/* ============================================================
   CICA LIFE — Reset y estilos base
   Requiere: variables.css cargado antes
   ============================================================ */

/* ----------------------------------------------------------
   RESET MODERNO
   ---------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-overflow-scrolling: touch;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

/* iOS: elimina el highlight al tocar elementos interactivos */
button, a, [role="button"] {
  -webkit-tap-highlight-color: transparent;
}

/* iOS: reset de apariencia nativa en selects e inputs numéricos */
select,
input[type="number"],
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
}

p, h1, h2, h3, h4 {
  overflow-wrap: break-word;
}

ul, ol {
  list-style: none;
}

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

/* ----------------------------------------------------------
   TIPOGRAFÍA BASE
   ---------------------------------------------------------- */
h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-height-heading);
}

h2 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-heading);
}

h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

p {
  line-height: var(--line-height-body);
}

small {
  font-size: var(--font-size-small);
}

/* ----------------------------------------------------------
   LAYOUT — Contenedor
   ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
}

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

/* ----------------------------------------------------------
   LAYOUT — Secciones
   ---------------------------------------------------------- */
.section {
  padding-block: var(--section-padding-mobile);
}

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

.section--dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
}

@media (min-width: 1024px) {
  .section {
    padding-block: var(--section-padding-desktop);
  }
}

/* ----------------------------------------------------------
   BOTONES
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  border: none;
  border-radius: var(--border-radius-btn);
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  box-shadow: var(--shadow-btn);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--color-primary-hover);
  box-shadow: 0 6px 18px rgba(27, 108, 168, 0.40);
}

.btn--secondary {
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  box-shadow: 0 4px 14px rgba(39, 174, 96, 0.30);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background-color: var(--color-secondary-hover);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: var(--border-width) solid var(--color-primary);
  box-shadow: none;
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background-color: var(--color-primary-light);
}

.btn--lg {
  padding: var(--space-5) var(--space-10);
  font-size: 20px;
  border-radius: var(--border-radius-btn);
}

.btn--full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ----------------------------------------------------------
   TARJETAS
   ---------------------------------------------------------- */
.card {
  background-color: var(--color-bg);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-card);
  box-shadow: var(--shadow-card);
  padding: var(--space-8);
}

/* ----------------------------------------------------------
   BADGES / ETIQUETAS
   ---------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-bold);
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--accent {
  background-color: var(--color-accent);
  color: var(--color-bg-dark);
}

.badge--success {
  background-color: var(--color-secondary);
  color: var(--color-text-light);
}

.badge--trust {
  background-color: var(--color-trust);
  color: var(--color-text-light);
}

/* ----------------------------------------------------------
   FORMULARIOS
   ---------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-btn);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 108, 168, 0.15);
}

.form-input--error {
  border-color: var(--color-error);
}

.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.form-error {
  font-size: var(--font-size-small);
  color: var(--color-error);
}

.form-hint {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

/* ----------------------------------------------------------
   ACCESIBILIDAD
   ---------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.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;
}

/* ----------------------------------------------------------
   UTILIDADES
   ---------------------------------------------------------- */
.text-center  { text-align: center; }
.text-muted   { color: var(--color-text-muted); }
.text-accent  { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-light   { color: var(--color-text-light); }

.mt-auto { margin-top: auto; }
.mb-0    { margin-bottom: 0; }

/* ----------------------------------------------------------
   NAVBAR
   ---------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-bg-dark);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: var(--border-width) solid var(--color-border-dark);
  transition: box-shadow var(--transition-base),
              border-color var(--transition-base);
}

.navbar--scrolled {
  box-shadow: var(--shadow-card);
  border-bottom-color: transparent;
}

.navbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.navbar__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.navbar__logo:focus-visible {
  border-radius: var(--border-radius-sm);
}

.navbar__logo-img {
  display: block;
  height: 32px;
  width: auto;
}

@media (min-width: 768px) {
  .navbar__logo-img {
    height: 40px;
  }
}

.navbar__cta {
  font-size: var(--font-size-small);
  padding-block: var(--space-2);
  padding-inline: var(--space-3);
  white-space: normal;
  text-align: center;
}

@media (min-width: 768px) {
  .navbar__container {
    height: 64px;
  }

  .navbar__cta {
    font-size: var(--font-size-body);
    padding-inline: var(--space-8);
  }
}

/* ----------------------------------------------------------
   FOOTER
   ---------------------------------------------------------- */
.footer {
  background-color: var(--color-bg-alt);
  border-top: var(--border-width) solid var(--color-border);
  padding-block: var(--space-12);
}

.footer__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  text-align: center;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.footer__logo:focus-visible {
  border-radius: var(--border-radius-sm);
}

.footer__logo-img {
  display: block;
  height: 28px;
  width: auto;
}

@media (min-width: 768px) {
  .footer__logo-img {
    height: 36px;
  }
}

.footer__backed-by {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

.footer__backed-by-logo {
  display: block;
  height: 24px;
  width: auto;
}

.footer__legal {
  max-width: var(--container-reading);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  line-height: var(--line-height-body);
}

.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__link {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus-visible {
  color: var(--color-primary);
}

.footer__separator {
  color: var(--color-border);
  font-size: var(--font-size-small);
}

.footer__copyright {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

/* ----------------------------------------------------------
   STICKY CTA (mobile only)
   ---------------------------------------------------------- */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-bg);
  border-top: var(--border-width) solid var(--color-border);
  padding: var(--space-3);
  transform: translateY(0);
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

.sticky-cta--hidden {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}

.sticky-cta__inner {
  padding-inline: 0;
}

@media (min-width: 768px) {
  .sticky-cta {
    display: none;
  }
}

/* ----------------------------------------------------------
   ANIMACIONES DE ENTRADA (scroll-triggered)
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  .animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition:
      opacity var(--transition-base),
      transform var(--transition-base);
  }

  .animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Delay escalonado para grupos de cards */
  .animate-on-scroll:nth-child(2) { transition-delay: 80ms; }
  .animate-on-scroll:nth-child(3) { transition-delay: 160ms; }
  .animate-on-scroll:nth-child(4) { transition-delay: 240ms; }
}