:root {
  color-scheme: dark;
  --page-bg: #0D0D0D;
  --text-primary: #D4D4D4;
  --text-muted: #989898;
  --surface: #141414;
  --surface-raised: #1C1C1C;
  --surface-hover: #1A1A1A;
  --border: #262626;
  --border-control: #2E2E2E;
  --border-image: #303030;
  --image-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
  --card-shadow: 0px 0px 10px rgba(0, 0, 0, 0.39);
  --hover-shadow: 0px 0px 30px rgba(0, 0, 0, 0.438);
  --button-shadow: 0px 0px 10px rgba(0, 0, 0, 0.281);
  --border-strong: #444444;
}

/* data-theme is set by the toggle in navbar.rs */
:root[data-theme="light"] {
  color-scheme: light;
  --page-bg: #F7F7F7;
  --text-primary: #262626;
  --text-muted: #616161;
  --surface: #FFFFFF;
  --surface-raised: #EFEFEF;
  --surface-hover: #FAFAFA;
  --border: #DEDEDE;
  --border-control: #D5D5D5;
  --border-image: #D0D0D0;
  --image-shadow: 0px 2px 8px rgba(0, 0, 0, 0.06);
  --card-shadow: 0px 2px 10px rgba(0, 0, 0, 0.04);
  --hover-shadow: 0px 6px 24px rgba(0, 0, 0, 0.08);
  --button-shadow: 0px 2px 8px rgba(0, 0, 0, 0.04);
  --border-strong: #B0B0B0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Geist", sans-serif;
  background-color: var(--page-bg);
  color: var(--text-primary);
}

.site-container {
  width: 100%;
  max-width: 688px;
  margin: auto;
  padding: 60px 24px 0;
}

.heading {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}

.heading-name {
  font-weight: 500;
  line-height: 1.5rem;
  color: var(--text-primary);
  text-decoration: none;
}

.heading-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.heading-nav-element {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
}

.heading-nav-element:hover {
  color: var(--text-primary);
}

.heading-nav-element,
.heading-location a,
.about-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background-color: var(--surface);
  color: var(--text-primary);
  cursor: pointer;
}

.theme-toggle:hover {
  background-color: var(--surface-raised);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--text-primary);
  outline-offset: 3px;
}

.heading-location {
  margin: 14px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.heading-location a {
  color: inherit;
  text-decoration: none;
}

.about-headline {
  margin-top: 0;
}

.about-paragraph {
  line-height: 30px;
  padding-bottom: 15px;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  row-gap: 8px;
}

.about-link {
  margin-right: 15px;
  font-size: 0.9rem;
  color: var(--text-primary);
  /* border, not text-decoration: one line under text and icon together */
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--text-muted);
}

.about-link:hover {
  border-bottom-color: var(--text-primary);
}

#projects {
  padding-top: 30px;
}

.project-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  color: var(--text-muted);
}

.projects-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 24px;
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background-color: var(--surface);
  box-shadow: var(--card-shadow);
}

.project-card:hover {
  background-color: var(--surface-hover);
  box-shadow: var(--hover-shadow);
}

.anchor-proj-img {
  position: relative;
  display: block;
}

.project-img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: top;
  margin-bottom: 16px;
  border: 1px solid var(--border-image);
  border-radius: 6px;
  background-color: var(--surface-raised);
  box-shadow: var(--image-shadow);
}

.anchor-proj-img:hover .project-img {
  opacity: 0.5;
}

.project-icon {
  position: absolute;
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.5rem;
  color: var(--text-primary);
  opacity: 0;
  pointer-events: none;
}

.anchor-proj-img:hover .project-icon {
  opacity: 1;
}

.project-title {
  margin: 0 0 5px;
  font-weight: 600;
}

.project-desc {
  margin: 0;
  color: var(--text-muted);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0 12px;
}

.tag {
  padding: 4px 6px;
  font-size: 0.8rem;
  border: 1px solid var(--border-control);
  border-radius: 4px;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: auto;
}

.project-btn,
.more-projects-btn {
  border: 1px solid var(--border-control);
  border-radius: 4px;
  font-weight: 500;
  text-decoration: none;
}

.project-btn {
  padding: 5px 10px;
  font-size: 0.9rem;
}

.more-projects-btn {
  display: block;
  margin-top: 30px;
  padding: 12px;
  text-align: center;
  border-color: var(--border);
  box-shadow: var(--button-shadow);
}


.section-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 40px 0 16px;
  color: var(--text-muted);
}

.job-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background-color: var(--surface);
  box-shadow: var(--card-shadow);
}

.job-card:hover {
  background-color: var(--surface-hover);
  box-shadow: var(--hover-shadow);
}

.job-img {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 6px;
  object-fit: cover;
}

.job-left {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 4px;
}

.job-left p,
.job-time {
  margin: 0;
}

.job-role {
  font-weight: 500;
}

.job-company-name {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--text-muted);
}

.job-time {
  flex-shrink: 0;
  font-size: 0.9rem;
  white-space: nowrap;
  color: var(--text-muted);
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: none;
}

.contact-link:hover {
  color: var(--text-primary);
}

.site-footer {
  margin-top: 48px;
  padding: 32px 0;
  border-top: 1px solid var(--surface-raised);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-text {
  margin: 0;
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
}

.blog-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.blog-card {
  display: block;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background-color: var(--surface);
  box-shadow: var(--card-shadow);
  color: var(--text-primary);
  text-decoration: none;
}

.blog-card:hover {
  background-color: var(--surface-hover);
  box-shadow: var(--hover-shadow);
}

.blog-card p {
  margin: 0;
}

.blog-title {
  font-weight: 600;
}

.blog-card .blog-summary {
  margin-top: 4px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.blog-card .blog-date,
.blog-date {
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.post {
  padding-top: 40px;
}

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
}

.post-back:hover {
  color: var(--text-primary);
}

.post-title {
  margin: 24px 0 0;
  font-size: 1.75rem;
  line-height: 1.25;
}

.prose {
  margin-top: 24px;
  line-height: 1.75;
}

.prose h2,
.prose h3 {
  margin: 2em 0 0.5em;
  line-height: 1.3;
}

.prose a {
  color: var(--text-primary);
  text-underline-offset: 4px;
  text-decoration-color: var(--text-muted);
}

.prose img,
.prose video {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}

.prose code {
  padding: 2px 4px;
  border-radius: 4px;
  background-color: var(--surface-raised);
  font-size: 0.875em;
}

.prose pre {
  overflow-x: auto;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background-color: var(--surface);
  line-height: 1.5;
}

.prose pre code {
  padding: 0;
  background: none;
}

.prose blockquote {
  margin: 1.5em 0;
  padding-left: 16px;
  border-left: 2px solid var(--border-strong);
  color: var(--text-muted);
}

.prose table {
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
}

.prose th,
.prose td {
  padding: 6px 12px;
  border: 1px solid var(--border);
}

.prose .mermaid {
  margin: 1.5em 0;
  overflow-x: auto;
  padding: 16px;
  border-radius: 6px;
  background-color: #FFFFFF;
  text-align: center;
}

.prose .mermaid svg {
  max-width: 100%;
  height: auto;
}

@media (max-width: 640px) {
  .site-container {
    padding: 40px 16px 0;
  }

  .heading-nav {
    flex-wrap: wrap;
    gap: 10px 16px;
  }

  .projects-section {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .project-card {
    padding: 16px;
  }

  .job-card {
    flex-wrap: wrap;
  }
}