:root {
  --color-primary: #0f5f7a;
  --color-primary-dark: #054355;
  --color-primary-deep: #043547;
  --color-accent: #08a890;
  --color-link: #a3124a;
  --color-text: #1e2a32;
  --color-text-muted: #5b6b75;
  --color-bg: #ffffff;
  --color-bg-soft: #f4f7f8;
  --color-border: #e3eaee;
  --color-white: #ffffff;

  --btn-green: #30c848;
  --btn-magenta: #c00858;
  --btn-purple: #a80898;
  --btn-teal: #08a890;
  --btn-orange: #e09028;

  --font-heading: 'Archivo', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;

  --text-sm: clamp(0.875rem, 1.4vw, 0.95rem);
  --text-base: clamp(1rem, 1.6vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 2vw, 1.35rem);
  --text-xl: clamp(1.35rem, 2.6vw, 1.75rem);
  --text-2xl: clamp(1.75rem, 3.5vw, 2.35rem);
  --text-hero: clamp(2rem, 5vw, 3rem);

  --space-xs: 0.5rem;
  --space-sm: clamp(0.75rem, 2vw, 1rem);
  --space-md: clamp(1rem, 2.5vw, 1.5rem);
  --space-lg: clamp(1.75rem, 4vw, 2.75rem);
  --space-xl: clamp(2.5rem, 6vw, 4.5rem);
  --space-2xl: clamp(3.5rem, 8vw, 6rem);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-soft: 0 8px 24px rgba(15, 95, 122, 0.08);
  --shadow-card: 0 10px 28px rgba(20, 40, 55, 0.1);
  --container-max: 1120px;
  --container-pad: 1.5rem;

  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 450ms;
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--site-header-h, 72px) + 12px);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

main {
  flex: 1 0 auto;
  width: 100%;
}

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

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover { color: var(--color-primary-dark); }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.25;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

p { margin: 0 0 var(--space-sm); }

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
  box-sizing: border-box;
}

/* Refuerzo: componentes con padding vertical no deben anular el aire lateral */
.container.site-header__top,
.container.site-nav__inner,
.container.home-layout,
.container.page-layout,
.container.site-footer__inner,
.container.join-cta__inner {
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  padding: 0.65rem 1.1rem;
  border: 0;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.btn:focus-visible,
.btn--hero-ghost:focus-visible,
.site-nav__link:focus-visible,
.social-links__item:focus-visible,
.nav-toggle:focus-visible,
.faq-item__trigger:focus-visible,
.filter-chip:focus-visible,
.cat-filter:focus-visible,
.pager__item:focus-visible,
.pager__nav:focus-visible {
  outline: 3px solid rgba(8, 168, 144, 0.55);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

@media (hover: hover) {
  .btn--primary:hover {
    transform: translateY(-1px);
  }
}

.btn--access {
  background: #d8eef5;
  color: var(--color-primary-dark);
  min-height: 38px;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
}

.btn--access:hover {
  background: #c5e5ef;
  color: var(--color-primary-dark);
}

.btn--leer {
  background: var(--color-primary);
  color: var(--color-white);
  min-height: 40px;
  padding: 0.45rem 0.9rem;
  font-size: 0.88rem;
}

.btn--leer:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.section {
  padding: var(--space-xl) 0;
}

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

.section__title {
  font-size: var(--text-2xl);
  text-transform: uppercase;
  letter-spacing: 0.015em;
}

.section__title span {
  color: var(--color-primary);
  font-weight: 700;
}

.section__lead {
  color: var(--color-text-muted);
  max-width: 42rem;
}

.error-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: min(50vh, 28rem);
}

.error-page__inner {
  text-align: center;
  max-width: 560px;
}

.error-page__inner .section__lead {
  margin-inline: auto;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  :root {
    --container-pad: 1.75rem;
  }

  .reveal {
    transform: none;
  }
}

@media (max-width: 480px) {
  :root {
    --container-pad: 1.85rem;
  }
}

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

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