:root {
  --sky: #eaf4ff;
  --sky-deep: #d8e9f9;
  --purple: #7b2cbf;
  --purple-soft: #9d4edd;
  --purple-tint: #f3eaff;
  --ink: #2c3a4d;
  --ink-soft: #5a6b80;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
    sans-serif;
  background: linear-gradient(180deg, var(--sky) 0%, var(--sky-deep) 100%);
  background-attachment: fixed;
  color: var(--ink);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  text-align: center;
  padding: 3.5rem 1rem 1.5rem;
  border-bottom: 1px solid var(--purple-tint);
  background: rgba(255, 255, 255, 0.25);
}

.site-header h1 {
  font-size: 2.75rem;
  letter-spacing: 0.5px;
  color: var(--purple);
  margin-bottom: 0.25rem;
}

.tagline {
  font-size: 1.05rem;
  color: var(--ink-soft);
  font-style: italic;
}

.nav {
  max-width: 720px;
  margin: 0 auto;
  text-align: left;
}

.nav-link {
  color: var(--purple);
  text-decoration: none;
  font-weight: 600;
}

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

.container {
  width: 90%;
  max-width: 720px;
  margin: 2rem auto;
  flex: 1;
}

.content-card {
  background: var(--white);
  border-radius: 14px;
  padding: 2rem 2.25rem;
  box-shadow: 0 8px 24px rgba(123, 44, 191, 0.12);
  border: 1px solid var(--purple-tint);
}

.content-card h2 {
  color: var(--purple);
  font-size: 1.5rem;
  border-bottom: 2px solid var(--purple-tint);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.post-list {
  list-style: none;
}

.post-list li {
  padding: 0.75rem 0.5rem;
  border-radius: 8px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.post-list li:hover {
  background: var(--purple-tint);
  transform: translateX(4px);
}

.post-list a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

.post-list a:hover {
  color: var(--purple);
  text-decoration: underline;
}

.post {
  font-size: 1.05rem;
}

.post h1,
.post h2,
.post h3 {
  color: var(--purple);
  margin: 1.5rem 0 0.75rem;
  line-height: 1.3;
}

.post h1 {
  font-size: 2rem;
  border-bottom: 2px solid var(--purple-tint);
  padding-bottom: 0.5rem;
}

.post h2 {
  font-size: 1.5rem;
}

.post h3 {
  font-size: 1.2rem;
}

.post p {
  margin-bottom: 1rem;
}

.post a {
  color: var(--purple-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--purple-soft);
}

.post a:hover {
  border-bottom-style: solid;
}

.post ul,
.post ol {
  margin: 0 0 1rem 1.5rem;
}

.post li {
  margin-bottom: 0.35rem;
}

.post code {
  background: var(--purple-tint);
  color: var(--purple);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.92em;
}

.post pre {
  background: var(--ink);
  color: var(--sky);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 1rem;
}

.post pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: 0.9em;
}

.post blockquote {
  border-left: 4px solid var(--purple-soft);
  padding: 0.25rem 0 0.25rem 1rem;
  margin-bottom: 1rem;
  color: var(--ink-soft);
  font-style: italic;
  background: var(--purple-tint);
  border-radius: 0 8px 8px 0;
}

.post img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--purple-tint);
}

.site-footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  border-top: 1px solid var(--purple-tint);
  background: rgba(255, 255, 255, 0.25);
}