/* Blauwdruk, a blueprint-style theme for Zola =). Perpetually work in progress, probably anyways. */

:root {
  color-scheme: light;

  --paper: #f7f5ef;
  --ink: #242c48;
  --muted: #5d6890;
  --blue: #0b1fd6;
  --blue-deep: #051290;
  --line: color-mix(in srgb, var(--blue) 38%, transparent);
  --grid: color-mix(in srgb, var(--blue) 10%, transparent);
  --grid-major: color-mix(in srgb, var(--blue) 17%, transparent);
  --wash: color-mix(in srgb, var(--blue) 6%, var(--paper));

  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
  --sans: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  /* Graph paper in the page margin: a minor line every 24 px and a major line every 120 px */
  background-image:
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:
    120px 120px,
    120px 120px,
    24px 24px,
    24px 24px;
  font: 400 1rem/1.7 var(--sans);
  -webkit-text-size-adjust: 100%;
}

.sheet {
  position: relative;
  max-width: 44rem;
  margin: clamp(1.5rem, 5vw, 4rem) auto;
  padding: clamp(1.25rem, 4.5vw, 3rem);
  background: var(--paper);
  border: 1px solid var(--line);
}

.sheet::before,
.sheet::after {
  content: "";
  position: absolute;
  width: 15px;
  height: 15px;
  background:
    linear-gradient(var(--blue), var(--blue)) center / 100% 1px no-repeat,
    linear-gradient(var(--blue), var(--blue)) center / 1px 100% no-repeat;
}

.sheet::before {
  top: -8px;
  left: -8px;
}

.sheet::after {
  bottom: -8px;
  right: -8px;
}

/* Links and focus */
a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--blue-deep);
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

::selection {
  background: var(--blue);
  color: var(--paper);
}

/* Header */
.titlebar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 0.75rem;
  border-bottom: 3px double var(--line);
  margin-bottom: 2.25rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.titlebar .site-name {
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.titlebar .site-name:hover {
  color: var(--blue-deep);
}

.titlebar nav {
  display: flex;
  gap: 1.25rem;
}

.titlebar nav a {
  text-decoration: none;
}

.titlebar nav a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Page titles */
.page-title {
  font-family: var(--mono);
  font-size: clamp(1.25rem, 3.5vw, 1.6rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-wrap: balance;
  margin: 0 0 0.5rem;
}

/* Intro text on list pages. */
.intro {
  margin-bottom: 2.25rem;
}

/* The sheet index */
.sheet-index {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sheet-index li + li {
  margin-top: 0.7rem;
}

.sheet-index a {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
}

.sheet-index .t {
  font-weight: 600;
}

.sheet-index a:hover .t {
  color: var(--blue-deep);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.sheet-index .leader {
  flex: 1 1 2rem;
  border-bottom: 1px dotted var(--line);
}

.sheet-index time,
.sheet-index .count {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Post metadat */
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  margin: 0 0 2.25rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}

.meta .mark {
  color: var(--blue);
}

/* Article body. */
.prose {
  overflow-wrap: break-word;
}

.prose > :first-child {
  margin-top: 0;
}

.prose > :last-child {
  margin-bottom: 0;
}

.prose h2,
.prose h3 {
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-wrap: balance;
  margin: 2.4rem 0 0.8rem;
}

.prose h2 {
  font-size: 0.95rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.35rem;
}

.prose h3 {
  font-size: 0.85rem;
  color: var(--muted);
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 0.2rem 0 0.2rem 1.1rem;
  border-left: 2px solid var(--blue);
  color: var(--muted);
}

.prose code {
  font-family: var(--mono);
  font-size: 0.875em;
  background: var(--wash);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}

.prose pre {
  background: var(--wash);
  border: 1px solid var(--line);
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.55;
}

.prose pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
}

.prose table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.5rem 0;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

.prose th {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
}

.prose th,
.prose td {
  border: 1px solid var(--line);
  padding: 0.45rem 0.65rem;
}

.prose hr {
  border: 0;
  border-top: 1px dashed var(--line);
  margin: 2.5rem 0;
}

.prose img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

.prose ul,
.prose ol {
  padding-left: 1.4rem;
}

.prose li + li {
  margin-top: 0.3rem;
}

/* Archive (compact list of posts grouped by year) */
.archive-year {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  margin: 2.2rem 0 0.5rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--line);
}

.archive {
  list-style: none;
  margin: 0;
  padding: 0;
}

.archive li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 0.9rem;
  padding: 0.45rem 0;
  border-bottom: 1px dotted var(--line);
  font-size: 0.95rem;
}

.archive li:last-child {
  border-bottom: 0;
}

.archive time {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.archive li > a {
  color: var(--ink);
  font-weight: 500;
  text-decoration: none;
}

.archive li > a:hover {
  color: var(--blue-deep);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.archive .tags {
  display: flex;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.75rem;
}

.archive .tags a {
  text-decoration: none;
}

.archive .tags a:hover {
  text-decoration: underline;
}

@media (max-width: 540px) {
  .archive li {
    grid-template-columns: auto 1fr;
  }

  .archive .tags {
    grid-column: 2;
  }
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-top: 2.5rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.pagination .page-no {
  color: var(--muted);
}

/* Footer */
.titleblock {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 3rem;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.titleblock > div {
  padding: 0.55rem 0.8rem;
}

.titleblock > div + div {
  border-left: 1px solid var(--line);
}

.titleblock .label,
.specblock .label {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.1rem;
}

@media (max-width: 480px) {
  .titleblock {
    grid-template-columns: 1fr;
  }

  .titleblock > div + div {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}


.masthead {
  margin: 0 0 2.25rem;
}

.masthead svg {
  display: block;
  width: 100%;
  height: auto;
  color: var(--blue);
}

.masthead .art {
  display: none;
}

.masthead:not(.js) .art:first-child {
  display: block;
}

.masthead.js .art.show {
  display: block;
}

.fig-caption {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
  margin-top: 0.6rem;
}

.colophon {
  text-align: center;
  color: var(--blue);
  margin-top: 3rem;
}

.colophon svg {
  max-width: 100%;
  height: auto;
}

.colophon + .titleblock {
  margin-top: 0.9rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 1.25rem;
}

.plot-card {
  display: block;
  border: 1px solid var(--line);
  padding: 0.75rem;
  color: var(--ink);
  text-decoration: none;
}

a.plot-card:hover {
  border-color: var(--blue);
}

.plot-card img,
.plot-card svg {
  display: block;
  width: 100%;
  height: auto;
}

.plot-card .plot-title {
  display: block;
  margin-top: 0.6rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.plot-card .plot-meta {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.plot-figure {
  margin: 0 0 1.5rem;
  padding: 1rem;
  border: 1px solid var(--line);
}

.plot-figure img,
.plot-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

.specblock {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  margin-top: 1.75rem;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.specblock > div {
  padding: 0.55rem 0.8rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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