/* ============================================================
   VIM — Verificadores Internacionales Mexicanos S.A. de C.V.
   Réplica fiel del sitio actual (evaluacionesvim.com)
   Paleta institucional: #0075C1 sobre fondo blanco
   ============================================================ */

:root {
  --vim-blue: #0075C1;
  --vim-blue-dark: #005a95;
  --ink: #2b2b2b;
  --ink-soft: #555555;
  --line: #e6e6e6;
  --bg: #ffffff;
  --bg-soft: #f7f9fb;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  font-family: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
}

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

a { color: var(--vim-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--vim-blue);
  outline-offset: 2px;
}

/* ---------- Encabezado / navegación ---------- */
header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img { height: 52px; width: auto; }

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--vim-blue);
  letter-spacing: 0.02em;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 26px;
  align-items: center;
}

nav.main-nav a {
  color: var(--ink);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

nav.main-nav a:hover,
nav.main-nav a[aria-current="page"] {
  color: var(--vim-blue);
  border-bottom-color: var(--vim-blue);
  text-decoration: none;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 1.2rem;
  color: var(--vim-blue);
  cursor: pointer;
}

@media (max-width: 820px) {
  .menu-toggle { display: block; }
  nav.main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    display: none;
  }
  nav.main-nav.open { display: block; }
  nav.main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
  }
  nav.main-nav li { width: 100%; }
  nav.main-nav a {
    display: block;
    padding: 12px 24px;
    border-bottom: none;
  }
}

/* ---------- Secciones ---------- */
main { display: block; }

section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 20px;
}

section + section { border-top: 1px solid var(--line); }

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: 2rem; margin-bottom: 18px; }
h2 { font-size: 1.5rem; margin-bottom: 14px; }
h3 { font-size: 1.2rem; margin-bottom: 10px; }

.section-title {
  text-align: center;
  color: var(--vim-blue);
  margin-bottom: 28px;
}

p { margin-bottom: 14px; }

.accent { color: var(--vim-blue); font-weight: 700; }

/* ---------- Carrusel de clientes ---------- */
.clients {
  background: var(--bg);
  text-align: center;
}

.clients h1 {
  font-size: 1.6rem;
  margin-bottom: 26px;
}

.marquee {
  overflow: hidden;
  position: relative;
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 56px;
  width: max-content;
  animation: scroll 45s linear infinite;
}

.marquee:hover .marquee-track { animation-play-state: paused; }

.marquee-track img {
  height: 64px;
  width: auto;
  object-fit: contain;
}

@keyframes scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track { flex-wrap: wrap; justify-content: center; width: auto; }
}

/* ---------- Bienvenida ---------- */
.welcome { text-align: center; }
.welcome h2 { color: var(--ink); }
.welcome p { font-size: 1.1rem; color: var(--ink-soft); }

/* ---------- Tarjetas de servicios ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  margin-top: 10px;
}

.service-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 26px;
  background: var(--bg);
}

.service-card h4 {
  color: var(--vim-blue);
  font-size: 1.25rem;
  margin-bottom: 12px;
  text-align: center;
}

.service-card ul, .service-card ol {
  margin: 12px 0 12px 22px;
}

.service-card li { margin-bottom: 6px; }

.service-card li strong { font-weight: 700; }

.cred {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}

.cred strong { display: block; margin-bottom: 6px; }

/* ---------- Misión / Visión ---------- */
.mission-vision {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.mission-vision h4 {
  color: var(--vim-blue);
  font-size: 1.25rem;
  margin-bottom: 10px;
  text-align: center;
}

.mission-vision p { color: var(--ink-soft); text-align: center; }

/* ---------- Políticas (Mostrar más) ---------- */
.policies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.policy h4 {
  color: var(--vim-blue);
  font-size: 1.15rem;
  text-align: center;
  margin-bottom: 10px;
}

.policy .policy-extra { display: none; }
.policy.expanded .policy-extra { display: block; }

.show-more {
  background: none;
  border: none;
  color: var(--vim-blue);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  padding: 4px 0;
  font-family: inherit;
}
.show-more:hover { text-decoration: underline; }

.policy ol { margin: 10px 0 10px 22px; }

/* ---------- Descargas (páginas interiores) ---------- */
.download-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 22px;
}

.download-block h2 { color: var(--vim-blue); font-size: 1.25rem; }

.btn-download {
  display: inline-block;
  background: var(--vim-blue);
  color: #ffffff;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 6px;
  margin-top: 8px;
}

.btn-download:hover {
  background: var(--vim-blue-dark);
  text-decoration: none;
}

.file-label {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-top: 10px;
  margin-bottom: 2px;
}

/* ---------- Noticias (Extras) ---------- */
.news-item {
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
}

.news-item:last-child { border-bottom: none; }

.news-item h2 {
  color: var(--vim-blue);
  font-size: 1.15rem;
  margin-bottom: 8px;
}

/* ---------- AquaRating ---------- */
.aqua-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 40px;
  margin-bottom: 30px;
}

.aqua-logos img { max-height: 160px; width: auto; }

.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.offer-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
}

.offer-card h4 { color: var(--vim-blue); margin-bottom: 10px; }
.offer-card p { color: var(--ink-soft); margin-bottom: 0; }

/* ---------- Video ---------- */
.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  margin-top: 14px;
  border-radius: 10px;
  overflow: hidden;
}

.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Pie de página ---------- */
footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  margin-top: 20px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 28px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.footer-inner h4 { color: var(--vim-blue); margin-bottom: 8px; }
.footer-inner p { color: var(--ink-soft); font-size: 0.98rem; margin-bottom: 6px; }

.footer-bottom {
  text-align: center;
  font-size: 0.9rem;
  color: var(--ink-soft);
  padding: 14px 20px 26px;
  border-top: 1px solid var(--line);
}

.social-x {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}