:root {
	--vai-bg: #000000;
	--vai-bg-soft: #2a2a2a;
	--vai-sidebar-width: 260px;
	--vai-sidebar: rgba(23, 23, 23, 0.55);
	--vai-topbar: rgba(31, 31, 31, 0.55);
	--vai-block: rgba(255, 255, 255, 0.08);
	--vai-glass-blur: 16px;
	--vai-glass-sat: 120%;
	--vai-border-alpha: 0.16;
	--vai-border-width: 1px;
	--vai-border: rgba(255, 255, 255, var(--vai-border-alpha));
	--vai-text: #ececec;
	--vai-text-dim: #b8b8b8;
	--vai-accent: #ffffff;
	--vai-font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
	--vai-font-size-base: 16px;
	--vai-bg-watermark-text: "[V]";
	--vai-bg-watermark-color: #facc15;
	--vai-bg-watermark-opacity: 0.16;
	--vai-bg-watermark-size: 58vw;
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	padding: 0;
	background: var(--vai-bg);
	color: var(--vai-text);
	font-family: var(--vai-font-family);
	font-size: var(--vai-font-size-base);
}

body.vai-theme-body {
	min-height: 100vh;
}

a {
	color: inherit;
	text-decoration: none;
}

.vai-app {
	position: relative;
	display: grid;
	grid-template-columns: var(--vai-sidebar-width) minmax(0, 1fr);
	min-height: 100vh;
	overflow: hidden;
	--vai-main-right-offset: 0px;
}

.vai-bg-wordmark {
	position: fixed;
	top: 0;
	left: var(--vai-sidebar-width);
	width: calc(100vw - var(--vai-sidebar-width));
	height: 100vh;
	display: grid;
	place-items: center;
	font-family: var(--vai-font-family);
	font-size: min(var(--vai-bg-watermark-size, 58vw), 860px);
	font-weight: 800;
	line-height: 1;
	letter-spacing: -0.02em;
	color: var(--vai-bg-watermark-color);
	opacity: var(--vai-bg-watermark-opacity);
	white-space: nowrap;
	text-shadow:
		0 0 24px color-mix(in srgb, var(--vai-bg-watermark-color) 65%, transparent),
		0 0 56px color-mix(in srgb, var(--vai-bg-watermark-color) 45%, transparent),
		0 0 110px color-mix(in srgb, var(--vai-bg-watermark-color) 28%, transparent);
	pointer-events: none;
	user-select: none;
	z-index: 0;
}

.vai-sidebar,
.vai-main {
	position: relative;
	z-index: 1;
}

.vai-sidebar {
	background: var(--vai-sidebar);
	backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	-webkit-backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	border: var(--vai-border-width) solid var(--vai-border);
	border-radius: 14px;
	margin: 10px 0 10px 10px;
	padding: 14px 12px;
	min-height: calc(100vh - 20px);
	display: flex;
	flex-direction: column;
	gap: 14px;
}

.vai-sidebar-head {
	display: flex;
	align-items: center;
	justify-content: flex-start;
	gap: 10px;
	padding: 8px 6px;
}

.vai-logo-mark {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	display: grid;
	place-items: center;
	background: #facc15;
	color: #121212;
	font-weight: 800;
	font-size: 13px;
}

.vai-sidebar-nav {
	flex: 1;
	overflow: auto;
}

.vai-left-menu-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: 3px;
}

.vai-left-menu-list li a {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 10px 8px;
	border-radius: 10px;
	font-size: 1.25rem;
	line-height: 1.35;
	color: #eaeaea;
}

.vai-left-menu-list li a:hover {
	background: rgba(255, 255, 255, 0.08);
}

.vai-sidebar-cta {
	padding: 14px 6px 4px;
	border-radius: 16px;
	background: var(--vai-block);
	border: var(--vai-border-width) solid var(--vai-border);
	backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	-webkit-backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
}

.vai-sidebar-cta h3 {
	font-size: 1.25rem;
	line-height: 1.35;
	margin: 0 0 10px;
}

.vai-sidebar-cta p {
	font-size: 1.25rem;
	line-height: 1.55;
	color: var(--vai-text-dim);
	margin: 0 0 14px;
}

.vai-sidebar-user {
	padding-top: 12px;
	display: grid;
	gap: 10px;
	border-radius: 14px;
	background: var(--vai-block);
	border: var(--vai-border-width) solid var(--vai-border);
	padding: 12px;
}

.vai-user-name {
	font-size: 1.25rem;
	font-weight: 600;
}

.vai-main {
	display: flex;
	flex-direction: column;
	min-width: 0;
}

.vai-app.has-right-ad {
	--vai-main-right-offset: 334px;
}

.vai-app.has-right-ad .vai-main {
	padding-right: 334px;
}

.vai-topbar {
	height: 68px;
	padding: 10px 18px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	position: sticky;
	top: 10px;
	z-index: 10;
	margin: 10px 12px 0;
	background: var(--vai-topbar);
	backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	-webkit-backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	border: var(--vai-border-width) solid var(--vai-border);
	border-radius: 14px;
}

.vai-app.has-right-ad .vai-topbar {
	margin-right: calc(12px - var(--vai-main-right-offset));
}

.vai-topbar-brand {
	font-size: 1.375rem;
	font-weight: 600;
}

.vai-topbar-actions {
	display: flex;
	gap: 10px;
	align-items: center;
}

.vai-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	height: 40px;
	padding: 0 18px;
	border-radius: 999px;
	font-size: 1.125rem;
	font-weight: 600;
	border: var(--vai-border-width) solid var(--vai-border);
}

.vai-btn-light {
	background: #fff;
	color: #1d1d1d;
	border-color: #fff;
}

.vai-btn-dark,
.vai-btn-ghost {
	background: rgba(255, 255, 255, 0.06);
	color: #f1f1f1;
	backdrop-filter: blur(var(--vai-glass-blur));
	-webkit-backdrop-filter: blur(var(--vai-glass-blur));
}

.vai-center {
	flex: 1;
	display: grid;
	place-content: center;
	padding: 24px;
	gap: 22px;
}

.vai-search-form {
	width: min(860px, calc(100vw - 740px));
	height: 72px;
	display: grid;
	grid-template-columns: 44px minmax(0, 1fr) auto;
	align-items: center;
	gap: 6px;
	padding: 8px;
	border-radius: 999px;
	border: var(--vai-border-width) solid var(--vai-border);
	background: var(--vai-block);
	backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	-webkit-backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
}

.vai-search-prefix {
	display: grid;
	place-items: center;
	font-size: 2rem;
	color: #d6d6d6;
}

.vai-search-form input {
	width: 100%;
	min-width: 0;
	height: 52px;
	padding: 0 10px;
	border: 0;
	outline: 0;
	background: transparent;
	color: #fff;
	font-size: 1.875rem;
	font-family: var(--vai-font-family);
}

.vai-search-form input::placeholder {
	color: #c4c4c4;
}

.vai-search-submit {
	height: 52px;
	min-width: 86px;
	padding: 0 16px;
	border-radius: 999px;
	border: var(--vai-border-width) solid var(--vai-border);
	background: rgba(255, 255, 255, 0.12);
	color: #fff;
	font-size: 1.875rem;
	font-weight: 700;
	font-family: var(--vai-font-family);
	cursor: pointer;
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
}

.vai-guest-footer {
	padding: 12px 24px 18px;
	text-align: center;
	color: #a8a8a8;
	font-size: 0.875rem;
}

.vai-right-ad-floating {
	position: fixed;
	right: 16px;
	top: 50%;
	transform: translateY(-50%);
	width: 300px;
	height: 600px;
	padding: 16px;
	border: var(--vai-border-width) dashed color-mix(in srgb, #facc15 70%, transparent);
	border-radius: 14px;
	background: var(--vai-block);
	backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	-webkit-backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 12;
	overflow: hidden;
}

.admin-bar .vai-right-ad-floating {
	top: calc(50% + 16px);
}

.vai-right-ad-floating > * {
	width: 100%;
	height: 100%;
}

.vai-right-ad-fallback {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 14px;
	text-align: center;
}

.vai-right-ad-line1 {
	color: #ffffff;
	font-size: 1.625rem;
	font-weight: 600;
	line-height: 1.35;
}

.vai-right-ad-line2 {
	color: #facc15;
	font-size: 2rem;
	font-weight: 800;
	line-height: 1.2;
}

.vai-member-main {
	height: 100vh;
	overflow: hidden;
}

.vai-member-chat-wrap {
	flex: 1;
	min-height: 0;
	display: grid;
	padding: 0;
}

.vai-member-chat-wrap .vai-chat-shell {
	height: calc(100vh - 68px);
	max-width: none;
	border: 0;
	border-radius: 0;
	background: transparent;
	backdrop-filter: none;
	-webkit-backdrop-filter: none;
	display: grid;
	grid-template-rows: minmax(0, 1fr) auto;
}

.vai-member-chat-wrap .vai-chat-log {
	padding: 22px clamp(18px, 4vw, 56px);
	max-height: none;
}

.vai-member-chat-wrap .vai-chat-form {
	position: sticky;
	bottom: 0;
	margin: 0 auto 16px;
	width: min(860px, calc(100% - 30px));
	border: var(--vai-border-width) solid var(--vai-border);
	border-radius: 30px;
	background: var(--vai-block);
	padding: 8px;
	grid-template-columns: minmax(0, 1fr) auto;
	backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
	-webkit-backdrop-filter: blur(var(--vai-glass-blur)) saturate(var(--vai-glass-sat));
}

.vai-member-chat-wrap .vai-chat-form input[type="text"] {
	height: 50px;
	border: 0;
	background: transparent;
	font-size: 1.6875rem;
}

.vai-member-chat-wrap .vai-chat-form button[type="submit"] {
	height: 50px;
	border-radius: 999px;
	padding: 0 18px;
	font-size: 1.5625rem;
}

.vai-content-wrap {
	max-width: 920px;
	margin: 0 auto;
	padding: 24px;
}

.vai-post-title {
	font-size: 2.5rem;
	margin: 0 0 16px;
}

.vai-post-content {
	font-size: 1.5rem;
	line-height: 1.7;
}

/* ChatGPT-like left menu icons */
.vai-left-menu-list li a::before {
	content: "◦";
	display: inline-block;
	width: 18px;
	text-align: center;
	opacity: 0.9;
}

.vai-left-menu-list li:nth-child(1) a::before {
	content: "✎";
}

.vai-left-menu-list li:nth-child(2) a::before {
	content: "⌕";
}

.vai-left-menu-list li:nth-child(3) a::before {
	content: "◉";
}

.vai-left-menu-list li:nth-child(4) a::before {
	content: "◌";
}

.vai-left-menu-list li:nth-child(5) a::before {
	content: "✦";
}

.vai-left-menu-list li:nth-child(6) a::before {
	content: "♥";
}

@media (max-width: 1400px) {
	.vai-app.has-right-ad {
		--vai-main-right-offset: 0px;
	}

	.vai-app.has-right-ad .vai-main {
		padding-right: 0;
	}

	.vai-right-ad-floating {
		display: none;
	}

	.vai-search-form {
		width: min(860px, calc(100vw - 380px));
	}
}

@media (max-width: 1200px) {
	.vai-left-menu-list li a,
	.vai-sidebar-cta h3,
	.vai-sidebar-cta p,
	.vai-btn,
	.vai-user-name {
		font-size: 1.125rem;
	}

	.vai-search-form input {
		font-size: 1.625rem;
	}

	.vai-search-prefix,
	.vai-search-submit {
		font-size: 1.625rem;
	}

	.vai-member-chat-wrap .vai-chat-form input[type="text"],
	.vai-member-chat-wrap .vai-chat-form button[type="submit"] {
		font-size: 1.375rem;
	}
}

@media (max-width: 980px) {
	.vai-app {
		grid-template-columns: 1fr;
	}

	.vai-sidebar {
		display: none;
	}

	.vai-search-form {
		width: min(860px, calc(100vw - 24px));
	}

	.vai-bg-wordmark {
		left: 0;
		width: 100vw;
	}
}