/* Header Styles */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  height: 80px;
  /* fallback or define var */
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-color);
}

.logo img {
  height: 40px;
  width: auto;
}

.desktop-nav ul {
  display: flex;
  gap: 32px;
}

.desktop-nav a {
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
}

.desktop-nav a:hover {
  color: var(--primary-color);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
  margin-left: 16px;
}

/* =========================
   MOBILE NAV (Strictly <= 767px)
   ========================= */
@media (max-width: 767px) {
  .desktop-nav {
    display: none;
  }

  .header-actions .btn {
    display: none;
  }

  .hamburger {
    display: block;
    font-size: 1.25rem;
    padding: 8px;
    /* Touch target */
    margin-right: -8px;
    /* Align to edge */
  }

  /* Reduce padding on header container */
  .header-container {
    padding-left: 16px;
    padding-right: 16px;
    height: 70px;
    /* Reduced fixed height for mobile */
  }

  .site-header {
    height: 70px;
    /* Match container */
  }

  .logo img {
    height: 28px;
    /* Smaller logo */
  }

  .logo span {
    font-size: 1rem;
    white-space: nowrap;
  }

  .side-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    /* Full width on small screens */
    max-width: 300px;
    /* Cap width for larger phones */
    height: 100vh;
    /* Fallback */
    height: 100dvh;
    /* Dynamic viewport height for mobile browsers */
    background: white;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2147483647;
    /* Max z-index to overlay Tawk.to */
    display: flex;
    flex-direction: column;
    box-shadow: none;
  }

  .side-nav.open {
    transform: translateX(0);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
  }

  /* Scrollable Content Area */
  .side-nav-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 20px 20px 0;
    /* No bottom padding here */
  }

  .side-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 1.1rem;
    font-weight: 700;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
  }

  .side-nav-header button {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 8px;
    color: var(--text-primary);
  }

  .mobile-links {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .mobile-links a {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-primary);
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
    display: block;
  }

  .mobile-links a:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-soft);
    padding-left: 8px;
    transition: all 0.2s ease;
  }

  .mobile-actions {
    /* Sticky Footer Logic */
    margin-top: auto;
    /* Push to bottom if content is short */
    background: white;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 10;
    /* Ensure it stays at bottom */
    position: sticky;
    bottom: 0;
  }

  .mobile-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 12px;
    font-size: 1rem;
  }

  .overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2147483640;
    /* Just below sidenav */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
  }

  .overlay.open {
    opacity: 1;
    visibility: visible;
  }

  body.no-scroll {
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
    width: 100%;
    position: fixed;
  }
}

/* =========================
   DESKTOP NAV (Strictly >= 768px)
   ========================= */
@media (min-width: 768px) {

  .side-nav,
  .overlay,
  .hamburger,
  .side-nav-header {
    display: none !important;
  }

  .desktop-nav {
    display: block;
  }

  .desktop-nav ul {
    display: flex;
    gap: 32px;
    align-items: center;
  }

  .header-actions .btn {
    display: inline-flex;
  }
}