/* ==========================================================================
   SURESTIA — Layout: header, navegación, hero, footer, botón flotante
   ========================================================================== */

/* ---------------------------- Header ---------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(11, 29, 51, 0.97);
  backdrop-filter: saturate(140%) blur(6px);
  box-shadow: 0 2px 16px rgba(0,0,0,0.15);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.brand img { height: 34px; width: auto; }

.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.main-nav__list a {
  color: var(--color-text-on-dark);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--fs-sm);
  position: relative;
  padding: var(--space-2) 0;
}
.main-nav__list a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--color-gold-500);
  transition: width var(--transition-base);
}
.main-nav__list a:hover,
.main-nav__list a[aria-current="page"] {
  color: var(--color-white);
}
.main-nav__list a:hover::after,
.main-nav__list a[aria-current="page"]::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: var(--space-4); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  width: 20px; height: 2px;
  background: var(--color-white);
  margin-inline: auto;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--color-navy-950);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    padding: var(--space-7) var(--space-5);
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  .main-nav__list a {
    display: block;
    width: 100%;
    padding: var(--space-4) var(--space-2);
    font-size: var(--fs-md);
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .header-actions .btn--whatsapp-header { display: none; }
  .main-nav__cta { margin-top: var(--space-6); display: block; }
}

/* ---------------------------- Hero ---------------------------- */
.hero {
  position: relative;
  background: linear-gradient(150deg, var(--color-navy-950) 0%, var(--color-navy-900) 48%, var(--color-navy-700) 100%);
  color: var(--color-white);
  overflow: hidden;
  padding-block: var(--space-9);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(115deg, transparent 55%, rgba(197,160,89,0.10) 55%, rgba(197,160,89,0.10) 57%, transparent 57%),
    linear-gradient(115deg, transparent 62%, rgba(197,160,89,0.08) 62%, rgba(197,160,89,0.08) 63.4%, transparent 63.4%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}
.hero--simple .container { grid-template-columns: 1fr; text-align: left; }
.hero h1 { color: var(--color-white); margin-bottom: var(--space-5); }
.hero .lead {
  font-size: var(--fs-md);
  color: var(--color-text-on-dark-muted);
  max-width: 46ch;
  margin-bottom: var(--space-6);
}
.hero-actions { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.hero-art { position: relative; }

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.12);
}
.stat-strip .stat b {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  color: var(--color-gold-400);
}
.stat-strip .stat span {
  font-size: var(--fs-xs);
  color: var(--color-text-on-dark-muted);
}

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero .lead { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .stat-strip { grid-template-columns: repeat(3, 1fr); }
  .hero-art { max-width: 380px; margin-inline: auto; }
}

/* ---------------------------- Breadcrumb / page header ---------------------------- */
.page-header {
  background: var(--color-navy-900);
  color: var(--color-white);
  padding-block: var(--space-7);
}
.page-header h1 { color: var(--color-white); margin-bottom: var(--space-2); }
.breadcrumb {
  display: flex;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--space-4);
}
.breadcrumb a { color: var(--color-text-on-dark-muted); }
.breadcrumb a:hover { color: var(--color-gold-400); }
.page-header .lead { color: var(--color-text-on-dark-muted); max-width: 65ch; }

/* ---------------------------- CTA banda ---------------------------- */
.cta-band {
  background: linear-gradient(120deg, var(--color-gold-600), var(--color-gold-500));
  color: var(--color-navy-950);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.cta-band h2, .cta-band p { color: var(--color-navy-950); }
.cta-band p { margin-bottom: 0; }

/* ---------------------------- Footer ---------------------------- */
.site-footer {
  background: var(--color-navy-950);
  color: var(--color-text-on-dark-muted);
  padding-block: var(--space-8) var(--space-6);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-7);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand img { height: 30px; margin-bottom: var(--space-4); }
.footer-brand p { max-width: 34ch; font-size: var(--fs-sm); }
.footer-col h4 { color: var(--color-white); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--space-5); }
.footer-col ul li { margin-bottom: var(--space-3); }
.footer-col a { color: var(--color-text-on-dark-muted); font-size: var(--fs-sm); }
.footer-col a:hover { color: var(--color-gold-400); }
.footer-contact li { display: flex; align-items: flex-start; gap: var(--space-3); }
.footer-contact svg { width: 18px; height: 18px; color: var(--color-gold-400); flex-shrink: 0; margin-top: 3px; }

.social-row { display: flex; gap: var(--space-3); margin-top: var(--space-5); }
.social-row a {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-full);
  color: var(--color-white);
}
.social-row a:hover { background: var(--color-gold-500); border-color: var(--color-gold-500); color: var(--color-navy-950); }
.social-row svg { width: 17px; height: 17px; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-5);
  font-size: var(--fs-xs);
}
.footer-legal-links { display: flex; gap: var(--space-5); }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------------------------- WhatsApp flotante ---------------------------- */
.whatsapp-float {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: 950;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 28px rgba(0,0,0,0.28);
  transition: transform var(--transition-fast);
  animation: pulse-wa 2.6s ease-in-out infinite;
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 30px; height: 30px; color: #fff; }

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 10px 28px rgba(0,0,0,0.28), 0 0 0 0 rgba(37,211,102,0.45); }
  50% { box-shadow: 0 10px 28px rgba(0,0,0,0.28), 0 0 0 10px rgba(37,211,102,0); }
}

@media (max-width: 560px) {
  .whatsapp-float { width: 52px; height: 52px; right: var(--space-4); bottom: var(--space-4); }
  .whatsapp-float svg { width: 26px; height: 26px; }
}