:root {
  --ink: #151310;
  --paper: #f4efe5;
  --paper-soft: #fbf8f0;
  --panel: #fffdf7;
  --muted: #6d6256;
  --line: #d9ccb9;
  --brass: #b97c28;
  --blue: #315d91;
  --clay: #ae5a35;
  --green: #557a41;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #fff8ea 0, var(--paper) 440px),
    var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

.case-nav,
.case-body,
.case-footer {
  width: min(980px, calc(100% - 36px));
  margin: 0 auto;
}

.case-nav {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 28px 0 56px;
  color: var(--muted);
  font-size: 14px;
}

.case-nav strong {
  color: var(--ink);
}

.case-nav div {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.case-body {
  padding-bottom: 76px;
}

.case-body > h1:first-child {
  max-width: 860px;
  margin: 0 0 24px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 0.94;
  letter-spacing: 0;
}

.case-body > h1:first-child::before {
  content: "Case study";
  display: block;
  margin-bottom: 18px;
  color: var(--brass);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  line-height: 1.2;
  text-transform: uppercase;
}

.case-body > h2 {
  margin: 54px 0 14px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1;
  letter-spacing: 0;
}

.case-body > h3 {
  margin: 30px 0 10px;
  font-size: 22px;
  letter-spacing: 0;
}

.case-body p,
.case-body li {
  color: var(--muted);
  font-size: 18px;
}

.case-body p:first-of-type {
  max-width: 760px;
  color: #342c24;
  font-size: clamp(20px, 2.3vw, 25px);
  line-height: 1.45;
}

.case-body ul,
.case-body ol {
  display: grid;
  gap: 10px;
  padding-left: 24px;
}

.case-body pre {
  overflow: auto;
  margin: 18px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 18px;
}

.case-body code {
  color: #2d271f;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
  white-space: pre-wrap;
}

.case-body blockquote {
  margin: 28px 0;
  border-left: 4px solid var(--brass);
  background: var(--panel);
  padding: 16px 18px;
  color: var(--muted);
}

.case-body table {
  width: 100%;
  border-collapse: collapse;
  overflow-x: auto;
  display: block;
}

.case-body th,
.case-body td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
}

.case-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 32px 0 46px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 720px) {
  .case-nav,
  .case-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .case-nav div {
    justify-content: flex-start;
  }

  .case-body > h1:first-child {
    font-size: clamp(40px, 12vw, 58px);
  }
}