:root {
  --navy: #07172d;
  --navy-light: #112945;
  --gold: #e7c66d;
  --gold-dark: #a78535;
  --white: #ffffff;
  --cream: #f7f4ed;
  --ink: #17243a;
  --muted: #657184;
  --green: #087c4a;
  --line: #e5e8ee;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  transition: background-color .2s, color .2s,
              transform .2s, border-color .2s;
}

.encabezado {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 7%;
  background: rgba(7, 23, 45, .97);
  border-bottom: 1px solid rgba(231, 198, 109, .35);
}

.marca {
  color: var(--white);
  text-decoration: none;
  font-family: Georgia, serif;
  font-size: 1.8rem;
  font-weight: bold;
  line-height: 1.15;
}

.marca span {
  display: block;
  margin-top: 4px;
  color: var(--gold);
  font-family: Arial, sans-serif;
  font-size: .59rem;
  font-weight: normal;
  letter-spacing: 2px;
}

.contacto {
  padding: 9px 17px;
  border: 1px solid var(--gold);
  border-radius: 5px;
  color: var(--gold);
  text-decoration: none;
  font-size: .9rem;
  font-weight: bold;
}

.contacto:hover {
  background: var(--gold);
  color: var(--navy);
}

.portada {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(65px, 9vw, 115px) 7%;
  color: var(--white);
  background:
    radial-gradient(ellipse at 90% 20%,
      rgba(180, 133, 54, .30), transparent 35%),
    radial-gradient(ellipse at 78% 85%,
      rgba(45, 83, 120, .48), transparent 42%),
    linear-gradient(120deg, var(--navy), #102743 70%, #07172d);
}

.portada::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 430px;
  height: 430px;
  top: 12%;
  right: -180px;
  border: 1px solid rgba(231, 198, 109, .23);
  border-radius: 50%;
  box-shadow:
    0 0 0 25px rgba(231, 198, 109, .035),
    0 0 0 65px rgba(231, 198, 109, .025);
}

.contenido {
  position: relative;
  max-width: 850px;
}

.etiqueta {
  color: var(--gold-dark);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: 2.2px;
  text-transform: uppercase;
}

.portada .etiqueta {
  color: var(--gold);
}

.cupo {
  display: inline-block;
  margin: 12px 0;
  padding: 5px 15px;
  border: 1px solid rgba(231, 198, 109, .8);
  border-radius: 30px;
  color: var(--gold);
  font-size: .8rem;
  font-weight: bold;
  letter-spacing: .8px;
}

h1 {
  margin: 23px 0;
  font-size: clamp(2.8rem, 7vw, 5.6rem);
  font-weight: 800;
  letter-spacing: -2.5px;
  line-height: .99;
}

h1 span {
  display: block;
  margin-top: 8px;
  color: var(--gold);
}

.descripcion {
  max-width: 650px;
  color: #dce4ef;
  font-size: clamp(1.02rem, 2vw, 1.25rem);
  line-height: 1.75;
}

.datos {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 25px;
  margin: 30px 0;
}

.datos p {
  margin: 0;
  padding-left: 13px;
  border-left: 2px solid var(--gold);
  color: #e1e7f0;
}

.datos strong {
  color: var(--white);
}

.precio-label {
  margin: 0;
  color: var(--gold);
  font-size: .83rem;
  font-weight: bold;
  letter-spacing: 2px;
}

.precio {
  margin: 0 0 23px;
  color: var(--white);
  font-size: clamp(2.6rem, 6vw, 4.1rem);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.3;
}

.precio small {
  color: var(--gold);
  font-size: .95rem;
  letter-spacing: 0;
}

.boton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 14px 23px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--green);
  color: var(--white);
  text-align: center;
  text-decoration: none;
  font-size: .98rem;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .13);
}

.boton:hover {
  transform: translateY(-2px);
  background: #09683f;
}

.nota {
  color: #bac7d8;
  font-size: .83rem;
}

.seccion {
  padding: clamp(55px, 8vw, 90px) 7%;
}

.seccion > .etiqueta,
.inscripcion > .etiqueta {
  margin-bottom: 10px;
}

h2 {
  max-width: 780px;
  margin: 12px 0 30px;
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.16;
}

.tarjetas {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 35px;
}

.tarjeta {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 8px 28px rgba(7, 23, 45, .045);
  transition: transform .2s, box-shadow .2s;
}

.tarjeta:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(7, 23, 45, .09);
}

.tarjeta span {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: var(--cream);
  color: var(--gold-dark);
  font-weight: 800;
}

.tarjeta h3 {
  margin: 18px 0 10px;
  color: var(--navy);
  font-size: 1.2rem;
  line-height: 1.35;
}

.tarjeta p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: .95rem;
}

.inscripcion {
  padding: clamp(55px, 8vw, 85px) 7%;
  background: var(--cream);
  text-align: center;
}

.inscripcion h2 {
  margin-right: auto;
  margin-left: auto;
}

.inscripcion > p:not(.etiqueta) {
  max-width: 660px;
  margin: 0 auto 25px;
  color: var(--muted);
}

.inscripcion .boton {
  margin-top: 5px;
}

.inscripcion .nota {
  margin-top: 18px;
}

footer {
  padding: 25px 7%;
  background: var(--navy);
  color: #d4dce8;
  text-align: center;
  font-size: .84rem;
}

footer p {
  margin: 5px 0;
}

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

@media (max-width: 760px) {
  .encabezado {
    padding: 13px 5%;
  }

  .marca {
    font-size: 1.5rem;
  }

  .contacto {
    padding: 8px 10px;
    font-size: .8rem;
  }

  .portada,
  .seccion,
  .inscripcion {
    padding-right: 6%;
    padding-left: 6%;
  }

  h1 {
    letter-spacing: -1.5px;
  }

  .tarjetas {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .datos {
    flex-direction: column;
    gap: 12px;
  }

  .precio {
    letter-spacing: -1px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

.carrito-seccion {
  background: #f7f4ed;
}

.precio-tarjeta {
  color: #896a25;
  font-size: 1.2rem;
  font-weight: 800;
}

.fila-carrito {
  margin: 15px 0;
}

.fila-carrito h3 {
  margin-top: 0;
}

.boton-secundario {
  background: #fff;
  border-color: #d8dce4;
  color: #17243a;
  box-shadow: none;
}

.boton-secundario:hover {
  background: #eceff4;
}

.resumen-carrito {
  margin-top: 25px;
  padding: 24px;
  border: 1px solid #e0e3e9;
  border-radius: 12px;
  background: #fff;
}

.resumen-carrito h3 {
  color: #07172d;
}

.resumen-carrito p {
  color: #657184;
}

.categoria-catalogo {
  grid-column: 1 / -1;
  margin: 24px 0 0;
  padding-bottom: 10px;
  border-bottom: 1px solid #e7c66d;
  color: #07172d;
  font-size: 1.5rem;
}

.curso .precio small {
  line-height: 1.5;
}