/* ============================================================
   Site Header & Navigation — Core
   Fixed header, navbar, brand, nav-links, logo, toggler,
   header-specific button variants (ghost-light, app-download,
   outline-light, anunciar).
   Responsive breakpoints → _header-responsive.css
   ============================================================ */

.site-header {
  background-color: var(--gf-color-primary);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.site-navbar {
  background-color: var(--gf-color-primary);
  /* Removed heavy shadow for flatter header */
  box-shadow: none;
  padding-block: 1rem;
  position: relative;
}

/* Add top padding to body to compensate for fixed header */
body {
  padding-top: 0; /* Will be set dynamically by JavaScript */
}

body.has-fixed-header {
  padding-top: var(--header-height, 88px);
}

.site-navbar .navbar-brand-text {
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  color: #ffffff;
}

.site-navbar .navbar-logo {
  border-radius: 0; /* raw flat logo */
  box-shadow: none;
}

.site-navbar .navbar-brand:hover .navbar-brand-text,
.site-navbar .navbar-brand:focus .navbar-brand-text {
  color: #ffffff;
}

.site-navbar .nav-link {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 600;
  margin-right: 1.5rem;
  padding: 0.25rem 0;
  position: relative;
  transition: color 0.2s ease;
}

.site-navbar .nav-link:hover,
.site-navbar .nav-link:focus {
  color: #ffffff;
  outline: none;
}

.site-navbar .nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.45rem;
  width: 100%;
  height: 3px;
  border-radius: 999px;
  background: #ffffff;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
  opacity: 0;
}

.site-navbar .nav-link:hover::after,
.site-navbar .nav-link:focus::after,
.site-navbar .nav-link.active::after {
  transform: scaleX(1);
  opacity: 1;
}

/* Unified logo sizing */
.site-logo {
  height: 48px;
  width: auto;
  display: inline-block;
}

.site-navbar .btn {
  border-radius: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.6rem 1.5rem;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    box-shadow 0.2s ease;
  box-shadow: 0 6px 16px rgba(8, 29, 54, 0.08);
}

.btn-ghost-light {
  border: 1.5px solid rgba(255, 255, 255, 0.32);
  background-color: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  padding: 0.6rem 1.5rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.btn-ghost-light:hover,
.btn-ghost-light:focus {
  background-color: rgba(255, 255, 255, 0.96);
  color: var(--gf-color-primary);
  border-color: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 24px rgba(8, 29, 54, 0.16);
}

/* App Download Button - Orange CTA */
.btn-app-download {
  background-color: #ED6614;
  border: 1.5px solid #ED6614;
  color: #ffffff;
  padding: 0.5rem 1.2rem;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 2px;
  box-shadow: 0 4px 12px rgba(237, 102, 20, 0.25);
  white-space: nowrap;
}

.site-navbar .btn-app-download {
  border-radius: 2px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(237, 102, 20, 0.3);
}

.btn-app-download:hover,
.btn-app-download:focus {
  background-color: #D85A10;
  border-color: #D85A10;
  color: #ffffff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.25), 0 2px 4px rgba(237, 102, 20, 0.4);
}

.btn-app-download:active {
  background-color: #C44F0C;
  border-color: #C44F0C;
  color: #ffffff;
}

/* App download button within navbar */
.site-navbar .navbar-nav .btn-app-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.site-navbar .btn-outline-light {
  border-width: 1.5px;
  border-color: rgba(255, 255, 255, 0.65);
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.04);
}

.site-navbar .btn-outline-light:hover,
.site-navbar .btn-outline-light:focus {
  color: var(--gf-color-primary) !important;
  background-color: rgba(255, 255, 255, 0.96);
  border-color: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 24px rgba(8, 29, 54, 0.16);
}

/* Ensure all header action buttons share same min-height for visual alignment */
.site-navbar .navbar-actions .btn {
  min-height: 2.65rem; /* Slightly above 0.55rem*2 + line-height for consistency */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.navbar-actions {
  width: 100%;
}

.header-unit-selector-inline {
  width: 100%;
}

.header-unit-selector-floating {
  width: auto;
}

.header-unit-toggle {
  border-radius: 0.85rem;
  padding-inline: 1.45rem;
}

.site-navbar .navbar-toggler {
  border: none;
  box-shadow: none !important;
}

.site-navbar .navbar-toggler:focus {
  box-shadow: none;
}

.site-navbar .navbar-toggler-icon {
  filter: brightness(2.2);
}

.site-header .nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  font-weight: 500;
  padding: 0.5rem 0.25rem;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-header .nav-link:hover,
.site-header .nav-link:focus,
.site-header .nav-link.active {
  color: #ffffff;
  border-bottom-color: rgba(255, 255, 255, 0.4);
}

.site-header .anunciar-btn {
  background: linear-gradient(180deg, #ffa63d 0%, #ff8c00 100%);
  box-shadow: 0 12px 24px rgba(89, 34, 0, 0.3);
}

.site-header .anunciar-btn:hover {
  filter: brightness(1.1);
}

.site-header .anunciar-btn:active {
  filter: brightness(0.95);
}