:root {
  color-scheme: light;
  --paper: #f5f7f2;
  --paper-2: #e8efec;
  --surface: #ffffff;
  --ink: #111716;
  --ink-2: #2f3d3b;
  --muted: #66736f;
  --line: #cbd7d2;
  --line-strong: #91a6a0;
  --go: #00add8;
  --teal: #116b61;
  --copper: #a85c2a;
  --plum: #5546a3;
  --blue: #1d4ed8;
  --shadow: 0 18px 48px rgba(17, 23, 22, 0.08);
  --display-font: "Bahnschrift", "Segoe UI", "Microsoft YaHei", sans-serif;
  --body-font: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  --mono-font: "Cascadia Mono", "JetBrains Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(90deg, rgba(145, 166, 160, 0.22) 1px, transparent 1px),
    linear-gradient(rgba(145, 166, 160, 0.22) 1px, transparent 1px),
    linear-gradient(115deg, rgba(0, 173, 216, 0.1), transparent 34%),
    var(--paper);
  background-size: 42px 42px, 42px 42px, auto, auto;
  color: var(--ink);
  font-family: var(--body-font);
  line-height: 1.68;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--teal);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(0, 173, 216, 0.6);
  outline-offset: 3px;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 30;
  transform: translateY(-160%);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px 12px;
  background: var(--surface);
  color: var(--teal);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0;
  border-bottom: 1px solid rgba(145, 166, 160, 0.62);
  background: rgba(245, 247, 242, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-family: var(--display-font);
  font-size: 20px;
  font-weight: 900;
}

.brand img {
  width: 40px;
  height: 40px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  object-fit: cover;
}

.brand span {
  overflow-wrap: anywhere;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  color: var(--ink-2);
  font-family: var(--mono-font);
  font-size: 13px;
}

.site-nav a {
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 10px;
}

.site-nav a:hover {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.72);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.eyebrow {
  margin: 0;
  color: var(--copper);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.footer-links a,
.back-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px 14px;
  background: var(--surface);
  color: var(--teal);
  font-family: var(--mono-font);
  font-size: 13px;
  font-weight: 900;
}

.desk-panel,
.post-card,
.post-view,
.project-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
}

.desk-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  color: var(--muted);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.deck-shell {
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
  gap: 30px;
  align-items: start;
  padding: 44px 0 56px;
}

.desk-panel {
  position: sticky;
  top: 84px;
  display: grid;
  gap: 18px;
  padding: 18px;
  box-shadow: 0 14px 38px rgba(17, 23, 22, 0.06);
}

.desk-panel label,
.filter-group > span {
  color: var(--ink);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.desk-panel input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 10px 12px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.desk-panel input::placeholder {
  color: #7c8986;
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.tag-filters button {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 10px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 800;
}

.tag-filters button.active,
.tag-filters button:hover {
  border-color: var(--teal);
  background: #dcefed;
  color: var(--teal);
}

.paper-section {
  min-width: 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-heading h2 {
  margin: 4px 0 0;
  font-family: var(--display-font);
  font-size: 42px;
  line-height: 1;
  letter-spacing: 0;
}

.post-count {
  color: var(--muted);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.content-status {
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  background: var(--surface);
  color: var(--ink-2);
  font-weight: 700;
}

.content-status[data-variant="error"] {
  border-color: rgba(168, 92, 42, 0.45);
  background: #fff5ee;
  color: var(--copper);
}

.post-list {
  position: relative;
  display: grid;
  gap: 14px;
  padding-left: 42px;
}

.post-list::before {
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 15px;
  width: 2px;
  background: linear-gradient(var(--go), var(--teal), var(--copper), var(--plum));
  content: "";
}

.post-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 138px;
  gap: 18px;
  min-height: 184px;
  padding: 22px 24px;
  box-shadow: none;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.post-card::before {
  position: absolute;
  top: 24px;
  left: -42px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  content: var(--node-index);
  font-family: var(--mono-font);
  font-size: 11px;
  font-weight: 900;
}

.post-card:hover {
  border-color: rgba(0, 173, 216, 0.7);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.post-hitbox {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.post-card-main,
.post-cover {
  position: relative;
  z-index: 2;
  pointer-events: none;
}

.post-card h3 {
  margin: 10px 0 8px;
  font-family: var(--display-font);
  font-size: 28px;
  line-height: 1.18;
  letter-spacing: 0;
}

.post-card p {
  margin: 0 0 16px;
  color: var(--ink-2);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  color: var(--copper);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.post-tags span {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px 9px;
  background: var(--paper-2);
  color: var(--teal);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 800;
}

.post-cover {
  align-self: stretch;
  width: 138px;
  height: 138px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
  object-fit: contain;
  filter: saturate(0.9) contrast(1.05);
}

.empty-state {
  margin: 0;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--muted);
}

.post-view {
  padding: 28px;
  box-shadow: none;
}

.post-page-main {
  padding: 44px 0 64px;
}

body[data-page="post"] .content-status {
  width: 100%;
  max-width: 880px;
  margin: 0 auto 18px;
}

body[data-page="post"] .post-view {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  border: 0;
  border-radius: 0;
  padding: 0;
  background: transparent;
}

body[data-page="post"] .back-link {
  margin-bottom: 26px;
}

body[data-page="post"] .article-shell {
  gap: 28px;
  min-width: 0;
}

body[data-page="post"] .article-header {
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 22px;
}

body[data-page="post"] .article-header h1 {
  max-width: none;
  font-size: 56px;
}

body[data-page="post"] .post-body {
  min-width: 0;
  max-width: none;
  overflow-wrap: anywhere;
}

.empty-article {
  min-height: 42vh;
}

.article-shell {
  display: grid;
  gap: 24px;
}

.article-header {
  display: grid;
  gap: 12px;
}

.article-header h1 {
  max-width: 820px;
  margin: 0;
  font-family: var(--display-font);
  font-size: 52px;
  line-height: 1.06;
  letter-spacing: 0;
}

.post-lead {
  max-width: 780px;
  margin: 0;
  color: var(--ink-2);
  font-size: 18px;
}

.article-cover {
  width: 100%;
  height: 320px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 36px;
  background: #fff;
  object-fit: contain;
}

.post-body {
  max-width: 780px;
}

.post-body h2,
.post-body h3,
.post-body h4 {
  margin: 34px 0 10px;
  font-family: var(--display-font);
  line-height: 1.16;
  letter-spacing: 0;
}

.post-body h2 {
  font-size: 30px;
}

.post-body h3 {
  font-size: 24px;
}

.post-body p,
.post-body li {
  color: #2f403d;
  font-size: 17px;
}

.post-body a {
  color: var(--blue);
  font-weight: 800;
}

.post-body code {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 5px;
  background: var(--paper-2);
  font-family: var(--mono-font);
  font-size: 0.92em;
}

.post-body ul {
  padding-left: 22px;
}

.post-body blockquote {
  margin: 24px 0;
  border-left: 4px solid var(--go);
  padding: 12px 18px;
  background: var(--paper-2);
  color: var(--ink-2);
}

.code-block {
  position: relative;
  overflow: auto;
  border: 1px solid #20302d;
  border-radius: 8px;
  padding: 42px 16px 16px;
  background: #111716;
  color: #dbe8e5;
}

.code-block::before {
  position: absolute;
  top: 12px;
  left: 16px;
  color: #8fbdb5;
  content: attr(data-language);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.code-block code {
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
}

.media-frame {
  margin: 26px 0;
}

.media-frame img,
.media-frame video {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #000;
}

.media-frame figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-family: var(--mono-font);
  font-size: 12px;
}

.projects-section {
  padding: 28px 0 64px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.project-card {
  display: grid;
  gap: 10px;
  min-height: 190px;
  padding: 18px;
  box-shadow: none;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.project-card:hover {
  border-color: rgba(29, 78, 216, 0.55);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.project-card span {
  justify-self: start;
  border: 1px solid rgba(29, 78, 216, 0.2);
  border-radius: 8px;
  padding: 5px 9px;
  background: #e7f0ff;
  color: var(--blue);
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.project-card strong {
  font-family: var(--display-font);
  font-size: 22px;
  line-height: 1.16;
  overflow-wrap: anywhere;
}

.project-card p {
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  border-top: 1px solid var(--line-strong);
  padding: 30px 0 48px;
}

.site-footer strong {
  font-family: var(--display-font);
  font-size: 22px;
}

.site-footer p {
  margin: 6px 0 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

@media (max-width: 980px) {
  .deck-shell {
    grid-template-columns: 1fr;
  }

  .desk-panel {
    position: static;
  }

  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  body {
    background-size: 34px 34px, 34px 34px, auto, auto;
  }

  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .post-lead {
    font-size: 16px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-heading h2 {
    font-size: 34px;
  }

  .post-list {
    gap: 12px;
    padding-left: 0;
  }

  .post-list::before,
  .post-card::before {
    display: none;
  }

  .post-card {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .post-cover {
    width: 100%;
    height: 160px;
    padding: 20px;
  }

  .post-card h3 {
    font-size: 24px;
  }

  .post-view {
    padding: 20px;
  }

  .post-page-main {
    padding: 30px 0 52px;
  }

  body[data-page="post"] .post-view {
    padding: 0;
  }

  body[data-page="post"] .article-header h1 {
    font-size: 34px;
  }

  .article-header h1 {
    font-size: 34px;
  }

  .article-cover {
    height: 220px;
    padding: 24px;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}