-size: 1.15rem; font-weight: 700; color: var(--tinta); }

/* --- Dashboard: dona + leyenda --- */
.dashboard {
  display: grid; gap: 1.1rem; align-items: center;
  margin: 1.4rem var(--gutter) 0; padding: 1.1rem;
  background: var(--panel-2); border: 1px solid var(--linea); border-radius: var(--radio);
}
.dona-caja { position: relative; width: 168px; margin-inline: auto; }
.dona { width: 168px; height: 168px; transform: rotate(-90deg); }
.dona-seg { transition: stroke-dasharray .45s var(--ease-out), stroke-dashoffset .45s var(--ease-out); }
.dona-centro {
  position: absolute; inset: 0; display: grid; place-content: center;
  font-family: var(--mono); font-size: 1.35rem; font-weight: 700; color: var(--verde-osc);
}
.dona-centro.es-perdida { color: var(--rojo); font-size: 1.1rem; }
.leyenda { list-style: none; padding: 0; display: grid; gap: .5rem; }
.leyenda li { display: flex; align-items: center; gap: .55rem; font-size: .88rem; }
.punto { width: 10px; height: 10px; border-radius: 3px; flex: 0 0 auto; }
.leyenda-txt { color: var(--tinta-2); }
.leyenda-val { margin-left: auto; font-family: var(--mono); font-weight: 700; }

/* --- Desglose --- */
.desglose { width: calc(100% - var(--gutter) * 2); margin: 1.2rem var(--gutter) 0; border-collapse: collapse; font-size: .92rem; }
.desglose caption { text-align: left; font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--verde-osc); padding-bottom: .5rem; }
.desglose th, .desglose td { padding: .6rem .2rem; border-bottom: 1px solid var(--linea); vertical-align: top; }
.desglose th { text-align: left; font-weight: 500; color: var(--tinta-2); }
.desglose td { text-align: right; font-family: var(--mono); font-weight: 500; white-space: nowrap; }
.fila-nota { display: block; font-size: .74rem; color: var(--tinta-3); font-weight: 400; }
.desglose .es-total th, .desglose .es-total td { font-weight: 700; color: var(--tinta); }
.desglose .es-alerta th { color: var(--ambar); }
.desglose .es-resultado th, .desglose .es-resultado td {
  border-top: 2px solid var(--tinta); border-bottom: 0; padding-top: .8rem;
  font-size: 1.05rem; font-weight: 700; color: var(--verde-osc);
}
.desglose .es-resultado th { color: var(--tinta); }
.desglose .es-resultado.es-perdida td { color: var(--rojo); }

/* --- Alertas --- */
.alertas { display: grid; gap: .6rem; margin: 1rem var(--gutter) 0; }
.alerta { display: flex; gap: .7rem; padding: .8rem .9rem; border-radius: var(--radio-sm); font-size: .88rem; border: 1px solid transparent; }
.alerta p { margin-top: .15rem; color: inherit; opacity: .92; }
.alerta-icono {
  flex: 0 0 auto; width: 1.4rem; height: 1.4rem; border-radius: 50%;
  display: grid; place-items: center; font-size: .72rem; font-weight: 700; color: #fff;
}
.alerta--critica { background: var(--rojo-suave); border-color: #f7cfcb; color: #7a1c14; }
.alerta--critica .alerta-icono { background: var(--rojo); }
.alerta--aviso { background: var(--ambar-suave); border-color: #f6ddb8; color: #7a3a06; }
.alerta--aviso .alerta-icono { background: var(--ambar); }
.alerta--info { background: var(--azul-suave); border-color: #d3e2f7; color: #123f8f; }
.alerta--info .alerta-icono { background: var(--azul); }

/* --- Acciones --- */
.acciones { display: grid; gap: .7rem; margin: 1.3rem var(--gutter) 0; }
.btn {
  display: inline-block; text-align: center; padding: .8rem 1.4rem;
  border-radius: var(--radio-sm); font-weight: 600; font-size: .95rem;
  transition: transform .18s var(--ease-out), background .18s var(--ease-out);
}
.btn--primario { background: var(--verde); color: #fff; }
.btn--primario:hover { background: var(--verde-osc); transform: translateY(-1px); }
.btn--fantasma { background: transparent; color: var(--tinta-2); border: 1px solid var(--linea); }
.btn--pro { background: var(--tinta); color: #fff; margin-top: 1rem; }
.privacidad-badge { font-size: .8rem; color: var(--tinta-2); }
.descargo { margin: .9rem 0 0; font-size: .78rem; color: var(--tinta-2); }

/* --- Espacios publicitarios (vacíos por defecto) --- */
.ad-slot {
  display: grid; place-items: center; border: 1px dashed #cfd8d4; border-radius: var(--radio-sm);
  color: #a8b4af; font-size: .7rem; letter-spacing: .16em; text-transform: uppercase;
  background: repeating-linear-gradient(45deg, #fafcfb, #fafcfb 10px, #f4f7f6 10px, #f4f7f6 20px);
}
.ad-slot--leaderboard { min-height: 90px; margin: 1.6rem 0; }
.ad-slot--nativo { min-height: 100px; margin: 1.2rem var(--gutter) 0; }
.ad-slot--modal { min-height: 90px; margin: 1rem 0; }

/* Hueco con un anuncio real dentro: fuera la decoracion de marcador y
   ancho completo, porque el grid centrado dejaba el anuncio sin ancho. */
.ad-slot--activo {
  display: block; border: 0; background: none; text-align: center;
}
.ad-slot--activo > span { display: block; margin-bottom: .4rem; }
.ad-slot--activo .adsbygoogle { display: block; width: 100%; }

/* --- Modal --- */
.modal {
  width: min(92vw, 460px); border: 0; border-radius: var(--radio); padding: 1.5rem;
  box-shadow: 0 24px 60px rgba(13, 21, 18, .28); position: relative; color: var(--tinta);
}
.modal::backdrop { background: rgba(13, 21, 18, .55); }
.modal h2 { font-size: 1.25rem; padding-right: 1.5rem; }
.modal p { margin-top: .6rem; color: var(--tinta-2); font-size: .95rem; }
.modal-cerrar { position: absolute; top: .6rem; right: .8rem; font-size: 1.6rem; line-height: 1; color: var(--tinta-2); }
.modal-acciones { display: grid; gap: .5rem; margin-top: 1rem; }

/* =============================================================
   6. Secciones de contenido
   ============================================================= */
.seccion { padding: clamp(1.8rem, 5vw, 3rem) 0; }
.seccion h2 { margin-bottom: 1.2rem; }
.pasos { list-style: none; padding: 0; display: grid; gap: 1rem; counter-reset: paso; }
.pasos li { background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio); padding: 1.2rem; }
.paso-num {
  display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--verde-suave); color: var(--verde-osc); font-weight: 700; font-family: var(--mono); margin-bottom: .7rem;
}
.pasos p { margin-top: .35rem; color: var(--tinta-2); font-size: .93rem; }

.casos { display: grid; gap: 1rem; }
.caso { background: var(--panel); border: 1px solid var(--linea); border-left: 3px solid var(--ambar); border-radius: var(--radio); padding: 1.2rem; }
.caso p { margin-top: .45rem; color: var(--tinta-2); font-size: .93rem; }

.texto-seo { display: grid; gap: .9rem; max-width: 72ch; color: var(--tinta-2); }
.texto-seo b { color: var(--tinta); }

.faq { display: grid; gap: .55rem; }
.faq details { background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio-sm); padding: .9rem 1.1rem; }
.faq summary { font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--verde); font-weight: 700; }
.faq details[open] summary::after { content: "−"; }
.faq p { margin-top: .6rem; color: var(--tinta-2); font-size: .93rem; }

.seccion--pro { background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio); padding: clamp(1.4rem, 4vw, 2.2rem); margin-bottom: 2rem; }
.pro-bajada { color: var(--tinta-2); margin-top: -.6rem; }
.pro-lista { margin-top: 1rem; padding-left: 1.1rem; display: grid; gap: .4rem; color: var(--tinta-2); font-size: .93rem; }

/* --- Pie --- */
.pie { background: var(--tinta); color: #b9c7c1; padding: 1.4rem 0; font-size: .85rem; }
.pie-fila { display: flex; flex-wrap: wrap; gap: .6rem 1.2rem; justify-content: space-between; align-items: center; }
.pie nav { display: flex; gap: 1.1rem; }
.pie a:hover { color: #fff; }

/* --- Páginas legales --- */
.legal { padding: 2rem 0 3rem; max-width: 72ch; }
.legal h2 { margin-top: 1.6rem; font-size: 1.15rem; }
.legal p, .legal li { color: var(--tinta-2); margin-top: .6rem; }
.legal ul { padding-left: 1.1rem; }
.legal .todo { background: var(--ambar-suave); color: var(--ambar); padding: .2rem .4rem; border-radius: 4px; font-size: .85em; }

/* --- Página de planes --- */
.legal .planes-estado {
  display: inline-block; margin-top: .8rem; padding: .28rem .75rem;
  background: var(--ambar-suave); color: var(--ambar);
  border-radius: 999px; font-size: .82rem; font-weight: 600;
}
.planes-grid { display: grid; gap: .9rem; margin-top: 1rem; }
.planes-card { background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio); padding: 1.1rem 1.2rem; }
.planes-card h3 { color: var(--tinta); }
.legal .planes-card p { margin-top: .4rem; font-size: .93rem; }
.planes-cierre { display: grid; gap: .6rem; margin-top: 2.2rem; }

/* =============================================================
   8. Responsive (mobile-first)
   ============================================================= */
@media (min-width: 540px) {
  .grilla-campos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .resultado { grid-template-columns: 1.1fr 1fr; align-items: center; }
  .acciones { grid-template-columns: auto 1fr; align-items: center; gap: 1rem; }
}

@media (min-width: 720px) {
  .dashboard { grid-template-columns: 168px 1fr; gap: 1.6rem; }
  .dona-caja { margin-inline: 0; }
  .pasos { grid-template-columns: repeat(3, 1fr); }
  .casos { grid-template-columns: repeat(3, 1fr); }
  .modal-acciones { grid-template-columns: repeat(2, 1fr); }
  .planes-grid { grid-template-columns: repeat(2, 1fr); }
  .planes-cierre { grid-template-columns: auto auto; justify-content: start; }
}

@media (min-width: 960px) {
  .grilla-campos { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .resultado { grid-template-columns: 1fr 1.4fr; padding-block: 1.3rem; }
  .resultado-secundarios { grid-template-columns: repeat(3, 1fr); }
}

/* =============================================================
   9. Reduced motion — sólo efectos intrusivos
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .dona-seg { transition: none; }
}