/* NexT-inspired clean single-column layout */
:root {
  --md-primary: #3f51b5;
  --md-primary-dark: #303f9f;
  --md-accent: #ff4081;
  --md-text: #212121;
  --md-text-secondary: #757575;
  --md-divider: #e0e0e0;
  --md-bg: #f5f5f5;
  --md-surface: #fff;
  --md-shadow-1: 0 2px 4px rgba(0, 0, 0, 0.12), 0 0 6px rgba(0, 0, 0, 0.04);
  --md-shadow-2: 0 4px 5px rgba(0, 0, 0, 0.14), 0 1px 10px rgba(0, 0, 0, 0.12);
  --md-content-width: min(960px, calc(100vw - 20px));
  /* 仿终端亚克力：无 backdrop-filter。下列值可由 generate 注入的 #typlog-glass-vars（来自 config.toml glass_panel_opacity）覆盖 */
  --glass-body-a: 0.78;
  --glass-body-a-mid: 0.74;
  --glass-body-a-bottom: 0.76;
  --glass-border-soft: rgba(0, 0, 0, 0.06);
  /* 单层外阴影 + 一条上沿高光，避免多层 box-shadow 在滚动时反复重绘 */
  --glass-shadow-outer: 0 4px 24px rgba(0, 0, 0, 0.09);
  --glass-inset-top: inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
  /* 减少滚动链传到父视口时的合成开销 */
  overscroll-behavior-y: contain;
}

body.typlog-material {
  margin: 0;
  min-height: 100vh;
  font-family: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--md-text);
  background: var(--md-bg);
  line-height: 1.6;
  overscroll-behavior-y: contain;
}

/* 全站背景层：具体图与模糊由 `typlog-site-bg` 内联样式注入（见 html.rs） */
#typlog-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  contain: strict;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
}

/* —— App bar —— */
.material-appbar {
  background: var(--md-primary);
  color: #fff;
  box-shadow: var(--md-shadow-2);
  position: sticky;
  top: 0;
  z-index: 8;
  contain: layout style;
  transform: translateZ(0);
}

.material-appbar-inner {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 20px 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.material-appbar-brand {
  color: #fff;
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.material-appbar-brand:hover {
  opacity: 0.92;
}

/* —— Index content column (single card like NexT Gemini) —— */
.material-index-wrap {
  width: 100%;
  max-width: var(--md-content-width);
  margin: 20px auto 48px;
  padding: 0;
  position: relative;
  isolation: isolate;
  transform: translateZ(0);
  border-radius: 8px;
  overflow: clip;
  border: 1px solid var(--glass-border-soft);
  box-shadow: var(--glass-shadow-outer), var(--glass-inset-top);
}

.material-index-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.42) 0%,
      rgba(255, 255, 255, 0) 26%
    ),
    linear-gradient(
      180deg,
      rgba(255, 255, 255, var(--glass-body-a)) 0%,
      rgba(248, 249, 253, var(--glass-body-a-mid)) 55%,
      rgba(244, 245, 250, var(--glass-body-a-bottom)) 100%
    );
  pointer-events: none;
}

.material-index-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='3' height='3'%3E%3Ccircle cx='1.5' cy='1.5' r='.35' fill='%23000' fill-opacity='.06'/%3E%3C/svg%3E");
  background-size: 3px 3px;
}

.material-index-wrap > * {
  position: relative;
  z-index: 1;
}

/* —— Index hero / signature —— */
.material-index-hero {
  text-align: center;
  padding: 28px 24px 12px;
}

.material-index-signature {
  display: block;
  margin: 0;
  padding: 0;
  text-align: center;
  background: none;
  box-shadow: none;
  font-family: "STKaiti", "KaiTi", "Kaiti SC", "DFKai-SB", "Noto Serif SC", serif;
  font-size: 2rem;
  font-weight: 600;
  color: #5d4db2;
  letter-spacing: 0.06em;
  line-height: 1.6;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.55), 0 2px 8px rgba(63, 81, 181, 0.2);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .material-index-signature {
    background: linear-gradient(120deg, #5c6bc0 0%, #7e57c2 45%, #ec407a 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

/* —— Index post list —— */
.material-post-list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.material-post-card {
  background: none;
  border-radius: 0;
  box-shadow: none;
  border-bottom: 1px solid var(--md-divider);
}

.material-post-card:last-child {
  border-bottom: none;
}

.material-post-card:hover {
  background: rgba(0, 0, 0, 0.02);
}

@media (hover: hover) {
  .material-post-card {
    transition: background 0.2s ease;
  }
}

.material-post-card-inner {
  display: block;
  padding: 14px 32px;
  text-decoration: none;
  color: inherit;
}

.material-post-card-title {
  margin: 0 0 4px;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--md-primary-dark);
}

.material-post-card:hover .material-post-card-title {
  color: var(--md-accent);
}

.material-post-card-meta {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--md-text-secondary);
}

.material-post-card-meta time {
  font-variant-numeric: tabular-nums;
}

/* —— Post page (single content column) —— */
.material-post-main {
  width: 100%;
  max-width: var(--md-content-width);
  margin: 20px auto 48px;
  padding: 0;
  position: relative;
  isolation: isolate;
  transform: translateZ(0);
  border-radius: 8px;
  overflow: clip;
  border: 1px solid var(--glass-border-soft);
  box-shadow: var(--glass-shadow-outer), var(--glass-inset-top);
}

.material-post-main::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.42) 0%,
      rgba(255, 255, 255, 0) 26%
    ),
    linear-gradient(
      180deg,
      rgba(255, 255, 255, var(--glass-body-a)) 0%,
      rgba(248, 249, 253, var(--glass-body-a-mid)) 55%,
      rgba(244, 245, 250, var(--glass-body-a-bottom)) 100%
    );
  pointer-events: none;
}

.material-post-main::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='3' height='3'%3E%3Ccircle cx='1.5' cy='1.5' r='.35' fill='%23000' fill-opacity='.06'/%3E%3C/svg%3E");
  background-size: 3px 3px;
}

.material-post-main > * {
  position: relative;
  z-index: 1;
}

.material-article-hero {
  background: none;
  box-shadow: none;
  border-radius: 0;
  padding: 32px 40px 20px;
  border-bottom: 1px solid var(--md-divider);
}

.material-article-title {
  margin: 0 0 8px;
  font-size: 1.625rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--md-text);
}

.material-article-date {
  margin: 0;
  font-size: 0.875rem;
  color: var(--md-text-secondary);
}

.material-article-date time {
  font-variant-numeric: tabular-nums;
}

/* Typst HTML body：按块级 content-visibility（比整坨 .material-typst 更易跳过视口外段落） */
.material-typst {
  background: none;
  box-shadow: none;
  border-radius: 0;
  padding: 28px 40px 40px;
  contain: layout paint;
}

.material-typst > * {
  content-visibility: auto;
  contain-intrinsic-size: auto 280px;
}

.material-typst p {
  margin: 0 0 1em;
}

.material-typst p:last-child {
  margin-bottom: 0;
}

.material-typst h1,
.material-typst h2,
.material-typst h3 {
  font-weight: 400;
  margin: 1.25em 0 0.5em;
}

.material-typst pre,
.material-typst code {
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  font-size: 0.9em;
}

.material-typst pre {
  overflow-x: auto;
  padding: 12px 16px;
  background: #fafafa;
  border-radius: 2px;
  border: 1px solid var(--md-divider);
  contain: paint;
}

.material-typst img {
  max-width: 100%;
  height: auto;
  content-visibility: auto;
  contain-intrinsic-size: auto 220px;
}

.material-typst figure[role="math"] {
  display: block;
  overflow-x: auto;
  contain: paint;
}

.material-typst [role="math"] svg.typst-frame {
  pointer-events: none;
}

.material-typst a {
  color: var(--md-primary);
}

.material-typst a:hover {
  color: var(--md-accent);
}

/* Markdown 风格引用块（对应 Typst 的 `>` / #quote(block: true) → <blockquote>） */
.material-typst blockquote {
  margin: 0 0 1em;
  padding: 0 0 0 1em;
  border-left: 4px solid #d0d7de;
  color: #57606a;
  background: none;
}

.material-typst blockquote p {
  margin: 0 0 0.75em;
}

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

/* Typst HTML：行内公式 SVG（导出常把 math 变成独立节点；配合 preamble 中 box + 下列规则） */
.material-typst svg {
  shape-rendering: geometricPrecision;
}

.material-typst svg.typst-frame {
  display: inline-block;
  /* Align inline math baseline with CJK body text. */
  vertical-align: 0.1em;
  max-width: 100%;
}

.material-typst figure[role="math"],
.material-typst .typst-math-display {
  display: block;
  margin: 0.9em 0;
  text-align: center;
  overflow-x: auto;
  contain: paint;
}

.material-typst figure[role="math"] svg.typst-frame,
.material-typst .typst-math-display svg.typst-frame {
  display: block;
  margin: 0 auto;
  max-width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .material-post-card {
    transition: none !important;
  }
}