/* ============================================================
   Warm Editorial 主页样式
   token 取自 warm-editorial/tokens.css（权威源）
   规则：无渐变、无纯黑纯白、圆角 8–24px、一屏一个 accent、留白要够
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
	/* ---- 色板（tokens.css 逐字对应）---- */
	--bg: #fbf6ee;
	--surface: #fffdf8;
	--surface-warm: #f1e3cf;
	--fg: #201914;
	--fg-2: #4c4037;
	--muted: #7a6d63;
	--meta: #9b5b32;
	--border: #ded2c3;
	--border-soft: #eee4d7;
	--accent: #9b5b32;
	--accent-on: #ffffff;
	--accent-hover: color-mix(in oklab, var(--accent), black 8%);
	--success: #4f8a4f;

	/* ---- 字体栈 ---- */
	--font-display: Georgia, 'Times New Roman', serif;
	--font-body: Inter, system-ui, -apple-system, sans-serif;
	--font-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;

	/* ---- 字号阶梯 ---- */
	--text-xs: 12px;
	--text-sm: 14px;
	--text-base: 17px;
	--text-lg: 20px;
	--text-xl: 28px;
	--text-2xl: 42px;

	/* ---- 行高 / 字距 ---- */
	--leading-body: 1.62;
	--leading-tight: 1;
	--tracking-display: -0.025em;

	/* ---- 圆角（8–24px）---- */
	--radius-sm: 10px;
	--radius-md: 16px;
	--radius-lg: 24px;
	--radius-pill: 9999px;

	/* ---- 动效 ---- */
	--motion-fast: 150ms;
	--motion-base: 240ms;
	--ease-standard: cubic-bezier(0.2, 0, 0, 1);
	--ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
	--transition-fast: var(--motion-fast) var(--ease-standard);
	--transition-base: var(--motion-base) var(--ease-standard);

	/* ---- 阴影（仅 flat / raised 两级）---- */
	--elev-ring: 0 0 0 1px var(--border);
	--shadow-hover: 0 2px 16px rgba(32, 25, 20, 0.06);
	--shadow-float: 0 8px 30px rgba(32, 25, 20, 0.10);
	--focus-ring: 0 0 0 4px rgba(155, 91, 50, 0.24);

	/* ---- 布局 ---- */
	--container-max: 1080px;
	--gutter: clamp(1.25rem, 4vw, 2.5rem);
	--section-y: clamp(3.5rem, 7vw, 6rem);

	color-scheme: light;
}

/* ============================================================
   Reset & base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--fg);
	font-family: var(--font-body);
	font-size: var(--text-base);
	line-height: var(--leading-body);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	text-rendering: optimizeLegibility;
}

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

a {
	color: var(--accent);
	text-decoration: underline;
	text-decoration-color: color-mix(in oklab, var(--accent), transparent 60%);
	text-underline-offset: 3px;
	text-decoration-thickness: 1px;
	transition: color var(--transition-fast), background var(--transition-fast);
}
a:hover {
	color: var(--accent-hover);
	text-decoration-color: transparent;
	background: color-mix(in oklab, var(--accent), transparent 92%);
}

h1, h2, h3, h4 {
	font-family: var(--font-display);
	color: var(--fg);
	font-weight: 700;
	line-height: 1.15;
	letter-spacing: var(--tracking-display);
	margin: 0;
}
p { margin: 0; }

::selection {
	background: color-mix(in oklab, var(--accent), transparent 70%);
	color: var(--fg);
}

:focus-visible {
	outline: none;
	box-shadow: var(--focus-ring);
	border-radius: var(--radius-sm);
}

/* ============================================================
   Layout primitives
   ============================================================ */
.container {
	width: 100%;
	max-width: var(--container-max);
	margin-inline: auto;
	padding-inline: var(--gutter);
}

.section {
	position: relative;
	padding-block: var(--section-y);
}

.section[id] { scroll-margin-top: 72px; }

/* ---- 通用文字类 ---- */
.kicker {
	display: inline-flex;
	align-items: center;
	gap: 0.6rem;
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--meta);
}
.kicker::before {
	content: '';
	width: 1.6rem;
	height: 1px;
	background: var(--border);
}

.mono {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	letter-spacing: 0.08em;
	color: var(--muted);
}

/* ---- 按钮 ---- */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.4em;
	min-height: 42px;
	padding: 0.6em 1.3em;
	border: 1px solid transparent;
	border-radius: var(--radius-sm);
	font-family: var(--font-body);
	font-weight: 600;
	font-size: var(--text-sm);
	letter-spacing: 0;
	text-decoration: none;
	cursor: pointer;
	transition: background var(--transition-fast), border-color var(--transition-fast),
		color var(--transition-fast), transform var(--transition-fast);
}
.btn:focus-visible { box-shadow: var(--focus-ring); }
.btn:hover { text-decoration: none; }
.btn-primary {
	background: var(--accent);
	color: var(--accent-on);
}
.btn-primary:hover {
	background: var(--accent-hover);
	color: var(--accent-on);
	transform: translateY(-1px);
}
.btn-secondary {
	background: var(--surface);
	color: var(--fg);
	border-color: var(--border);
}
.btn-secondary:hover {
	border-color: var(--accent);
	color: var(--accent);
	transform: translateY(-1px);
}

/* ---- 卡片 ---- */
.card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
}

/* ---- section 标题 ---- */
.section-head {
	display: flex;
	align-items: end;
	justify-content: space-between;
	gap: 1rem;
	margin-bottom: 2.5rem;
	flex-wrap: wrap;
}
.section-head h2 { margin-top: 0.5rem; font-size: var(--text-xl); }
.section-head__more {
	font-family: var(--font-mono);
	font-size: var(--text-sm);
	font-weight: 600;
	letter-spacing: 0.06em;
	color: var(--accent);
	border-bottom: 1px solid var(--border);
	padding-bottom: 2px;
	text-decoration: none;
}
.section-head__more:hover {
	color: var(--accent-hover);
	border-color: var(--accent);
	background: transparent;
}

/* ============================================================
   Top bar
   ============================================================ */
.topbar {
	position: sticky;
	top: 0;
	z-index: 200;
	background: color-mix(in oklab, var(--bg), transparent 12%);
	backdrop-filter: blur(10px) saturate(1.05);
	-webkit-backdrop-filter: blur(10px) saturate(1.05);
	border-bottom: 1px solid var(--border-soft);
}
.topbar__row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	height: 60px;
}
.brand {
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 1.05rem;
	color: var(--fg);
	letter-spacing: var(--tracking-display);
	text-decoration: none;
}
.brand:hover { color: var(--accent); background: transparent; }
.brand__mark {
	display: inline-grid;
	place-items: center;
	width: 28px;
	height: 28px;
	border: 1.5px solid var(--accent);
	border-radius: 50%;
	color: var(--accent);
	font-size: 0.8rem;
	font-family: var(--font-display);
}
.topnav { display: flex; align-items: center; gap: 0.15rem; }
.topnav a {
	padding: 0.4rem 0.65rem;
	border-radius: var(--radius-sm);
	font-size: var(--text-sm);
	font-weight: 500;
	color: var(--fg-2);
	text-decoration: none;
	transition: color var(--transition-fast), background var(--transition-fast);
}
.topnav a:hover {
	color: var(--accent);
	background: color-mix(in oklab, var(--accent), transparent 92%);
}
.topbar__socials {
	display: flex;
	align-items: center;
	gap: 0.2rem;
}
.topbar__socials a {
	display: inline-grid;
	place-items: center;
	width: 34px;
	height: 34px;
	border-radius: 50%;
	color: var(--muted);
	text-decoration: none;
	transition: color var(--transition-fast), background var(--transition-fast);
}
.topbar__socials a:hover {
	color: var(--accent);
	background: color-mix(in oklab, var(--accent), transparent 92%);
}
.topbar__socials svg { width: 17px; height: 17px; }

/* ============================================================
   Hero — 左头像 + 右简介
   ============================================================ */
.hero {
	position: relative;
	overflow: hidden;
	padding-block: clamp(3rem, 8vw, 5.5rem) clamp(2rem, 4vw, 3rem);
}
.hero__aura {
	position: absolute;
	z-index: 0;
	right: -3vw;
	top: 50%;
	transform: translateY(-50%);
	font-family: var(--font-display);
	font-weight: 700;
	font-size: clamp(18rem, 32vw, 30rem);
	color: var(--accent);
	opacity: 0.05;
	pointer-events: none;
	line-height: 1;
	user-select: none;
	will-change: transform;
}
.hero__grid {
	position: relative;
	z-index: 1;
	display: grid;
	grid-template-columns: auto 1fr;
	gap: clamp(2rem, 5vw, 3.5rem);
	align-items: center;
}
.hero__avatar {
	flex: 0 0 auto;
}
.avatar-img {
	width: clamp(110px, 16vw, 150px);
	height: clamp(110px, 16vw, 150px);
	border-radius: 50%;
	object-fit: cover;
	border: 2px solid var(--border);
}
.hero__inner {
	min-width: 0;
}
.hero__title {
	font-size: clamp(2.2rem, 1.2rem + 4vw, 3.5rem);
	line-height: 1.1;
	margin-bottom: 1rem;
}
.hero__bio {
	font-size: 1.1rem;
	line-height: var(--leading-body);
	color: var(--fg-2);
	margin-bottom: 1.5rem;
	max-width: 40ch;
}
.hero__cta {
	display: flex;
	flex-wrap: wrap;
	gap: 0.7rem;
	align-items: center;
}

/* 错峰入场 */
.hero__grid > * {
	opacity: 0;
	transform: translateY(12px);
	animation: heroIn 0.7s var(--ease-standard) forwards;
}
.hero__grid > *:nth-child(1) { animation-delay: 0.05s; }
.hero__grid > *:nth-child(2) { animation-delay: 0.15s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }

@media (max-width: 540px) {
	.hero__grid {
		grid-template-columns: 1fr;
		justify-items: center;
		text-align: center;
	}
	.hero__cta { justify-content: center; }
	.hero__bio { margin-inline: auto; }
}

/* ============================================================
   Writing — feature + grid
   ============================================================ */
.feature {
	padding: clamp(1.4rem, 3vw, 2rem);
	margin-bottom: 1.5rem;
}
.feature__kicker { margin-bottom: 0.6rem; }
.feature__title {
	font-size: clamp(1.4rem, 1.1rem + 1.4vw, 1.9rem);
	line-height: 1.25;
	margin-bottom: 0.7rem;
}
.feature__title a {
	color: var(--fg);
	text-decoration: none;
	transition: color var(--transition-fast);
}
.feature__title a:hover { color: var(--accent); background: transparent; }
.feature__excerpt {
	color: var(--fg-2);
	font-size: 1rem;
	max-width: 52ch;
	margin-bottom: 0.9rem;
}
.feature__meta {
	display: flex;
	gap: 0.8rem;
	align-items: center;
	margin-bottom: 0.9rem;
}
.badge {
	display: inline-flex;
	align-items: center;
	gap: 0.3rem;
	padding: 0.18rem 0.55rem;
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--meta);
	border: 1px solid var(--border);
	border-radius: var(--radius-pill);
	background: var(--bg);
}
.morelink {
	font-family: var(--font-mono);
	font-size: var(--text-sm);
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--accent);
	border-bottom: 1px solid var(--border);
	padding-bottom: 2px;
	text-decoration: none;
}
.morelink:hover {
	color: var(--accent-hover);
	border-color: var(--accent);
	background: transparent;
}

.articles {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1.2rem;
}
.article {
	display: flex;
	flex-direction: column;
	padding: clamp(1.1rem, 2vw, 1.4rem);
	text-decoration: none;
	transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.article:hover {
	transform: translateY(-2px);
	box-shadow: var(--shadow-hover);
}
.article__meta {
	display: flex;
	gap: 0.6rem;
	align-items: center;
	margin-bottom: 0.45rem;
}
.article__title {
	font-size: 1.15rem;
	line-height: 1.3;
	margin-bottom: 0.4rem;
	color: var(--fg);
	transition: color var(--transition-fast);
}
.article:hover .article__title { color: var(--accent); }
.article__excerpt {
	color: var(--muted);
	font-size: var(--text-sm);
	line-height: 1.55;
	margin-bottom: 0.7rem;
}
.article__more {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--accent);
	margin-top: auto;
}

/* 文章加载 fallback */
.writing__fallback {
	text-align: center;
	padding: 1.5rem 0;
}

/* ============================================================
   Workshop
   ============================================================ */
.workshop {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.2rem;
	padding: clamp(1.4rem, 3vw, 2rem) clamp(1.6rem, 3.5vw, 2.2rem);
	text-decoration: none;
	transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.workshop:hover {
	transform: translateY(-2px);
	box-shadow: var(--shadow-hover);
	background: var(--surface);
}
.workshop__label {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--meta);
	margin-bottom: 0.25rem;
}
.workshop__title {
	font-size: var(--text-lg);
	margin-bottom: 0.25rem;
}
.workshop__desc {
	font-size: var(--text-sm);
	color: var(--muted);
	margin: 0;
}
.workshop__arrow {
	flex: 0 0 auto;
	font-family: var(--font-display);
	font-size: 1.4rem;
	color: var(--accent);
	line-height: 1;
}

/* ============================================================
   Contact
   ============================================================ */
.contact__inner { max-width: 50rem; }
.contact h2 { margin: 0.5rem 0 1rem; font-size: var(--text-xl); }
.contact__lede {
	font-size: 1.05rem;
	color: var(--fg-2);
	max-width: 42ch;
	margin-bottom: 1.8rem;
}
.socials {
	display: flex;
	flex-wrap: wrap;
	gap: 0.55rem;
}
.social {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.5rem 0.9rem;
	border: 1px solid var(--border);
	border-radius: var(--radius-pill);
	background: var(--surface);
	font-family: var(--font-body);
	font-weight: 500;
	font-size: var(--text-sm);
	color: var(--fg);
	text-decoration: none;
	transition: transform var(--transition-fast), border-color var(--transition-fast),
		box-shadow var(--transition-fast);
}
.social:hover {
	transform: translateY(-1px);
	border-color: var(--accent);
	box-shadow: var(--shadow-hover);
	background: var(--surface);
}
.social svg { width: 16px; height: 16px; flex: 0 0 auto; }
.social__handle {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	letter-spacing: 0.04em;
	color: var(--muted);
	font-weight: 400;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
	border-top: 1px solid var(--border-soft);
	padding-block: 2rem;
}
.footer__row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	flex-wrap: wrap;
}
.footer__row p {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	letter-spacing: 0.08em;
	color: var(--muted);
}

/* ============================================================
   Floating bottom nav
   ============================================================ */
.floatnav {
	position: fixed;
	z-index: 300;
	left: 50%;
	bottom: 1.2rem;
	transform: translate(-50%, 160%);
	transition: transform 0.4s var(--ease-spring);
	display: flex;
	align-items: center;
	gap: 0.75rem;
	padding: 0.4rem 0.5rem 0.4rem 0.8rem;
	background: color-mix(in oklab, var(--surface), transparent 5%);
	border: 1px solid var(--border);
	border-radius: var(--radius-pill);
	box-shadow: var(--shadow-float);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
}
.floatnav.is-shown { transform: translate(-50%, 0); }
.floatnav__mark {
	display: inline-grid;
	place-items: center;
	width: 26px;
	height: 26px;
	border: 1.5px solid var(--accent);
	border-radius: 50%;
	color: var(--accent);
	font-size: 0.75rem;
	font-family: var(--font-display);
	font-weight: 700;
}
.floatnav .btn { min-height: 38px; padding: 0.45em 1.1em; font-size: var(--text-xs); }

/* ============================================================
   Reveal
   ============================================================ */
.reveal {
	opacity: 0;
	transform: translateY(14px);
	transition: opacity 0.7s var(--ease-standard), transform 0.7s var(--ease-standard);
}
.reveal.is-in { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (min-width: 680px) {
	.articles { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 679px) {
	.topnav { display: none; }
	.hero__cta { flex-direction: column; align-items: stretch; }
	.hero__cta .btn { width: 100%; }
	.workshop { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
	.reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
	.hero__inner > * { opacity: 1 !important; transform: none !important; animation: none !important; }
	.hero__aura { transform: translateY(-50%) !important; }
}