:root {
  --background: #fbfbfa;
  --text: #20252b;
  --muted: #68717c;
  --border: #d9dde2;
  --accent: #193b63;
  --max-width: 860px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    Charter, "Bitstream Charter", "Iowan Old Style", "Palatino Linotype",
    Palatino, Georgia, serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

a:hover {
  border-bottom-color: var(--accent);
}

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

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
  padding: 64px 0 72px;
}

/* Header
-------------------------------------------------- */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;

  padding-bottom: 28px;
  border-bottom: 2px solid var(--accent);
}

.site-header h1 {
  margin: 0;
  color: var(--accent);
  font-size: clamp(2.5rem, 6vw, 3.6rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.contact {
  flex-shrink: 0;

  margin: 0;

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  font-size: 0.85rem;
  line-height: 1.5;
}

/* Introduction
-------------------------------------------------- */

.intro {
  max-width: 720px;
  margin: 0;
  padding: 30px 0 4px;
}

.intro p {
  margin: 0;

  font-size: 1.08rem;
  line-height: 1.8;
}

/* Sections
-------------------------------------------------- */

section {
  margin-top: 44px;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 14px;

  margin-bottom: 4px;
  padding-bottom: 8px;

  border-bottom: 1px solid var(--border);
}

h2 {
  margin: 0;

  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Entries
-------------------------------------------------- */

.entries {
  display: flex;
  flex-direction: column;
}

.entry {
  padding: 20px 0 21px;
  border-bottom: 1px solid #e7e9ec;
}

.entry:last-child {
  border-bottom: none;
}

.entry h3 {
  margin: 0 0 4px;

  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.45;
}

.entry p {
  max-width: 680px;

  margin: 0;

  color: #59616b;
  font-size: 0.95rem;
  line-height: 1.65;
}

.in-progress {
  margin-left: 6px;

  color: var(--muted);

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  font-size: 0.72rem;
  font-weight: 500;
  font-style: italic;
}

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

footer {
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px solid var(--border);

  color: var(--muted);

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  font-size: 0.75rem;
}

footer p {
  margin: 0;
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 40px), var(--max-width));
    padding: 40px 0 56px;
  }

  .site-header {
    display: block;
    padding-bottom: 24px;
  }

  .site-header h1 {
    font-size: 2.65rem;
  }

  .contact {
    margin-top: 18px;
  }

  .intro {
    padding-top: 25px;
  }

  .intro p {
    font-size: 1rem;
    line-height: 1.75;
  }

  section {
    margin-top: 36px;
  }

  .entry {
    padding: 17px 0 18px;
  }
}