/**
 * Stafferin Professional Navbar
 * Modern, elegant navigation design
 */

/* ==================== CSS VARIABLES ==================== */
:root {
  --nav-primary: #5B9BD5;
  --nav-primary-dark: #4A8BC4;
  --nav-primary-light: #7BB3E0;
  --nav-dark: #4A5568;
  --nav-text: #4A5568;
  --nav-text-light: #718096;
  --nav-white: #FFFFFF;
  --nav-gray-50: #FAFBFD;
  --nav-gray-100: #F4F6F9;
  --nav-gray-200: #E8ECF1;
  --nav-border: rgba(91, 155, 213, 0.08);
  --nav-shadow: 0 4px 6px -1px rgba(90, 107, 123, 0.05), 0 2px 4px -1px rgba(90, 107, 123, 0.03);
  --nav-shadow-lg: 0 12px 20px -5px rgba(90, 107, 123, 0.1), 0 8px 10px -5px rgba(90, 107, 123, 0.04);
  --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== NAVBAR BASE ==================== */
.navbar {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--nav-border);
  padding: 0 !important;
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1050 !important;
  transition: var(--nav-transition);
  height: 72px;
}

.navbar > .container {
  height: 100%;
  display: flex;
  align-items: center;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98) !important;
  box-shadow: var(--nav-shadow-lg);
  height: 64px;
}

/* ==================== NAVBAR BRAND ==================== */
.navbar .navbar-brand {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
  font-size: 1.5rem !important;
  font-weight: 800 !important;
  background: linear-gradient(135deg, var(--nav-primary) 0%, var(--nav-primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.75px;
  text-decoration: none !important;
  position: relative;
  padding: 0.5rem 0;
  transition: var(--nav-transition);
}

.navbar .navbar-brand:hover {
  transform: scale(1.02);
}

/* ==================== NAV CONTAINER ==================== */
.navbar .navbar-collapse {
  flex-grow: 0 !important;
}

.navbar .navbar-nav {
  align-items: center;
  gap: 0.25rem;
}

/* ==================== NAV LINKS ==================== */
.navbar .navbar-nav .nav-item {
  position: relative;
}

.navbar .navbar-nav .nav-link {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
  color: var(--nav-text) !important;
  font-weight: 500 !important;
  font-size: 0.9rem !important;
  padding: 0.6rem 1rem !important;
  margin: 0;
  border-radius: 10px;
  transition: var(--nav-transition);
  position: relative;
  letter-spacing: -0.01em;
}

.navbar .navbar-nav .nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 1.5rem);
  height: 2px;
  background: linear-gradient(90deg, var(--nav-primary), var(--nav-primary-light));
  border-radius: 2px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar .navbar-nav .nav-link:hover {
  color: var(--nav-primary) !important;
  background: transparent;
}

.navbar .navbar-nav .nav-link:hover::before {
  transform: translateX(-50%) scaleX(1);
}

.navbar .navbar-nav .nav-link.active {
  color: var(--nav-primary) !important;
}

.navbar .navbar-nav .nav-link.active::before {
  transform: translateX(-50%) scaleX(1);
}

/* ==================== DROPDOWN STYLES ==================== */
.navbar .nav-item.dropdown {
  position: relative;
}

.navbar .dropdown-toggle::after {
  display: inline-block;
  margin-left: 0.4rem;
  vertical-align: middle;
  content: '';
  border: none;
  width: 8px;
  height: 8px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23334155'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
  transition: transform 0.3s ease;
}

.navbar .dropdown-toggle:hover::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232563EB'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}

.navbar .nav-item.dropdown.show .dropdown-toggle::after {
  transform: rotate(180deg);
}

.navbar .dropdown-menu {
  border: none !important;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 0 1px rgba(0, 0, 0, 0.1) !important;
  border-radius: 16px !important;
  padding: 0.75rem !important;
  margin-top: 0.75rem !important;
  background: var(--nav-white) !important;
  min-width: 240px;
  animation: dropdownFade 0.25s ease;
  overflow: hidden;
}

@keyframes dropdownFade {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.navbar .dropdown-item {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
  border-radius: 10px !important;
  padding: 0.75rem 1rem !important;
  font-weight: 500 !important;
  font-size: 0.9rem !important;
  transition: var(--nav-transition);
  color: var(--nav-text) !important;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar .dropdown-item:hover {
  background: linear-gradient(135deg, var(--nav-gray-50) 0%, var(--nav-gray-100) 100%) !important;
  color: var(--nav-primary) !important;
  transform: translateX(4px);
}

.navbar .dropdown-item i {
  font-size: 1.1rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--nav-gray-100);
  border-radius: 8px;
  color: var(--nav-text-light);
  transition: var(--nav-transition);
}

.navbar .dropdown-item:hover i {
  background: linear-gradient(135deg, var(--nav-primary) 0%, var(--nav-primary-light) 100%);
  color: var(--nav-white);
}

/* ==================== CTA BUTTON - PLAIN & NEAT ==================== */
.navbar .btn-nav {
  background: var(--nav-gray-100) !important;
  color: var(--nav-dark) !important;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
  font-weight: 600 !important;
  font-size: 0.875rem !important;
  padding: 0.6rem 1.25rem !important;
  border-radius: 8px !important;
  transition: all 0.2s ease;
  text-decoration: none !important;
  border: none !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  letter-spacing: -0.01em;
}

.navbar .btn-nav:hover {
  background: var(--nav-gray-200) !important;
  color: var(--nav-dark) !important;
}

.navbar .btn-nav:active {
  background: var(--nav-gray-300) !important;
}

/* ==================== LOGIN DROPDOWN SPECIAL ==================== */
.navbar .nav-item.dropdown .nav-link.dropdown-toggle:not(.btn-nav) {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* ==================== TOGGLER - CLEAN HAMBURGER ==================== */
.navbar .navbar-toggler {
  border: none !important;
  padding: 0.5rem;
  width: 40px;
  height: 40px;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--nav-gray-100);
  transition: var(--nav-transition);
}

@media (max-width: 991px) {
  .navbar .navbar-toggler {
    display: flex;
  }
}

.navbar .navbar-toggler:hover {
  background: var(--nav-gray-200);
}

.navbar .navbar-toggler:focus {
  box-shadow: none !important;
  outline: none;
}

.navbar .toggler-icon {
  width: 18px;
  height: 2px;
  background: var(--nav-dark);
  position: relative;
  border-radius: 2px;
}

.navbar .toggler-icon::before,
.navbar .toggler-icon::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 2px;
  background: var(--nav-dark);
  border-radius: 2px;
  left: 0;
}

.navbar .toggler-icon::before {
  top: -6px;
}

.navbar .toggler-icon::after {
  top: 6px;
}

/* ==================== RESPONSIVE - TABLET & MOBILE ==================== */
@media (max-width: 991px) {
  .navbar {
    height: 64px;
  }

  .navbar .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--nav-white);
    padding: 1.25rem;
    border-radius: 0 0 20px 20px;
    box-shadow: var(--nav-shadow-lg);
    border-top: 1px solid var(--nav-border);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
  }

  .navbar .navbar-nav {
    gap: 0.25rem;
    align-items: stretch;
  }

  .navbar .navbar-nav .nav-link {
    padding: 0.875rem 1rem !important;
    border-radius: 12px;
    font-size: 0.95rem !important;
  }

  .navbar .navbar-nav .nav-link::before {
    display: none;
  }

  .navbar .navbar-nav .nav-link:hover {
    background: var(--nav-gray-50);
  }

  .navbar .dropdown-menu {
    box-shadow: none !important;
    padding: 0.5rem 0 0.5rem 1rem !important;
    background: transparent !important;
    margin-top: 0 !important;
    border-radius: 0 !important;
    animation: none;
    position: static !important;
    transform: none !important;
  }

  .navbar .dropdown-item {
    padding: 0.75rem 1rem !important;
    border-radius: 10px !important;
  }

  .navbar .dropdown-item:hover {
    transform: none;
    background: var(--nav-gray-50) !important;
  }

  .navbar .dropdown-item i {
    width: 28px;
    height: 28px;
    font-size: 0.95rem;
  }

  .navbar .nav-item:has(.btn-nav) {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--nav-gray-200);
  }

  .navbar .btn-nav {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 0.875rem 1.5rem !important;
    font-size: 0.9rem !important;
    border-radius: 8px !important;
  }
}

/* ==================== SMALL MOBILE ==================== */
@media (max-width: 576px) {
  .navbar {
    height: 60px;
  }

  .navbar .navbar-brand {
    font-size: 1.35rem !important;
  }

  .navbar .navbar-collapse {
    padding: 1rem;
  }
}

/* ==================== OVERRIDE OLD STYLES ==================== */
header#header.header.fixed-top {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  padding: 0 !important;
  border-bottom: 1px solid var(--nav-border);
}

#header .logo span {
  font-size: 1.5rem !important;
  font-weight: 800 !important;
  background: linear-gradient(135deg, var(--nav-primary) 0%, var(--nav-primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

#navbar ul {
  display: flex !important;
  align-items: center !important;
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  gap: 0.25rem;
}

#navbar .nav-link {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
  color: var(--nav-text) !important;
  font-weight: 500 !important;
  font-size: 0.9rem !important;
  padding: 0.6rem 1rem !important;
  border-radius: 10px;
  transition: var(--nav-transition);
}

#navbar .nav-link:hover {
  color: var(--nav-primary) !important;
  background: transparent;
}

#navbar .dropdown-menu {
  border: none !important;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 0 1px rgba(0, 0, 0, 0.1) !important;
  border-radius: 16px !important;
  padding: 0.75rem !important;
}

#navbar .dropdown-item {
  border-radius: 10px !important;
  padding: 0.75rem 1rem !important;
  font-weight: 500 !important;
}

#navbar .dropdown-item:hover {
  background: linear-gradient(135deg, var(--nav-gray-50) 0%, var(--nav-gray-100) 100%) !important;
  color: var(--nav-primary) !important;
}

/* Hide old mobile toggle */
.mobile-nav-toggle {
  display: none !important;
}

/* ==================== DARK MODE SUPPORT (Optional) ==================== */
@media (prefers-color-scheme: dark) {
  /* Can be enabled for dark mode support */
}