:root {
  --text: #1a1a1a;
  --muted: #5c5c5c;
  --link: #0b57d0;
  --border: #e8e8e8;
  --bg: #fafafa;
  --max: 44rem;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.site-title {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}

.site-title:hover {
  text-decoration: underline;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.site-nav a {
  color: var(--link);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:hover {
  text-decoration: underline;
}

.site-main {
  padding: 2rem 0 3rem;
  min-height: 60vh;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
  font-size: 0.9rem;
  color: var(--muted);
  background: #fff;
}

.page-header h1 {
  margin: 0 0 1rem;
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.25;
}

.page-content h1,
.page-content h2 {
  margin-top: 1.75rem;
  margin-bottom: 0.85rem;
  font-size: 1.25rem;
  font-weight: 650;
}

.page-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.55rem;
  font-size: 1.1rem;
  font-weight: 650;
  line-height: 1.3;
  color: var(--text);
}

.page-content h1:first-child {
  margin-top: 0;
}

.page-content p {
  margin: 0.75rem 0;
}

.page-content ul,
.page-content ol {
  margin: 0.75rem 0;
  padding-left: 1.35rem;
}

.page-content li {
  margin: 0.35rem 0;
}

.page-content a {
  color: var(--link);
}

.page-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.75rem 0;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.post-list li {
  margin: 0.65rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  align-items: baseline;
}

.post-list time {
  color: var(--muted);
  font-size: 0.9rem;
  min-width: 7.5rem;
}

.post-list a {
  color: var(--link);
  text-decoration: none;
}

.post-list a:hover {
  text-decoration: underline;
}

/* Home: summary + highlights */
.home-summary {
  margin: 1.5rem 0 1.75rem;
  padding: 1rem 0 1rem 1.1rem;
  border-left: 4px solid var(--link);
  color: var(--muted);
  font-size: 1.06rem;
}

.home-summary strong {
  color: var(--text);
}

.home-highlights {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.35rem;
  margin: 1.5rem 0;
}

.page-content .home-highlights h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 650;
}

.home-highlights ul {
  margin: 0;
}

.home-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  margin: 1rem 0 0;
  font-size: 0.95rem;
}

.home-cta a {
  color: var(--link);
  text-decoration: none;
  font-weight: 500;
}

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

/* Home: photo + intro */
.home-hero {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.home-hero-main {
  flex: 1 1 16rem;
  min-width: 0;
}

.home-photo {
  flex: 0 0 auto;
  width: 200px;
  max-width: min(42vw, 220px);
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  object-fit: cover;
  aspect-ratio: 1;
}

@media (max-width: 520px) {
  .home-hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .home-hero-main {
    width: 100%;
  }

  .home-cta {
    justify-content: center;
  }
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 1rem 0 1.5rem;
}

.page-content th,
.page-content td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.65rem;
  text-align: left;
  vertical-align: top;
}

.page-content th {
  background: #fff;
  font-weight: 600;
  width: 28%;
}

/* Embedded video (e.g. YouTube on Projects) */
.video-embed {
  position: relative;
  width: 100%;
  max-width: 100%;
  margin: 0.65rem 0 1rem;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #111;
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}