:root {
  color-scheme: light;
  --vt-public-bg: oklch(0.975 0.008 96);
  --vt-public-surface: oklch(0.995 0.004 96);
  --vt-public-surface-alt: oklch(0.955 0.01 96);
  --vt-public-text: oklch(0.22 0.008 96);
  --vt-public-muted: oklch(0.50 0.012 96);
  --vt-public-border: oklch(0.88 0.01 96);
  --vt-public-accent: oklch(0.88 0.16 95);
  --vt-public-accent-strong: oklch(0.72 0.15 88);
  --vt-public-nav: color-mix(in oklch, var(--vt-public-surface) 84%, transparent);
  --vt-public-shadow: 0 18px 45px color-mix(in oklch, var(--vt-public-text) 11%, transparent);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --vt-public-bg: oklch(0.17 0.014 96);
  --vt-public-surface: oklch(0.225 0.014 96);
  --vt-public-surface-alt: oklch(0.27 0.016 96);
  --vt-public-text: oklch(0.94 0.008 96);
  --vt-public-muted: oklch(0.74 0.012 96);
  --vt-public-border: oklch(0.36 0.012 96);
  --vt-public-accent: oklch(0.88 0.16 95);
  --vt-public-accent-strong: oklch(0.78 0.15 88);
  --vt-public-nav: color-mix(in oklch, var(--vt-public-surface) 84%, transparent);
  --vt-public-shadow: 0 18px 45px color-mix(in oklch, black 36%, transparent);
}

html,
body {
  background: var(--vt-public-bg);
  color: var(--vt-public-text);
}

body,
nav,
main,
section,
footer,
article,
.modal-content,
#mobile-menu,
#postsContainer > div,
.faq-item,
.faq-button {
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

nav {
  background: var(--vt-public-nav) !important;
  border-color: var(--vt-public-border) !important;
}

footer,
.bg-white,
.bg-gray-50,
.bg-surface-alt,
.bg-gray-100,
#mobile-menu,
#postArticle,
.faq-item,
.faq-button {
  background-color: var(--vt-public-surface) !important;
  color: var(--vt-public-text) !important;
  border-color: var(--vt-public-border) !important;
}

.bg-surface-alt,
.hover\:bg-yellow-50:hover,
.hover\:bg-gray-50:hover,
#postsContainer > div:hover {
  background-color: var(--vt-public-surface-alt) !important;
}

.text-text,
.text-gray-900,
.text-gray-700,
.text-gray-600,
.hover\:text-black:hover,
.hover\:text-gray-900:hover,
h1,
h2,
h3 {
  color: var(--vt-public-text) !important;
}

.text-muted,
.text-gray-500,
.text-gray-400,
.prose,
#boardDesc,
#postContent {
  color: var(--vt-public-muted) !important;
}

.border,
.border-gray-100,
.border-gray-200,
.border-border {
  border-color: var(--vt-public-border) !important;
}

.shadow-sm,
.shadow-md,
.shadow-lg,
.shadow-xl {
  box-shadow: var(--vt-public-shadow) !important;
}

.text-primary,
.text-primary-dark,
.prose a,
#postsContainer .text-primary-dark {
  color: var(--vt-public-accent-strong) !important;
}

.bg-primary,
.bg-primary-dark,
.bg-yellow-100 {
  background-color: var(--vt-public-accent) !important;
  color: oklch(0.22 0.008 96) !important;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 86px;
  max-width: 112px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--vt-public-border);
  border-radius: 999px;
  background: var(--vt-public-surface-alt);
  color: var(--vt-public-text);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: color-mix(in oklch, var(--vt-public-accent-strong) 45%, var(--vt-public-border));
}

.theme-toggle-icon {
  display: inline-grid;
  place-items: center;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--vt-public-accent);
  color: oklch(0.22 0.008 96);
  font-size: 12px;
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--vt-public-text) 10%, transparent);
}

.theme-toggle-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.01em;
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--vt-public-accent-strong);
  outline-offset: 3px;
}

.theme-toggle-mobile {
  width: 100%;
  justify-content: center;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(4px);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  border-radius: 24px;
  background: var(--vt-public-surface);
  color: var(--vt-public-text);
  padding: 2.5rem;
  transform: translateY(20px);
  transition: transform 0.3s ease, background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  border: 1px solid color-mix(in oklch, var(--vt-public-border) 72%, transparent);
}

.modal-backdrop.active .modal-content {
  transform: translateY(0);
}

:root[data-theme="dark"] .mockup-ambient {
  background: radial-gradient(circle at 30% 22%, color-mix(in oklch, var(--vt-public-accent) 28%, transparent), transparent 34%), linear-gradient(135deg, oklch(0.30 0.018 96), oklch(0.18 0.014 96));
  border-color: var(--vt-public-border);
}

:root[data-theme="dark"] .window-frame,
:root[data-theme="dark"] .sidebar-content,
:root[data-theme="dark"] .window-titlebar,
:root[data-theme="dark"] .chat-window-content,
:root[data-theme="dark"] .message-input,
:root[data-theme="dark"] .friend-code-preview,
:root[data-theme="dark"] .preview-list-surface,
:root[data-theme="dark"] .tab-btn.active,
:root[data-theme="dark"] .preview-search-field,
:root[data-theme="dark"] .btn-light-small,
:root[data-theme="dark"] .chat-input-bar,
:root[data-theme="dark"] .message-input-wrap,
:root[data-theme="dark"] .modal-content {
  background: var(--vt-public-surface) !important;
  color: var(--vt-public-text) !important;
  border-color: var(--vt-public-border) !important;
}

:root[data-theme="dark"] .tab-btn,
:root[data-theme="dark"] .list-item,
:root[data-theme="dark"] .preview-search-btn,
:root[data-theme="dark"] .preview-add-btn,
:root[data-theme="dark"] .attachment-toggle-btn,
:root[data-theme="dark"] .bubble.theirs,
:root[data-theme="dark"] .image-preview-card {
  background: var(--vt-public-surface-alt) !important;
  color: var(--vt-public-text) !important;
  border-color: var(--vt-public-border) !important;
}

:root[data-theme="dark"] .chat-messages {
  background: linear-gradient(180deg, color-mix(in oklch, var(--vt-public-surface) 92%, black), color-mix(in oklch, var(--vt-public-surface-alt) 92%, black)) !important;
}

:root[data-theme="dark"] .window-title,
:root[data-theme="dark"] .friend-code-preview strong,
:root[data-theme="dark"] .list-name,
:root[data-theme="dark"] .image-preview-caption,
:root[data-theme="dark"] .message-input-icon-btn {
  color: var(--vt-public-text) !important;
}

:root[data-theme="dark"] .list-preview,
:root[data-theme="dark"] .message-avatar,
:root[data-theme="dark"] .chat-header-status,
:root[data-theme="dark"] .opacity-control-label {
  color: var(--vt-public-muted) !important;
}

:root[data-theme="dark"] .profile-avatar-surface,
:root[data-theme="dark"] .list-avatar-stack,
:root[data-theme="dark"] .chat-header-avatar,
:root[data-theme="dark"] .message-avatar,
:root[data-theme="dark"] .list-avatar-dot {
  background: color-mix(in oklch, var(--vt-public-surface-alt) 82%, var(--vt-public-accent) 18%) !important;
  border-color: var(--vt-public-border) !important;
}

:root[data-theme="dark"] .person-silhouette::before,
:root[data-theme="dark"] .person-silhouette::after {
  background: color-mix(in oklch, var(--vt-public-muted) 70%, var(--vt-public-surface)) !important;
}

:root[data-theme="dark"] .opacity-slider {
  accent-color: var(--vt-public-accent);
}

:root[data-theme="dark"] .bubble.mine,
:root[data-theme="dark"] .send-button {
  background: var(--vt-public-accent) !important;
  color: oklch(0.22 0.008 96) !important;
}