/* ==========================================================
   Rich Article · Amazon Ads × Nescafé · Expansión
   Bootstrap 5.2 + estilos propios
   ========================================================== */

:root {
  --nes-red: #d6001c;
  --nes-red-dark: #a30015;
  --ink: #1c1f2a;          /* azul marino Amazon Ads */
  --ink-soft: #3a3f4d;
  --cream: #f8f3ec;
  --line: #e6dfd5;
  --amz-orange: #ff9900;

  --bs-body-font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --bs-body-color: var(--ink-soft);
  --bs-link-color: var(--nes-red);
  --bs-link-hover-color: var(--nes-red-dark);
}

body {
  background: #fff;
  font-size: 1.125rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { text-underline-offset: .2em; }

/* ---------- Header Expansión ---------- */
header.exp-topbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: #ed1c24;
  border-bottom: 3px solid #3d3d3d;
  box-shadow: 0 2px 20px rgba(0,0,0,.25);
  transition: box-shadow .3s ease;
}
header.exp-topbar.is-scrolled { box-shadow: 0 4px 30px rgba(0,0,0,.5); }
.exp-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4rem;
}
/* logo-exp-1.svg trae fondo rojo y margen propio: 48px ≈ letras de 30px */
.logoExpansion {
  height: 28px;
  width: auto;
  margin: .5rem 0;
  display: block;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: min(88vh, 860px);
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
}
.hero__img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 60% 50%;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(28,31,42,.05) 20%, rgba(28,31,42,.55) 55%, rgba(28,31,42,.92) 100%);
}
.hero__content { position: relative; padding-top: 6rem; padding-bottom: 4rem; }
.hero__title {
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 700;
  font-size: clamp(2rem, 4.6vw, 3.6rem);
  line-height: 1.12;
  margin-bottom: 1.25rem;
  text-wrap: balance;
}
.hero__intro {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.6;
  color: #e9eaf0;
  max-width: 44rem;
}
.hero__byline { font-size: .9rem; color: #c9ccd6; margin: 1.5rem 0 0; }
.hero__byline a { color: #fff; font-weight: 700; }

/* ---------- Bloques ---------- */
.block { padding: 5rem 0; }
.block--cream { background: var(--cream); }
.block__title {
  font-family: "Playfair Display", Georgia, serif;
  color: var(--ink);
  font-weight: 700;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.2;
  margin-bottom: 1.75rem;
}
.block p { margin-bottom: 1.4rem; }

.media { margin: 2.5rem 0; }
.media img { border-radius: 6px; width: 100%; }

/* ---------- Citas ---------- */
.feature-quote {
  position: relative;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
  padding: 3.5rem 2rem 2.5rem;
  margin: 2rem 0 3rem;
}
.feature-quote::before {
  content: "“";
  position: absolute;
  top: -.35em; left: 1.5rem;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 7rem;
  line-height: 1;
  color: var(--nes-red);
}
.feature-quote p {
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  line-height: 1.45;
  margin-bottom: 1.5rem;
}
.feature-quote footer { color: #c9ccd6; font-size: .95rem; }
.feature-quote footer strong { color: #fff; }
@media (min-width: 768px) {
  .feature-quote { padding: 4rem 4rem 3rem; }
}

/* ---------- Flip cards ---------- */
.flip-card {
  display: block;
  width: 100%;
  height: 280px;
  padding: 0;
  border: 0;
  background: transparent;
  perspective: 1200px;
  cursor: pointer;
  text-align: center;
  font: inherit;
}
.flip-card:focus-visible { outline: 3px solid var(--amz-orange); outline-offset: 4px; border-radius: 10px; }
.flip-card__inner {
  position: relative;
  display: block;
  width: 100%; height: 100%;
  transition: transform .7s cubic-bezier(.2,.7,.2,1);
  transform-style: preserve-3d;
}
.flip-card.is-flipped .flip-card__inner { transform: rotateY(180deg); }
@media (hover: hover) {
  .flip-card:hover .flip-card__inner { transform: rotateY(180deg); }
}
.flip-card__face {
  position: absolute; inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  border-radius: 10px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.flip-card__front {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 10px 30px rgba(28,31,42,.18);
}
.flip-card__icon { color: var(--amz-orange); margin-bottom: 1rem; }
.flip-card__title { font-size: 1.4rem; font-weight: 700; line-height: 1.25; }
.flip-card__back {
  background: var(--nes-red);
  color: #fff;
  font-size: 1.05rem;
  line-height: 1.55;
  transform: rotateY(180deg);
}

@media (prefers-reduced-motion: reduce) {
  .flip-card__inner { transition: none; }
}

/* ---------- Carrusel ---------- */
.display-carousel { border-radius: 6px; overflow: hidden; box-shadow: 0 10px 30px rgba(28,31,42,.12); }
.display-carousel .carousel-indicators { margin-bottom: .5rem; }
.display-carousel .carousel-indicators [data-bs-target] { background-color: var(--ink); }

/* ---------- Video ---------- */
.video-wrap { background: var(--ink); border-radius: 6px; overflow: hidden; }
.video-wrap iframe { border: 0; }

/* ---------- CTA ---------- */
.btn-cta {
  --bs-btn-bg: var(--nes-red);
  --bs-btn-border-color: var(--nes-red);
  --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--ink);
  --bs-btn-hover-border-color: var(--ink);
  --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: var(--ink);
  --bs-btn-active-border-color: var(--ink);
  --bs-btn-focus-shadow-rgb: 214, 0, 28;
  font-weight: 700;
  padding: 1rem 2.25rem;
  border-radius: 50rem;
}

/* ---------- Footer ---------- */
.article-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 3rem;
  font-size: .85rem;
  color: #7a7f8c;
}

/* ---------- Animación de aparición ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 767.98px) {
  body { font-size: 1.05rem; }
  .block { padding: 3.5rem 0; }
  .hero { min-height: min(92vh, 780px); }
  .hero__content { padding-bottom: 2.5rem; }
  .exp-topbar-inner { padding: 0 1rem; }
  .flip-card { height: 240px; }
}