:root {
  --background: oklch(0.985 0.008 85);
  --foreground: oklch(0.22 0.02 55);
  --muted: oklch(0.96 0.008 85);
  --muted-foreground: oklch(0.5 0.02 55);
  --border: oklch(0.9 0.012 85);
  --accent: oklch(0.45 0.07 250);
  --accent-fg: oklch(0.98 0.01 85);
  --card: var(--background);
  --ring: oklch(0.45 0.07 250 / 0.35);
  --quote: oklch(0.32 0.03 55);
  --meta: oklch(0.66 0.012 55);
  --danger: oklch(0.5 0.16 25);
  --font-body: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --font-heading: var(--font-body);
  --font-site-title: var(--font-body);
  --font-ui: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, monospace;
  --content-max-width: 42rem;
  --site-padding: 1.5rem;
  --content-gap: 2rem;
  --media-radius: 0.5rem;
  --media-veil: oklch(0.12 0.01 70 / 0.86);
  --avatar-size: 28px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: oklch(0.18 0.012 70);
    --foreground: oklch(0.93 0.01 85);
    --muted: oklch(0.24 0.012 70);
    --muted-foreground: oklch(0.72 0.02 75);
    --border: oklch(0.32 0.015 70);
    --accent: oklch(0.78 0.06 250);
    --accent-fg: oklch(0.18 0.02 250);
    --quote: oklch(0.9 0.015 85);
    --meta: oklch(0.58 0.01 75);
    --danger: oklch(0.72 0.14 25);
    --ring: oklch(0.78 0.06 250 / 0.4);
  }
}

* { box-sizing: border-box; }
html { color-scheme: light dark; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-ui);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font: inherit; color: inherit; }

.wrap {
  width: min(var(--content-max-width), 100% - 2 * var(--site-padding));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in oklch, var(--background) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}
.brand:hover { text-decoration: none; }
.avatar {
  width: var(--avatar-size);
  height: var(--avatar-size);
  border-radius: 50%;
  background: var(--foreground);
  color: var(--background);
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 650;
  flex: 0 0 auto;
}
.brand-name {
  font-family: var(--font-site-title);
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav a, .nav button.linkish {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted-foreground);
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  background: none;
  border: 0;
  cursor: pointer;
  text-decoration: none;
}
.nav a:hover, .nav a.is-active, .nav button.linkish:hover {
  color: var(--foreground);
  background: var(--muted);
  text-decoration: none;
}

.page { padding: 1.75rem 0 4rem; }
.tagline {
  color: var(--muted-foreground);
  margin: 0 0 2rem;
  font-size: 0.95rem;
}

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--meta);
  font-weight: 600;
  margin: 0 0 0.85rem;
}
.featured-strip {
  margin-bottom: 2.25rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
}
.featured-index {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0;
  list-style: none;
  margin: 0;
  padding: 0;
}
.featured-index li {
  display: flex;
  align-items: baseline;
}
.featured-index li:not(:last-child)::after {
  content: "·";
  margin: 0 0.55rem;
  color: var(--meta);
  font-weight: 400;
}
.featured-index a {
  color: inherit;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.55;
  text-wrap: balance;
}
.featured-index a:hover { text-decoration: none; }
@media (hover: hover) {
  .featured-index a:hover { color: var(--accent); }
}

.feed { display: flex; flex-direction: column; }
.feed > * {
  padding: 0 0 1.85rem;
  margin-bottom: 1.85rem;
  border-bottom: 1px solid var(--border);
}
.feed > *:last-child {
  border-bottom: 0;
  margin-bottom: 0;
}
.thread {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  position: relative;
}
.thread.is-connected::before {
  content: "";
  position: absolute;
  left: 0.35rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 1px;
  background: var(--border);
}
.thread.is-connected .post { padding-left: 1.25rem; }
.thread-more {
  font-size: 0.85rem;
  color: var(--meta);
  padding-left: 1.25rem;
}

.post { position: relative; }
.post-top {
  display: flex;
  justify-content: flex-end;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
}
.post-date {
  font-size: inherit;
  color: inherit;
  font-variant-numeric: tabular-nums;
}
.post-tools {
  display: flex;
  gap: 0.5rem;
  font-size: 0.78rem;
}
.post-tools a, .post-tools button {
  color: var(--meta);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
.p-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 0.5rem;
}
.p-name a { color: inherit; }
.link-title {
  font-size: 1.42rem;
}
.link-host {
  margin: -0.2rem 0 0.75rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--meta);
}

.prose {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.prose > *:first-child { margin-top: 0; }
.prose > *:last-child { margin-bottom: 0; }
.prose p { margin: 0.7em 0; }
.prose h2, .prose h3 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.prose code, .prose pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.prose pre {
  background: var(--muted);
  padding: 0.85rem 1rem;
  overflow: auto;
  border-radius: 8px;
}
.prose.is-lede {
  --lede-line: 1.7em;
  line-height: 1.7;
  max-height: calc(var(--lede-line) * 3);
  overflow: hidden;
  mask-image: linear-gradient(to bottom, #000 0, #000 calc(var(--lede-line) * 2), transparent calc(var(--lede-line) * 3));
}
.prose.is-lede p { margin: 0; }
.read-on {
  display: block;
  margin-top: 0.75rem;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: center;
}
.read-on:hover { text-decoration: none; }
@media (hover: hover) {
  .read-on:hover { color: var(--foreground); }
}

.post-page.is-reading {
  padding-top: 0.4rem;
}
.post-page.is-reading .p-name {
  font-size: 2rem;
  line-height: 1.25;
  margin-bottom: 1.35rem;
  text-wrap: balance;
}
.post-page.is-reading .prose {
  font-size: 1.18rem;
  line-height: 1.85;
}
.post-page.is-reading .prose p { margin: 0.95em 0; }
.post-page.is-reading .post-foot {
  margin-top: 2.4rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

[data-format="quote"] .quote-text {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1.28rem;
  line-height: 1.62;
  color: var(--quote);
  margin: 0 0 0.5rem;
  padding: 0.85rem 1rem;
  background: color-mix(in oklch, var(--muted) 72%, var(--background));
  border-radius: 0.35rem;
}
.quote-cite {
  display: block;
  font-style: normal;
  font-size: 0.82rem;
  color: var(--meta);
  margin: 0 0 0.85rem 0.15rem;
}
.quote-cite::before {
  content: "— ";
}

.post-media {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.85rem;
}
.post-media video {
  border-radius: var(--media-radius);
  border: 1px solid var(--border);
  width: 100%;
}

.media-stack {
  display: grid;
  gap: 0.5rem;
}
.media-card {
  appearance: none;
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  cursor: zoom-in;
  border-radius: var(--media-radius);
}
.media-card:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
}
.media-card img {
  border-radius: var(--media-radius);
  border: 1px solid var(--border);
  width: 100%;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
}
.media-stack.is-framed .media-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--media-veil);
  border: 1px solid var(--border);
}
.media-stack.is-framed.is-frame-3x4 .media-card {
  aspect-ratio: 3 / 4;
}
.media-stack.is-framed .media-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  background: transparent;
  border: 0;
  border-radius: 0;
}
.media-stack.is-stack {
  --stack-inset: 1.15rem;
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  isolation: isolate;
  padding: 1.15rem var(--stack-inset) 1.25rem;
  min-height: 8rem;
  touch-action: pan-y;
  cursor: pointer;
}
.media-stack.is-stack.is-dragging,
.media-stack.is-stack.is-dragging .media-card { cursor: pointer; }
.media-stack.is-stack .media-card {
  position: relative;
  width: 100%;
  transform-origin: center center;
  box-shadow: 0 8px 20px color-mix(in oklch, var(--foreground) 12%, transparent);
  transition: transform 780ms cubic-bezier(0.22, 1, 0.36, 1);
}
.media-stack.is-stack .media-card:not(.is-front) {
  position: absolute;
  top: 1.15rem;
  left: var(--stack-inset);
  right: var(--stack-inset);
  width: auto;
  height: calc(100% - 2.4rem);
  cursor: zoom-in;
  transform:
    translateX(calc(var(--stack-sign, -1) * var(--stack-i, 1) * 0.45rem))
    rotate(calc(var(--stack-sign, -1) * (1.2deg + var(--stack-i, 1) * 1.1deg)));
}
.media-stack.is-stack.is-framed .media-card:not(.is-front) {
  aspect-ratio: auto;
}
.media-stack.is-stack .media-card.is-front {
  position: relative;
  z-index: 5;
  transform: none;
}
.stack-nav {
  position: absolute;
  top: 50%;
  z-index: 8;
  width: 2rem;
  height: 2rem;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: oklch(1 0 0 / 0.94);
  color: oklch(0.22 0.02 55);
  box-shadow: 0 2px 10px oklch(0 0 0 / 0.14);
  cursor: pointer;
  font-size: 1.15rem;
  line-height: 1;
  transform: translateY(-50%);
}
.stack-nav.is-prev { left: calc(var(--stack-inset) + 0.4rem); }
.stack-nav.is-next { right: calc(var(--stack-inset) + 0.4rem); }
.stack-nav:hover { transform: translateY(-50%) scale(1.06); }
.stack-nav:active { transform: translateY(-50%) scale(0.95); }
.stack-nav:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  .media-stack.is-stack .media-card { transition: none; }
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 2.5rem var(--site-padding);
  background: var(--media-veil);
  cursor: zoom-out;
  touch-action: pan-y;
}
.lightbox[hidden] { display: none; }
.lightbox img {
  width: min(var(--content-max-width), calc(100vw - 2 * var(--site-padding)));
  max-height: 88vh;
  height: auto;
  object-fit: contain;
  border-radius: 0.65rem;
  box-shadow: 0 18px 60px oklch(0 0 0 / 0.35);
  cursor: grab;
}
.lightbox-close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 2.4rem;
  height: 2.4rem;
  border: 0;
  border-radius: 999px;
  background: oklch(1 0 0 / 0.12);
  color: oklch(0.98 0 0);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}
.lightbox-close:focus-visible,
.lightbox-nav:focus-visible {
  outline: 2px solid oklch(1 0 0 / 0.7);
  outline-offset: 2px;
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.6rem;
  height: 2.6rem;
  border: 0;
  border-radius: 999px;
  background: oklch(1 0 0 / 0.12);
  color: oklch(0.98 0 0);
  font-size: 1.6rem;
  cursor: pointer;
}
.lightbox-nav.is-prev { left: 0.85rem; }
.lightbox-nav.is-next { right: 0.85rem; }
.lightbox-nav[hidden] { display: none; }
.lightbox-count {
  position: absolute;
  bottom: 0.85rem;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  color: oklch(0.98 0 0 / 0.78);
  font-size: 0.82rem;
}
body.is-lightbox { overflow: hidden; }

.post-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin-top: 0.85rem;
  font-size: 0.8rem;
  color: var(--meta);
}
.post-foot a { color: var(--meta); }
.chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.05rem 0.55rem;
}
.badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.post-page .post { padding-bottom: 1.5rem; }
.thread-follow { margin-top: 1.5rem; }

.page-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 0.4rem;
}
.lede {
  color: var(--muted-foreground);
  margin: 0 0 1.5rem;
}

.filters { display: flex; gap: 0.35rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.filters a {
  color: var(--muted-foreground);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.85rem;
}
.filters a.is-active, .filters a:hover {
  color: var(--foreground);
  border-color: var(--foreground);
  text-decoration: none;
}

.collection-list { display: flex; flex-direction: column; gap: 0; }
.collection-row {
  display: block;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  color: inherit;
}
.collection-row:hover { text-decoration: none; }
.collection-row h2 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0 0 0.2rem;
}
.collection-row p { margin: 0; color: var(--muted-foreground); font-size: 0.92rem; }

.form { display: flex; flex-direction: column; gap: 0.9rem; }
.tabs { display: flex; gap: 0.25rem; }
.tabs button {
  border: 1px solid var(--border);
  background: var(--background);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  cursor: pointer;
}
.tabs button.is-on {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}
label.field { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.82rem; color: var(--muted-foreground); }
input[type="text"], input[type="url"], input[type="password"], textarea, select {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--background);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
}
textarea {
  min-height: 8rem;
  resize: vertical;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
}
.checks { display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; }
.checks label { display: flex; align-items: center; gap: 0.35rem; color: var(--foreground); font-size: 0.9rem; }
.row-actions {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
  position: sticky;
  bottom: 0;
  padding: 0.75rem 0 0.2rem;
  background: linear-gradient(to top, var(--background) 70%, transparent);
}
.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--muted);
  color: var(--foreground);
}
.btn-primary { background: var(--foreground); color: var(--background); }
.btn-danger { background: none; color: var(--danger); }
.alert {
  background: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 0.85rem;
  color: var(--danger);
}

.parent-preview {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  color: var(--muted-foreground);
  font-size: 0.92rem;
}

.fab {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 50%;
  background: var(--foreground);
  color: var(--background);
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  line-height: 1;
  text-decoration: none;
  box-shadow: 0 8px 24px color-mix(in oklch, var(--foreground) 18%, transparent);
}
.fab:hover { text-decoration: none; }

.site-footer {
  color: var(--muted-foreground);
  font-size: 0.8rem;
  padding: 0 0 2.5rem;
}
.empty { color: var(--muted-foreground); padding: 2rem 0; }

.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
}
.pager-status { color: var(--muted-foreground); }
.pager .is-disabled { color: var(--muted-foreground); }

@media (max-width: 640px) {
  :root { --site-padding: 1.1rem; }
  .p-name { font-size: 1.2rem; }
  .post-page.is-reading .p-name { font-size: 1.55rem; }
  .post-page.is-reading .prose { font-size: 1.08rem; }
  .nav a { padding: 0.3rem 0.4rem; }
}