/* warm editorial theme — design language inspired by hacktron.ai */

:root{
  color-scheme: light dark;
  --background: light-dark(oklch(94.5% .012 78), oklch(20.5% .007 68));
  --foreground: light-dark(oklch(26% .05 310), oklch(93% .025 90));
  --muted-foreground: light-dark(oklch(47% .035 310), oklch(75% .02 85));
  --muted: light-dark(oklch(96.5% .008 78), oklch(24% .009 70));
  --muted-2: light-dark(oklch(98% .006 78), oklch(27.5% .01 70));
  --hairline: light-dark(oklch(88.5% .012 78), oklch(30.5% .011 70));

  --font: Georgia, "Times New Roman", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Songti SC", serif;

  --text: 15px;
  --text-small: 12px;
  --text-prose: 16px;
  --text-h1: 23px;
  --text-h2: 19px;
  --leading: 1.25;
  --leading-prose: 1.55;

  --margin: 16px;
  --gutter: 16px;
  --header-height: 68px;
  --max-width: 1200px;
  --radius-small: 4px;
  --radius-medium: 12px;
  --page-top: 96px;
  --block-gap: 72px;
}
:root[data-theme=light]{ color-scheme: light }
:root[data-theme=dark]{ color-scheme: dark }

@media (width >= 600px){
  :root{
    --text: 16px;
    --text-h1: 25px;
    --text-h2: 21px;
    --margin: 24px;
    --gutter: 24px;
    --page-top: 128px;
  }
}
@media (width >= 1024px){
  :root{
    --text-prose: 18px;
    --page-top: 160px;
    --block-gap: 96px;
  }
}

*, *::before, *::after{ box-sizing: border-box }
html{ -webkit-text-size-adjust: 100% }
body{
  margin: 0;
  min-width: 320px;
  font-family: var(--font);
  font-size: var(--text);
  line-height: var(--leading);
  color: var(--foreground);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, p, ul, ol, figure, blockquote{ margin: 0 }
h1, h2, h3, h4{ font-size: inherit; font-weight: 400 }
a{ color: inherit; text-underline-offset: .15em; text-decoration-thickness: 1px }
::selection{ color: var(--background); background: var(--accent) }
:focus-visible{ outline: 2px solid var(--accent); outline-offset: 2px }

/* header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 2;
  background: color-mix(in oklab, var(--background) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.site-header-inner{
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--margin);
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.site-title{
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-size: 15px;
  letter-spacing: .01em;
}
.site-mark{
  width: 9px;
  height: 9px;
  margin-inline-end: 8px;
  background: var(--accent);
  border-radius: 2px;
}
.site-actions{ display: flex; align-items: center; gap: 4px }

/* pill button */
.pill{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  font-size: 12px;
  letter-spacing: .02em;
  font-family: inherit;
  color: inherit;
  text-decoration: none;
  background: color-mix(in oklab, var(--muted-2) 60%, transparent);
  backdrop-filter: blur(12px);
  border: 0;
  border-radius: var(--radius-medium);
  cursor: pointer;
}
.pill:hover{ background: color-mix(in oklab, var(--muted-2) 85%, transparent) }
.pill:active{ background: var(--muted-2) }

/* home */
.posts{
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--page-top) var(--margin) calc(var(--block-gap) + 40px);
}
.home-intro{ max-width: 24em; margin-bottom: var(--block-gap) }
.home-intro h1{
  font-size: var(--text-h2);
  font-weight: 400;
  line-height: var(--leading);
}
.posts-label{
  font-size: var(--text-small);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  margin: 0 0 24px;
}
.posts-list{ border-top: 1px solid var(--hairline) }
.post-item{ padding: 28px 0; border-bottom: 1px solid var(--hairline) }
.post-date{
  display: block;
  font-size: var(--text-small);
  letter-spacing: .04em;
  color: var(--muted-foreground);
  margin-bottom: 8px;
}
.post-item .post-title{
  font-size: var(--text-h1);
  font-weight: 400;
  line-height: var(--leading);
  margin-bottom: 8px;
}
.post-item .post-title a{ text-decoration: none }
.post-item .post-title a:hover{
  text-decoration: underline;
  text-decoration-color: var(--muted-foreground);
}
.post-excerpt{
  font-size: var(--text);
  line-height: var(--leading-prose);
  color: var(--muted-foreground);
  max-width: 40em;
  margin: 0;
}
@media (width >= 600px){
  .post-item{
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
    padding: 36px 0;
  }
  .post-date{ grid-column: 1 / span 3; margin-bottom: 0; padding-top: 2px }
  .post-main{ grid-column: 4 / span 9 }
}

/* post page */
.post{
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--page-top) var(--margin) calc(var(--block-gap) + 40px);
}
.post-meta{
  font-size: var(--text-small);
  letter-spacing: .04em;
  color: var(--muted-foreground);
  margin-bottom: 16px;
}
.post .post-title{
  font-size: var(--text-h1);
  font-weight: 400;
  line-height: var(--leading);
  max-width: 24em;
  margin-bottom: 40px;
}
.prose{ max-width: 42em }
.prose p{
  font-size: var(--text-prose);
  line-height: var(--leading-prose);
  margin: 0 0 1.25em;
}
.prose blockquote{
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--muted);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-small) var(--radius-small) 0;
  color: var(--muted-foreground);
  font-size: var(--text-small);
  line-height: var(--leading-prose);
}
.prose blockquote p{ font-size: inherit; margin: 0 0 .6em }
.prose blockquote p:last-child{ margin-bottom: 0 }
.prose a{
  text-decoration: underline;
  text-decoration-color: color-mix(in oklab, var(--accent) 50%, transparent);
}
.prose a:hover{ text-decoration-color: var(--accent) }
.prose h2, .prose h3{
  font-size: var(--text-h2);
  line-height: var(--leading);
  margin: 2em 0 .75em;
}
.prose ul, .prose ol{
  padding-left: 1.4em;
  margin: 0 0 1.25em;
  font-size: var(--text-prose);
  line-height: var(--leading-prose);
}
.prose li{ margin-bottom: .4em }
.prose strong{ font-weight: 600 }
.prose hr{ border: 0; border-top: 1px solid var(--hairline); margin: 2em 0 }
.post-foot{ margin-top: 56px; display: flex; gap: 8px }
@media (width >= 1024px){
  .post{
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
  }
  .post-head{ grid-column: 1 / span 4 }
  .prose{ grid-column: 6 / span 7 }
  .post-foot{ grid-column: 6 / span 7 }
}

/* 404 */
.empty{
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--page-top) var(--margin) calc(var(--block-gap) + 40px);
}
.empty h1{ font-size: var(--text-h1); font-weight: 400; margin: 12px 0 24px }

/* footer */
.site-footer{ border-top: 1px solid var(--hairline) }
.site-footer-inner{
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 36px var(--margin) 48px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 1.2em;
  color: var(--muted-foreground);
  font-size: var(--text-small);
}
.site-footer-inner a{ color: inherit }

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{ transition: none !important; animation: none !important }
}