@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;600&family=IBM+Plex+Mono:wght@400;600&display=swap");

:root {
  --bg: #335c67;
  --ink: #fff3b0;
  --muted: #e09f3e;
  --accent: #e09f3e;
  --line: #9e2a2b;
  --paper: #2a4a54;
  --shadow: rgba(9, 18, 20, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top left, #3b6b78 0%, #335c67 55%, #23424a 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.frame {
  position: fixed;
  inset: 16px;
  border: 1px solid var(--line);
  pointer-events: none;
}

.site-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 48px 72px 24px;
  gap: 32px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.brand a {
  font-family: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 18px;
  color: var(--ink);
  text-decoration: none;
}

.tagline {
  font-size: 14px;
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 4px;
}

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

.content {
  flex: 1;
  padding: 0 72px 72px;
  max-width: 960px;
}

.content h1 {
  font-size: 40px;
  margin-bottom: 12px;
}

.content h2 {
  font-size: 22px;
  margin-top: 28px;
}

.content a {
  color: #fff7d6;
  text-decoration: underline;
  text-decoration-color: rgba(255, 243, 176, 0.7);
  text-underline-offset: 3px;
}

.content a:hover {
  color: var(--ink);
  text-decoration-color: var(--accent);
}

.content p {
  line-height: 1.7;
  color: var(--ink);
}

.content img {
  max-width: 100%;
  height: auto;
  display: block;
}

.content pre {
  background: #1a3036;
  color: #fff3b0;
  padding: 16px 18px;
  border-radius: 8px;
  overflow-x: auto;
  box-shadow: inset 0 0 0 1px rgba(255, 243, 176, 0.12);
}

.content code {
  font-family: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
  font-size: 0.92em;
}

.content p code,
.content li code {
  background: #e09f3e;
  color: #540b0e;
  padding: 2px 6px;
  border-radius: 6px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 14px 36px var(--shadow);
  padding: 28px;
  margin: 20px 0;
}

.archive-banner {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 14px;
  border: 1px dashed var(--line);
  background: #2f5560;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.archive-banner strong {
  color: var(--accent);
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.post-list li {
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
  background: #2b4f5a;
}

.post-list a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}

.meta {
  font-size: 13px;
  color: var(--muted);
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-decoration: none;
}

.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-footer {
  padding: 24px 72px 48px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 28px 20px;
  }

  .content {
    padding: 0 28px 48px;
  }

  .site-footer {
    padding: 20px 28px 40px;
  }

  .frame {
    inset: 10px;
  }
}