/**
 * Panova — Unified Global Site Header & Navigation
 * Frosted cream glass canvas, 72px desktop height, 1200px max-width,
 * authentic Panova emblem lockup, clean sans body nav links
 * with animated wheat gold underline indicators, and smooth mobile drawer.
 */

:root {
  --top-bar-height: 72px;
  --espresso: #200C04;
  --cream: #FAF6EF;
  --warm-ivory: #EFE4D3;
  --gold: #B8975A;
  --gold-dark: #785926;
  --gold-hover: #785926;
  --burnt-orange: #B8975A; /* Token alias redirect */
}

@media (max-width: 768px) {
  :root {
    --top-bar-height: 60px;
  }
}

/* Base Header */
#site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--top-bar-height);
  background: rgba(250, 246, 239, 0.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(32, 12, 4, 0.08);
  box-shadow: 0 4px 20px rgba(32, 12, 4, 0.03);
  z-index: 50;
  transition: background 0.3s ease, box-shadow 0.3s ease, border-bottom-color 0.3s ease;
}

#site-header.scrolled-header {
  background: rgba(250, 246, 239, 0.96);
  box-shadow: 0 8px 28px rgba(32, 12, 4, 0.06);
  border-bottom-color: rgba(32, 12, 4, 0.12);
}

.top-bar-inner {
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 3.5vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo Link */
.site-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo-lockup {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
}

.site-logo-mark {
  height: 38px;
  width: auto;
  object-fit: contain;
  display: none;
}

@media (max-width: 768px) {
  .site-logo-lockup {
    display: none;
  }
  .site-logo-mark {
    display: block;
  }
}

/* Desktop Navigation Links */
.top-bar-nav {
  display: none;
  align-items: center;
  gap: clamp(1.5rem, 2.5vw, 2.5rem);
}

@media (min-width: 1024px) {
  .top-bar-nav {
    display: flex;
  }
}

.nav-link-item {
  color: var(--espresso);
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  position: relative;
  padding: 6px 0;
  transition: color 0.25s ease;
}

.nav-link-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--gold);
  border-radius: 1px;
  transition: width 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (hover: hover) {
  .nav-link-item:hover {
    color: var(--gold-dark);
  }
  .nav-link-item:hover::after {
    width: 100%;
  }
}

.nav-link-item.active-nav-link {
  color: var(--espresso);
}

.nav-link-item.active-nav-link::after {
  width: 100%;
  background-color: var(--gold);
}

/* Header Right CTA Container & WhatsApp Button */
.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.top-bar-wa-btn,
.story-header-cta,
#site-header a[href*="wa.me"] {
  display: none;
  align-items: center;
  gap: 0.45rem;
  height: 40px;
  padding: 0 1.25rem;
  border-radius: 9999px;
  background-color: var(--terracotta, #A85438);
  color: var(--cream, #FAF6EF) !important;
  text-decoration: none !important;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 10px rgba(168, 84, 56, 0.32);
  white-space: nowrap;
}

@media (min-width: 768px) {
  .top-bar-wa-btn,
  .story-header-cta,
  #site-header a[href*="wa.me"] {
    display: inline-flex;
  }
}

.top-bar-wa-btn:hover,
.story-header-cta:hover,
#site-header a[href*="wa.me"]:hover {
  background-color: var(--terracotta-hover, #8F442C);
  color: #FFFFFF !important;
  box-shadow: 0 6px 18px rgba(168, 84, 56, 0.45);
  transform: translateY(-1px);
}

.top-bar-wa-btn .material-symbols-outlined,
.story-header-cta .material-symbols-outlined,
#site-header a[href*="wa.me"] .material-symbols-outlined {
  font-size: 15px;
  line-height: 1;
}

/* Mobile Hamburger Button */
.mobile-hamburger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(32, 12, 4, 0.15);
  border-radius: 50%;
  color: var(--espresso);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.mobile-hamburger-btn:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: scale(1.04);
}

@media (min-width: 1024px) {
  .mobile-hamburger-btn {
    display: none;
  }
}

/* Mobile Fullscreen Overlay Menu */
#mobile-fullscreen-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100dvh;
  background-color: var(--cream);
  z-index: 100;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem 1.75rem 2.5rem;
  transform: translateY(-100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}

#mobile-fullscreen-menu.menu-open {
  transform: translateY(0);
}

.mobile-menu-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
}

.mobile-menu-link {
  font-family: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  font-size: clamp(2rem, 8vw, 2.5rem);
  color: var(--espresso);
  text-decoration: none;
  line-height: 1.1;
  transition: color 0.2s ease;
}

.mobile-menu-link:hover,
.mobile-menu-link.active-mobile-link {
  color: var(--gold-dark);
}

/* ==========================================================================
   Story Page: Seamless Transparent Overlay Header
   Matches Main Page Panova Brand Palette (Warm Espresso, Cream & Wheat Gold)
   ========================================================================== */
#site-header.story-transparent-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid rgba(250, 246, 239, 0.06);
  box-shadow: none;
  z-index: 100;
  transition: background 0.4s ease, backdrop-filter 0.4s ease, border-bottom-color 0.4s ease, box-shadow 0.4s ease;
}

#site-header.story-transparent-header .site-logo-lockup {
  filter: brightness(0) invert(0.96) sepia(0.2) saturate(1.2);
  opacity: 0.98;
  transition: filter 0.3s ease, opacity 0.3s ease;
}

#site-header.story-transparent-header .site-logo-mark {
  filter: brightness(0) invert(0.96) sepia(0.2) saturate(1.2);
  opacity: 0.98;
}

#site-header.story-transparent-header .nav-link-item {
  color: rgba(250, 246, 239, 0.9);
  transition: color 0.25s ease;
}

#site-header.story-transparent-header .nav-link-item:hover {
  color: var(--gold);
}

#site-header.story-transparent-header .nav-link-item.active-nav-link {
  color: var(--gold);
}

#site-header.story-transparent-header .nav-link-item.active-nav-link::after {
  background-color: var(--gold);
}

/* Header WhatsApp CTA: Matches main page deep espresso button with gold border */
#site-header.story-transparent-header .story-header-cta {
  background: #200C04;
  color: #FAF6EF;
  border: 1px solid rgba(184, 151, 90, 0.45);
  box-shadow: 0 4px 14px rgba(32, 12, 4, 0.3);
  transition: all 0.3s ease;
}

#site-header.story-transparent-header .story-header-cta:hover {
  background: var(--gold);
  color: var(--espresso);
  border-color: var(--gold);
  box-shadow: 0 6px 20px rgba(184, 151, 90, 0.4);
}

#site-header.story-transparent-header .mobile-hamburger-btn {
  background: rgba(250, 246, 239, 0.12);
  border-color: rgba(250, 246, 239, 0.25);
  color: #FAF6EF;
}

#site-header.story-transparent-header .mobile-hamburger-btn:hover {
  background: rgba(250, 246, 239, 0.22);
  transform: scale(1.04);
}

/* Scrolled state: matches main page's cream frosted glass with authentic brown logo */
#site-header.story-transparent-header.scrolled-header {
  background: rgba(250, 246, 239, 0.94);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(32, 12, 4, 0.08);
  box-shadow: 0 4px 20px rgba(32, 12, 4, 0.04);
}

#site-header.story-transparent-header.scrolled-header .site-logo-lockup,
#site-header.story-transparent-header.scrolled-header .site-logo-mark {
  filter: none;
}

#site-header.story-transparent-header.scrolled-header .nav-link-item {
  color: var(--espresso);
}

#site-header.story-transparent-header.scrolled-header .nav-link-item:hover,
#site-header.story-transparent-header.scrolled-header .nav-link-item.active-nav-link {
  color: var(--gold-dark);
}

#site-header.story-transparent-header.scrolled-header .nav-link-item.active-nav-link::after {
  background-color: var(--gold);
}

#site-header.story-transparent-header.scrolled-header .story-header-cta {
  background: var(--terracotta, #A85438);
  color: #FAF6EF;
  border-color: transparent;
}

#site-header.story-transparent-header.scrolled-header .story-header-cta:hover {
  background: var(--terracotta-hover, #8F442C);
  color: #FFFFFF;
}

#site-header.story-transparent-header.scrolled-header .mobile-hamburger-btn {
  background: rgba(32, 12, 4, 0.06);
  border-color: rgba(32, 12, 4, 0.12);
  color: var(--espresso);
}