.app {
  min-height: 100vh;
  background: var(--bg-primary);
}

.app-layout {
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .app-layout {
    grid-template-columns: 240px 1fr;
  }
}

@media (max-width: 768px) {
  .app-layout {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }
}

.top-nav {
  display: none;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

@media (max-width: 768px) {
  .top-nav {
    display: block;
  }
}

.layout-mode-topnav .app-layout {
  grid-template-columns: 1fr;
  max-width: 1600px;
  margin: 0 auto;
  height: auto;
  overflow: visible;
}

.layout-mode-topnav .top-nav {
  display: block;
}

.layout-mode-topnav .main-content {
  height: auto;
  overflow: visible;
}

.layout-mode-topnav .main-content > * {
  max-width: 1200px;
  margin: 0 auto;
}

.top-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.top-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.top-nav-logo svg {
  width: 26px;
  height: 26px;
  transition: color 0.2s;
  color: var(--accent);
}

.top-nav-logo:hover svg {
  color: var(--accent);
}

.top-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.top-nav-link {
  padding: 8px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.15s;
}

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

.top-nav-link.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.top-nav-link.extension-link {
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-nav-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
  text-decoration: none;
}

.top-nav-icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.notif-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid var(--bg-primary);
}

.top-nav-new-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--accent);
  color: var(--bg-primary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
}

.top-nav-new-btn:hover {
  background: var(--accent-hover);
}

.top-nav-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: none;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  transition: opacity 0.15s;
}

.top-nav-avatar:hover {
  opacity: 0.85;
}

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

.top-nav-mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
}

.top-nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  min-width: 200px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 6px;
  box-shadow: var(--shadow-lg);
  z-index: 200;
}

.dropdown-right {
  right: 0;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}

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

.dropdown-item.danger:hover {
  background: rgba(217, 119, 102, 0.12);
  color: var(--error);
}

.dropdown-external {
  margin-left: auto;
  opacity: 0.4;
}

.tangled-icon-wrapper {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tangled-icon-wrapper img {
  width: 16px;
  height: 16px;
  filter: grayscale(100%) brightness(1.5);
  opacity: 0.6;
  transition: all 0.15s;
}

.dropdown-item:hover .tangled-icon-wrapper img {
  opacity: 0.9;
}

[data-theme="light"] .tangled-icon-wrapper img {
  filter: grayscale(100%) brightness(0) invert(0.35);
  opacity: 1;
}

[data-theme="light"] .dropdown-item:hover .tangled-icon-wrapper img {
  filter: grayscale(100%) brightness(0) invert(0.1);
  opacity: 1;
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 0;
}

.dropdown-user-info {
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dropdown-user-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.dropdown-user-handle {
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

.main-content {
  width: 100%;
  padding: 0;
  overflow-y: auto;
  height: 100%;
  scrollbar-width: thin;
  scrollbar-color: var(--bg-hover) transparent;
}

.main-content > * {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 32px 80px;
}

.main-content::-webkit-scrollbar {
  width: 8px;
}

.main-content::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

.main-content::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: var(--radius-full);
}

.main-content::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
}

.mobile-menu-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.15s;
}

.mobile-menu-link:hover,
.mobile-menu-link.active {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.mobile-menu-link.active {
  color: var(--accent);
}

.mobile-menu-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 0;
}

.notification-badge {
  background: var(--accent);
  color: var(--bg-primary);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  margin-left: auto;
}

.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
  z-index: 100;
}

.mobile-bottom-nav {
  display: none;
  justify-content: space-around;
  align-items: center;
}

.mobile-bottom-nav-item {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 0;
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 0.65rem;
  font-weight: 500;
  transition: color 0.15s;
  min-width: 0;
}

.mobile-bottom-nav-item.active {
  color: var(--accent);
}

.mobile-bottom-nav-item:active {
  transform: scale(0.95);
}

.mobile-bottom-nav-new {
  padding: 6px 0;
}

.mobile-nav-new-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: var(--bg-primary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
}

.mobile-nav-avatar {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.ios-shortcut-banner {
  display: none;
  position: relative;
  padding: 20px;
  margin-bottom: 12px;
  text-align: center;
}

.ios-shortcut-banner-close {
  position: absolute;
  top: 8px;
  right: 8px;
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
  transition: opacity 0.15s;
}

.ios-shortcut-banner-close:hover {
  opacity: 1;
}

.ios-shortcut-banner-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.ios-shortcut-banner-icon {
  display: none;
}

.ios-shortcut-banner-text {
  text-align: center;
}

.ios-shortcut-banner-text strong {
  display: none;
}

.ios-shortcut-banner-text p {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin: 0;
  line-height: 1.4;
}

.ios-shortcut-banner-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 100px;
  text-decoration: none;
  transition: all 0.15s;
}

.ios-shortcut-banner-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .ios-shortcut-banner {
    display: block;
  }
}

@media (max-width: 768px) {
  .top-nav {
    display: none;
  }

  .mobile-bottom-nav {
    display: flex;
  }

  .main-content {
    padding: 16px 12px 100px;
  }

  .main-content > * {
    padding: 0;
  }

  .feed-container {
    border-radius: var(--radius-md);
    padding: 4px;
  }
}

@media (max-width: 480px) {
  .main-content {
    padding: 16px 12px 100px;
  }

  .page-title {
    font-size: 1.25rem;
  }

  .page-description {
    font-size: 0.85rem;
  }
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 150;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  animation: fadeIn 0.15s ease-out;
}

.mobile-nav-menu {
  position: fixed;
  bottom: calc(70px + env(safe-area-inset-bottom));
  right: 12px;
  width: 250px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 6px;
  z-index: 151;
  box-shadow: var(--shadow-2xl);
  animation: mobileMenuSlide 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

@keyframes mobileMenuSlide {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.mobile-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.1s;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.mobile-menu-item:hover,
.mobile-menu-item:active {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.mobile-menu-item svg {
  opacity: 0.8;
}

.mobile-menu-item.active {
  background: var(--bg-tertiary);
  color: var(--accent);
}

.mobile-menu-item.danger {
  color: var(--error);
}

.mobile-menu-item.danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

.mobile-menu-profile-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  margin-bottom: 6px;
  text-decoration: none;
  border: 1px solid transparent;
}

.mobile-menu-profile-card:active {
  background: var(--bg-hover);
  transform: scale(0.98);
}

.mobile-menu-badge {
  margin-left: auto;
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
}