:root {
  --background: #f7f3ee;
  --text: #45403b;
  --muted: #77716c;
  --accent: #a91e37;
  --line: #d9d3cc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

.container {
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
}

.site-header { padding: 32px 0; }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  flex: 0 0 auto;
  color: var(--text);
  font-size: 18px;
  font-weight: 400;
  text-decoration: none;
}

.brand-mark {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.5vw, 36px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] { color: var(--accent); }

.insight { padding: 86px 0 130px; }

.back-link {
  display: inline-block;
  margin-bottom: 38px;
  color: var(--accent);
  font-size: 14px;
  text-decoration: none;
}

.back-link:hover { text-decoration: underline; }

.insight h1 {
  max-width: 980px;
  margin: 0 0 28px;
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.article-author {
  margin-bottom: 64px;
}

.article-author strong,
.article-author em {
  display: block;
}

.article-author strong {
  margin-bottom: 6px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
}

.article-author em {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.article-body {
  max-width: 850px;
}

.article-body p,
.article-body li {
  color: var(--muted);
  font-size: clamp(18px, 1.7vw, 20px);
  line-height: 1.75;
}

.article-body p { margin: 0 0 30px; }

.article-body h2 {
  margin: 58px 0 24px;
  color: var(--text);
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(29px, 3.5vw, 42px);
  font-weight: 400;
  line-height: 1.18;
}

.article-body ul {
  margin: 0 0 34px;
  padding: 0;
  list-style: none;
}

.article-body li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 20px;
}

.article-body li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.article-body strong {
  color: var(--text);
  font-weight: 600;
}

.highlight {
  margin: 44px 0;
  padding: 30px 34px;
  border-left: 3px solid var(--accent);
  background: rgba(238, 232, 225, 0.72);
}

.highlight p {
  margin: 0;
  color: var(--text);
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.3;
}

.minimal-footer {
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
  padding: 20px 0 24px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.minimal-footer p { margin: 0; }

.minimal-footer a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:focus-visible {
  outline: 3px solid rgba(169, 30, 55, 0.25);
  outline-offset: 5px;
}

@media (max-width: 700px) {
  .container,
  .minimal-footer { width: min(100% - 40px, 1180px); }

  .site-header { padding: 24px 0; }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
  }

  .nav-list {
    width: 100%;
    flex-wrap: wrap;
    gap: 12px 20px;
  }

  .nav-list a { font-size: 14px; }
  .insight { padding: 70px 0 92px; }
  .insight h1 { margin-bottom: 24px; }
  .article-author { margin-bottom: 48px; }

  .article-body p,
  .article-body li {
    font-size: 18px;
    line-height: 1.7;
  }

  .highlight { padding: 26px 24px; }
}

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