/* CardioVida México: estilos compartidos, mobile-first. */
:root { color-scheme: light; --blue:#1a365d; --green:#25634b; --ink:#27384b; --muted:#566477; --line:#d9e2e9; --soft:#f3f6f8; --mint:#edf5ef; --white:#fff; }
* { box-sizing:border-box; }
html { scroll-padding-top:1.5rem; }
body { margin:0; color:var(--ink); background:var(--white); font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; font-size:1rem; line-height:1.75; overflow-wrap:anywhere; }
a { color:var(--green); text-underline-offset:.2em; }
a:hover { text-decoration-thickness:2px; }
a,button,input,textarea,summary { -webkit-tap-highlight-color:transparent; }
:focus-visible { outline:3px solid #a45c00; outline-offset:4px; }
.container { width:min(1160px,calc(100% - 2.5rem)); margin-inline:auto; }
.skip { position:absolute; left:1rem; top:-8rem; padding:.75rem 1rem; background:var(--blue); color:white; z-index:10; }
.skip:focus { top:1rem; }
.site-header { border-bottom:1px solid var(--line); background:white; }
.header-row { display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:1rem; padding-block:1.2rem; }
.brand { color:var(--blue); text-decoration:none; font-size:1.65rem; font-weight:750; line-height:1.2; letter-spacing:-.04em; }
.brand span { color:var(--green); }
.brand small { display:block; margin-top:.5rem; font-size:.59rem; font-weight:650; letter-spacing:.12em; }
.header-row nav { width:100%; }
.menu summary { cursor:pointer; color:var(--blue); padding:.6rem 0; font-weight:650; min-height:44px; }
.nav-links { display:flex; flex-direction:column; gap:.25rem; padding-block:.25rem; }
.desktop-nav { display:none; }
.nav-links a { color:var(--blue); text-decoration:none; padding:.55rem .75rem; border-radius:.3rem; }
.nav-links a:hover { background:var(--mint); }
h1,h2,h3 { color:var(--blue); line-height:1.2; }
h1 { font-size:clamp(2rem,4.3vw,3.65rem); letter-spacing:-.045em; margin:.75rem 0 1.25rem; text-wrap:balance; }
h2 { font-size:clamp(1.4rem,2.4vw,1.9rem); letter-spacing:-.025em; margin:2.3rem 0 1rem; }
h3 { font-size:1.2rem; }
p { margin:0 0 1.15rem; }
.eyebrow { color:var(--green); font-size:.72rem; font-weight:750; letter-spacing:.14em; margin:0; }
.breadcrumb { color:var(--muted); font-size:.8rem; padding-top:1.5rem; }
.hero { padding-block:2rem 2.6rem; border-bottom:1px solid var(--line); }
.hero h1 { max-width:970px; }
.lead { color:var(--muted); font-size:1.18rem; max-width:750px; }
.meta,.small { color:var(--muted); font-size:.85rem; }
.meta { margin-bottom:0; }
.article-layout { display:grid; gap:2rem; padding-block:2rem 3rem; }
.toc { background:var(--soft); padding:1.5rem; border-radius:.5rem; align-self:start; }
.toc ol { margin:1rem 0; padding-left:1.25rem; }
.toc li { padding:.3rem 0; }
.toc a { color:var(--blue); }
.toc p:last-child { font-size:.85rem; margin:0; color:var(--muted); }
.prose { max-width:780px; }
.prose section { scroll-margin-top:1.5rem; }
.prose h2 span { display:block; color:var(--green); font-size:.85rem; letter-spacing:.08em; margin-bottom:.55rem; }
.quote { margin:2rem 0; padding:1.5rem; border-left:4px solid var(--green); background:var(--mint); }
blockquote { margin:0; }
blockquote p { font-size:1.3rem; line-height:1.5; color:var(--blue); }
figcaption { font-size:.8rem; color:var(--muted); }
.notice { background:var(--soft); border:1px solid var(--line); border-radius:.4rem; padding:1.4rem; margin:2rem 0; }
.notice h2 { font-size:1.25rem; margin-top:0; }
.notice p:last-child { margin-bottom:0; }
.sources { border-top:1px solid var(--line); margin-top:2rem; font-size:.88rem; }
.sources h2 { font-size:1.25rem; }
.sources li { margin-bottom:.5rem; }
.about { border-top:1px solid var(--line); padding-block:2.5rem 3rem; }
.about p { max-width:780px; }
.about h2 { margin-top:.75rem; }
.button,button { display:inline-flex; align-items:center; justify-content:center; min-height:46px; border:1px solid var(--green); border-radius:.3rem; padding:.7rem 1.1rem; background:var(--green); color:white; font:inherit; font-weight:650; text-decoration:none; cursor:pointer; }
.button:hover,button:hover { background:#1c4e3b; }
button:disabled { opacity:.6; cursor:not-allowed; }
.secondary { background:white; color:var(--green); }
.secondary:hover { background:var(--mint); }
.legal { padding-block:2.5rem 4rem; }
.legal h1 { font-size:clamp(2rem,4vw,3rem); }
.contact-grid { display:grid; gap:2rem; margin-top:2rem; }
.contact-grid h2 { margin-top:0; }
.contact-card { padding:1.5rem; background:var(--soft); border:1px solid var(--line); border-radius:.5rem; align-self:start; }
address { font-style:normal; }
.contact-card address { margin-bottom:1.2rem; }
label { display:block; color:var(--blue); font-weight:650; margin:.9rem 0 .35rem; }
input,textarea { display:block; width:100%; border:1px solid #8494a2; border-radius:.25rem; background:white; padding:.8rem; font:inherit; color:var(--ink); }
textarea { resize:vertical; min-height:150px; }
.actions { display:flex; flex-wrap:wrap; gap:.75rem; }
form .small { margin-top:1rem; }
#status { color:var(--green); margin-top:1rem; }
pre { font:inherit; white-space:pre-wrap; overflow-wrap:anywhere; border:1px solid var(--line); padding:1rem; background:var(--soft); }
.site-footer { background:var(--blue); color:#e0e7f0; padding-top:2.5rem; font-size:.86rem; }
.footer-grid { display:grid; gap:1.8rem; }
.footer-brand { font-size:1.15rem; font-weight:700; text-decoration:none; }
.site-footer a { color:#fff; }
.site-footer nav { display:flex; flex-direction:column; gap:.4rem; }
.site-footer nav a { padding-block:.3rem; }
.site-footer small { font-size:.75rem; }
.footer-bottom { border-top:1px solid #526681; margin-top:2rem; padding-block:1.2rem; font-size:.75rem; }
[hidden] { display:none !important; }
@media (min-width:760px) {
  .header-row { flex-wrap:nowrap; padding-block:1.5rem; }
  .header-row nav { width:auto; }
  .menu { display:none; }
  .desktop-nav { display:flex; flex-direction:row; gap:.25rem; padding:0; }
  .article-layout { grid-template-columns:220px minmax(0,1fr); gap:3.5rem; padding-top:3rem; }
  .contact-grid { grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr); gap:3rem; }
  .footer-grid { grid-template-columns:1.1fr 1fr 1.2fr; gap:2rem; }
  .hero { padding-block:3rem; }
}
@media (prefers-reduced-motion:no-preference) { html { scroll-behavior:smooth; } }
@media print {
  .site-header,.site-footer,.toc,.skip,.actions { display:none; }
  .container { width:100%; }
  .article-layout { display:block; }
  .prose { max-width:none; }
  body { color:black; font-size:11pt; }
  h1 { font-size:24pt; }
  h2 { break-after:avoid; }
  .quote,.notice { break-inside:avoid; }
  a { color:inherit; }
}