:root {
	--bg: #ffffff;
	--ink: #1f1f1f;
	--muted: #5f6368;
	--line: #dadce0;
	--line-hi: #bdc1c6;
	--surface: #f1f3f4;
	--surface-hover: #e4e7e9;
	--accent: #1a73e8;
	--accent-hi: #1b66c9;
	--accent-soft: #e8f0fe;
	--danger: #d93025;
	--ease: cubic-bezier(0.2, 0, 0, 1);
	--font: 'Google Sans', 'Product Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

* {
	box-sizing: border-box;
}

html,
body {
	min-height: 100%;
}

body {
	margin: 0;
	display: grid;
	grid-template-rows: auto 1fr;
	min-height: 100dvh;
	color: var(--ink);
	font-family: var(--font);
	background-color: var(--bg);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	/* Faint dot field keeps the large empty canvas from feeling unfinished. */
	background-image: radial-gradient(circle at 1px 1px, rgb(31 31 31 / 0.055) 1px, transparent 0);
	background-size: 26px 26px;
}

/* ------------------------------------------------------------- top bar -- */

.topbar {
	padding: 18px clamp(16px, 5vw, 40px);
}

.brand {
	display: inline-flex;
	gap: 9px;
	align-items: center;
	padding: 6px 8px;
	margin-left: -8px;
	font-size: 1.25rem;
	letter-spacing: -0.015em;
	color: var(--ink);
	text-decoration: none;
	border-radius: 10px;
	transition-property: background-color;
	transition-duration: 0.18s;
}

.brand:hover {
	background-color: var(--surface);
}

.brand img {
	border-radius: 50%;
}

/* ---------------------------------------------------------------- hero -- */

.hero {
	display: grid;
	align-content: center;
	width: 100%;
	max-width: 680px;
	margin: 0 auto;
	padding: clamp(20px, 6vh, 64px) clamp(16px, 5vw, 40px) clamp(40px, 10vh, 96px);
	animation: rise 0.5s var(--ease) both;
}

h1 {
	margin: 0;
	font-size: clamp(2rem, 6.2vw, 3.25rem);
	font-weight: 400;
	line-height: 1.08;
	letter-spacing: -0.03em;
	text-wrap: balance;
}

.lede {
	margin: 16px 0 0;
	font-size: clamp(1rem, 2.4vw, 1.1875rem);
	line-height: 1.5;
	color: var(--muted);
	text-wrap: pretty;
	animation: rise 0.5s var(--ease) 0.06s both;
}

.actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 14px 20px;
	margin-top: 32px;
	animation: rise 0.5s var(--ease) 0.12s both;
}

#join {
	display: flex;
	align-items: center;
	gap: 8px;
	flex: 1 1 320px;
}

/* ------------------------------------------------------------- buttons -- */

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 9px;
	height: 48px;
	padding: 0 22px;
	font: inherit;
	font-size: 0.9375rem;
	white-space: nowrap;
	cursor: pointer;
	border: none;
	border-radius: 24px;
	transition-property: background-color, color, box-shadow, scale;
	transition-duration: 0.18s;
	transition-timing-function: var(--ease);
}

.btn:active {
	scale: 0.96;
}

.btn:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

.btn-primary {
	color: #fff;
	background-color: var(--accent);
	box-shadow:
		0 1px 2px rgb(26 115 232 / 0.3),
		0 2px 8px rgb(26 115 232 / 0.18);
}

.btn-primary:hover {
	background-color: var(--accent-hi);
	box-shadow:
		0 1px 2px rgb(26 115 232 / 0.34),
		0 4px 14px rgb(26 115 232 / 0.26);
}

.btn-ghost {
	color: var(--accent);
	background-color: transparent;
}

.btn-ghost:hover {
	background-color: var(--accent-soft);
}

/* --------------------------------------------------------------- field -- */

.field {
	position: relative;
	display: flex;
	align-items: center;
	flex: 1 1 auto;
	min-width: 0;
}

.field .icon {
	position: absolute;
	left: 14px;
	pointer-events: none;
	color: var(--muted);
	transition-property: color;
	transition-duration: 0.18s;
}

.field:focus-within .icon {
	color: var(--accent);
}

input[type='text'] {
	width: 100%;
	height: 48px;
	padding: 0 16px 0 46px;
	font: inherit;
	font-size: 0.9375rem;
	color: var(--ink);
	background-color: transparent;
	border: 1px solid var(--line);
	border-radius: 24px;
	transition-property: border-color, box-shadow;
	transition-duration: 0.18s;
	transition-timing-function: var(--ease);
}

input[type='text']::placeholder {
	color: var(--muted);
}

input[type='text']:hover {
	border-color: var(--line-hi);
}

input[type='text']:focus {
	outline: none;
	border-color: var(--accent);
	box-shadow: 0 0 0 3px rgb(26 115 232 / 0.16);
}

input[type='text'][aria-invalid='true'] {
	border-color: var(--danger);
}

input[type='text'][aria-invalid='true']:focus {
	box-shadow: 0 0 0 3px rgb(217 48 37 / 0.16);
}

/* --------------------------------------------------------------- notes -- */

.hint {
	margin: 14px 0 0;
	min-height: 1.25rem;
	font-size: 0.875rem;
	color: var(--danger);
	text-wrap: pretty;
}

.linkish {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	margin: 4px 0 0;
	padding: 8px 12px 8px 10px;
	font: inherit;
	font-size: 0.875rem;
	color: var(--muted);
	cursor: pointer;
	border: none;
	border-radius: 999px;
	background-color: transparent;
	animation: rise 0.5s var(--ease) 0.14s both;
	transition-property: color, background-color;
	transition-duration: 0.16s;
	transition-timing-function: var(--ease);
}

.linkish:hover {
	color: var(--ink);
	background-color: var(--surface);
}

.linkish:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

.linkish .icon {
	width: 18px;
	height: 18px;
	-webkit-mask-size: 18px 18px;
	mask-size: 18px 18px;
}

.note {
	margin: 18px 0 0;
	font-size: 0.8125rem;
	color: var(--muted);
	animation: rise 0.5s var(--ease) 0.18s both;
}

/* --------------------------------------------------------------- icons -- */

.icon {
	display: block;
	width: 22px;
	height: 22px;
	flex: none;
	background-color: currentColor;
	-webkit-mask: var(--icon) center / 22px 22px no-repeat;
	mask: var(--icon) center / 22px 22px no-repeat;
}

.icon-add {
	--icon: url('images/video_add.svg');
}

.icon-link {
	--icon: url('images/link.svg');
}

.icon-settings {
	--icon: url('images/settings.svg');
}

/* ------------------------------------------------------ settings dialog -- */

/* The dialog ships dark for the call page; the lobby is light. */
.sx {
	--sx-panel: #ffffff;
	--sx-inset: var(--surface);
	--sx-text: var(--ink);
	--sx-muted: var(--muted);
	--sx-line: var(--line);
	--sx-line-hi: var(--line-hi);
	--sx-accent: var(--accent);
	--sx-danger: var(--danger);
	--sx-caret: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 -960 960 960' fill='%235f6368'%3E%3Cpath d='M480-360 280-560h400L480-360Z'/%3E%3C/svg%3E");

	box-shadow:
		0 0 0 1px rgb(31 31 31 / 0.08),
		0 24px 64px rgb(31 31 31 / 0.22);
}

.sx-preview {
	box-shadow: inset 0 0 0 1px rgb(31 31 31 / 0.1);
}

/* ---------------------------------------------------------- responsive -- */

@media (max-width: 560px) {
	.actions {
		gap: 12px;
	}

	#new,
	#new .btn {
		width: 100%;
	}

	#join {
		flex: 1 1 100%;
	}
}

@keyframes rise {
	from {
		opacity: 0;
		translate: 0 10px;
	}
}

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}