* {
	box-sizing: border-box;
}

html {
	font-size: 62.5%;
}

body {
	font-size: 1.6rem;
	font-family: var(--font-1);
	line-height: normal;
	width: 100vw;
	height: 100vh;
	background: var(--color-1);
}

/* ========== logo */
.logo .logo_img {
	width: 100px;
	height: auto;
}

.logo .cn__name {
	font-size: 1.2rem;
	text-align: center;
	color: var(--color-3);
	margin-top: -8px;
	letter-spacing: 2px;
}

/* ======== input */
input {
	padding-left: 10px;
	font-family: var(--font-1);
	font-size: 1.6rem;
	border-radius: 8px;
	border: none;
	outline: none;
	color: var(--color-1);
}

input::placeholder {
	font-family: var(--font-1);
	font-size: 1.6rem;
}

input[type="submit"] {
	cursor: pointer;
	background: var(--color-3);
	/* font-weight: 600; */
}

input[type="submit"]:hover {
	opacity: 0.95;
	text-shadow: 1px 0 0 currentColor;
}

/* ============== select option */
select {
	padding-left: 10px;
	font-family: var(--font-1);
	font-size: 1.6rem;
	border-radius: 8px;
	border: none;
	outline: none;
	color: var(--color-1);
}

/* =========== thẻ a */
a {
	text-underline-offset: 4px;
	color: var(--color-3);
}

a:hover {
	text-shadow: 1px 0 0 currentColor;
}

/* ============= btn */
.btn {
	font-family: var(--font-1);
	font-size: 1.6rem;
	cursor: pointer;
	border-radius: 5px;
	border: none;
	outline: none;
	color: var(--color-3);
	background: var(--color-2);
}
.btn:disabled {
	background: gray;
	cursor: default;
	color: var(--font-1);
}

.btn:disabled:hover {
	text-shadow: none;
	opacity: 1;
}

.btn:hover {
	text-shadow: 1px 0 0 currentColor;
	opacity: 0.95;
}

/* ============= btn giống a */
.btn_a {
	background: none;
	border: none;
	outline: none;
	font-family: var(--font-1);
	font-size: 1.6rem;
	color: var(--color-3);
	display: block;
	cursor: pointer;
}

.btn_a:hover {
	text-shadow: 1px 0 0 var(--color-3);
}

h2 {
	font-size: 2.5rem;
	font-weight: 600;
	color: var(--color-3);
}

h3 {
	font-size: 2rem;
	font-weight: 600;
	color: var(--color-3);
}

/* ========== table */
table {
	border-collapse: separate;
	border-spacing: 0 8px; /* 0 ngang, 5px dọc */
}

table td {
	color: var(--color-1);
}

table tr {
	padding-top: 5px;
}