/* Ruleta Criterio — base reset, typography, landmark layout */

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

html {
  scroll-behavior: smooth;
}

/* Fixed header covers ~76px: offset in-page anchor targets so they land below it. */
section[id], tr[id] {
  scroll-margin-top: 90px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--font-base);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-base);
  font-weight: 800;
  line-height: var(--lh-tight);
  color: var(--c-navy);
  margin: 0 0 var(--sp-3);
  letter-spacing: -0.01em;
}
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p {
  margin: 0 0 var(--sp-4);
  max-width: 70ch;
}
p.lead {
  font-size: var(--fs-md);
  color: var(--c-ink-muted);
}

ul, ol { padding-left: 1.25em; }
li { margin-bottom: var(--sp-2); }

a {
  color: var(--c-accent);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 2px;

  &:hover { color: var(--c-accent-dark); }
}

.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;
}

.skip-link {
  position: absolute;
  left: var(--sp-3);
  top: -48px;
  background: var(--c-navy);
  color: #fff;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-sm);
  z-index: 200;
  text-decoration: none;

  &:focus { top: var(--sp-3); }
}

/* ---------- Container / grid helpers ---------- */

.wrap {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}

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

section { padding-block: var(--sp-8); }
section.tight { padding-block: var(--sp-6); }

.kicker {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent-dark);
  margin-bottom: var(--sp-2);
}

.section-head {
  max-width: 62ch;
  margin-bottom: var(--sp-6);

  & h2 { margin-bottom: var(--sp-2); }
  & p { color: var(--c-ink-muted); margin-bottom: 0; }
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

hr.rule {
  border: none;
  border-top: var(--border-hairline);
  margin: 0;
}

/* ---------- Age notice band ---------- */

.age-notice {
  background: var(--c-navy);
  color: #E7ECF7;
  font-size: var(--fs-xs);

  & .wrap {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    flex-wrap: wrap;
    padding-block: var(--sp-2);
  }

  & strong { color: #fff; }
  & a { color: #BFD3FF; text-decoration-color: rgba(191,211,255,0.5); }
  & a:hover { color: #fff; }
}

/* ---------- Header / nav ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;

  & .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-5);
    padding-block: var(--sp-4);
  }
}

.site-header.is-solid {
  background: rgba(244, 246, 249, 0.94);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: var(--border-hairline);

  & .brand { color: var(--c-navy); }
  & .main-nav a { color: var(--c-ink); }
  & .main-nav a:hover, & .main-nav a[aria-current="page"] { color: var(--c-accent-dark); }
  & .nav-toggle { border-color: var(--c-border); color: var(--c-navy); }
}

/* Variant used on pages whose hero sits on a dark (navy) background:
   header text starts light, then flips to the standard dark scheme once solid. */
.site-header--on-dark {
  & .brand { color: #fff; }
  & .main-nav a { color: #E7ECF7; }
  & .main-nav a:hover, & .main-nav a[aria-current="page"] { color: #fff; border-bottom-color: var(--c-accent); }
  & .nav-toggle { border-color: rgba(255,255,255,0.4); color: #fff; background: transparent; }
}
.site-header--on-dark.is-solid {
  & .brand { color: var(--c-navy); }
  & .main-nav a { color: var(--c-ink); }
  & .main-nav a:hover, & .main-nav a[aria-current="page"] { color: var(--c-accent-dark); }
  & .nav-toggle { border-color: var(--c-border); color: var(--c-navy); background: var(--c-surface); }
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  text-decoration: none;
  color: var(--c-navy);
  font-weight: 800;
  font-size: var(--fs-md);
  letter-spacing: -0.01em;

  & svg { width: 34px; height: 34px; flex-shrink: 0; }
  &:hover { color: var(--c-navy); }
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-5);

  & ul {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    list-style: none;
    margin: 0;
    padding: 0;
  }

  & a {
    color: var(--c-ink);
    text-decoration: none;
    font-size: var(--fs-sm);
    font-weight: 600;
    padding: var(--sp-1) 0;
    border-bottom: 2px solid transparent;
  }
  & a:hover, & a[aria-current="page"] {
    color: var(--c-accent-dark);
    border-bottom-color: var(--c-accent);
  }
}

.nav-toggle {
  display: none;
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(320px, 82vw);
    background: var(--c-surface);
    flex-direction: column;
    align-items: stretch;
    padding: var(--sp-8) var(--sp-5) var(--sp-5);
    box-shadow: -12px 0 30px rgba(15,27,51,0.12);
    transform: translateX(100%);
    transition: none;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: var(--sp-4); }
  .main-nav .btn { width: 100%; justify-content: center; }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: var(--border-hairline);
    border-radius: var(--radius-sm);
    background: var(--c-surface);
    cursor: pointer;
  }
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--c-navy);
  color: #C9D2E6;
  margin-top: var(--sp-9);

  & a { color: #C9D2E6; text-decoration-color: rgba(201,210,230,0.4); }
  & a:hover { color: #fff; }

  & h4 {
    color: #fff;
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: var(--sp-3);
  }

  & ul { list-style: none; padding: 0; margin: 0; }
  & li { margin-bottom: var(--sp-2); font-size: var(--fs-sm); }
}

.footer-top {
  padding-block: var(--sp-8) var(--sp-6);

  & .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: var(--sp-6);
  }
}

.footer-brand {
  & .brand { color: #fff; margin-bottom: var(--sp-3); }
  & p { color: #A9B4CC; font-size: var(--fs-sm); max-width: 42ch; }
}

.footer-safety {
  border-top: 1px solid rgba(255,255,255,0.12);
  border-bottom: 1px solid rgba(255,255,255,0.12);

  & .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-5);
    flex-wrap: wrap;
    padding-block: var(--sp-4);
  }

  & .safety-links {
    display: flex;
    gap: var(--sp-5);
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
  }

  & p { margin: 0; font-size: var(--fs-xs); color: #A9B4CC; }
}

.footer-bottom {
  padding-block: var(--sp-5);

  & .wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--sp-4);
    flex-wrap: wrap;
  }

  & p { margin: 0; font-size: var(--fs-xs); color: #8894AF; }

  & ul {
    display: flex;
    gap: var(--sp-4);
    flex-wrap: wrap;
    font-size: var(--fs-xs);
  }
}

@media (max-width: 860px) {
  .footer-top .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-top .footer-grid { grid-template-columns: 1fr; }
  .footer-safety .wrap { flex-direction: column; align-items: flex-start; }
}