/* ============================================================
   DAAK BANGLA RETREAT — Navigation Styles
   nav.css  |  Theme: MBE Clone
   ============================================================ */

/* ============================================================
   MAIN NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  transition: background var(--transition-base), height var(--transition-base), box-shadow var(--transition-base);
  min-height: clamp(80px, 8vw, 100px);
  height: auto;
  display: flex;
  align-items: center;
  padding: 10px 0;
}

/* Transparent state (over hero) */
.navbar.navbar-transparent {
  background: transparent;
}

/* Error page navbar before scrolling */
body.error-page .navbar.navbar-transparent {
  background: var(--color-ink);
}

/* Scrolled state — frosted glass, dark text */
.navbar.navbar-scrolled {
  background: rgba(249, 247, 243, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  min-height: clamp(70px, 6vw, 80px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* Menu open state overrides */
.navbar.menu-open {
  background: transparent !important;
  box-shadow: none !important;
}

.navbar.menu-open .nav-toggle {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.navbar.navbar-scrolled .nav-toggle,
.navbar.navbar-scrolled .nav-toggle-label,
.navbar.navbar-scrolled .brand-name,
.navbar.navbar-scrolled .nav-phone,
.navbar.navbar-scrolled .nav-cta,
.navbar.menu-open .nav-toggle,
.navbar.menu-open .nav-toggle-label,
.navbar.menu-open .brand-name,
.navbar.menu-open .nav-phone,
.navbar.menu-open .nav-cta {
  color: var(--color-ink) !important;
}

.navbar.navbar-scrolled .nav-cta,
.navbar.menu-open .nav-cta {
  border-color: var(--color-ink);
}

.navbar.navbar-scrolled .nav-cta:hover,
.navbar.menu-open .nav-cta:hover {
  background: var(--color-ink) !important;
  border-color: var(--color-ink) !important;
  color: var(--color-cream) !important;
}

.navbar.navbar-scrolled .brand-logo,
.navbar.menu-open .brand-logo,
.nav-menu-header .brand-logo {
  filter: brightness(0);
}

.navbar-inner {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, var(--space-xl));
}

/* ============================================================
   LEFT SECTION — Menu toggle
   ============================================================ */
.navbar-left {
  flex: 1;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.nav-toggle {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.8rem;
  cursor: pointer;
  padding: 0;
  background: none;
  border: none;
  color: var(--color-cream);
  transition: color var(--transition-fast);
}

.nav-toggle-icon-wrap {
  font-size: clamp(0.9rem, 1.5vw, 1.2rem);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-toggle-label {
  font-family: var(--font-body);
  font-size: clamp(0.55rem, 1vw, 0.65rem);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1;
}

/* ============================================================
   CENTER SECTION — Brand name
   ============================================================ */
.navbar-brand {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  text-align: center;
}

.brand-logo {
  height: clamp(45px, 6vw, 65px);
  width: auto;
  object-fit: contain;
  display: block;
  padding: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border: none;
  box-shadow: none;
  border-radius: 0;
}

/* ============================================================
   RIGHT SECTION — Phone + Reserve
   ============================================================ */
.navbar-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(1rem, 2vw, 2rem);
  transition: opacity var(--transition-fast);
}

.navbar.menu-open .navbar-right,
.navbar.menu-open .navbar-brand {
  opacity: 0;
  pointer-events: none;
}

.nav-phone {
  font-family: var(--font-body);
  font-size: clamp(0.6rem, 1vw, 0.75rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: rgba(250, 247, 242, 0.85);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-phone:hover {
  color: var(--color-cream);
}

.nav-cta {
  font-family: var(--font-body);
  font-size: clamp(0.55rem, 1vw, 0.65rem);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-cream) !important;
  background: transparent;
  border: 1px solid var(--color-cream);
  padding: clamp(0.4rem, 1vw, 0.6rem) clamp(1rem, 2vw, 1.4rem) !important;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
  display: inline-block;
  border-radius: 50px;
}

.nav-cta:hover {
  background: var(--color-white) !important;
  border-color: var(--color-white) !important;
  color: var(--color-ink) !important;
}

/* ============================================================
   SLIDE-IN SIDEBAR NAVIGATION MENU
   ============================================================ */
.nav-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 100%;
  max-width: 450px;
  background: var(--color-linen);
  z-index: calc(var(--z-sticky) + 1);
  transform: translateX(-100%);
  visibility: hidden;
  transition: transform 0.5s ease, visibility 0.5s ease;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
}

.nav-menu-overlay.active {
  transform: translateX(0);
  visibility: visible;
}

.nav-menu-container {
  width: 100%;
  padding: clamp(20px, 4vw, 40px) clamp(20px, 4vw, 40px) clamp(30px, 6vw, 60px);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transition: opacity 0.4s ease 0.2s;
  flex-grow: 1;
  justify-content: flex-start;
}

.nav-menu-overlay.active .nav-menu-container {
  opacity: 1;
}

/* ============================================================
   NAV MENU HEADER (Inside Sidebar)
   ============================================================ */
.nav-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(15px, 3vw, 30px) clamp(20px, 4vw, 40px);
  border-bottom: 1px solid var(--color-sand);
}

.nav-menu-brand-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
}

/* Text brand removed */

.nav-menu-close {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: clamp(0.55rem, 1vw, 0.65rem);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--color-ink-light);
  transition: color var(--transition-fast);
}

.nav-menu-close:hover {
  color: var(--color-ink);
}

/* ============================================================
   NAV MENU DROPDOWN (Click to open)
   ============================================================ */
.nav-dropdown-toggle {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2vw, 1.8rem);
  font-weight: 300;
  color: var(--color-ink-light);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.nav-dropdown-toggle:hover,
.nav-dropdown-toggle.active {
  color: var(--color-ink);
}

.nav-dropdown-toggle i {
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  transition: transform var(--transition-fast);
}

.nav-dropdown-toggle[aria-expanded="true"] i {
  transform: rotate(360deg);
}

.nav-dropdown-menu {
  list-style: none;
  padding: 0 0 0 3.5rem !important;
  margin: 0 !important;
  display: flex;
  flex-direction: column;
  gap: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s ease, margin-top 0.4s ease, opacity 0.3s ease, gap 0.4s ease;
}

.nav-dropdown-toggle[aria-expanded="true"]+.nav-dropdown-menu {
  max-height: 500px;
  margin-top: 1rem !important;
  gap: 1rem;
  opacity: 1;
}

.nav-dropdown-menu a {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

/* ============================================================
   NAV MENU COLUMNS
   ============================================================ */
.nav-menu-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.nav-menu-list a {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2vw, 1.8rem);
  font-weight: 300;
  color: var(--color-ink-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-menu-list a:hover,
.nav-menu-list a.active {
  color: var(--color-ink);
  font-weight: 500;
  text-decoration: underline;
}

.nav-menu-subtitle {
  font-family: var(--font-body);
  font-size: clamp(0.8rem, 1.2vw, 1rem);
  font-weight: 400;
  color: var(--color-ink);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.nav-menu-collection {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2.5vw, 2rem);
}

.nav-menu-collection a {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  font-weight: 300;
  color: var(--color-ink-light);
  text-decoration: none;
  display: block;
  margin-bottom: clamp(0.3rem, 0.5vw, 0.5rem);
  transition: color var(--transition-fast);
}

.nav-menu-collection a:hover {
  color: var(--color-ink);
}

.nav-menu-meta {
  font-family: var(--font-body);
  font-size: clamp(0.5rem, 0.8vw, 0.6rem);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  display: block;
}

/* ============================================================
   MOBILE NAVIGATION (Structural Shifts)
   ============================================================ */
.nav-menu-mobile-cta {
  display: none;
}

@media (max-width: 992px) {
  .navbar-brand {
    order: 1;
    flex: 0 0 auto;
    align-items: flex-start;
  }

  .navbar-left {
    order: 2;
    flex: 1;
    justify-content: flex-end;
  }

  .navbar-right {
    display: none;
  }

  .nav-toggle-label {
    display: none;
  }

  .nav-menu-mobile-cta {
    display: flex;
    justify-content: center;
    padding: var(--space-xl) 0 var(--space-3xl);
    margin-top: auto;
  }

  .nav-menu-mobile-cta .btn {
    background-color: var(--color-ink) !important;
    color: var(--color-white) !important;
    border-color: var(--color-ink) !important;
  }
}