/*
Theme Name: Aurora Pro
Theme URI: https://aurorapro.dev
Author: Aurora Pro Team
Author URI: https://aurorapro.dev/about
Description: 面向商业站点的现代 WordPress 主题：干净排版、移动优先响应式布局、深浅色自适应，内置授权与高级功能开关，未激活时优雅降级而不影响基础体验。
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: aurora-pro
Domain Path: /languages
Tags: blog, one-column, two-columns, right-sidebar, custom-logo, custom-menu, editor-style, featured-images, footer-widgets, full-width-template, post-formats, threaded-comments, translation-ready, wide-blocks
*/

/* ==========================================================================
   1. 设计变量（全站唯一来源，assets/css/main.css 只消费这里的变量）
   ========================================================================== */

:root {
	/* 颜色 —— 浅色模式 */
	--aurora-color-bg: #ffffff;
	--aurora-color-surface: #f6f7fb;
	--aurora-color-surface-2: #eef0f8;
	--aurora-color-text: #151923;
	--aurora-color-heading: #0f131c;
	--aurora-color-text-muted: #5b6273;
	--aurora-color-border: #e3e6ef;
	--aurora-color-border-strong: #cdd2e0;
	/* 强调色：默认紫色，Customizer「强调色」会在 wp_head 输出 :root{--aurora-accent:...} 覆盖它 */
	--aurora-accent: #5b5bd6;
	--aurora-color-primary: var(--aurora-accent);
	--aurora-color-primary-hover: #4a4ac4;
	--aurora-color-primary-soft: #ececfa;
	--aurora-color-on-primary: #ffffff;
	--aurora-color-accent: #f0a33a;
	--aurora-color-success: #1f9d6b;
	--aurora-color-danger: #cf3f3f;
	--aurora-color-overlay: rgba(11, 15, 25, 0.55);
	--aurora-color-focus: var(--aurora-accent);

	/* 间距 */
	--aurora-space-1: 0.25rem;
	--aurora-space-2: 0.5rem;
	--aurora-space-3: 0.75rem;
	--aurora-space-4: 1rem;
	--aurora-space-5: 1.5rem;
	--aurora-space-6: 2rem;
	--aurora-space-7: 2.5rem;
	--aurora-space-8: 3rem;
	--aurora-space-9: 4rem;
	--aurora-space-10: 5rem;
	--aurora-space-12: 7rem;

	/* 圆角 */
	--aurora-radius-sm: 6px;
	--aurora-radius-md: 10px;
	--aurora-radius-lg: 16px;
	--aurora-radius-xl: 24px;
	--aurora-radius-pill: 999px;

	/* 阴影 */
	--aurora-shadow-sm: 0 1px 2px rgba(15, 19, 28, 0.06);
	--aurora-shadow-md: 0 6px 20px rgba(15, 19, 28, 0.08);
	--aurora-shadow-lg: 0 18px 48px rgba(15, 19, 28, 0.12);

	/* 排版 —— 纯系统字体栈，不加载任何外部字体 */
	--aurora-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
	--aurora-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
	--aurora-font-size-xs: 0.75rem;
	--aurora-font-size-sm: 0.875rem;
	--aurora-font-size-base: 1rem;
	--aurora-font-size-lg: 1.125rem;
	--aurora-font-size-xl: 1.375rem;
	--aurora-line-height: 1.75;
	--aurora-line-height-tight: 1.25;
	--aurora-letter-spacing-tight: -0.015em;

	/* 布局与动效 */
	--aurora-container: 1200px;
	--aurora-content-size: 760px;
	--aurora-header-height: 68px;
	--aurora-transition: 160ms ease;
	--aurora-transition-slow: 280ms ease;
	--aurora-z-header: 100;
	--aurora-z-overlay: 90;
	--aurora-z-totop: 200;
}

/* 现代浏览器：由强调色推导悬停色、浅底色与焦点色；不支持 color-mix 时保留上面的固定值 */
@supports (color: color-mix(in srgb, #000 10%, #fff)) {
	:root {
		--aurora-color-primary-hover: color-mix(in srgb, var(--aurora-accent) 84%, #000 16%);
		--aurora-color-primary-soft: color-mix(in srgb, var(--aurora-accent) 12%, #ffffff 88%);
		--aurora-color-focus: color-mix(in srgb, var(--aurora-accent) 70%, #ffffff 30%);
	}
}

/* 深色模式：跟随系统，不写 cookie、不闪烁 */
@media (prefers-color-scheme: dark) {
	:root {
		--aurora-color-bg: #0e1117;
		--aurora-color-surface: #151a24;
		--aurora-color-surface-2: #1b212d;
		--aurora-color-text: #e6e9f2;
		--aurora-color-heading: #f4f6fb;
		--aurora-color-text-muted: #a6adbf;
		--aurora-color-border: #262d3b;
		--aurora-color-border-strong: #364054;
		--aurora-color-primary: #9a9af7;
		--aurora-color-primary-hover: #b4b4ff;
		--aurora-color-primary-soft: #1e2338;
		--aurora-color-on-primary: #10131b;
		--aurora-color-overlay: rgba(4, 6, 12, 0.72);
		--aurora-color-focus: #b6b6ff;
		--aurora-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.45);
		--aurora-shadow-md: 0 6px 20px rgba(0, 0, 0, 0.5);
		--aurora-shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.6);
	}
}

/*
 * 深色模式下的强调色：把用户强调色与白色混合，避免在深色背景上对比度不足。
 * 不支持 color-mix 的浏览器沿用上面的固定浅紫色。
 */
@media (prefers-color-scheme: dark) {
	@supports (color: color-mix(in srgb, #000 10%, #fff)) {
		:root {
			--aurora-color-primary: color-mix(in srgb, var(--aurora-accent) 55%, #ffffff 45%);
			--aurora-color-primary-hover: color-mix(in srgb, var(--aurora-accent) 42%, #ffffff 58%);
			--aurora-color-primary-soft: color-mix(in srgb, var(--aurora-accent) 20%, #151a24 80%);
			--aurora-color-focus: color-mix(in srgb, var(--aurora-accent) 45%, #ffffff 55%);
		}
	}
}

/* ==========================================================================
   2. Reset / 基础
   ========================================================================== */

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
	text-size-adjust: 100%;
	scroll-behavior: smooth;
	scroll-padding-top: calc(var(--aurora-header-height) + 1rem);
}

/* 尊重系统的"减少动态效果"设置：关闭平滑滚动与过渡 */
@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}

body {
	margin: 0;
	background-color: var(--aurora-color-bg);
	color: var(--aurora-color-text);
	font-family: var(--aurora-font-sans);
	font-size: var(--aurora-font-size-base);
	line-height: var(--aurora-line-height);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	text-rendering: optimizeLegibility;
	overflow-wrap: break-word;
}

/* ==========================================================================
   3. 排版
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
	margin: 0 0 0.6em;
	color: var(--aurora-color-heading);
	font-weight: 700;
	line-height: var(--aurora-line-height-tight);
	letter-spacing: var(--aurora-letter-spacing-tight);
	overflow-wrap: break-word;
}

h1 {
	font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem);
}

h2 {
	font-size: clamp(1.6rem, 1.25rem + 1.5vw, 2.25rem);
}

h3 {
	font-size: clamp(1.3rem, 1.15rem + 0.75vw, 1.65rem);
}

h4 {
	font-size: 1.25rem;
}

h5 {
	font-size: 1.125rem;
}

h6 {
	font-size: 1rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
}

p {
	margin: 0 0 1.25em;
}

p:last-child {
	margin-bottom: 0;
}

a {
	color: var(--aurora-color-primary);
	text-decoration: underline;
	text-decoration-thickness: from-font;
	text-underline-offset: 2px;
	transition: color var(--aurora-transition);
}

a:hover,
a:active {
	color: var(--aurora-color-primary-hover);
}

:focus-visible {
	outline: 2px solid var(--aurora-color-focus);
	outline-offset: 2px;
	border-radius: var(--aurora-radius-sm);
}

strong,
b {
	font-weight: 700;
}

em,
i {
	font-style: italic;
}

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

sub,
sup {
	font-size: 0.75em;
	line-height: 0;
	position: relative;
	vertical-align: baseline;
}

sup {
	top: -0.5em;
}

sub {
	bottom: -0.25em;
}

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

figure {
	margin: 0 0 1.5em;
}

figcaption,
.wp-caption-text,
.gallery-caption {
	margin-top: var(--aurora-space-2);
	color: var(--aurora-color-text-muted);
	font-size: var(--aurora-font-size-sm);
	text-align: center;
}

ul,
ol {
	margin: 0 0 1.25em;
	padding-left: 1.5em;
}

li > ul,
li > ol {
	margin-bottom: 0;
}

dl {
	margin: 0 0 1.25em;
}

dt {
	font-weight: 700;
}

dd {
	margin: 0 0 0.75em 1.25em;
}

blockquote {
	margin: 0 0 1.5em;
	padding: 0.75em 0 0.75em 1.25em;
	border-left: 3px solid var(--aurora-color-primary);
	color: var(--aurora-color-text-muted);
	font-size: var(--aurora-font-size-lg);
}

blockquote p:last-child {
	margin-bottom: 0;
}

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

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

code {
	padding: 0.15em 0.4em;
	border-radius: var(--aurora-radius-sm);
	background-color: var(--aurora-color-surface-2);
	font-size: 0.9em;
}

pre {
	margin: 0 0 1.5em;
	padding: var(--aurora-space-5);
	overflow-x: auto;
	border: 1px solid var(--aurora-color-border);
	border-radius: var(--aurora-radius-md);
	background-color: var(--aurora-color-surface);
	font-size: var(--aurora-font-size-sm);
	line-height: 1.65;
}

pre code {
	padding: 0;
	background: none;
}

hr {
	height: 1px;
	margin: var(--aurora-space-7) 0;
	border: 0;
	background-color: var(--aurora-color-border);
}

table {
	width: 100%;
	margin: 0 0 1.5em;
	border-collapse: collapse;
	border-spacing: 0;
	font-size: var(--aurora-font-size-sm);
}

caption {
	margin-bottom: var(--aurora-space-2);
	color: var(--aurora-color-text-muted);
	font-size: var(--aurora-font-size-sm);
	text-align: left;
}

th,
td {
	padding: 0.65em 0.75em;
	border: 1px solid var(--aurora-color-border);
	text-align: left;
	vertical-align: top;
}

thead th {
	background-color: var(--aurora-color-surface);
	font-weight: 600;
}

/* 表单控件继承排版，样式细节在 main.css */
button,
input,
select,
textarea {
	font: inherit;
	color: inherit;
}

button {
	cursor: pointer;
}

textarea {
	resize: vertical;
}

::selection {
	background-color: var(--aurora-color-primary);
	color: var(--aurora-color-on-primary);
}

/* ==========================================================================
   4. 无障碍工具类与 WordPress 必需类
   ========================================================================== */

.screen-reader-text {
	position: absolute !important;
	width: 1px;
	height: 1px;
	margin: -1px;
	padding: 0;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	border: 0;
	word-wrap: normal !important;
}

.screen-reader-text:focus {
	display: block;
	position: absolute !important;
	top: 0.5rem;
	left: 0.5rem;
	z-index: 100000;
	width: auto;
	height: auto;
	padding: 0.75rem 1rem;
	clip: auto;
	clip-path: none;
	border-radius: var(--aurora-radius-md);
	background-color: var(--aurora-color-bg);
	color: var(--aurora-color-text);
	box-shadow: var(--aurora-shadow-lg);
	font-size: var(--aurora-font-size-sm);
	text-decoration: none;
}

.skip-link {
	position: absolute;
	z-index: 100000;
	padding: 0;
}

.skip-link:focus {
	position: fixed;
}

.alignleft {
	float: left;
	margin: 0.25em 1.5em 1em 0;
}

.alignright {
	float: right;
	margin: 0.25em 0 1em 1.5em;
}

.aligncenter {
	display: block;
	margin-right: auto;
	margin-left: auto;
}

.alignwide {
	width: 100%;
	max-width: var(--aurora-container);
	margin-right: auto;
	margin-left: auto;
}

.alignfull {
	width: 100vw;
	max-width: 100vw;
	margin-left: calc(50% - 50vw);
}

.wp-caption {
	max-width: 100%;
}

.wp-caption img {
	display: block;
}

.gallery {
	display: flex;
	flex-wrap: wrap;
	gap: var(--aurora-space-3);
	margin-bottom: var(--aurora-space-5);
}

.gallery-item {
	margin: 0;
	flex: 0 1 calc(33.333% - var(--aurora-space-3));
}

.sticky {
	display: block;
}

.bypostauthor > .comment-body {
	border-left: 3px solid var(--aurora-color-primary);
}

.edit-link {
	display: inline-block;
	margin-top: var(--aurora-space-4);
	font-size: var(--aurora-font-size-sm);
}

.wp-block-image img,
.entry-content img {
	border-radius: var(--aurora-radius-md);
}

.entry-content > * {
	max-width: var(--aurora-content-size);
}

.entry-content > .alignwide {
	max-width: min(var(--aurora-container), 100%);
}

.entry-content > .alignfull {
	max-width: none;
}