/* =========================================================
   Elisa — Landing page
   Paleta derivada del logo (ver CLAUDE.md para el detalle).
   ========================================================= */

:root {
  /* Marca (muestreados directamente del logo) */
  --color-teal: #0ca8b0;
  --color-teal-dark: #087c83;
  --color-navy: #0a3b68;
  --color-navy-dark: #071f36;

  /* Derivados de la marca para texto y superficies */
  --color-ink: #16293b;
  --color-muted: #5b6b78;
  --color-muted-light: #8b98a3;
  --color-bg: #ffffff;
  --color-bg-alt: #f3fafb;
  --color-bg-tint: #eef5f8;
  --color-border: #e1e8ec;

  --gradient-brand: linear-gradient(135deg, var(--color-teal) 0%, var(--color-navy) 100%);
  --gradient-brand-soft: linear-gradient(135deg, #e8f7f8 0%, #eaf0f6 100%);

  --font-sans: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;

  --container-width: 1160px;
  --container-width-narrow: 760px;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(10, 40, 70, 0.06), 0 1px 1px rgba(10, 40, 70, 0.04);
  --shadow-md: 0 12px 32px rgba(10, 40, 70, 0.10);
  --shadow-lg: 0 24px 60px rgba(10, 40, 70, 0.14);

  --transition-base: 220ms ease;
  --transition-slow: 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--color-navy-dark);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--color-navy);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  transition: top var(--transition-base);
  z-index: 100;
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.container--narrow {
  max-width: var(--container-width-narrow);
}

.section {
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__heading {
  max-width: 620px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.section__heading--left {
  margin-inline: 0;
  text-align: left;
}

.section__heading h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  margin-top: 0.5rem;
}

.section__subtitle {
  margin-top: 0.75rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-teal-dark);
  margin: 0 0 0.75rem;
}

/* ---------- Botones ---------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base), color var(--transition-base);
  white-space: nowrap;
}

.button--primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.button--primary:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.button--ghost {
  background: transparent;
  color: var(--color-navy);
  border: 1.5px solid var(--color-border);
}

.button--ghost:hover {
  border-color: var(--color-navy);
  background: var(--color-bg-alt);
}

.button--on-dark {
  background: #fff;
  color: var(--color-navy);
}

.button--on-dark:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.button--large {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.button--small {
  padding: 0.55rem 1.15rem;
  font-size: 0.9rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.9rem;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.brand__logo {
  height: 34px;
  width: auto;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  margin-inline: auto;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.5rem 1.5rem;
  box-shadow: var(--shadow-md);

  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.site-nav.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav a {
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 500;
  padding: 0.6rem 0;
}

.site-nav a.button {
  margin-top: 0.5rem;
  padding: 0.55rem 1.15rem;
}

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(3rem, 8vw, 5.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

.hero__inner {
  max-width: 760px;
  text-align: center;
  margin-inline: auto;
}

.hero h1 {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
}

.hero__subtitle {
  margin-top: 1.25rem;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-muted);
  max-width: 620px;
  margin-inline: auto;
}

.hero__actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
}

/* Espacio del video: proporción 16:9, fondo sutil de marca.
   Sin ningún indicio visual de "falta contenido". */
.video-frame {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.video-frame__surface,
.video-frame__media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.video-frame__surface {
  background:
    radial-gradient(120% 140% at 15% 15%, rgba(12, 168, 176, 0.35), transparent 55%),
    radial-gradient(120% 140% at 85% 85%, rgba(10, 59, 104, 0.55), transparent 55%),
    linear-gradient(135deg, #0e2f4d 0%, #0a3b68 55%, #0c8e97 100%);
}

/* ---------- Pasos ---------- */
.steps {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

.steps__item {
  position: relative;
  padding-left: 3.75rem;
}

.steps__number {
  position: absolute;
  left: 0;
  top: 0;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.steps__item h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.steps__item p {
  color: var(--color-muted);
}

/* ---------- Características ---------- */
.features {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.feature-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tint);
  color: var(--color-teal-dark);
  margin-bottom: 1.1rem;
}

.feature-card__icon svg {
  width: 22px;
  height: 22px;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--color-muted);
  font-size: 0.98rem;
}

/* ---------- Privacidad ---------- */
.privacy__inner {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

.privacy__lead {
  margin-top: 1rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.privacy__list {
  display: grid;
  gap: 1.75rem;
}

.privacy__list h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.privacy__list p {
  color: var(--color-muted);
}

.privacy__list li {
  padding-left: 1.25rem;
  border-left: 3px solid var(--color-teal);
}

/* ---------- Precios ---------- */
.pricing-card {
  max-width: 520px;
  margin-inline: auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3rem);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
}

.pricing-card__amount {
  font-size: clamp(2.5rem, 6vw, 3.25rem);
  font-weight: 700;
  color: var(--color-navy-dark);
  letter-spacing: -0.02em;
}

.pricing-card__period {
  color: var(--color-muted);
  font-size: 1rem;
}

.pricing-card__plus {
  margin-top: 0.5rem;
  color: var(--color-teal-dark);
  font-weight: 600;
}

.pricing-card__features {
  margin: 2rem 0;
  display: grid;
  gap: 0.85rem;
  text-align: left;
}

.pricing-card__features li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--color-ink);
}

.pricing-card__features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gradient-brand);
}

.pricing-card__cta {
  width: 100%;
}

.pricing-card__note {
  margin-top: 1.25rem;
  font-size: 0.85rem;
  color: var(--color-muted-light);
}

/* ---------- FAQ ---------- */
.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-navy-dark);
}

.faq__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--transition-base);
}

.faq__icon::before {
  left: 0;
  top: 9px;
  width: 20px;
  height: 2px;
}

.faq__icon::after {
  left: 9px;
  top: 0;
  width: 2px;
  height: 20px;
}

.faq__question[aria-expanded="true"] .faq__icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows var(--transition-slow);
}

.faq__answer > p {
  overflow: hidden;
  color: var(--color-muted);
  padding-bottom: 0;
}

.faq__item.is-open .faq__answer {
  grid-template-rows: 1fr;
}

.faq__item.is-open .faq__answer > p {
  padding-bottom: 1.35rem;
}

/* ---------- CTA final ---------- */
.cta-final {
  background: var(--gradient-brand);
  color: #fff;
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.cta-final__inner {
  max-width: 620px;
  text-align: center;
  margin-inline: auto;
}

.cta-final h2 {
  color: #fff;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.cta-final p {
  margin-top: 1rem;
  opacity: 0.92;
  font-size: 1.1rem;
}

.cta-final .button {
  margin-top: 2rem;
}

/* ---------- Footer ---------- */
.site-footer {
  padding-block: 3rem;
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.site-footer__brand p {
  margin-top: 0.6rem;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}

.site-footer__nav a {
  text-decoration: none;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.site-footer__nav a:hover {
  color: var(--color-navy);
}

.site-footer__copy {
  color: var(--color-muted-light);
  font-size: 0.82rem;
}

/* ---------- Animaciones de entrada ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Breakpoints ---------- */
@media (min-width: 720px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .features {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy__inner {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .site-nav a {
    padding: 0;
    font-size: 0.95rem;
  }

  .features {
    grid-template-columns: repeat(3, 1fr);
  }

  .site-footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}