app.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');

:root {
	--font-family: 'Poppins', Arial, Helvetica, sans-serif;
	--font-family-text: 'Open Sans', Arial, Helvetica, sans-serif;
	--font-size: 16px;
	--border-radius: 10px;
	--scrollbar-bg: #FF9557;
	--scrollbar-thumb: #e6e6e6;
}

:root {	
    color-scheme: light;
	--bg-primary: #fff;	
	--text-primary: #232629;
    --accent-primary: #FF9557; /* #0249fe; */
    --placeholder: #717171;
    --logo: url('/logo/logo-light.png');
}

/* color mode from browser setting */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
		--bg-primary: #212529; /* #1E1E1E; #212529; */
        --text-primary: #fff;
        --accent-primary: #FF9557; /* #0249FE; */
        --placeholder: #717171;
		--code-border: #717171;
        --logo: url('/logo/logo-dark.png');
    }
}

/* color mode from html tag attribute */
[color-scheme='light'] {
    color-scheme: light;
	--bg-primary: #fff;	
	--text-primary: #212329;
    --accent-primary: #FF9557; /* #0249fe; */
    --placeholder: #717171;
	--logo: url('/logo/logo-light.png');
}

[color-scheme='dark'] {
    color-scheme: dark;
	--bg-primary: #212529; /* #1E1E1E; #212529; */
	--text-primary: #fff;
	--accent-primary: #FF9557; /* #0249FE; */
	--placeholder: #717171;
	--code-border: #717171;
	--logo: url('/logo/logo-dark.png');
}

html {
	display: block;
	font-size: var(--font-size);
	font-family: var(--font-family);
	background: var(--bg-primary);
	margin: 0;
	padding: 0px;
	height: 100vh;
	overflow-y: scroll;	
}

body {
	display: block;
	overflow: hidden;
	margin: 0;
	padding: 0px;	
	color: var(--text-primary);
	background: var(--bg-primary);
	transition: color 0.5s, background-color 0.5s;
	position: relative;	
}

p {
    font-family: var(--font-family-text);
}

img,
svg {
	display: inline-block;
	max-width: 100%;
}

iframe {
	color-scheme: light !important;
}

* {
	box-sizing: border-box;
	outline: 0px none transparent;
	text-decoration: none;
}

::before,
::after {
	box-sizing: border-box;
	content: none;
}

::placeholder {
	color: #aaa;
	font-size: 1rem;
	font-weight: 500;
}

::selection {
	background: #0e7aff;
	color: #fff;
}

.scrollbar-thin {	
	scrollbar-width: thin;
	scrollbar-color: var(--scrollbar-bg) var(--scrollbar-thumb);
}

.scrollbar-thin::-webkit-scrollbar {
	width: 8px;
	background: var(--scrollbar-bg);
}

.scrollbar-thin::-webkit-scrollbar-thumb {	
	background: var(--scrollbar-thumb);
}

#app {
	float: left;
	width: 100%;
	position: relative;
	min-height: 100vh;
	padding: 0px;
	margin: 0px;
}

.section {
	float: left;
	width: 100%;
	position: relative;
	min-height: 100vh;
	padding: 0px 20px;
	margin: 0px;
}

.nav-router {
    float: left;
    width: 100%;
    padding: 20px;
    box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.2);
}

.nav-router__link {
    float: left;
    padding: 10px;
    margin-right: 10px;
    color: var(--text-primary);
}

.nav-router__link--active {
    font-weight: 900;
    color: var(--accent-primary);
    border-bottom: 2px solid var(--accent-primary);
}

.nav-router__logo-link {
	float: left;
}

.nav-router__logo {
    float: left;
    height: 45px;    
    margin-right: 20px;
    content: var(--logo) !important;    
}