/**
 * Centi Theme — assets/css/base.css
 *
 * Typography và element styles cơ bản.
 * Phụ thuộc: tokens.css, reset.css
 *
 * @package CentiTheme
 */

/* -------------------------------------------------------------------------
 * Base
 * ---------------------------------------------------------------------- */

html {
	font-size: 16px;
	scroll-behavior: smooth;
}

body {
	font-family: var(--font-sans);
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-normal);
	line-height: var(--line-height-body);
	color: var(--color-text);
	background-color: var(--color-bg);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

/* -------------------------------------------------------------------------
 * Typography — Headings
 * ---------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
	font-weight: var(--font-weight-bold);
	line-height: var(--line-height-heading);
	color: var(--color-text);
	margin-top: 0;
	margin-bottom: var(--space-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

@media (max-width: 767px) {
	h1 { font-size: var(--font-size-3xl); }
	h2 { font-size: var(--font-size-2xl); }
	h3 { font-size: var(--font-size-xl); }
}

/* -------------------------------------------------------------------------
 * Typography — Body
 * ---------------------------------------------------------------------- */

p {
	margin-top: 0;
	margin-bottom: var(--space-4);
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color var(--transition-fast);
}

a:hover,
a:focus {
	color: var(--color-primary-dark);
	text-decoration: underline;
}

strong, b { font-weight: var(--font-weight-bold); }
em, i     { font-style: italic; }

small { font-size: var(--font-size-sm); }

/* -------------------------------------------------------------------------
 * Lists
 * ---------------------------------------------------------------------- */

ul, ol {
	margin-top: 0;
	margin-bottom: var(--space-4);
	padding-left: var(--space-6);
}

li { margin-bottom: var(--space-1); }

/* Xóa list style khi không cần */
.list-reset {
	list-style: none;
	padding-left: 0;
	margin-bottom: 0;
}

/* -------------------------------------------------------------------------
 * Images & Media
 * ---------------------------------------------------------------------- */

img, svg, video {
	max-width: 100%;
	height: auto;
	display: block;
}

figure {
	margin: 0 0 var(--space-6);
}

figcaption {
	font-size: var(--font-size-sm);
	color: var(--color-text-muted);
	margin-top: var(--space-2);
	text-align: center;
}

/* -------------------------------------------------------------------------
 * Code
 * ---------------------------------------------------------------------- */

code, kbd, samp, pre {
	font-family: var(--font-mono);
}

code {
	font-size: 0.875em;
	background-color: var(--color-bg-secondary);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	padding: 0.125em 0.375em;
	color: #d63384;
}

pre {
	background-color: #1e293b;
	color: #e2e8f0;
	padding: var(--space-4) var(--space-6);
	border-radius: var(--radius-md);
	overflow-x: auto;
	margin-bottom: var(--space-6);
	font-size: var(--font-size-sm);
	line-height: 1.7;
}

pre code {
	background: none;
	border: none;
	padding: 0;
	color: inherit;
	font-size: inherit;
}

/* -------------------------------------------------------------------------
 * Tables
 * ---------------------------------------------------------------------- */

table {
	width: 100%;
	border-collapse: collapse;
	margin-bottom: var(--space-6);
	font-size: var(--font-size-sm);
}

th, td {
	padding: var(--space-3) var(--space-4);
	text-align: left;
	border-bottom: 1px solid var(--color-border);
}

th {
	font-weight: var(--font-weight-semibold);
	background-color: var(--color-bg-secondary);
}

tr:last-child td {
	border-bottom: none;
}

/* -------------------------------------------------------------------------
 * Forms
 * ---------------------------------------------------------------------- */

input[type="text"],
input[type="email"],
input[type="url"],
input[type="search"],
input[type="number"],
input[type="password"],
textarea,
select {
	display: block;
	width: 100%;
	padding: var(--space-2) var(--space-3);
	font-family: var(--font-sans);
	font-size: var(--font-size-base);
	line-height: var(--line-height-body);
	color: var(--color-text);
	background-color: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
	appearance: none;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="search"]:focus,
input[type="number"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
	outline: none;
	border-color: var(--color-primary);
	box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea {
	resize: vertical;
	min-height: 120px;
}

label {
	display: block;
	font-weight: var(--font-weight-medium);
	margin-bottom: var(--space-1);
	font-size: var(--font-size-sm);
}

/* -------------------------------------------------------------------------
 * Buttons
 * ---------------------------------------------------------------------- */

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	padding: var(--space-2) var(--space-6);
	font-family: var(--font-sans);
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-semibold);
	line-height: 1.5;
	text-decoration: none;
	border: 2px solid transparent;
	border-radius: var(--radius-md);
	cursor: pointer;
	transition: background-color var(--transition-fast),
	            border-color var(--transition-fast),
	            color var(--transition-fast),
	            box-shadow var(--transition-fast);
	white-space: nowrap;
}

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

.btn--primary {
	background-color: var(--color-primary);
	border-color: var(--color-primary);
	color: #fff;
}

.btn--primary:hover,
.btn--primary:focus {
	background-color: var(--color-primary-dark);
	border-color: var(--color-primary-dark);
	color: #fff;
	text-decoration: none;
}

.btn--outline {
	background-color: transparent;
	border-color: var(--color-primary);
	color: var(--color-primary);
}

.btn--outline:hover {
	background-color: var(--color-primary);
	color: #fff;
	text-decoration: none;
}

.btn--sm {
	padding: var(--space-1) var(--space-4);
	font-size: var(--font-size-sm);
}

/* -------------------------------------------------------------------------
 * Horizontal rule
 * ---------------------------------------------------------------------- */

hr {
	border: none;
	border-top: 1px solid var(--color-border);
	margin: var(--space-8) 0;
}

/* -------------------------------------------------------------------------
 * Blockquote
 * ---------------------------------------------------------------------- */

blockquote {
	border-left: 4px solid var(--color-primary);
	padding: var(--space-4) var(--space-6);
	margin: 0 0 var(--space-6);
	background-color: var(--color-bg-secondary);
	border-radius: 0 var(--radius-md) var(--radius-md) 0;
	font-style: italic;
	color: var(--color-text-muted);
}

blockquote cite {
	display: block;
	margin-top: var(--space-2);
	font-size: var(--font-size-sm);
	font-style: normal;
	font-weight: var(--font-weight-medium);
	color: var(--color-text);
}

/* -------------------------------------------------------------------------
 * Utility
 * ---------------------------------------------------------------------- */

.sr-only,
.screen-reader-text {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
}

.text-muted  { color: var(--color-text-muted); }
.text-sm     { font-size: var(--font-size-sm); }
.text-center { text-align: center; }