/* ==========================================================================
   HEADER, OFF‑CANVAS, MEGA MENU, BREADCRUMBS
   ========================================================================== */

/* Sticky header bar – uses the primary surface token */
.site-header {
  background-color: var(--color-surface-primary);
  border-bottom: 1px solid var(--color-border-secondary);
  position: -webkit-sticky;
  position: sticky !important;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  width: 100%;
  padding: 15px 0 !important;
  min-height: 75px !important;
}

.header-wrapper {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  flex-wrap: nowrap !important;
  gap: 15px !important;
  width: 100%;
  height: 100%;
}

/* ---------- Branding ---------- */
.site-branding a {
  text-decoration: none;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.5px;
}
.logo-dato { color: var(--color-text-primary); }
.logo-chai { color: var(--color-accent); }
.split-brand-logo a { text-decoration: none; }
.split-brand-logo .brand-part-1 { color: var(--color-text-primary); }
.split-brand-logo .brand-part-2 { color: var(--color-accent); }

/* ---------- Hamburger ---------- */
button.mobile-menu-toggle {
  color: var(--color-text-primary) !important;
  background: transparent !important;
  border: none;
}
button.mobile-menu-toggle svg {
  fill: none;
  stroke: currentColor;
}

/* ---------- Desktop Navigation (basic) ---------- */
@media (min-width: 1025px) {
  .mobile-menu-toggle,
  .mobile-only-search {
    display: none !important;
  }

  .desktop-navigation .primary-menu-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 25px;
    align-items: center;
  }
  .desktop-navigation a {
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 15px;
    transition: color var(--transition-fast);
  }
  .desktop-navigation a:hover { color: var(--color-accent); }
  .desktop-navigation li { position: relative; }

  .desktop-navigation .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-surface-primary);
    border: 1px solid var(--color-border-secondary);
    box-shadow: var(--shadow-sm);
    min-width: 250px;
    padding: 10px 0;
    border-radius: var(--radius-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth),
                transform var(--transition-smooth);
    z-index: 99;
    margin: 0;
    list-style: none;
  }
  .desktop-navigation li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .desktop-navigation .sub-menu a {
    display: block;
    padding: 10px 20px;
    font-weight: 500;
    font-size: 14px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
  }
  .desktop-navigation .sub-menu a:hover {
    background-color: var(--color-surface-tertiary);
    color: var(--color-accent);
  }
}

/* ---------- Search ---------- */
.search-form {
  display: flex !important;
  align-items: center !important;
  background: var(--color-surface-tertiary) !important;
  border-radius: 20px !important;
  padding: 5px 15px !important;
  border: 1px solid transparent !important;
  transition: border-color 0.3s ease, box-shadow 0.3s ease !important;
  width: 100%;
  box-sizing: border-box;
}
.search-form:focus-within {
  border-color: var(--color-accent) !important;
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1) !important;
}
.search-field {
  border: none !important;
  background: transparent !important;
  outline: none !important;
  width: 100% !important;
  padding: 5px !important;
  color: var(--color-text-primary) !important;
  font-family: 'Inter', sans-serif !important;
  font-size: 14px !important;
}
.search-submit {
  background: none !important;
  border: none !important;
  cursor: pointer !important;
  color: var(--color-text-secondary) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: color 0.3s ease !important;
  padding: 5px !important;
}
.search-submit svg { width: 18px; height: 18px; fill: none; }
.search-submit:hover { color: var(--color-accent) !important; }

@media (min-width: 769px) {
  .header-search .search-form { max-width: 250px; margin-left: auto; }
}

/* ---------- Header utilities ---------- */
.header-utilities {
  display: flex;
  align-items: center;
  gap: 15px;
}
.contact-btn {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  display: inline-block;
  transition: background var(--transition-fast), transform var(--transition-fast),
              box-shadow var(--transition-fast);
  border: none;
}
.contact-btn:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(211, 47, 47, 0.3);
}

/* ---------- Tablet / Mobile ---------- */
@media (max-width: 1024px) {
  .desktop-navigation { display: none; }
  .mobile-menu-toggle { display: flex; order: 4; }
  .site-branding { order: 1; margin-right: auto; }
  .header-search { order: 2; margin-right: 20px; }
  .header-utilities { order: 3; }
  .search-field { width: 150px; }
}

@media (max-width: 768px) {
  .desktop-tablet-only { display: none !important; }
  .mobile-menu-toggle { order: 1; margin-right: 15px; }
  .site-branding { order: 2; flex-grow: 1; text-align: left; }
  .header-utilities { order: 3; }
  .header-wrapper { justify-content: flex-start; }
  .site-branding a { font-size: 22px !important; }
  .theme-pill-toggle { transform: scale(0.85); transform-origin: right center; margin: 0 !important; }
  .language-switcher { display: none !important; }
  .header-search { display: none !important; }
}

/* ---------- Off‑canvas ---------- */
.offcanvas-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}
.offcanvas-overlay.is-active { opacity: 1; visibility: visible; }

.offcanvas-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 300px;
  height: 100vh;
  background: var(--color-surface-primary);
  box-shadow: 2px 0 20px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
  overflow-y: auto;
  padding-top: max(20px, env(safe-area-inset-top));
}
.offcanvas-overlay.is-active .offcanvas-panel { transform: translateX(0); }

.offcanvas-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px 20px;
  border-bottom: 1px solid var(--color-border-secondary);
  flex-shrink: 0;
}

.offcanvas-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  transition: color var(--transition-fast), transform var(--transition-fast);
  z-index: 1000;
}
.offcanvas-close svg { width: 24px; height: 24px; fill: currentColor; }
.offcanvas-close:hover { color: var(--color-accent); transform: rotate(90deg); }

.offcanvas-body { padding: 20px; flex-grow: 1; }
.offcanvas-body .search-form { margin-bottom: 20px; background: var(--color-surface-tertiary); }

.offcanvas-navigation { list-style: none; padding: 0; margin: 0 0 20px 0; }
.offcanvas-navigation ul { list-style: none; padding: 0; margin: 0; }
.offcanvas-navigation a {
  display: block;
  padding: 12px 0;
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  border-bottom: 1px solid var(--color-border-secondary);
  transition: color var(--transition-fast);
}
.offcanvas-navigation a:hover { color: var(--color-accent); }

.offcanvas-navigation .sub-menu {
  padding-left: 15px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.offcanvas-divider { border: 0; border-top: 1px solid var(--color-border-secondary); margin: 20px 0; }

.offcanvas-subscribe h4 { margin: 0 0 10px 0; font-size: 14px; color: var(--color-text-secondary); }
.offcanvas-subscribe input {
  width: 100%; padding: 10px; margin-bottom: 10px;
  border: 1px solid var(--color-border-secondary);
  border-radius: 4px; background: var(--color-surface-tertiary);
  color: var(--color-text-primary); box-sizing: border-box;
}
.offcanvas-subscribe button {
  width: 100%; padding: 10px;
  background: var(--color-text-primary); color: var(--color-surface-secondary);
  border: none; border-radius: 4px; font-weight: bold;
  cursor: pointer; transition: opacity var(--transition-fast);
}
.offcanvas-subscribe button:hover { opacity: 0.9; }

.offcanvas-mobile-utilities { margin-top: 20px; display: flex; flex-direction: column; gap: 15px; }
.full-width-btn { text-align: center; display: block; }

.offcanvas-footer {
  padding: 20px; text-align: center; font-size: 12px;
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border-secondary);
  flex-shrink: 0;
  background: var(--color-surface-primary);
}
.offcanvas-footer a { color: var(--color-text-secondary); text-decoration: none; margin: 0 5px; transition: color var(--transition-fast); }
.offcanvas-footer a:hover { color: var(--color-accent); }

/* ---------- Dropdown arrows ---------- */
.menu-item-has-children > a::after {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border: solid currentColor;
  border-width: 0 2px 2px 0;
  padding: 2px;
  transform: rotate(45deg);
  margin-left: 8px;
  vertical-align: middle;
  transition: transform var(--transition-smooth);
}
.menu-item-has-children:hover > a::after,
.menu-item-has-children.is-open > a::after { transform: rotate(-135deg); }

.sub-menu { list-style: none !important; padding: 0; margin: 0; }
.sub-menu li { list-style: none !important; }

/* ---------- Mega menu (desktop) ---------- */
.desktop-navigation li.datochai-has-mega-menu { position: static !important; }
.mega-menu-promo-item {
  grid-column: 4 / 5; grid-row: 1 / span 10;
  padding-left: 30px; border-left: 1px solid var(--color-border-secondary);
  list-style: none !important;
}
.mega-menu-promo-card {
  background: var(--color-surface-tertiary);
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--color-border-secondary);
}
.mega-menu-promo-card img { width: 100%; height: 180px; object-fit: cover; display: block; }
.promo-content { padding: 20px; text-align: center; }
.promo-content h4 { margin: 0 0 15px 0; font-size: 18px; color: var(--color-text-primary); }

@media (min-width: 1025px) {
  .desktop-navigation li.mega-menu-parent { position: static !important; }
  .desktop-navigation li.mega-menu-parent > a::after {
    width: 8px; height: 8px; margin-left: 6px; opacity: 0.7;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .desktop-navigation li.mega-menu-parent:hover > a::after { transform: rotate(-135deg); opacity: 1; }
  .desktop-navigation li.mega-menu-parent > .sub-menu {
    position: absolute !important; top: 100% !important; left: 0 !important; right: 0 !important; width: 100% !important;
    display: grid !important; grid-template-columns: repeat(5, 1fr) !important; gap: 20px !important;
    background: var(--color-surface-secondary) !important;
    padding: 40px !important;
    border-radius: 0 0 12px 12px !important;
    border-top: 4px solid var(--color-accent) !important;
    border-bottom: 1px solid var(--color-border-secondary) !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15) !important;
    opacity: 0; visibility: hidden; transform: translateY(10px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    z-index: 1000;
  }
  .desktop-navigation li.mega-menu-parent:hover > .sub-menu { opacity: 1 !important; visibility: visible !important; transform: translateY(0) !important; }
  .desktop-navigation li.mega-menu-parent > .sub-menu li { display: block; margin: 0; padding: 0; }
  .desktop-navigation li.mega-menu-parent > .sub-menu a {
    background: var(--color-surface-tertiary);
    border: 1px solid var(--color-border-secondary) !important;
    padding: 15px 20px !important; border-radius: 8px;
    font-size: 0.95rem !important; font-weight: 600 !important; text-align: center;
    color: var(--color-text-primary) !important; text-decoration: none;
    transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    display: block;
  }
  .desktop-navigation li.mega-menu-parent > .sub-menu a:hover {
    background: var(--color-surface-primary);
    border-color: var(--color-accent) !important;
    color: var(--color-accent) !important; transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(211, 47, 47, 0.1);
  }
  .desktop-navigation li.mega-menu-parent > .sub-menu a::after,
  .desktop-navigation li.mega-menu-parent > .sub-menu a::before { display: none !important; }
}

/* ---------- Breadcrumbs ---------- */
.datochai-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text-secondary);
}
.datochai-breadcrumbs a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity 0.2s ease;
}
.datochai-breadcrumbs a:hover { opacity: 0.8; }
.datochai-breadcrumbs .breadcrumb-separator {
  display: inline-flex;
  align-items: center;
  margin: 0 6px;
  color: var(--color-accent);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
}
.datochai-breadcrumbs .breadcrumb-separator svg { display: none; }
.datochai-breadcrumbs .breadcrumb-separator::before {
  content: "›";
  display: inline-block;
  font-size: 20px;
  line-height: 1;
  vertical-align: middle;
}
.datochai-breadcrumbs .current-page {
  color: var(--color-text-primary);
  font-weight: 700;
}
@media (max-width: 768px) {
  .datochai-breadcrumbs { font-size: 12px; }
  .datochai-breadcrumbs .breadcrumb-separator::before { font-size: 16px; }
}

/* ---------- Theme pill toggle ---------- */
.theme-pill-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 64px; height: 32px;
  border-radius: 30px;
  border: 2px solid var(--color-accent);
  background: transparent;
  padding: 2px;
  position: relative;
  cursor: pointer;
  transition: border-color 0.3s ease;
}
.theme-pill-toggle::before {
  content: '';
  position: absolute;
  left: 2px; top: 2px;
  width: 24px; height: 24px;
  background-color: var(--color-accent);
  border-radius: 50%;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.toggle-sun, .toggle-moon {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: center;
  width: 24px; height: 24px;
}
.toggle-sun svg, .toggle-moon svg {
  width: 16px; height: 16px;
  stroke: currentColor; stroke-width: 2px; fill: none;
  transition: stroke 0.3s ease;
}
.toggle-sun { color: #ffffff; }
.toggle-moon { color: var(--color-accent); }

body.dark-mode .theme-pill-toggle { border-color: var(--color-text-primary); }
body.dark-mode .theme-pill-toggle::before {
  background-color: var(--color-text-primary);
  transform: translateX(32px);
}
body.dark-mode .toggle-sun { color: var(--color-text-primary); }
body.dark-mode .toggle-moon { color: var(--color-surface-secondary); }