:root {
  --fondo: #F4F5EC;
  --tarjeta: #FFFFFF;
  --tinta: #13261C;
  --tinta-2: #2E4437;
  --tenue: #55685B;
  --linea: #DCDFCC;
  --tachado: #8A5A2B;
  --felpa: #D8F03C;
  --display: 'Unbounded', system-ui, sans-serif;
  --texto: 'Instrument Sans', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--fondo);
  color: var(--tinta);
  font-family: var(--texto);
  font-size: 17px;
  line-height: 1.5;
}
img { display: block; max-width: 100%; height: auto; }
p { margin: 0; }
a { color: var(--tinta); }
main { overflow-x: clip; }
:focus-visible { outline: 3px solid var(--tinta); outline-offset: 3px; }

.saltar { position: absolute; left: -9999px; }
.saltar:focus { left: 16px; top: 16px; background: var(--tarjeta); padding: 8px 12px; z-index: 10; }

.contenedor { max-width: 1200px; margin: 0 auto; padding-inline: 24px; }
.centrado { text-align: center; }
.seccion { padding-top: 112px; }
.seccion--angosta { max-width: 1100px; }

/* Tipografía */
.titulo { font-family: var(--display); font-weight: 700; letter-spacing: -0.04em; margin: 0; }
.titulo--portada { font-size: clamp(40px, 5.6vw, 76px); line-height: 1.04; }
.titulo--seccion { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.12; }
.titulo--funcion { font-size: clamp(24px, 2.6vw, 30px); line-height: 1.15; margin-top: 14px; }
.titulo--cierre { font-size: clamp(30px, 4.2vw, 54px); line-height: 1.06; }
.bajada { font-size: 20px; line-height: 1.55; color: var(--tinta-2); max-width: 38ch; margin-top: 24px; }
.bajada--angosta { max-width: 52ch; margin: 14px auto 40px; font-size: 18px; }

/* Botones */
.boton {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 26px; border-radius: 999px;
  font: 600 17px/1 var(--texto); text-decoration: none; border: 0; cursor: pointer;
}
.boton--chico { min-height: 44px; padding: 0 18px; font-size: 15px; }
.boton--oscuro { background: var(--tinta); color: var(--fondo); }
.boton--oscuro:hover { background: #24402F; color: var(--fondo); }
.boton--borde { border: 1.5px solid var(--tinta); }
.boton--felpa { background: var(--felpa); color: var(--tinta); font-weight: 700; box-shadow: 0 0 24px rgba(216, 240, 60, 0.45); }
.boton--felpa:hover { filter: brightness(1.05); }

/* Barra */
.barra { border-bottom: 1px solid var(--linea); background: var(--fondo); position: sticky; top: 0; z-index: 5; }
.barra__fila { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; padding-block: 12px; }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.logo span { font-family: var(--display); font-weight: 700; font-size: 26px; letter-spacing: -0.04em; line-height: 1; }
.barra__menu { display: flex; flex-wrap: wrap; gap: 22px; margin-left: auto; font-size: 15px; font-weight: 500; }
.barra__menu a { text-decoration: none; padding-block: 10px; }
.barra__menu a:hover { text-decoration: underline; }

/* Portada */
.portada { display: flex; flex-wrap: wrap; align-items: center; gap: 48px; padding-top: 72px; padding-bottom: 64px; }
.portada__texto { flex: 1 1 500px; min-width: 0; }
.etiqueta {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 20px;
  background: var(--tarjeta); border: 1px solid var(--linea); padding: 7px 14px; border-radius: 999px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
}
.punto { width: 9px; height: 9px; border-radius: 50%; background: var(--felpa); box-shadow: 0 0 10px var(--felpa); }
.acciones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.portada__celus { flex: 1 1 420px; min-width: 0; display: flex; justify-content: center; align-items: flex-end; gap: 16px; }

/* Celulares con captura */
.celu {
  margin: 0; width: 200px; flex-shrink: 0; padding: 8px; border-radius: 32px; background: var(--tinta);
  box-shadow: 0 24px 48px -24px rgba(19, 38, 28, 0.45);
}
.celu img { border-radius: 25px; width: 100%; }
.celu--izq { transform: rotate(-5deg) translateY(24px); }
.celu--der { transform: rotate(5deg) translateY(24px); }
.celu--centro { position: relative; z-index: 1; }
.celu--grande { width: min(300px, 80vw); }
.portada__celus .celu { width: 31%; max-width: 200px; }

/* Franja */
.franja { background: var(--tinta); color: var(--fondo); }
.franja__grilla { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; padding-block: 28px; }
.franja__grilla p:last-child { font-size: 14px; opacity: 0.85; margin-top: 4px; }
.franja__dato { font-family: var(--display); font-weight: 700; font-size: 32px; letter-spacing: -0.04em; color: var(--felpa); }

/* Para quién */
.selector { display: flex; justify-content: center; gap: 6px; margin: 28px auto 0; width: fit-content; max-width: 100%; background: #E6E9D8; padding: 6px; border-radius: 999px; }
.selector button {
  min-height: 48px; padding: 0 22px; border: 0; border-radius: 999px; background: transparent;
  font: 700 16px var(--texto); color: var(--tinta-2); cursor: pointer;
}
.selector button[aria-selected="true"] { background: var(--tinta); color: var(--fondo); }
.problemas { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 16px; margin-top: 32px; }
.problemas[hidden] { display: none; }
.problema { background: var(--tarjeta); border: 1px solid var(--linea); border-radius: 22px; padding: 26px; }
.problema__antes { font-size: 17px; color: var(--tachado); text-decoration: line-through; }
.problema__ahora { display: flex; gap: 12px; margin-top: 12px; font-size: 19px; font-weight: 600; line-height: 1.4; }
.problema__ahora::before {
  content: ""; flex-shrink: 0; width: 10px; height: 10px; margin-top: 9px; border-radius: 50%;
  background: var(--felpa); box-shadow: 0 0 8px var(--felpa);
}

/* Funciones */
.funciones { display: flex; flex-direction: column; gap: 88px; }
.funcion { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-around; gap: 48px; }
.funcion--invertida { flex-direction: row-reverse; }
.funcion__texto { flex: 0 1 460px; min-width: 0; }
.funcion__texto > p:last-child { margin-top: 16px; font-size: 18px; line-height: 1.6; color: var(--tinta-2); max-width: 44ch; }
.pastilla { display: inline-block; background: var(--felpa); border-radius: 999px; padding: 4px 12px; font-size: 13px; font-weight: 700; }

/* Chips */
.chips { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.chips li { background: var(--tarjeta); border: 1px solid var(--linea); border-radius: 999px; padding: 12px 18px; font-size: 15px; font-weight: 600; }

/* Precios */
.planes { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.plan { display: flex; flex-direction: column; gap: 10px; background: var(--tarjeta); border: 1px solid var(--linea); border-radius: 24px; padding: 32px; }
.plan--destacado { background: var(--tinta); color: var(--fondo); border-color: var(--tinta); }
.plan__nombre { font-size: 14px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.8; }
.plan__precio { font-family: var(--display); font-weight: 700; font-size: 46px; letter-spacing: -0.04em; line-height: 1; }
.plan__detalle { font-size: 15px; opacity: 0.85; }
.plan ul { list-style: none; padding: 16px 0 8px; margin: 6px 0 0; border-top: 1px solid currentColor; border-top-color: rgba(127, 127, 127, 0.25); line-height: 1.8; font-size: 15px; }
.plan .boton { margin-top: auto; }
.notas { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin-top: 16px; }
.nota-caja { background: var(--tarjeta); border: 1px solid var(--linea); border-radius: 20px; padding: 24px; font-size: 15px; color: var(--tinta-2); line-height: 1.5; }
.nota-caja--punteada { border: 2px dashed var(--tinta); }
.nota-caja__titulo { font-weight: 700; color: var(--tinta); margin-bottom: 6px; }

/* Cierre */
.cierre { display: flex; flex-wrap: wrap; align-items: center; gap: 32px; background: var(--tinta); color: var(--fondo); border-radius: 32px; padding: clamp(32px, 6vw, 64px) clamp(20px, 5vw, 48px); }
.cierre__texto { flex: 1 1 440px; min-width: 0; }
.cierre__texto p { margin-top: 16px; font-size: 18px; opacity: 0.85; }
.cierre__form { flex: 1 1 320px; display: flex; flex-direction: column; gap: 10px; }
.cierre__form label { font-size: 14px; }
.cierre__form input { height: 50px; border: 0; border-radius: 12px; padding: 0 14px; font: 16px var(--texto); color: var(--tinta); }
.cierre__form .boton { margin-top: 6px; }
.cierre__mail { color: var(--fondo); font-size: 14px; text-align: center; margin-top: 4px; }
.cierre__mail:hover { color: var(--felpa); }

/* Pie */
.pie { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; padding-block: 56px 48px; font-size: 14px; color: var(--tenue); }
.pie__marca { font-family: var(--display); font-weight: 700; font-size: 20px; letter-spacing: -0.04em; color: var(--tinta); }

@media (max-width: 640px) {
  .barra__menu { display: none; }
  .barra__fila .boton { margin-left: auto; }
  .portada { padding-top: 40px; }
  .celu { padding: 5px; border-radius: 20px; }
  .celu img { border-radius: 16px; }
  .celu--grande { width: min(280px, 78vw); padding: 8px; border-radius: 32px; }
  .celu--grande img { border-radius: 25px; }
  .seccion { padding-top: 80px; }
  .funcion, .funcion--invertida { flex-direction: column; gap: 28px; }
  .funcion__texto { flex-basis: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}