/* Reports that Matter — design system
 *
 * Visual direction: pared-down editorial, after costarastrology.com.
 * Off-white canvas, mid-grey ink (never pure black), classical serif for
 * substance, uppercase mono for chrome. No rounded corners, no shadows,
 * no gradients. Hairline rules and large whitespace do the structural work.
 */

:root {
  --canvas: #f7f7f7;
  --surface: #ffffff;
  --inverse: #141414;

  --ink: #252525;
  --body: #575657;
  --muted: #8a8a8c;
  --rule: #e0e0e0;
  --rule-strong: #cfcfcf;

  --serif: "EB Garamond", "Times New Roman", Times, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "Andale Mono", ui-monospace, SFMono-Regular, monospace;

  --measure: 37rem;
  --gutter: 6vw;

  color-scheme: light;
}

/* ---------- reset ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--body);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 0;
}

/* ---------- primitives ---------- */

.mono {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  line-height: 1.35;
}

.serif {
  font-family: var(--serif);
  font-weight: 400;
}

.rule {
  border-top: 1px solid var(--rule);
}

.wrap {
  padding-inline: var(--gutter);
}

.measure {
  max-width: var(--measure);
  margin-inline: auto;
}

/* box-sizing: border-box means the gutter would otherwise eat into the
 * measure, leaving the prose column far too narrow on wide screens. */
.wrap.measure {
  max-width: calc(var(--measure) + 2 * var(--gutter));
}

/* ---------- header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.4rem;
  border-bottom: 1px solid var(--rule);
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* The seal is a bolder, more geometric mark than the typography around it.
 * Kept small it reads as an official stamp — apt for inquiry documents —
 * rather than competing with the wordmark. */
.wordmark img {
  width: 30px;
  height: 30px;
  flex: none;
}

@media (max-width: 30rem) {
  .wordmark span { display: none; }
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.site-nav a:hover {
  opacity: 0.55;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  padding: 0.9rem 1.75rem;
  border: 1px solid var(--inverse);
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn:hover {
  background: var(--inverse);
  color: var(--canvas);
}

.btn-filled {
  background: var(--inverse);
  color: var(--canvas);
}

.btn-filled:hover {
  background: transparent;
  color: var(--ink);
}

/* ---------- hero ---------- */

.hero {
  padding-block: clamp(4rem, 11vw, 9rem) clamp(3rem, 7vw, 6rem);
  text-align: center;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 6.2vw, 4.75rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  max-width: 20ch;
  margin-inline: auto;
  text-wrap: balance;
}

.hero .standfirst {
  margin: 1.75rem auto 0;
  max-width: 46ch;
  font-size: 0.95rem;
  color: var(--body);
  text-wrap: pretty;
}

.hero .actions {
  margin-top: 2.75rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- sections ---------- */

.section {
  padding-block: clamp(3.5rem, 8vw, 7rem);
  border-top: 1px solid var(--rule);
}

.section-label {
  color: var(--muted);
  margin-bottom: 2.5rem;
}

.section h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  line-height: 1.1;
  color: var(--ink);
  margin: 0 0 1.25rem;
  max-width: 24ch;
}

.section p {
  max-width: 54ch;
  margin: 0 0 1rem;
}

/* ---------- editorial columns ---------- */

.cols {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
}

@media (min-width: 56rem) {
  .cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .cols-aside {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  }
}

.col h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.4rem;
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 0.6rem;
}

.col p {
  margin: 0;
  max-width: 42ch;
}

/* ---------- report index ---------- */

.report-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.report-list li {
  border-bottom: 1px solid var(--rule);
}

.report-list a {
  display: grid;
  gap: 0.5rem 2rem;
  grid-template-columns: 1fr;
  padding-block: 2rem;
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.report-list a:hover {
  opacity: 0.55;
}

@media (min-width: 48rem) {
  .report-list a {
    grid-template-columns: minmax(0, 3fr) minmax(0, 1.4fr) auto;
    align-items: baseline;
  }
}

.report-list .title {
  font-family: var(--serif);
  font-size: 1.55rem;
  line-height: 1.15;
  color: var(--ink);
}

.report-list .meta {
  color: var(--muted);
}

.report-list .cue {
  color: var(--ink);
}

/* ---------- report page ---------- */

.report-header {
  padding-block: clamp(3rem, 7vw, 5.5rem) clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--rule);
}

.report-header .kicker {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.report-header h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.1rem, 4.6vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  max-width: 22ch;
  text-wrap: balance;
}

.report-header .byline {
  margin-top: 1.5rem;
  color: var(--muted);
}

/* long-form prose */

.prose {
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.72;
  color: var(--ink);
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(4rem, 10vw, 8rem);
}

.prose p {
  margin: 0 0 1.35rem;
  position: relative;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.15;
  margin: 3rem 0 1rem;
  text-wrap: balance;
}

.prose h1 { font-size: 2.1rem; }
.prose h2 { font-size: 1.75rem; }
.prose h3 { font-size: 1.4rem; }
.prose h4 {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.prose ul,
.prose ol {
  margin: 0 0 1.35rem;
  padding-left: 1.4rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

.prose blockquote {
  margin: 2rem 0;
  padding-left: 1.5rem;
  border-left: 1px solid var(--rule-strong);
  color: var(--body);
}

.prose a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--rule-strong);
}

.prose a:hover {
  text-decoration-color: var(--ink);
}

.prose hr {
  margin: 3rem 0;
}

/* ---------- paragraph permalinks ---------- */

.prose p[id] .permalink {
  position: absolute;
  left: -2.25rem;
  top: 0.35em;
  font-family: var(--mono);
  font-size: 0.7rem;
  line-height: 1;
  color: var(--muted);
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.prose p[id]:hover .permalink,
.prose p[id] .permalink:focus {
  opacity: 1;
}

.prose p[id]:target {
  background: rgba(255, 232, 138, 0.32);
  box-shadow: 0 0 0 0.4rem rgba(255, 232, 138, 0.32);
}

@media (max-width: 52rem) {
  .prose p[id] .permalink {
    display: none;
  }
}

/* ---------- section navigation ---------- */

.section-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: start;
  padding-block: 2rem 5rem;
  border-top: 1px solid var(--rule);
}

.section-nav a {
  color: var(--muted);
  text-decoration: none;
  line-height: 1.5;
}

.section-nav a:hover {
  color: var(--ink);
}

.section-nav .next {
  text-align: right;
}

.section-nav .contents {
  color: var(--ink);
  white-space: nowrap;
}

@media (max-width: 40rem) {
  .section-nav {
    grid-template-columns: 1fr;
  }
  .section-nav .next {
    text-align: left;
  }
}

/* ---------- sidenotes ---------- */

/* The reading column stays put; notes live in the right margin where there is
 * room for them. Below that width there is no margin, so a note becomes an
 * inline block the reader opens on tap. */

.prose {
  --sidenote-width: 15rem;
  --sidenote-gap: 2rem;
}

.sidenote-toggle {
  cursor: pointer;
}

.sidenote-toggle sup {
  font-family: var(--mono);
  font-size: 0.62em;
  color: var(--muted);
  padding-inline: 0.1em;
  vertical-align: super;
  line-height: 0;
}

.sidenote-toggle:hover sup {
  color: var(--ink);
}

.sidenote-checkbox {
  display: none;
}

.sidenote {
  font-family: var(--sans);
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--body);
}

.sidenote sup {
  font-family: var(--mono);
  font-size: 0.72em;
  color: var(--muted);
  margin-right: 0.35em;
}

@media (min-width: 68rem) {
  .prose {
    /* Shift the column left by half the margin so the page stays balanced
     * once the notes are hanging off the right of it. */
    margin-left: max(0px, calc(50% - (var(--measure) + var(--sidenote-width) + var(--sidenote-gap)) / 2));
    margin-right: 0;
  }

  .sidenote {
    float: right;
    clear: right;
    width: var(--sidenote-width);
    margin-right: calc(-1 * (var(--sidenote-width) + var(--sidenote-gap)));
    margin-bottom: 1rem;
    position: relative;
    text-align: left;
  }

  .sidenote-toggle {
    cursor: default;
  }
}

@media (max-width: 67.99rem) {
  /* No margin to put them in: collapsed until asked for. */
  .sidenote {
    display: none;
    margin: 0.9rem 0;
    padding: 0.75rem 0.9rem;
    border-left: 2px solid var(--rule-strong);
    background: rgba(0, 0, 0, 0.015);
  }

  .sidenote-checkbox:checked + .sidenote {
    display: block;
  }

  .sidenote-toggle sup {
    text-decoration: underline;
    text-underline-offset: 0.2em;
  }
}

.orphan-notes {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.85rem;
}

.orphan-notes h2 {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.orphan-notes-why {
  color: var(--muted);
  max-width: 50ch;
}

.orphan-notes ol {
  padding-left: 0;
  list-style: none;
}

.orphan-notes li {
  margin-bottom: 0.6rem;
  color: var(--body);
}

/* ---------- printed page markers ---------- */

.page-marker {
  float: left;
  clear: left;
  margin-left: -3.25rem;
  width: 2.5rem;
  text-align: right;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  text-decoration: none;
  padding-top: 0.45em;
}

.page-marker:hover {
  color: var(--ink);
}

.page-marker:target {
  color: var(--ink);
  font-weight: 500;
}

@media (max-width: 52rem) {
  .page-marker {
    float: none;
    display: block;
    margin: 1.75rem 0 0.5rem;
    width: auto;
    text-align: left;
    border-top: 1px solid var(--rule);
    padding-top: 0.5rem;
  }
}

/* ---------- highlight-to-share ---------- */

.share-pop {
  position: absolute;
  z-index: 40;
  display: none;
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--inverse);
  transform: translate(-50%, -100%);
}

.share-pop[data-open="true"] {
  display: flex;
}

.share-pop button {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.6rem 0.9rem;
  border: 0;
  background: var(--inverse);
  color: var(--canvas);
  cursor: pointer;
  white-space: nowrap;
}

.share-pop button:hover {
  background: var(--ink);
}

::selection {
  background: rgba(255, 232, 138, 0.55);
  color: var(--ink);
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 3.5rem 4.5rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
  justify-content: space-between;
  align-items: flex-start;
}

.site-footer p {
  margin: 0;
  max-width: 44ch;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.site-footer a {
  text-decoration: none;
  color: var(--ink);
}

.site-footer a:hover {
  opacity: 0.55;
}

/* ---------- utilities ---------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}