/* ============================================================================
   LAYOUT v27 — Header, Footer, main, grids, hero
   ============================================================================ */

/* ============================================================ HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: background var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
[data-theme="dark"] .site-header { background: rgba(11, 15, 26, .82); }
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }

.site-header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding-inline: var(--space-5);
  max-width: var(--container-xl);
  margin: 0 auto;
}
@media (max-width: 768px) {
  .site-header-inner { height: var(--header-h-mobile); gap: var(--space-3); padding-inline: var(--space-4); }
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-md);
  text-decoration: none;
  flex-shrink: 0;
}
.site-logo svg { width: 32px; height: 32px; }
.site-logo-text { line-height: 1.1; }
@media (max-width: 640px) {
  .site-logo-text { display: none; }
}

.site-nav {
  display: flex;
  gap: var(--space-1);
  margin-left: var(--space-4);
}
@media (max-width: 900px) {
  .site-nav { display: none; }
}

.site-nav a {
  padding: 0.5rem 0.875rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-2);
  border-radius: var(--radius-md);
  transition: background var(--t-fast), color var(--t-fast);
}
.site-nav a:hover { background: var(--color-muted); color: var(--color-text); }
.site-nav a.is-active { color: var(--color-primary); font-weight: 600; }

.site-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.header-icon-btn {
  position: relative;
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-text-2);
  transition: background var(--t-fast), color var(--t-fast);
}
.header-icon-btn:hover { background: var(--color-muted); color: var(--color-text); }
.header-icon-btn svg { width: 20px; height: 20px; }
.header-icon-btn .badge-counter {
  position: absolute;
  top: 6px;
  right: 6px;
}

.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  color: var(--color-text);
  align-items: center; justify-content: center;
}
@media (max-width: 900px) {
  .menu-toggle { display: inline-flex; }
}
.menu-toggle svg { width: 22px; height: 22px; }

/* ============================================================ MAIN */
.site-main {
  min-height: 60vh;
  padding-bottom: var(--space-12);
}

/* ============================================================ FOOTER */
.site-footer {
  margin-top: var(--space-12);
  padding-top: var(--space-10);
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-divider);
  color: var(--color-text-2);
}
[data-theme="dark"] .site-footer { background: #0A0E18; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-7);
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5) var(--space-8);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand { max-width: 320px; }
.footer-brand p {
  font-size: var(--fs-sm);
  color: var(--color-text-3);
  margin-top: var(--space-3);
}

.footer-col-title {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--color-text);
  font-weight: 700;
  margin-bottom: var(--space-4);
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col a {
  font-size: var(--fs-sm);
  color: var(--color-text-3);
  transition: color var(--t-fast);
}
.footer-col a:hover { color: var(--color-primary); }

.footer-seals {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.footer-seal {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  color: var(--color-text-2);
}
.footer-seal svg { width: 16px; height: 16px; color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-5) 0;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding-inline: var(--space-5);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--fs-xs);
  color: var(--color-text-3);
}

/* ============================================================ HERO */
.hero {
  position: relative;
  padding-block: var(--space-12) var(--space-10);
  background: var(--grad-hero);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding-inline: var(--space-5);
}
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--space-7); text-align: center; }
}

.hero-content { max-width: 540px; }
.hero h1 {
  font-size: var(--fs-5xl);
  line-height: 1.05;
  letter-spacing: var(--ls-tight);
  margin-bottom: var(--space-5);
}
.hero-subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-2);
  line-height: var(--lh-base);
  margin-bottom: var(--space-7);
  max-width: 480px;
}
@media (max-width: 900px) {
  .hero-subtitle { margin-inline: auto; }
}
.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
@media (max-width: 900px) {
  .hero-cta-row { justify-content: center; }
}

.hero-visual {
  position: relative;
  aspect-ratio: 1;
  max-width: 460px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--grad-accent);
  opacity: .08;
  filter: blur(40px);
}
.hero-visual img,
.hero-visual svg {
  position: relative;
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
}

/* ============================================================ SECTION HEADINGS */
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-8);
}
.section-head h2 {
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-3);
}
.section-head p {
  color: var(--color-text-3);
  font-size: var(--fs-md);
  margin: 0;
}

/* ============================================================ FEATURE GRID (categorias home) */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: transform var(--t-base), box-shadow var(--t-base);
  text-decoration: none;
  color: var(--color-text);
  display: flex; flex-direction: column; align-items: center;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.feature-card-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
}
.feature-card-icon svg { width: 26px; height: 26px; }
.feature-card-title {
  f