/* ==========================================================================
   Header — design tokens
   ========================================================================== */
:root {
  --header-height: 90px; /* Logo 78px fit karne ke liye height adjust ki hai */
  --header-bg: #ffffff;
  --header-border: #e7ebee;
  --ink: #0a181e; /* Darker font color */
  --ink-soft: #1a2b32; /* Darker secondary font color */
  --brand: #0d7f8f;
  --brand-dark: #095f6c;
  --whatsapp-green: #25d366;
  --whatsapp-dark: #1da851;
  --panel-shadow: 0 16px 40px -12px rgba(16, 36, 44, 0.18);
  --transition-fast: 180ms ease;
  --transition-med: 260ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Base header shell
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  z-index: 1000;
}

.header-inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-logo img {
  height: 78px; 
  width: auto;
  display: block;
  object-fit: contain;
}

/* ==========================================================================
   Nav list (desktop)
   ========================================================================== */
.header-nav {
  display: flex;
  align-items: center;
  margin-left: auto; /* Push menu to the right away from logo */
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 600; /* Bolder font weight */
  color: var(--ink); /* Darker color */
  text-decoration: none;
  white-space: nowrap;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 6px;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--brand-dark);
  background: rgba(13, 127, 143, 0.08);
}

.nav-link.is-active {
  color: var(--brand-dark);
}

.dropdown-caret {
  transition: transform var(--transition-fast);
}

.has-dropdown:hover .dropdown-caret,
.has-dropdown.is-open .dropdown-caret {
  transform: rotate(180deg);
}

/* ==========================================================================
   Dropdown panels (desktop = hover)
   ========================================================================== */
.dropdown-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 240px;
  background: var(--header-bg);
  border: 1px solid var(--header-border);
  border-radius: 10px;
  box-shadow: var(--panel-shadow);
  list-style: none;
  margin: 0;
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.dropdown-panel--grid {
  min-width: 480px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px 8px;
}

.dropdown-panel li a {
  display: block;
  padding: 9px 12px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-soft); /* Darker dropdown text */
  text-decoration: none;
  border-radius: 6px;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-panel li a:hover,
.dropdown-panel li a:focus-visible {
  background: rgba(13, 127, 143, 0.08);
  color: var(--brand-dark);
}

/* ==========================================================================
   Styled WhatsApp CTA button
   ========================================================================== */
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--whatsapp-green);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 50px; /* Rounded pill shape */
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--whatsapp-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
}

.header-cta--mobile {
  display: none;
}

/* ==========================================================================
   Hamburger (Right aligned on mobile)
   ========================================================================== */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  margin-left: auto; /* Pushes 3 lines hamburger to the far right */
}

.hamburger-line {
  width: 24px;
  height: 2.5px;
  background: var(--ink);
  margin: 0 auto;
  border-radius: 2px;
  transition: transform var(--transition-med), opacity var(--transition-med);
}

.nav-overlay {
  display: none;
}

/* ==========================================================================
   Desktop behaviour (>= 1024px): hover-driven dropdowns
   ========================================================================== */
@media (min-width: 1024px) {
  .has-dropdown:hover .dropdown-panel,
  .has-dropdown:focus-within .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Mobile / tablet behaviour (< 1024px)
   ========================================================================== */
@media (max-width: 1023.98px) {

  .header-cta--desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Sliding drawer */
  .header-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 84vw);
    height: 100vh;
    background: var(--header-bg);
    flex-direction: column;
    align-items: stretch;
    padding: calc(var(--header-height) + 12px) 20px 24px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-med);
    box-shadow: -16px 0 40px -20px rgba(16, 36, 44, 0.3);
    margin-left: 0;
  }

  .header-nav.is-open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 13px 10px;
    font-size: 16px;
    color: var(--ink);
    border-bottom: 1px solid var(--header-border);
    border-radius: 0;
  }

  .dropdown-caret {
    transition: transform var(--transition-fast);
  }

  /* Dropdown becomes an accordion, controlled by JS toggling .is-open */
  .dropdown-panel,
  .dropdown-panel--grid {
    position: static;
    display: block;
    min-width: 0;
    grid-template-columns: 1fr;
    box-shadow: none;
    border: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-med);
  }

  .has-dropdown.is-open .dropdown-panel {
    max-height: 900px;
    padding: 4px 0 10px 14px;
  }

  .dropdown-panel li a {
    padding: 11px 10px;
    font-size: 15px;
    color: var(--ink-soft);
  }

  .header-cta--mobile {
    display: inline-flex;
    margin-top: 18px;
    width: 100%;
  }

  /* Backdrop behind the drawer */
  .nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(16, 36, 44, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-med), visibility var(--transition-med);
    z-index: 998;
  }

  .nav-overlay.is-open {
    opacity: 1;
    visibility: visible;
  }

  .header-nav {
    z-index: 999;
  }

  /* Hamburger → X */
  .hamburger.is-open .hamburger-line:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
  }

  .hamburger.is-open .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .hamburger.is-open .hamburger-line:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
  }

  /* Lock body scroll while drawer is open */
  body.nav-is-locked {
    overflow: hidden;
  }
}