:root {
  color-scheme: dark;
  --bg: #0d1117;
  --bg-soft: #010409;
  --text: #c9d1d9;
  --text-dim: #8b949e;
  --accent: #58a6ff;
  --accent-strong: #79c0ff;
  --border: #30363d;
  --page-title-size: clamp(1.8rem, 4vw, 2.6rem);
  --content-size: 1.02rem;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.layout-container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.layout-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 92%, var(--bg-soft));
}

.layout-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.layout-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
}

.layout-brand-photo {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid var(--border);
  background: #21262d;
}

.layout-brand-name { font-size: 0.95rem; font-weight: 600; }

.layout-nav { display: flex; gap: 0.4rem; }
.layout-nav a {
  color: var(--accent);
  text-decoration: none;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  border: 1px solid transparent;
}
.layout-nav a:hover {
  color: var(--accent-strong);
  border-color: var(--border);
  background: #21262d;
}

.layout-main {
  flex: 1 0 auto;
  margin: 1.2rem auto 1rem;
}

.layout-description {
  margin: 0 0 0.8rem;
  color: var(--text-dim);
  font-size: 0.86rem;
}

.home-page, .posts-page, .post-page { padding: 0.6rem; }

.page-title {
  margin: 0;
  font-size: var(--page-title-size);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 700;
}

/* Home */
.hero-section {
  padding: 2.6rem 0 2rem;
  display: grid;
  gap: 2rem;
}

.hero-lead {
  margin: 1rem 0 0;
  font-size: clamp(1.08rem, 1.2vw, 1.2rem);
  line-height: 1.7;
  color: var(--text);
}

.hero-cards {
  margin-top: 1.6rem;
  display: grid;
  gap: 2rem;
}

.hero-cards-main {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.hero-cards-quotes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.hero-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, #111a2a, #0f1624);
  padding: 1.2rem;
}

.hero-card .card-title {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.35;
  color: #8fd3ff;
}

.hero-card .card-text {
  margin: 0.65rem 0 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: #d6deea;
}

.hero-card-quote {
  background: linear-gradient(180deg, #15111f, #120f1a);
  border-color: #3d3550;
}

.hero-card-quote p {
  margin: 0;
  color: #a1cea3;
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: clamp(1.06rem, 1.3vw, 1.18rem);
  line-height: 1.62;
}

.hero-card-quote cite {
  display: block;
  margin-top: 0.75rem;
  font-style: normal;
  color: #d6c9f1;
  font-size: 0.9rem;
}

.hero-section .hero-cta {
  padding: 1.8rem 0 0;
  font-size: var(--content-size);
  color: var(--text-dim);
}

.hero-cta a {
  text-decoration: none;
}

.hero-cta a:hover {
  text-decoration: underline;
}

/* Posts list page */
.posts-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
}
.posts-head h1 { margin: 0; }
.posts-head small { color: var(--text-dim); }

.posts-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}
.posts-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.78rem 0;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.15s ease;
}

.posts-list li:hover {
  background: #0f1522;
}

.posts-list-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--accent);
  text-decoration: none;
  font-size: var(--content-size);
  font-weight: 500;
}
.posts-list-link:hover { color: var(--accent-strong); }

.posts-list-arrow {
  color: var(--accent-strong);
  font-size: 0.92em;
  opacity: 0.9;
  transform: translateX(0);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.posts-list-link:hover .posts-list-arrow {
  transform: translateX(2px);
  opacity: 1;
}

.posts-list small {
  color: #a2aec2;
  white-space: nowrap;
  font-size: 0.83rem;
}

/* Post page */
.post-header {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.post-header .page-title { margin-top: 0.2rem; }

.post-subtitle {
  margin: 0.8rem 0 0;
  color: var(--text-dim);
}

.post-meta {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.88rem;
}

.post-content {
  margin-top: 1.2rem;
  font-size: var(--content-size);
}
.post-content p,
.post-content ul,
.post-content ol,
.post-content pre,
.post-content blockquote {
  margin: 0 0 1rem;
}
.post-content h2,
.post-content h3 {
  margin: 1.8rem 0 0.7rem;
}
.post-content ul,
.post-content ol {
  padding-left: 1.35rem;
}
.post-content code {
  background: #21262d;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.34rem;
  font-size: 0.92em;
}
.post-content pre {
  overflow-x: auto;
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.8rem;
}
.post-content pre code {
  padding: 0;
  border: 0;
  background: transparent;
}

.post-end-nav {
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* Footer */
.layout-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}
.layout-footer-inner {
  padding: 1.2rem 0 1.5rem;
  text-align: center;
}
.layout-footer p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.layout-social {
  margin-top: 0.55rem;
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
}
.layout-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
}
.layout-social a:hover {
  color: var(--accent-strong);
  border-color: var(--accent-strong);
  background: #21262d;
}
.layout-social svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

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

@media (max-width: 720px) {
  .home-page, .posts-page, .post-page { padding: 1rem; }
  .layout-header-inner { padding: 0.8rem 0; }
  .layout-brand-name { display: none; }

  .hero-cards { gap: 1rem; }
  .hero-cards-main,
  .hero-cards-quotes { grid-template-columns: 1fr; gap: 1rem; }
  .hero-lead { white-space: normal; }

  .posts-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }
}