/* Anxiety vs Depression: A Six Part Series
   Shared stylesheet for all pages. */

:root {
  --ink: #16222d;
  --ink-soft: #43535f;
  --ink-faint: #6f7f8b;
  --paper: #fbfaf7;
  --card: #ffffff;
  --line: #e3ded4;
  --accent: #1f6f68;
  --accent-dark: #14524c;
  --accent-wash: #eaf4f2;
  --warm: #a3571a;
  --warm-wash: #fbf1e6;
  --danger: #8f2d2d;
  --danger-wash: #fbeceb;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(22, 34, 45, .05), 0 8px 24px rgba(22, 34, 45, .06);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 247, .94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 12px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--sans);
  font-size: 14px;
}

.brand {
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--accent-dark);
  text-decoration: none;
  white-space: nowrap;
}

.brand span {
  display: block;
  font-weight: 500;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.topnav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.topnav a {
  font-family: var(--sans);
  font-size: 13px;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.topnav a:hover {
  background: var(--accent-wash);
  color: var(--accent-dark);
}

.topnav a.current {
  border-color: var(--accent);
  color: var(--accent-dark);
  font-weight: 600;
}

/* ---------- Layout ---------- */

.wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 22px;
}

article { padding: 40px 0 24px; }

/* ---------- Masthead ---------- */

.masthead { padding: 56px 0 8px; }

.eyebrow {
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}

h1 {
  font-size: 2.45rem;
  line-height: 1.16;
  letter-spacing: -.015em;
  margin: 0 0 18px;
  font-weight: 600;
}

.deck {
  font-size: 1.13rem;
  color: var(--ink-soft);
  margin: 0 0 26px;
  line-height: 1.6;
}

.byline {
  font-family: var(--sans);
  font-size: 13.5px;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-bottom: 6px;
}

.part-badge {
  display: inline-block;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  border-radius: 999px;
  padding: 5px 13px;
  margin-bottom: 18px;
}

h2 {
  font-size: 1.52rem;
  line-height: 1.28;
  margin: 44px 0 14px;
  letter-spacing: -.01em;
  font-weight: 600;
}

h3 {
  font-size: 1.14rem;
  margin: 30px 0 8px;
  font-weight: 700;
  font-family: var(--sans);
  letter-spacing: -.005em;
}

h4 {
  font-size: 1.02rem;
  margin: 26px 0 7px;
  font-weight: 700;
  font-family: var(--sans);
  letter-spacing: -.005em;
}

p { margin: 0 0 18px; }

a { color: var(--accent-dark); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

strong { font-weight: 700; }

ul, ol { margin: 0 0 20px; padding-left: 22px; }
li { margin-bottom: 9px; }
li::marker { color: var(--accent); }

blockquote {
  margin: 26px 0;
  padding: 4px 0 4px 22px;
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
  font-style: italic;
}

/* ---------- Cards and callouts ---------- */

.callout {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin: 30px 0;
  box-shadow: var(--shadow);
}

.callout h3, .callout h4 { margin-top: 0; }
.callout h4 { font-size: 1.03rem; }

.callout.key { background: var(--accent-wash); border-color: #cde4e1; }
.callout.warm { background: var(--warm-wash); border-color: #f0dcc4; }
.callout.crisis { background: var(--danger-wash); border-color: #f0c7c4; }
.callout.crisis h3, .callout.crisis h4 { color: var(--danger); }

.callout p:last-child, .callout ul:last-child, .callout ol:last-child { margin-bottom: 0; }

.pull {
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--accent-dark);
  border-left: 3px solid var(--accent);
  padding-left: 18px;
  margin: 30px 0;
}

/* ---------- Comparison table ---------- */

.table-scroll { overflow-x: auto; margin: 28px 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 15px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 12px 15px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #f3f1eb;
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

tbody tr:last-child td { border-bottom: none; }

/* ---------- Stat strip ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin: 30px 0;
}

.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.stat .num {
  font-family: var(--sans);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-dark);
  line-height: 1.1;
  display: block;
  margin-bottom: 6px;
}

.stat .lab {
  font-family: var(--sans);
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.45;
}

/* ---------- References ---------- */

.refs {
  margin: 42px 0 10px;
  padding-top: 22px;
  border-top: 2px solid var(--ink);
}

.refs h2, .refs h3 { margin-top: 0; font-size: 1.2rem; font-family: var(--sans); }

.refs ol { padding-left: 20px; }

.refs li {
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 13px;
}

.refs a { word-break: break-word; }

/* ---------- Series nav (prev/next) ---------- */

.series-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 44px 0 20px;
}

.series-nav a {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  text-decoration: none;
  font-family: var(--sans);
  box-shadow: var(--shadow);
}

.series-nav a:hover { border-color: var(--accent); }

.series-nav .dir {
  display: block;
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 5px;
}

.series-nav .ttl { font-size: 15px; font-weight: 600; color: var(--accent-dark); }
.series-nav .next { text-align: right; }
.series-nav .spacer { visibility: hidden; }

/* ---------- Index list ---------- */

.toc { list-style: none; padding: 0; margin: 34px 0; counter-reset: toc; }

.toc li {
  counter-increment: toc;
  border-top: 1px solid var(--line);
  padding: 20px 0;
  margin: 0;
}

.toc li:last-child { border-bottom: 1px solid var(--line); }

.toc a {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  text-decoration: none;
  align-items: start;
}

.toc .n {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.toc .t {
  display: block;
  font-size: 1.13rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
  letter-spacing: -.01em;
}

.toc a:hover .t { color: var(--accent-dark); }

.toc .s {
  display: block;
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* ---------- Footer ---------- */

.footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 26px 0 60px;
  font-family: var(--sans);
  font-size: 13.5px;
  color: var(--ink-faint);
  line-height: 1.6;
}

.footer p { margin-bottom: 10px; }

/* ---------- Responsive ---------- */

@media (max-width: 620px) {
  body { font-size: 17.5px; }
  h1 { font-size: 1.85rem; }
  h2 { font-size: 1.32rem; }
  .masthead { padding-top: 36px; }
  .topbar-inner { flex-direction: column; align-items: flex-start; gap: 8px; padding: 10px 18px; }
  .topnav { justify-content: flex-start; }
  .series-nav { grid-template-columns: 1fr; }
  .wrap { padding: 0 18px; }
}

@media print {
  .topbar, .series-nav { display: none; }
  body { background: #fff; font-size: 11.5pt; }
  a { color: #000; }
  .callout, .stat, table { box-shadow: none; }
}

/* ---------- Combined section documents ---------- */

.part { padding-top: 8px; }

.part-header {
  margin: 54px 0 26px;
  padding: 24px 0 4px;
  border-top: 4px solid var(--ink);
  break-inside: avoid;
}

.part-header .kicker {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 8px;
}

.part-header h2 {
  margin: 0 0 12px;
  font-size: 1.85rem;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.part-deck {
  font-size: 1.04rem;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0;
}

.doc-toc {
  list-style: none;
  padding: 0;
  margin: 22px 0 10px;
}

.doc-toc li {
  border-top: 1px solid var(--line);
  margin: 0;
}

.doc-toc li:last-child { border-bottom: 1px solid var(--line); }

.doc-toc a {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  align-items: center;
  text-decoration: none;
  padding: 15px 0;
}

.doc-toc .n {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.doc-toc .t {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -.01em;
}

.doc-toc a:hover .t { color: var(--accent-dark); }

.back-top {
  font-family: var(--sans);
  font-size: 13px;
  margin: 30px 0 0;
}

.back-top a { text-decoration: none; color: var(--ink-faint); }
.back-top a:hover { color: var(--accent); }

@media (max-width: 620px) {
  .part-header h2 { font-size: 1.5rem; }
  .part-header { margin-top: 40px; }
}

@media print {
  .back-top { display: none; }
  .part-header { break-before: page; }
  .part:first-of-type .part-header { break-before: auto; }
}

/* ---------- Grouped index blocks ---------- */

.group { margin: 34px 0 46px; }

.group-head {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 24px 26px;
  text-decoration: none;
  box-shadow: var(--shadow);
}

.group-head:hover { border-color: var(--accent); border-left-color: var(--accent-dark); }

.g-range {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.g-title {
  display: block;
  font-size: 1.32rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
  letter-spacing: -.015em;
  margin-bottom: 10px;
}

.group-head:hover .g-title { color: var(--accent-dark); }

.g-desc {
  display: block;
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.g-cta {
  display: block;
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent-dark);
}

.group .toc { margin-top: 0; }
.group .toc li:last-child { border-bottom: 1px solid var(--line); }

@media print {
  .group-head { box-shadow: none; }
}