/* Global resets and base — Grupo TANDEM */
/* Nota: las fonts y tokens.css se cargan vía wp_enqueue_style en functions.php.
   No usar @import aquí: serializa la carga y duplica peticiones. */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-normal);
  color: var(--color-body);
  background: var(--color-bg);
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  line-height: var(--lh-tight);
  margin: 0;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }

/* === CONTAINERS === */
.container {
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-brand);
  color: white;
}
.btn-primary:hover {
  background: var(--color-brand-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-brand);
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}
.btn-secondary:hover {
  border-color: var(--color-ink);
  background: var(--color-bg-alt);
}

.btn-ghost {
  background: transparent;
  color: var(--color-brand);
  padding: var(--space-2) 0;
}
.btn-ghost:hover { color: var(--color-brand-dark); }

.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-md); }

/* === HELPERS === */
.eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-brand);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.lead {
  font-size: var(--text-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-muted);
}

.section { padding-block: var(--space-24); }
.section-sm { padding-block: var(--space-16); }

/* === HEADER === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 249, 247, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-8);
}

.logo {
  display: inline-flex;
  align-items: center;
  height: 44px;
}
.logo img {
  height: 44px;
  width: auto;
  display: block;
}
.logo--footer-img {
  height: 56px;
  display: inline-flex;
  align-items: center;
}
.logo--footer-img img {
  height: 56px;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__menu {
  display: none;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
  margin: 0;
}
@media (min-width: 960px) {
  .nav__menu { display: flex; }
}

.nav__link {
  color: var(--color-body);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition-fast);
}
.nav__link:hover { color: var(--color-ink); }

/* === LANGUAGE SWITCHER (Polylang) === */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}
.lang-switcher li { margin: 0; }
.lang-switcher a {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.lang-switcher a:hover { color: var(--color-ink); }
.lang-switcher .current-lang a,
.lang-switcher .current-lang > a {
  color: var(--color-brand);
  background: var(--color-brand-50);
}

/* === FOOTER === */
.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--space-20) var(--space-8);
  font-size: var(--text-sm);
}

.site-footer h4 {
  color: white;
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

@media (max-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-block: var(--space-2); }
.site-footer a { color: rgba(255, 255, 255, 0.7); transition: color var(--transition-fast); }
.site-footer a:hover { color: var(--color-brand); }

.site-footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
}

/* === FONTS-PRELOAD HEURISTIC === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}