/* ==========================================================================
   MOBILE RESPONSIVE STYLES
   Mobile-first approach - Only affects mobile devices, desktop unchanged
   ========================================================================== */

/* ==========================================================================
   MOBILE SIDEBAR TRANSFORMATION
   Transform sidebar into bottom navigation bar on mobile
   ========================================================================== */

@media (max-width: 768px) {
  /* Hide desktop sidebar completely on mobile */
  .sidebar {
    display: none;
  }

  /* Remove sidebar margin from main content on mobile */
  .main-content {
    margin-left: 0;
    padding-top: calc(60px + env(safe-area-inset-top, 0)); /* Add top padding for top bar + safe area */
    padding-bottom: 80px; /* Add bottom padding for bottom nav */
  }

  /* Mobile Top Bar */
  .mobile-top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--color-surface-elevated);
    border-bottom: var(--border-width-thin) solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4);
    z-index: var(--z-fixed);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding-top: env(safe-area-inset-top, 0);
  }

  /* Dark theme top bar */
  :root[data-theme='dark'] .mobile-top-bar {
    background: var(--color-surface-elevated);
    border-bottom-color: var(--color-border-dark);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  }

  /* Mobile Top Menu Button */
  .mobile-top-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-base);
    background: transparent;
    border: var(--border-width-thin) solid var(--color-border-light);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .mobile-top-menu-btn:hover,
  .mobile-top-menu-btn:active {
    background: var(--color-gray-100);
    border-color: var(--color-border-medium);
  }

  :root[data-theme='dark'] .mobile-top-menu-btn:hover,
  :root[data-theme='dark'] .mobile-top-menu-btn:active {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-border-dark);
  }

  .mobile-top-menu-btn i {
    font-size: 18px;
  }

  /* Mobile Top User Info */
  .mobile-top-user {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }

  .mobile-top-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-full);
    overflow: hidden;
    border: 2px solid var(--color-border-light);
    transition: var(--transition-base);
  }

  .mobile-top-user-avatar:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
  }

  .mobile-top-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .mobile-top-user-email {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* Bottom Navigation Bar */
  .mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--color-surface-elevated);
    border-top: var(--border-width-thin) solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: var(--z-fixed);
    backdrop-filter: blur(20px);
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.08);
    padding: 0 var(--space-2);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  /* Dark theme bottom nav */
  :root[data-theme='dark'] .mobile-bottom-nav {
    background: var(--color-surface-elevated);
    border-top-color: var(--color-border-dark);
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.3);
  }

  /* Mobile Nav Item */
  .mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2);
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    min-height: 60px;
    border-radius: var(--border-radius-base);
    margin: 0 var(--space-1);
  }

  .mobile-nav-item:active {
    transform: scale(0.95);
    background: var(--color-gray-100);
  }

  :root[data-theme='dark'] .mobile-nav-item:active {
    background: rgba(255, 255, 255, 0.05);
  }

  /* Mobile Nav Icon */
  .mobile-nav-icon {
    font-size: 22px;
    margin-bottom: 4px;
    transition: color 0.2s ease;
    position: relative;
  }

  /* Mobile Nav Label */
  .mobile-nav-label {
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.2s ease;
  }

  /* Active State */
  .mobile-nav-item.active {
    color: var(--color-primary);
  }

  .mobile-nav-item.active .mobile-nav-icon {
    color: var(--color-primary);
  }

  .mobile-nav-item.active .mobile-nav-label {
    color: var(--color-primary);
  }

  /* Count Badge for Mobile Nav */
  .mobile-nav-item .nav-count,
  .mobile-nav-item .favorites-count {
    position: absolute;
    top: 6px;
    right: 8px;
    background: transparent;
    color: var(--color-text-tertiary);
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    padding: 0;
    border-radius: 0;
    min-width: auto;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    box-shadow: none;
    transform: scale(1);
    transition: color 0.2s ease;
  }

  .mobile-nav-item.active .nav-count,
  .mobile-nav-item.active .favorites-count {
    color: var(--color-primary);
  }

  .mobile-nav-item:active .nav-count,
  .mobile-nav-item:active .favorites-count {
    transform: scale(1);
  }

  /* Mobile Sidebar Drawer */
  .mobile-sidebar-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    height: 100dvh;
    background: var(--color-surface-elevated);
    border-right: var(--border-width-thin) solid var(--color-border-light);
    z-index: calc(var(--z-fixed) + 10);
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.1);
  }

  :root[data-theme='dark'] .mobile-sidebar-drawer {
    background: var(--color-surface-elevated);
    border-right-color: var(--color-border-dark);
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.3);
  }

  .mobile-sidebar-drawer.is-open {
    transform: translateX(0);
  }

  /* Mobile Drawer Overlay */
  .mobile-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-fixed) + 9);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    backdrop-filter: blur(2px);
  }

  .mobile-drawer-overlay.is-visible {
    opacity: 1;
    visibility: visible;
  }

  /* Mobile Drawer Content */
  .mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: var(--border-width-thin) solid var(--color-border-light);
  }

  .mobile-drawer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .mobile-drawer-logo svg {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
  }

  :root[data-theme='dark'] .mobile-drawer-logo svg {
    color: var(--color-white);
  }

  .mobile-drawer-logo h1 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin: 0;
  }

  .mobile-drawer-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-base);
    background: transparent;
    border: var(--border-width-thin) solid var(--color-border-light);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .mobile-drawer-close:hover {
    background: var(--color-gray-100);
    color: var(--color-text-primary);
  }

  :root[data-theme='dark'] .mobile-drawer-close:hover {
    background: rgba(255, 255, 255, 0.05);
  }

  /* Mobile Drawer Nav Items */
  .mobile-drawer-nav {
    flex: 1;
    padding: var(--space-2) 0;
  }

  .mobile-drawer-section {
    margin-bottom: var(--space-6);
  }

  .mobile-drawer-section-title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-2) var(--space-4);
    margin-bottom: var(--space-2);
  }

  .mobile-drawer-nav-item {
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-1);
    border-radius: var(--border-radius-lg);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    transition: all 0.2s ease;
  }

  .mobile-drawer-nav-item:hover {
    background: var(--color-gray-100);
    color: var(--color-text-primary);
  }

  :root[data-theme='dark'] .mobile-drawer-nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
  }

  .mobile-drawer-nav-item.active {
    background: var(--color-primary-50);
    color: var(--color-primary-700);
  }

  :root[data-theme='dark'] .mobile-drawer-nav-item.active {
    background: var(--color-primary-light);
    color: var(--color-primary-400);
  }

  .mobile-drawer-nav-icon {
    margin-right: var(--space-3);
    font-size: 18px;
    width: 20px;
    text-align: center;
  }

  .mobile-drawer-nav-item .nav-count,
  .mobile-drawer-nav-item .favorites-count {
    margin-left: auto;
    background: transparent;
    color: var(--color-text-tertiary);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    padding: 0;
    border-radius: 0;
    min-width: auto;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
  }

  .mobile-drawer-nav-item.active .nav-count,
  .mobile-drawer-nav-item.active .favorites-count {
    color: var(--color-primary);
  }

  /* Mobile Drawer User Info */
  .mobile-drawer-user {
    padding-top: var(--space-4);
    border-top: var(--border-width-thin) solid var(--color-border-light);
  }

  .mobile-drawer-user-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-3);
  }

  .mobile-drawer-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin-right: var(--space-3);
    border: 2px solid var(--color-border-light);
  }

  .mobile-drawer-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .mobile-drawer-user-email {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
  }

  /* Mobile Drawer Logout Button */
  .mobile-drawer-logout-btn {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border-radius: var(--border-radius-base);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-2);
    margin-top: var(--space-3);
    border: var(--border-width-thin) solid var(--color-border-light);
  }

  .mobile-drawer-logout-btn:hover {
    background: var(--color-error-light);
    border-color: var(--color-error);
    color: var(--color-error);
  }

  :root[data-theme='dark'] .mobile-drawer-logout-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--color-error);
    color: var(--color-error);
  }

  .mobile-drawer-logout-btn i {
    font-size: var(--font-size-xs);
  }

  /* Content Header Adjustments */
  .content-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-6) var(--space-4) var(--space-4) var(--space-4); /* More top padding for mobile top bar */
    margin-bottom: var(--space-4);
    margin-top: var(--space-2); /* Additional top margin */
  }

  /* Hide headline and subtitle on mobile */
  .content-header .header-text {
    display: none;
  }

  .content-header h2 {
    font-size: var(--font-size-xl);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
  }

  /* Hide count badge on mobile */
  .content-header .channels-header-count {
    display: none !important;
  }

  .header-actions {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }

  .header-actions button {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    padding: var(--space-3) var(--space-4);
  }

  .header-actions button span {
    display: inline;
  }

  .header-actions button i {
    margin: 0;
  }

  /* Grid Adjustments */
  .channels-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: 0 var(--space-4) var(--space-10) var(--space-4); /* Extra bottom padding for bottom nav */
    margin-bottom: var(--space-4); /* Additional margin for spacing */
  }

  .outliers-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: 0 var(--space-4) var(--space-10) var(--space-4); /* Extra bottom padding for bottom nav */
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--space-4); /* Additional margin for spacing */
    width: 100%;
    box-sizing: border-box;
    justify-items: center; /* Center grid items within their cells */
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  /* Override grid display for mobile to use flexbox for better centering */
  .outliers-grid > * {
    width: 100%;
    max-width: 100%;
  }

  /* Controls Adjustments */
  .channels-controls,
  .outliers-controls {
    padding: 0 var(--space-4);
    margin-bottom: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }

  .search-container {
    width: 100%;
    margin-bottom: 0;
  }

  .sort-menu-container,
  .filter-menu-container {
    width: 100%;
  }

  .sort-menu-btn,
  .filter-menu-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
  }

  .sort-menu-btn span,
  .filter-menu-btn span {
    display: inline;
  }
}

/* Smaller mobile devices */
@media (max-width: 480px) {
  .mobile-bottom-nav {
    height: 65px;
  }

  .mobile-nav-icon {
    font-size: 20px;
  }

  .mobile-nav-label {
    font-size: 9px;
  }

  .mobile-nav-item {
    min-height: 55px;
    padding: var(--space-1);
  }

  .main-content {
    padding-top: calc(60px + env(safe-area-inset-top, 0)); /* Add top padding for top bar + safe area */
    padding-bottom: 75px;
  }

  .content-header {
    padding: var(--space-6) var(--space-3) var(--space-3) var(--space-3); /* More top padding for mobile top bar */
    margin-top: var(--space-2); /* Additional top margin */
  }

  /* Hide headline and subtitle on mobile */
  .content-header .header-text {
    display: none;
  }

  .content-header h2 {
    font-size: var(--font-size-lg);
  }

  .channels-grid,
  .outliers-grid {
    padding: 0 var(--space-3) var(--space-10) var(--space-3); /* Extra bottom padding for bottom nav */
    gap: var(--space-3);
    margin-bottom: var(--space-4); /* Additional margin for spacing */
  }

  .outliers-grid {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  /* Ensure outlier cards are centered */
  .outliers-grid > * {
    width: 100%;
    max-width: 100%;
  }

  .channels-controls,
  .outliers-controls {
    padding: 0 var(--space-3);
  }
}

/* Hide mobile elements on desktop */
@media (min-width: 769px) {
  .mobile-top-bar,
  .mobile-bottom-nav,
  .mobile-sidebar-drawer,
  .mobile-drawer-overlay {
    display: none !important;
  }
}