/* =============================================
   ROSAS NAILS ART — Navigation Component
   ============================================= */

/* Sticky header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: background var(--dur-slow) var(--ease-smooth),
              box-shadow var(--dur-slow) var(--ease-smooth),
              backdrop-filter var(--dur-slow),
              opacity var(--dur-slow) var(--ease-smooth);
}

/* Kept hidden by js/hero-reveal.js until the hero photo finishes
   docking into its final size, so it doesn't float over the
   full-screen intro. */
.site-header.hero-hidden {
  opacity: 0;
  pointer-events: none;
}

.site-header.scrolled {
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border), var(--shadow-sm);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo__mark {
  width: 40px; height: 40px;
  background: var(--color-ink);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-script);
  font-size: 1.4rem;
  color: #fff;
  transition: transform var(--dur-base) var(--ease-spring);
}
.nav-logo:hover .nav-logo__mark {
  transform: scale(1.08) rotate(-4deg);
}
.nav-logo__mark-img {
  width: 24px;
  height: auto;
  display: block;
}

.nav-logo__img {
  height: 44px;
  width: auto;
  display: block;
  transition: transform var(--dur-base) var(--ease-spring);
}
.nav-logo:hover .nav-logo__img {
  transform: scale(1.04);
}

.nav-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.nav-logo__name {
  font-family: var(--font-alt);
  font-weight: var(--weight-bold);
  font-size: var(--text-sm);
  color: var(--color-ink);
  letter-spacing: -.01em;
}
.nav-logo__tagline {
  font-size: .7rem;
  font-weight: var(--weight-medium);
  color: var(--color-gold);
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  justify-content: center;
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-ink-mid);
  border-radius: var(--radius-full);
  transition: color var(--dur-fast), background var(--dur-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 24px);
  height: 1.5px;
  background: var(--grad-gold);
  border-radius: var(--radius-full);
  transition: transform var(--dur-base) var(--ease-spring);
}

.nav-link:hover {
  color: var(--color-ink);
  background: rgba(22,19,22,.04);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
  color: var(--color-ink);
  font-weight: var(--weight-semibold);
}

/* CTA */
.nav-cta {
  flex-shrink: 0;
  padding: 10px 22px;
  font-size: .83rem;
}

/* Mobile menu toggle */
.lang-toggle {
  flex-shrink: 0;
  height: 36px;
  padding: 0 var(--space-3);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: .04em;
  color: var(--color-ink-mid);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.lang-toggle:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
  transition: background var(--dur-fast);
}
.nav-burger:hover { background: var(--color-border); }

.nav-burger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--color-ink);
  border-radius: var(--radius-full);
  transition: transform var(--dur-base) var(--ease-smooth),
              opacity var(--dur-base);
}

.nav-burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile drawer */
.nav-drawer {
  position: fixed;
  inset: var(--nav-h) 0 0;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 999;
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease-smooth);
}

.nav-drawer.open { transform: translateX(0); }

.nav-drawer .nav-link {
  font-size: var(--text-lg);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
}

.nav-drawer .btn {
  margin-top: var(--space-4);
  justify-content: center;
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta { display: none; }
  .nav-burger { display: flex; }
}

/* =============================================
   FOOTER
   ============================================= */

.site-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,.7);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: var(--space-8);
}

/* Index.html's footer only has Brand + Contacto now that the
   Servicios/Navegación columns were removed. */
.footer-grid--compact { grid-template-columns: 1.4fr 1fr; }

.footer-brand .nav-logo { margin-bottom: var(--space-6); }
.footer-brand .nav-logo__name,
.footer-brand .nav-logo__mark { color: #fff; }

.footer-brand p {
  font-size: var(--text-sm);
  line-height: 1.65;
  max-width: 280px;
  margin-bottom: var(--space-6);
}

.footer-socials {
  display: flex;
  gap: var(--space-3);
}

.footer-social-link {
  width: 38px; height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
}
.footer-social-link:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: #fff;
}

.footer-col h5 {
  font-family: var(--font-alt);
  font-weight: var(--weight-bold);
  font-size: var(--text-sm);
  color: #fff;
  margin-bottom: var(--space-5);
  letter-spacing: -.01em;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col ul li a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.6);
  transition: color var(--dur-fast);
}

.footer-col ul li a:hover { color: var(--color-gold-lt); }

.footer-contact-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-sm);
  color: rgba(255,255,255,.6);
  margin-bottom: var(--space-3);
}

.footer-contact-item .icon { margin-top: 2px; flex-shrink: 0; }
.footer-social-link svg { width: 16px; height: 16px; stroke-width: 1.8; }
.footer-contact-item .icon svg { width: 15px; height: 15px; stroke-width: 1.8; }

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

.footer-bottom p {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.35);
}

.footer-bottom p a {
  color: rgba(255,255,255,.6);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--dur-fast);
}
.footer-bottom p a:hover { color: var(--color-gold-lt); }

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .footer-grid--compact { grid-template-columns: 1fr; }
}