/* ============================================
   HEADER COMPONENT
   Advanced Header with Scroll Behavior & Mobile Menu
   ============================================ */

/* ============================================
   HEADER BASE STYLES
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

/* Header States */
.site-header.header-transparent {
  background-color: transparent;
}

.site-header.header-solid {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.site-header.header-hidden {
  transform: translateY(-100%);
}

.site-header.header-scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.site-header.header-scrolled .site-header__inner {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

/* Header Dark Variant */
.site-header.header-dark {
  background-color: rgba(26, 26, 26, 0.95);
  color: #f5f0eb;
}

.site-header.header-dark.header-transparent {
  background-color: transparent;
}

/* Header Inner Container */
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  transition: padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 1023px) {
  .site-header__inner {
    padding-top: 1rem;
    padding-bottom: 1rem;
  }
}

/* ============================================
   LOGO / BRANDING
   ============================================ */

.site-branding {
  position: relative;
  z-index: 1001;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-branding a {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-branding img {
  height: 40px;
  width: auto;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.header-scrolled .site-branding img {
  height: 32px;
}

.site-branding__text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.header-dark .site-branding__text {
  color: var(--color-secondary);
}

.site-branding a:hover .site-branding__text {
  color: var(--color-accent);
}

/* ============================================
   DESKTOP NAVIGATION
   ============================================ */

.main-navigation {
  display: none;
}

@media (min-width: 1024px) {
  .main-navigation {
    display: flex;
    align-items: center;
    gap: 3rem;
  }
}

.main-navigation ul {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation li {
  position: relative;
  margin: 0;
}

.main-navigation a {
  position: relative;
  display: inline-block;
  padding: 0.5rem 0;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.header-dark .main-navigation a {
  color: var(--color-secondary);
}

/* Animated Underline Effect */
.main-navigation a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt));
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-navigation a:hover::after,
.main-navigation a:focus-visible::after {
  width: 100%;
}

.main-navigation a:hover,
.main-navigation a:focus-visible {
  color: var(--color-accent);
}

/* Active Menu Item */
.main-navigation .current-menu-item > a,
.main-navigation .current_page_item > a {
  color: var(--color-accent);
}

.main-navigation .current-menu-item > a::after,
.main-navigation .current_page_item > a::after {
  width: 100%;
}

/* ============================================
   HEADER CTA BUTTON
   ============================================ */

.header-cta {
  display: none;
}

@media (min-width: 1024px) {
  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    color: white;
    background-color: var(--color-accent);
    border: 2px solid var(--color-accent);
    border-radius: 9999px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    white-space: nowrap;
  }

  .header-cta:hover,
  .header-cta:focus-visible {
    background-color: var(--color-accent-alt);
    border-color: var(--color-accent-alt);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(201, 166, 107, 0.3);
  }

  .header-cta:active {
    transform: translateY(0);
  }
}

/* ============================================
   MOBILE MENU TOGGLE (HAMBURGER)
   ============================================ */

.mobile-menu-toggle {
  position: relative;
  z-index: 1002;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.mobile-menu-toggle:hover {
  transform: scale(1.05);
}

.mobile-menu-toggle:active {
  transform: scale(0.95);
}

/* Hamburger Icon */
.hamburger {
  position: relative;
  width: 24px;
  height: 18px;
}

.hamburger__line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.header-dark .hamburger__line {
  background-color: var(--color-secondary);
}

.hamburger__line:nth-child(1) {
  top: 0;
}

.hamburger__line:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.hamburger__line:nth-child(3) {
  bottom: 0;
}

/* Animated X State */
.mobile-menu-toggle[aria-expanded="true"] .hamburger__line:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: translateY(-50%) translateX(-10px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger__line:nth-child(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* ============================================
   MOBILE MENU OVERLAY
   ============================================ */

.mobile-navigation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh; /* Dynamic viewport height for mobile browsers */
  background: linear-gradient(135deg,
    var(--color-primary) 0%,
    #2a2a2a 100%
  );
  z-index: 1000;
  padding: 5rem 2rem 2rem;
  overflow-y: auto;
  overscroll-behavior: contain;

  /* Hidden by default */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  /* Animation */
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (min-width: 1024px) {
  .mobile-navigation {
    display: none !important;
  }
}

/* Menu Open State */
.mobile-navigation.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Menu List */
.mobile-navigation ul {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.mobile-navigation li {
  margin: 0;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Stagger animation for menu items */
.mobile-navigation.is-open li:nth-child(1) { transition-delay: 0.05s; }
.mobile-navigation.is-open li:nth-child(2) { transition-delay: 0.1s; }
.mobile-navigation.is-open li:nth-child(3) { transition-delay: 0.15s; }
.mobile-navigation.is-open li:nth-child(4) { transition-delay: 0.2s; }
.mobile-navigation.is-open li:nth-child(5) { transition-delay: 0.25s; }
.mobile-navigation.is-open li:nth-child(6) { transition-delay: 0.3s; }
.mobile-navigation.is-open li:nth-child(7) { transition-delay: 0.35s; }
.mobile-navigation.is-open li:nth-child(8) { transition-delay: 0.4s; }

.mobile-navigation.is-open li {
  opacity: 1;
  transform: translateY(0);
}

/* Menu Links */
.mobile-navigation a {
  display: block;
  padding: 1.25rem 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-secondary);
  text-decoration: none;
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.mobile-navigation a::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 1rem;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt));
  transform: translateX(-50%);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-navigation a:hover::before,
.mobile-navigation a:focus-visible::before {
  width: 60%;
}

.mobile-navigation a:hover,
.mobile-navigation a:focus-visible {
  color: var(--color-accent);
  transform: translateX(10px);
}

/* Active Menu Item */
.mobile-navigation .current-menu-item > a,
.mobile-navigation .current_page_item > a {
  color: var(--color-accent);
}

.mobile-navigation .current-menu-item > a::before,
.mobile-navigation .current_page_item > a::before {
  width: 60%;
}

/* ============================================
   MOBILE MENU FOOTER
   ============================================ */

.mobile-navigation__footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(245, 240, 235, 0.2);
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.4s,
              transform 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.4s;
}

.mobile-navigation.is-open .mobile-navigation__footer {
  opacity: 1;
  transform: translateY(0);
}

/* Contact Info */
.mobile-navigation__contact {
  margin-bottom: 1.5rem;
}

.mobile-navigation__contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-navigation__contact-item:hover,
.mobile-navigation__contact-item:focus-visible {
  color: var(--color-accent);
}

.mobile-navigation__contact-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Social Links */
.mobile-navigation__social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.mobile-navigation__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-secondary);
  border: 2px solid rgba(245, 240, 235, 0.3);
  border-radius: 50%;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-navigation__social-link:hover,
.mobile-navigation__social-link:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 4px 12px rgba(201, 166, 107, 0.3);
}

.mobile-navigation__social-icon {
  width: 20px;
  height: 20px;
}

/* ============================================
   BODY SCROLL LOCK
   ============================================ */

body.mobile-menu-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
  height: 100%;
}

/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

/* Focus visible styles for keyboard navigation */
.site-header a:focus-visible,
.site-header button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* Skip navigation support */
.site-header .skip-link:focus {
  z-index: 2000;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

@media (min-width: 480px) {
  .mobile-navigation {
    padding: 6rem 3rem 3rem;
  }

  .mobile-navigation a {
    padding: 1.5rem 0;
  }
}

@media (min-width: 768px) {
  .mobile-navigation {
    padding: 7rem 4rem 4rem;
  }

  .mobile-navigation__footer {
    margin-top: 4rem;
  }

  .mobile-navigation__contact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
  }

  .mobile-navigation__contact-item {
    margin-bottom: 0;
  }
}

/* ============================================
   REDUCED MOTION SUPPORT
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .site-header__inner,
  .site-branding *,
  .main-navigation a,
  .main-navigation a::after,
  .mobile-menu-toggle,
  .hamburger__line,
  .mobile-navigation,
  .mobile-navigation li,
  .mobile-navigation a,
  .mobile-navigation__footer,
  .header-cta {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .mobile-navigation a:hover {
    transform: none;
  }

  .mobile-navigation__social-link:hover {
    transform: none;
  }
}

/* ============================================
   DARK MODE SUPPORT
   ============================================ */

@media (prefers-color-scheme: dark) {
  .site-header.header-solid {
    background-color: rgba(26, 26, 26, 0.95);
  }

  .site-header.header-scrolled {
    background-color: rgba(26, 26, 26, 0.95);
  }

  .main-navigation a {
    color: var(--color-secondary);
  }

  .hamburger__line {
    background-color: var(--color-secondary);
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .site-header {
    position: static;
    background-color: white;
    box-shadow: none;
  }

  .mobile-menu-toggle,
  .mobile-navigation,
  .header-cta {
    display: none;
  }

  .main-navigation {
    display: none;
  }
}