/* ==========================================
   NAVBAR & HEADER
   Стилі для навігаційної панелі
   ========================================== */

/* ==========================================
   SITE HEADER
   ========================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: transparent;
}

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
  backdrop-filter: blur(10px);
  background: var(--bg-navbar);
  padding: 1rem 0;
  transition: var(--transition);
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.navbar-container {
  width: 100%;
  padding-left: 2rem;
  padding-right: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 1800px) {
  .navbar-container {
    padding-left: 20%;
    padding-right: 20%;
  }
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.navbar-brand {
  display: flex;
  align-items: center;
  margin: 0;
}

@media (min-width: 1200px) {
  .navbar-nav {
    gap: 0.25rem;
  }

  .nav-link {
    margin: 0;
    padding: 0.5rem 0.75rem;
  }
}

/* ==========================================
   LOGO
   ========================================== */
.main-logo {
  height: 45px;
  transition: var(--transition);
}

.navbar-brand img {
  height: 45px;
}

/* ==========================================
   NAV LINKS
   ========================================== */
.nav-link {
  font-weight: 600;
  letter-spacing: 0.3px;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  transition: var(--transition);
  color: var(--text);
}

.nav-link:hover {
  background: rgba(var(--rgb-blue-500), 0.1);
  color: var(--primary);
}

.nav-link.active {
  background: var(--dark-surface);
  color: var(--primary);
}

/* ==========================================
   NAVBAR TOGGLER
   ========================================== */
.navbar-toggler-icon {
  transition: var(--transition);
}

.custom-toggler {
  border-color: var(--border);
}

/* ==========================================
   DROPDOWN
   ========================================== */
.dropdown-menu {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--bg-card);
}

.dropdown-item {
  padding: 0.5rem 1rem;
  transition: var(--transition-fast);
  color: var(--text);
}

.dropdown-item:hover {
  background: var(--light);
  color: var(--primary);
}

.dropdown-divider {
  border-color: var(--border);
}

/* ==========================================
   NAV END
   ========================================== */
.nav-end {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

@media (min-width: 992px) {
  .navbar-collapse {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .navbar-nav {
    flex: 1;
    justify-content: center;
    flex-wrap: nowrap;
  }

  .nav-link {
    margin: 0;
    padding: 0.5rem 0.75rem;
    white-space: nowrap;
  }
}

/* ==========================================
   DARK MODE - NAVBAR
   ========================================== */
body.dark-mode .navbar {
  background: var(--bg-navbar);
  border-bottom: 1px solid rgba(var(--rgb-white), 0.05);
  box-shadow: 0 4px 20px rgba(var(--rgb-black), 0.2);
}

body.dark-mode .nav-link {
  color: var(--light);
}

body.dark-mode .nav-link:hover {
  background: rgba(var(--rgb-white), 0.1);
  color: var(--primary);
}

body.dark-mode .navbar-toggler-icon {
  filter: invert(1);
}

body.dark-mode .dropdown-menu {
  background: var(--dark-surface);
  border: 1px solid rgba(var(--rgb-white), 0.1);
}

body.dark-mode .dropdown-item {
  color: var(--light);
}

body.dark-mode .dropdown-item:hover {
  background: var(--dark-hover);
  color: var(--primary);
}

body.dark-mode .dropdown-divider {
  border-color: rgba(var(--rgb-white), 0.1);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
  .navbar-container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .navbar-brand img {
    height: 35px;
  }

  .main-logo {
    height: 35px;
  }

  .nav-link {
    margin: 0.25rem 0;
    padding: 0.75rem 1rem;
  }
}

@media (max-width: 991px) {
  .navbar-collapse {
    background: var(--bg-card);
    padding: 1rem;
    border-radius: var(--radius);
    margin-top: 1rem;
    box-shadow: var(--shadow);
  }

  body.dark-mode .navbar-collapse {
    background: var(--dark-surface);
  }

  .nav-end {
    margin-top: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
}