/* =============================================================================
   BlocHost Design System - Navigation
   Minimal, typography-driven navbar and navigation patterns
   ============================================================================= */

/* =========================================================================
   Base Navbar
   ========================================================================= */

.navbar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-3) var(--spacing-4);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--border-color);
}

.navbar > .container,
.navbar > .container-fluid {
  display: flex;
  flex-wrap: inherit;
  align-items: center;
  justify-content: space-between;
}

/* =========================================================================
   Navbar Brand
   ========================================================================= */

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-right: 1rem;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: var(--letter-spacing-tight);
  transition: color var(--transition-fast);
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-brand img {
  max-height: 32px;
  width: auto;
}

.navbar-brand-icon {
  width: 24px;
  height: 24px;
  background-color: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* =========================================================================
   Navbar Nav
   ========================================================================= */

.navbar-nav {
  display: flex;
  flex-direction: column;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

.navbar-nav .nav-link {
  padding-right: 0;
  padding-left: 0;
}

.navbar-nav .dropdown-menu {
  position: static;
}

/* =========================================================================
   Nav Link
   ========================================================================= */

.nav-link {
  display: block;
  padding: var(--spacing-2) var(--spacing-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--text-primary);
  text-decoration: none;
}

.nav-link.disabled {
  color: var(--text-muted);
  pointer-events: none;
  cursor: default;
}

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

/* =========================================================================
   Nav Item
   ========================================================================= */

.nav-item {
  margin-bottom: 0;
}

/* =========================================================================
   Navbar Text
   ========================================================================= */

.navbar-text {
  padding-top: var(--spacing-2);
  padding-bottom: var(--spacing-2);
  color: var(--text-secondary);
}

/* =========================================================================
   Navbar Collapse
   ========================================================================= */

.navbar-collapse {
  flex-basis: 100%;
  flex-grow: 1;
  align-items: center;
}

.collapse:not(.show) {
  display: none;
}

.collapsing {
  height: 0;
  overflow: hidden;
  transition: height var(--transition-slow);
}

/* =========================================================================
   Navbar Toggler
   ========================================================================= */

.navbar-toggler {
  padding: var(--spacing-2);
  font-size: var(--font-size-base);
  line-height: 1;
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.navbar-toggler:hover {
  text-decoration: none;
  border-color: var(--text-secondary);
}

.navbar-toggler:focus {
  text-decoration: none;
  outline: 0;
  border-color: var(--color-primary);
}

.navbar-toggler-icon {
  display: inline-block;
  width: 1.25em;
  height: 1.25em;
  vertical-align: middle;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23666666' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100%;
}

/* =========================================================================
   Navbar Light Theme (Default)
   ========================================================================= */

.navbar-light {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--border-color);
}

.navbar-light .navbar-brand {
  color: var(--text-primary);
}

.navbar-light .navbar-brand:hover,
.navbar-light .navbar-brand:focus {
  color: var(--color-primary);
}

.navbar-light .navbar-nav .nav-link {
  color: var(--text-secondary);
}

.navbar-light .navbar-nav .nav-link:hover,
.navbar-light .navbar-nav .nav-link:focus {
  color: var(--text-primary);
}

.navbar-light .navbar-nav .nav-link.active,
.navbar-light .navbar-nav .show > .nav-link {
  color: var(--color-primary);
}

.navbar-light .navbar-toggler {
  color: var(--text-secondary);
  border-color: var(--border-color);
}

.navbar-light .navbar-text {
  color: var(--text-secondary);
}

/* =========================================================================
   Navbar Dark Theme (Minimal)
   ========================================================================= */

.navbar-dark,
.bg-dark {
  background-color: var(--color-dark) !important;
  border-bottom: none;
}

.navbar-dark .navbar-brand {
  color: var(--color-white);
}

.navbar-dark .navbar-brand:hover,
.navbar-dark .navbar-brand:focus {
  color: var(--color-primary);
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.7);
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link:focus {
  color: var(--color-white);
}

.navbar-dark .navbar-nav .nav-link.active,
.navbar-dark .navbar-nav .show > .nav-link {
  color: var(--color-primary);
}

.navbar-dark .navbar-toggler {
  color: rgba(255, 255, 255, 0.7);
  border-color: rgba(255, 255, 255, 0.2);
}

.navbar-dark .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.7%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-dark .navbar-text {
  color: rgba(255, 255, 255, 0.7);
}

/* =========================================================================
   Responsive Navbar Expand
   ========================================================================= */

.navbar-expand {
  flex-wrap: nowrap;
  justify-content: flex-start;
}

.navbar-expand .navbar-nav {
  flex-direction: row;
}

.navbar-expand .navbar-nav .dropdown-menu {
  position: absolute;
}

.navbar-expand .navbar-nav .nav-link {
  padding-right: var(--spacing-2);
  padding-left: var(--spacing-2);
}

.navbar-expand .navbar-collapse {
  display: flex !important;
  flex-basis: auto;
}

.navbar-expand .navbar-toggler {
  display: none;
}

/* Expand at lg breakpoint */
@media (min-width: 992px) {
  .navbar-expand-lg {
    flex-wrap: nowrap;
    justify-content: flex-start;
  }
  
  .navbar-expand-lg .navbar-nav {
    flex-direction: row;
  }
  
  .navbar-expand-lg .navbar-nav .dropdown-menu {
    position: absolute;
  }
  
  .navbar-expand-lg .navbar-nav .nav-link {
    padding-right: var(--spacing-2);
    padding-left: var(--spacing-2);
  }
  
  .navbar-expand-lg .navbar-collapse {
    display: flex !important;
    flex-basis: auto;
  }
  
  .navbar-expand-lg .navbar-toggler {
    display: none;
  }
}

/* Expand at md breakpoint */
@media (min-width: 768px) {
  .navbar-expand-md {
    flex-wrap: nowrap;
    justify-content: flex-start;
  }
  
  .navbar-expand-md .navbar-nav {
    flex-direction: row;
  }
  
  .navbar-expand-md .navbar-nav .dropdown-menu {
    position: absolute;
  }
  
  .navbar-expand-md .navbar-nav .nav-link {
    padding-right: var(--spacing-2);
    padding-left: var(--spacing-2);
  }
  
  .navbar-expand-md .navbar-collapse {
    display: flex !important;
    flex-basis: auto;
  }
  
  .navbar-expand-md .navbar-toggler {
    display: none;
  }
}

/* =========================================================================
   Navbar Utilities
   ========================================================================= */

/* Auto margin utilities for navbar */
.me-auto {
  margin-right: auto !important;
}

.ms-auto {
  margin-left: auto !important;
}

/* =========================================================================
   Fixed & Sticky Navbar
   ========================================================================= */

.fixed-top {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: var(--z-fixed);
}

.fixed-bottom {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: var(--z-fixed);
}

.sticky-top {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

/* =========================================================================
   Nav Tabs & Pills
   ========================================================================= */

.nav {
  display: flex;
  flex-wrap: wrap;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

.nav-tabs {
  border-bottom: 1px solid var(--border-color);
}

.nav-tabs .nav-link {
  margin-bottom: -1px;
  background: none;
  border: 1px solid transparent;
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
}

.nav-tabs .nav-link:hover,
.nav-tabs .nav-link:focus {
  border-color: var(--border-color) var(--border-color) transparent;
  isolation: isolate;
}

.nav-tabs .nav-link.active,
.nav-tabs .nav-item.show .nav-link {
  color: var(--text-primary);
  background-color: var(--color-white);
  border-color: var(--border-color) var(--border-color) var(--color-white);
}

.nav-pills .nav-link {
  background: none;
  border: 0;
  border-radius: var(--radius-md);
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
  color: var(--color-white);
  background-color: var(--color-primary);
}

/* =========================================================================
   Nav Fill & Justified
   ========================================================================= */

.nav-fill > .nav-link,
.nav-fill .nav-item {
  flex: 1 1 auto;
  text-align: center;
}

.nav-justified > .nav-link,
.nav-justified .nav-item {
  flex-basis: 0;
  flex-grow: 1;
  text-align: center;
}

/* =========================================================================
   Sidebar Navigation
   ========================================================================= */

.sidebar-nav {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-3) 0;
}

.sidebar-nav .nav-link {
  padding: var(--spacing-2) var(--spacing-3);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-1);
}

.sidebar-nav .nav-link:hover {
  background-color: var(--color-light);
  color: var(--text-primary);
}

.sidebar-nav .nav-link.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.sidebar-nav .nav-link i,
.sidebar-nav .nav-link svg {
  margin-right: var(--spacing-2);
  width: 1.25em;
}

/* =========================================================================
   BlocHost Specific Navigation Styles
   ========================================================================= */

/* Homepage Navigation */
.home-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-3) var(--spacing-4);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--border-color);
}

.home-nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.home-nav-logo-circle {
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.home-nav-logo-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  letter-spacing: var(--letter-spacing-tight);
}

.home-nav-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.home-nav-tagline {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-align: right;
  line-height: 1.4;
}

.home-nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.home-nav-link {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

.home-nav-link:hover {
  color: var(--text-primary);
}

/* Site Header Navigation (Minimal) */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  z-index: var(--z-fixed);
  padding: 0 var(--spacing-4);
  height: 56px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.site-header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1024px;
  margin: 0 auto;
}

.site-name-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-tight);
  line-height: 1.2;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
}

.site-name-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.site-logo {
  max-height: 28px;
  max-width: 180px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-4);
  align-items: center;
}

/* Responsive Navigation */
@media (max-width: 768px) {
  .home-nav {
    flex-direction: column;
    gap: var(--spacing-4);
    padding: var(--spacing-3);
  }

  .home-nav-right {
    flex-direction: column;
    gap: var(--spacing-3);
    width: 100%;
  }

  .home-nav-tagline {
    text-align: center;
  }

  .home-nav-links {
    width: 100%;
    justify-content: center;
  }

  .site-header {
    padding: 0 16px;
  }

  .site-nav {
    display: none;
  }

  .menu-button {
    display: flex;
  }
}