:root {
  --app-bg: #fbfbf8;
  --app-ink: #101112;
  --app-muted: rgba(16, 17, 18, 0.62);
  --app-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --app-max: 1060px;
  --app-gutter: 22px;
  --app-serif: "Fraunces", ui-serif, Georgia, serif;
  --app-sans: "Source Sans 3", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --app-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

@font-face {
  font-family: "Fraunces";
  src: url("../fonts/Fraunces-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("../fonts/SourceSans3-Variable.woff2") format("woff2");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

body {
  font-family: var(--app-sans);
  background: radial-gradient(900px 420px at 12% 10%, rgba(148, 91, 33, 0.08), transparent 55%),
    radial-gradient(900px 420px at 84% 12%, rgba(0, 0, 0, 0.06), transparent 60%),
    radial-gradient(900px 560px at 40% 90%, rgba(148, 91, 33, 0.05), transparent 62%),
    var(--app-bg);
}

h1,
h2,
h3,
h4 {
  font-family: var(--app-serif);
  font-variation-settings: "wght" 520, "opsz" 88;
  letter-spacing: -0.015em;
}

.shell {
  width: min(var(--app-max), calc(100% - var(--app-gutter) * 2));
  margin: 0 auto;
}

.navInner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

/* Bridge: style the Beautiful Jekyll navbar to match the app shell. */
.navBar {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 0;
  border-bottom: 1px solid rgba(16, 17, 18, 0.08);
  backdrop-filter: blur(10px);
  background: rgba(251, 251, 248, 0.72) !important;
}

.navBar .navbar-collapse {
  justify-content: flex-end;
}

.navBar .navbar-nav {
  gap: 14px;
}

.navbar.navbar-custom {
  font-family: var(--app-sans);
  border-bottom: 1px solid rgba(16, 17, 18, 0.08);
  background: rgba(251, 251, 248, 0.72) !important;
  backdrop-filter: blur(10px);
}

.navbar.navbar-custom .navbar-brand {
  font-family: var(--app-serif);
  font-variation-settings: "wght" 520, "opsz" 88;
  letter-spacing: -0.015em;
  color: var(--app-ink) !important;
}

.navbar.navbar-custom .nav-link {
  position: relative;
  font-family: var(--app-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(16, 17, 18, 0.78) !important;
  font-weight: 500;
  border-radius: 10px;
  transition: background 160ms var(--app-ease), color 160ms var(--app-ease);
  padding: 8px 8px;
}

.navbar.navbar-custom .nav-link:hover {
  background: rgba(16, 17, 18, 0.05);
  color: rgba(16, 17, 18, 0.78) !important;
}

.navbar.navbar-custom .nav-item.active .nav-link,
.navbar.navbar-custom .nav-link.active,
.navbar.navbar-custom .nav-link[aria-current="page"] {
  color: var(--app-ink) !important;
  background: transparent !important;
}

.navbar.navbar-custom .nav-item.active .nav-link::after,
.navbar.navbar-custom .nav-link.active::after,
.navbar.navbar-custom .nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 5px;
  height: 2px;
  background: rgba(148, 91, 33, 0.72);
  border-radius: 99px;
}

.srOnly {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Topics (tags) page */
.tagsPage {
  padding: 6px 0 42px;
}

.tagsHeader {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}

.tagsTitle {
  margin: 0;
  font-size: 40px;
}

.tagsLead {
  margin: -6px 0 0;
  font-size: 15px;
  color: var(--app-muted);
}

.tagsControls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.tagsSearchLabel {
  flex: 1;
  min-width: 240px;
}

.tagsSearch {
  width: min(460px, 100%);
  appearance: none;
  border: 1px solid rgba(16, 17, 18, 0.12);
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--app-ink);
  transition: border-color 160ms var(--app-ease), box-shadow 160ms var(--app-ease), background 160ms var(--app-ease);
}

.tagsSearch::placeholder {
  color: rgba(16, 17, 18, 0.42);
}

.tagsSearch:focus {
  outline: none;
  border-color: rgba(148, 91, 33, 0.32);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(148, 91, 33, 0.11);
}

.tagsMeta {
  font-family: var(--app-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(16, 17, 18, 0.58);
}

.tagsChips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 16px;
}

.tagChip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(16, 17, 18, 0.12);
  background: rgba(255, 255, 255, 0.55);
  color: rgba(16, 17, 18, 0.74);
  font-family: var(--app-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    transform 160ms var(--app-ease),
    background 160ms var(--app-ease),
    border-color 160ms var(--app-ease),
    color 160ms var(--app-ease);
}

.tagChip:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.75);
  border-color: rgba(16, 17, 18, 0.2);
  color: rgba(16, 17, 18, 0.9);
}

.tagChip.isActive {
  background: rgba(148, 91, 33, 0.08);
  border-color: rgba(148, 91, 33, 0.28);
  color: rgba(16, 17, 18, 0.92);
}

.tagChipCount {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 7px;
  border-radius: 999px;
  background: rgba(148, 91, 33, 0.1);
  color: rgba(148, 91, 33, 0.86);
  letter-spacing: 0;
}

.tagsHint {
  padding: 12px 0 4px;
  color: rgba(16, 17, 18, 0.6);
  font-size: 14px;
}

.tagsResults {
  display: grid;
  gap: 10px;
  padding-top: 6px;
}

.tagsResultsBar {
  display: flex;
  justify-content: flex-end;
}

.tagsClear {
  appearance: none;
  border: 1px solid rgba(16, 17, 18, 0.12);
  border-radius: 999px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.55);
  color: rgba(16, 17, 18, 0.72);
  font-family: var(--app-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition:
    transform 160ms var(--app-ease),
    background 160ms var(--app-ease),
    border-color 160ms var(--app-ease),
    color 160ms var(--app-ease);
}

.tagsClear:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.75);
  border-color: rgba(16, 17, 18, 0.2);
  color: rgba(16, 17, 18, 0.9);
}

.tagsClear:focus {
  outline: none;
}

.tagsClear:focus-visible {
  border-color: rgba(148, 91, 33, 0.32);
  box-shadow: 0 0 0 4px rgba(148, 91, 33, 0.11);
}

.tagsGroups {
  display: grid;
  gap: 10px;
}

.tagGroup {
  border: 1px solid rgba(16, 17, 18, 0.1);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.52);
  overflow: hidden;
}

.tagGroupSummary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px;
  transition: background 160ms var(--app-ease);
}

.tagGroupSummary::-webkit-details-marker {
  display: none;
}

.tagGroupSummary:hover {
  background: rgba(16, 17, 18, 0.03);
}

.tagGroup[open] .tagGroupSummary {
  background: rgba(148, 91, 33, 0.06);
}

.tagGroupName {
  font-family: var(--app-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(16, 17, 18, 0.8);
}

.tagGroupCount {
  font-family: var(--app-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(16, 17, 18, 0.5);
}

.tagPosts {
  margin: 0;
  padding: 0 12px 12px;
  list-style: none;
  display: grid;
  gap: 8px;
}

.tagPost {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 6px 8px;
  border-radius: 12px;
  transition: background 160ms var(--app-ease);
}

.tagPost:hover {
  background: rgba(16, 17, 18, 0.03);
}

.tagPostLink {
  color: rgba(16, 17, 18, 0.92);
  text-decoration: none;
}

.tagPostLink:hover {
  text-decoration: underline;
  text-decoration-color: rgba(148, 91, 33, 0.6);
  text-underline-offset: 3px;
}

.tagPostDate {
  font-size: 12px;
  color: rgba(16, 17, 18, 0.55);
  white-space: nowrap;
}

@media (max-width: 680px) {
  .tagsTitle {
    font-size: 32px;
  }

  .tagPost {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }
}