/* ==========================================================================
   COLEGIO DIEGO COLÓN — Landing page
   HTML5 + CSS3, sin librerías externas. Diseño mobile-first.
   Índice:
     1. Variables y base
     2. Utilidades (contenedor, títulos, animaciones)
     3. Hero
     4. Redes sociales
     5. Propuesta educativa
     6. Llamado a WhatsApp
     7. Footer
     8. Responsive (tablet / escritorio)
     9. Accesibilidad y preferencias del usuario
   ========================================================================== */

/* ==========================================================================
   1. VARIABLES Y BASE
   ========================================================================== */

:root {
  /* Colores institucionales */
  --azul: #174F84;
  --azul-2: #2F78BD;
  --azul-oscuro: #103A62;
  --naranja: #F58220;
  --naranja-claro: #FFA24D;
  --blanco: #FFFFFF;
  --gris: #F4F7FA;

  /* Texto */
  --texto: #1B2A3A;
  --texto-suave: #5A6B7D;
  --texto-claro: rgba(255, 255, 255, .86);

  /* Bordes y sombras */
  --radio: 18px;
  --radio-lg: 26px;
  --sombra-sm: 0 2px 8px rgba(16, 58, 98, .06);
  --sombra: 0 10px 28px rgba(16, 58, 98, .10);
  --sombra-lg: 0 18px 44px rgba(16, 58, 98, .16);

  /* Layout */
  --ancho: 1100px;
  --transicion: .25s cubic-bezier(.4, .12, .2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  /* Solo fuentes del sistema: cero peticiones de red por tipografía */
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--texto);
  background: var(--gris);
  overflow-x: hidden; /* evita cualquier scroll horizontal por las formas decorativas */
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -.02em;
  text-wrap: balance;
}

p {
  margin: 0;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ==========================================================================
   2. UTILIDADES
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--ancho);
  margin-inline: auto;
  padding-inline: 20px;
}

.eyebrow {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--naranja);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.55rem, 5.6vw, 2.3rem);
  font-weight: 800;
  color: var(--azul);
}

.section-text {
  margin-top: 14px;
  color: var(--texto-suave);
  font-size: 1.02rem;
  max-width: 56ch;
}

.accent {
  color: var(--naranja-claro);
}

/* Entrada suave del contenido del hero */
@keyframes subir {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

@keyframes girar {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   3. HERO
   ========================================================================== */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 46px 0 96px;
  text-align: center;
  color: var(--blanco);
  background:
    radial-gradient(120% 85% at 50% -10%, #2F78BD 0%, rgba(47, 120, 189, 0) 62%),
    linear-gradient(165deg, #1B5B98 0%, #174F84 46%, #103A62 100%);
}

/* Círculos difusos de profundidad */
.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  opacity: .5;
  z-index: -1;
  pointer-events: none;
}

.hero__blob--a {
  width: 260px;
  height: 260px;
  top: -110px;
  right: -90px;
  background: radial-gradient(circle at 30% 30%, rgba(245, 130, 32, .55), rgba(245, 130, 32, 0) 70%);
}

.hero__blob--b {
  width: 320px;
  height: 320px;
  bottom: -140px;
  left: -130px;
  background: radial-gradient(circle at 60% 40%, rgba(120, 190, 255, .40), rgba(120, 190, 255, 0) 70%);
}

/* Aro fino decorativo */
.hero__ring {
  position: absolute;
  top: -70px;
  left: 50%;
  width: 420px;
  height: 420px;
  margin-left: -210px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 50%;
  z-index: -1;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  animation: subir .7s ease-out both;
}

.hero__layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

/* Marco de video vertical (9:16) */
.hero-video {
  width: 100%;
  max-width: 290px;
  margin: 0;
  flex-shrink: 0;
  order: -1; /* En móvil: video primero en la primera vista */
}

.hero-video__label {
  display: block;
  margin-bottom: 10px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  text-align: center;
  color: var(--naranja-claro);
}

.hero-video__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: min(52vh, 520px);
  padding: 4px;
  border-radius: 28px;
  background: linear-gradient(145deg, var(--naranja) 0%, rgba(255, 255, 255, .35) 50%, var(--naranja-claro) 100%);
  box-shadow:
    0 22px 48px rgba(0, 0, 0, .28),
    0 0 0 1px rgba(255, 255, 255, .12);
}

.hero-video__glow {
  position: absolute;
  inset: -18px;
  border-radius: 36px;
  background: radial-gradient(circle at 50% 30%, rgba(245, 130, 32, .35), rgba(245, 130, 32, 0) 68%);
  z-index: -1;
  pointer-events: none;
}

.hero-video__player {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
  background: var(--azul-oscuro);
}

/* Escudo dentro de un disco blanco con halo naranja */
.hero__badge {
  position: relative;
  width: 138px;
  height: 138px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 50%;
  background: var(--blanco);
  box-shadow: 0 14px 34px rgba(0, 0, 0, .22);
}

.hero__badge::before {
  content: "";
  position: absolute;
  inset: -11px;
  border-radius: 50%;
  background: conic-gradient(from 210deg, var(--naranja), #FFC684, var(--naranja-claro), var(--naranja));
  z-index: -1;
  animation: girar 22s linear infinite;
}

.hero__badge img {
  width: 112px;
  height: auto;
}

.hero__brand {
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .82);
}

.hero__title {
  margin-top: 12px;
  font-size: clamp(1.85rem, 8.2vw, 3.4rem);
  font-weight: 800;
  max-width: 17ch;
}

.hero__level {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
}

.chip {
  display: inline-block;
  padding: 6px 16px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--blanco);
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
}

.chip-sep {
  color: var(--naranja-claro);
  font-weight: 700;
}

.hero__text {
  margin-top: 18px;
  max-width: 44ch;
  color: var(--texto-claro);
  font-size: 1.02rem;
}

.hero__place {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: .9rem;
  color: rgba(255, 255, 255, .72);
}

.pin {
  color: var(--naranja-claro);
  flex-shrink: 0;
}

/* Botón principal del hero */
.btn-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 340px;
  min-height: 56px;
  margin-top: 28px;
  padding: 0 30px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--blanco);
  background: linear-gradient(135deg, var(--naranja) 0%, #E06E10 100%);
  border-radius: 999px;
  box-shadow: 0 12px 26px rgba(245, 130, 32, .34);
  transition: transform var(--transicion), box-shadow var(--transicion);
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(245, 130, 32, .44);
}

.btn-hero:active {
  transform: translateY(0) scale(.985);
  box-shadow: 0 8px 18px rgba(245, 130, 32, .3);
}

/* Onda inferior */
.hero__wave {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 62px;
  display: block;
}

/* ==========================================================================
   4. REDES SOCIALES
   ========================================================================== */

.social {
  padding: 44px 0 8px;
  text-align: center;
}

.social .section-text {
  margin-inline: auto;
}

.social__list {
  display: grid;
  gap: 14px;
  margin-top: 30px;
  text-align: left;
}

.social-btn {
  --marca: var(--azul-2);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  min-height: 82px;
  background: var(--blanco);
  border: 1px solid rgba(23, 79, 132, .09);
  border-radius: var(--radio);
  box-shadow: var(--sombra-sm);
  transition: transform var(--transicion), box-shadow var(--transicion), border-color var(--transicion);
}

.social-btn:hover {
  transform: translateY(-3px);
  border-color: rgba(23, 79, 132, .16);
  box-shadow: var(--sombra);
}

.social-btn:active {
  transform: translateY(-1px) scale(.99);
  box-shadow: var(--sombra-sm);
}

.social-btn__icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  color: var(--blanco);
  background: var(--marca);
  border-radius: 15px;
  transition: transform var(--transicion);
}

.social-btn:hover .social-btn__icon {
  transform: scale(1.06) rotate(-3deg);
}

.social-btn__body {
  flex: 1 1 auto;
  min-width: 0;
}

.social-btn__name {
  display: block;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--azul);
}

.social-btn__desc {
  display: block;
  font-size: .88rem;
  line-height: 1.4;
  color: var(--texto-suave);
}

.social-btn__arrow {
  flex: 0 0 auto;
  color: var(--naranja);
  transition: transform var(--transicion);
}

.social-btn:hover .social-btn__arrow {
  transform: translateX(4px);
}

/* Color de marca solo en el icono, para mantener la paleta sobria */
.social-btn--fb { --marca: linear-gradient(135deg, #2F78BD, #1877F2); }
.social-btn--ig { --marca: linear-gradient(135deg, #F58220, #DD2A7B 58%, #8134AF); }
.social-btn--wa { --marca: linear-gradient(135deg, #34D06E, #1FA855); }

/* ==========================================================================
   5. PROPUESTA EDUCATIVA
   ========================================================================== */

.propuesta {
  padding: 50px 0 54px;
  text-align: center;
}

.propuesta .section-title {
  max-width: 22ch;
  margin-inline: auto;
}

.propuesta__foto {
  max-width: 520px;
  margin: 28px auto 0;
  border-radius: var(--radio-lg);
  overflow: hidden;
  background: var(--blanco);
  box-shadow: var(--sombra);
}

.propuesta__foto img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 960 / 1050;
  object-fit: cover;
}

.cards {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.card {
  position: relative;
  overflow: hidden;
  padding: 26px 22px;
  background: var(--blanco);
  border: 1px solid rgba(23, 79, 132, .08);
  border-radius: var(--radio-lg);
  box-shadow: var(--sombra-sm);
  transition: transform var(--transicion), box-shadow var(--transicion);
}

/* Línea superior de acento */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--azul-2), var(--naranja));
  opacity: 0;
  transition: opacity var(--transicion);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sombra);
}

.card:hover::before {
  opacity: 1;
}

.card__icon {
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  color: var(--azul);
  background: linear-gradient(145deg, #EAF2FA, #DCE9F6);
  border-radius: 20px;
}

.card__title {
  font-size: .84rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--naranja);
}

.card__text {
  margin-top: 10px;
  color: var(--texto-suave);
  font-size: .98rem;
}

/* Versículo bíblico */
.versiculo {
  margin: 36px auto 0;
  max-width: 36ch;
  padding: 28px 24px;
  text-align: center;
  background: var(--blanco);
  border: 1px solid rgba(23, 79, 132, .08);
  border-radius: var(--radio-lg);
  box-shadow: var(--sombra-sm);
}

.versiculo__texto {
  font-size: clamp(1.05rem, 4vw, 1.25rem);
  font-style: italic;
  font-weight: 600;
  line-height: 1.55;
  color: var(--azul);
}

.versiculo__ref {
  display: block;
  margin-top: 12px;
  font-size: .88rem;
  font-weight: 700;
  font-style: normal;
  letter-spacing: .06em;
  color: var(--naranja);
}

/* ==========================================================================
   6. LLAMADO A WHATSAPP
   ========================================================================== */

.cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 56px 0 62px;
  text-align: center;
  color: var(--blanco);
  background:
    radial-gradient(100% 120% at 50% 0%, #2F78BD 0%, rgba(47, 120, 189, 0) 58%),
    linear-gradient(160deg, #174F84 0%, #103A62 100%);
}

.cta__glow {
  position: absolute;
  width: 300px;
  height: 300px;
  right: -110px;
  bottom: -140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 130, 32, .40), rgba(245, 130, 32, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

.cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta__title {
  font-size: clamp(1.7rem, 6.6vw, 2.5rem);
  font-weight: 800;
}

.cta__text {
  margin-top: 14px;
  max-width: 48ch;
  color: var(--texto-claro);
}

.btn-wa {
  --wa: #25D366;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  max-width: 400px;
  min-height: 62px;
  margin-top: 26px;
  padding: 0 26px;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--blanco);
  background: transparent;
  border: 2.5px solid var(--wa);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(37, 211, 102, .18);
  transition: transform var(--transicion), box-shadow var(--transicion), background var(--transicion), border-color var(--transicion);
}

.btn-wa__icon {
  flex-shrink: 0;
  color: var(--wa);
}

.btn-wa:hover {
  transform: translateY(-3px);
  background: rgba(37, 211, 102, .12);
  border-color: #34D06E;
  box-shadow: 0 12px 32px rgba(37, 211, 102, .28);
}

.btn-wa:active {
  transform: translateY(0) scale(.985);
  background: rgba(37, 211, 102, .18);
  box-shadow: 0 6px 16px rgba(37, 211, 102, .2);
}

.cta__note {
  margin-top: 16px;
  font-size: .88rem;
  color: rgba(255, 255, 255, .72);
}

/* ==========================================================================
   7. FOOTER
   ========================================================================== */

.footer {
  padding: 40px 0 34px;
  text-align: center;
  color: var(--texto-suave);
  background: var(--blanco);
  border-top: 1px solid rgba(23, 79, 132, .08);
}

.footer__logo {
  width: 62px;
  height: auto;
  margin: 0 auto 14px;
}

.footer__brand {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--azul);
}

.footer__slogan {
  margin-top: 6px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--azul-2);
}

.footer__meta {
  margin-top: 4px;
  font-size: .9rem;
}

.footer__legal {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(23, 79, 132, .08);
  font-size: .8rem;
  color: #8A99A8;
}

/* ==========================================================================
   8. RESPONSIVE
   ========================================================================== */

/* --- Tablet --- */
@media (min-width: 600px) {

  .container {
    padding-inline: 32px;
  }

  .hero {
    padding: 60px 0 116px;
  }

  .hero-video {
    max-width: 320px;
    max-height: none;
  }

  .hero-video__frame {
    max-height: min(58vh, 560px);
  }

  .hero__badge {
    width: 164px;
    height: 164px;
  }

  .hero__badge img {
    width: 134px;
  }

  .hero__wave {
    height: 84px;
  }

  .btn-hero {
    width: auto;
  }

  .social {
    padding-top: 56px;
  }

  .social-btn {
    padding: 20px 22px;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .btn-wa {
    width: auto;
  }
}

/* --- Escritorio --- */
@media (min-width: 960px) {

  .hero {
    padding: 76px 0 140px;
  }

  .hero__layout {
    display: grid;
    grid-template-columns: 1fr minmax(260px, 320px);
    align-items: center;
    gap: 48px;
    text-align: left;
  }

  .hero__content {
    align-items: flex-start;
    text-align: left;
  }

  .hero-video {
    order: 0;
    max-width: 320px;
    justify-self: center;
  }

  .hero-video__label {
    text-align: center;
  }

  .hero__title {
    max-width: 14ch;
  }

  .hero__text {
    max-width: 42ch;
  }

  .btn-hero {
    align-self: flex-start;
  }

  .hero__ring {
    width: 620px;
    height: 620px;
    margin-left: -310px;
    top: -110px;
  }

  .hero__blob--a { width: 380px; height: 380px; right: -120px; }
  .hero__blob--b { width: 460px; height: 460px; left: -160px; }

  .hero__wave {
    height: 110px;
  }

  .social {
    padding-top: 66px;
  }

  .social__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  /* En escritorio los botones se apilan en vertical dentro de 3 columnas */
  .social-btn {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    min-height: 200px;
    padding: 26px;
  }

  .social-btn__arrow {
    margin-top: auto;
    align-self: flex-end;
  }

  .social-btn:hover .social-btn__icon {
    transform: scale(1.06) rotate(-4deg);
  }

  .propuesta {
    padding: 70px 0 76px;
  }

  .propuesta .section-title {
    max-width: 30ch;
  }

  .propuesta__foto {
    max-width: 640px;
    margin-top: 32px;
  }

  .card {
    padding: 32px 26px;
  }

  .cta {
    padding: 82px 0 88px;
  }
}

/* ==========================================================================
   9. ACCESIBILIDAD Y PREFERENCIAS DEL USUARIO
   ========================================================================== */

/* Foco visible y consistente para navegación con teclado */
a:focus-visible {
  outline: 3px solid var(--naranja);
  outline-offset: 3px;
  border-radius: 12px;
}

.hero a:focus-visible,
.cta a:focus-visible {
  outline-color: var(--blanco);
}

/* Respeta a quienes prefieren menos movimiento */
@media (prefers-reduced-motion: reduce) {

  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}