:root {
  --page-bg: #f4efe8;
  --paper-bg: #fffdf9;
  --text: #24201c;
  --muted: #6a5f52;
  --line: #ddd3c5;
  --accent: #0f6d8a;
  --accent-soft: #d9eef4;
  --quote-bg: #f4f8fa;
  --code-bg: #1f2328;
  --code-text: #f4f6f8;
}

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

html {
  font-size: 17px;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, #f8f2e8 0%, transparent 35%),
    radial-gradient(circle at 90% 0%, #e4eef2 0%, transparent 30%),
    var(--page-bg);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
}

.markdown-body {
  width: min(90%, calc(100% - 2rem));
  margin: 2.5rem auto 3rem;
  padding: 2.25rem clamp(1.1rem, 2vw, 2.5rem);
  background: var(--paper-bg);
  border: 1px solid #ece3d6;
  border-radius: 18px;
  box-shadow:
    0 12px 30px rgba(64, 49, 33, 0.08),
    0 2px 6px rgba(64, 49, 33, 0.06);
}

.markdown-body > *:first-child {
  margin-top: 0;
}

.markdown-body > *:last-child {
  margin-bottom: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  font-family: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: #1f2b33;
  margin-top: 2.2rem;
  margin-bottom: 0.85rem;
}

.markdown-body h1 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-top: 0.4rem;
  padding-bottom: 0.45rem;
  border-bottom: 2px solid var(--line);
}

.markdown-body h2 {
  font-size: clamp(1.55rem, 2.3vw, 2rem);
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--line);
}

.markdown-body h3 {
  font-size: clamp(1.24rem, 1.8vw, 1.5rem);
}

.markdown-body h4 {
  font-size: 1.13rem;
}

.markdown-body h5,
.markdown-body h6 {
  font-size: 1rem;
  color: #384a56;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body dl,
.markdown-body table,
.markdown-body blockquote {
  margin: 1rem 0;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.55rem;
}

.markdown-body li + li {
  margin-top: 0.35rem;
}

.markdown-body a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.13em;
}

.markdown-body a:hover {
  color: #0a546a;
  background: var(--accent-soft);
}

.markdown-body hr {
  border: 0;
  height: 1px;
  margin: 2rem 0;
  background: linear-gradient(to right, transparent, var(--line), transparent);
}

.markdown-body blockquote {
  padding: 0.8rem 1rem 0.8rem 1.2rem;
  border-left: 4px solid #8db9c8;
  background: var(--quote-bg);
  color: #30414e;
  border-radius: 0 10px 10px 0;
}

.markdown-body code {
  font-family: "JetBrains Mono", "Consolas", "Courier New", monospace;
  font-size: 0.9em;
  background: #efe7d9;
  border-radius: 6px;
  padding: 0.1em 0.35em;
}

.markdown-body pre {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  margin: 1.25rem 0;
}

.markdown-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: 0.9rem;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid var(--line);
  padding: 0.55rem 0.7rem;
  text-align: left;
}

.markdown-body th {
  font-family: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
  background: #f3eee5;
}

.markdown-body img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1rem auto;
  border-radius: 10px;
  box-shadow: 0 5px 18px rgba(20, 22, 26, 0.14);
}

.markdown-body strong {
  color: #1e1a14;
}

.markdown-body em {
  color: #5b4f40;
}

.markdown-body :target {
  scroll-margin-top: 1rem;
  animation: mark-target 1.2s ease;
}

@keyframes mark-target {
  0% {
    background: #fff3c9;
  }
  100% {
    background: transparent;
  }
}

@media (max-width: 760px) {
  html {
    font-size: 16px;
  }

  .markdown-body {
    width: calc(100% - 1rem);
    margin: 0.75rem auto 1.2rem;
    padding: 1rem;
    border-radius: 14px;
  }

  .markdown-body pre {
    border-radius: 10px;
    padding: 0.85rem;
  }
}