:root {
  color-scheme: dark;
  --accent: #a78bfa;
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, sans-serif;
  background: #111;
  color: #eee;
  margin: 0;
  line-height: 1.6;
}

header {
  text-align: center;
  padding: 3rem 1.5rem 0;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 2.5rem;
}

header .title {
  margin: 0;
  font-size: 1.15rem;
  color: #ccc;
}

header .subtitle {
  margin: 0.25rem 0 1.25rem;
  color: #888;
}

ul.links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  padding: 0;
  margin: 0 0 1rem;
  flex-wrap: wrap;
}

nav.section-nav {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

section {
  margin-bottom: 3rem;
  scroll-margin-top: 1.5rem;
}

section h2 {
  font-size: 1.5rem;
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.5rem;
  margin-bottom: 0.85rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
}

.skills-grid h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: #ccc;
}

.skills-grid p {
  margin: 0;
  color: #aaa;
}

.entry {
  margin-bottom: 1.75rem;
}

.entry-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.entry-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.dates {
  color: #888;
  font-size: 0.9rem;
  white-space: nowrap;
}

.org {
  margin: 0.15rem 0 0.5rem;
  color: #999;
  font-style: italic;
}

.entry ul {
  margin: 0.5rem 0 0;
  padding-left: 1.25rem;
  color: #ccc;
}

.entry p {
  color: #ccc;
  margin: 0.5rem 0;
}

.project-link {
  display: inline-block;
  margin-top: 0.25rem;
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: #666;
  font-size: 0.85rem;
}

ul.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0.5rem 0;
}

ul.tags li {
  background: #1e1e1e;
  border: 1px solid #333;
  color: #ccc;
  font-size: 0.8rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  transition: border-color 0.15s ease;
}

ul.tags li:hover {
  border-color: var(--accent);
}

#projects .entry {
  background: #181818;
  border: 1px solid #2a2a2a;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

#projects .entry:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
}

html {
  scroll-behavior: smooth;
}

nav.section-nav a {
  color: #999;
  transition: color 0.15s ease;
}

nav.section-nav a.active {
  color: var(--accent);
  font-weight: 600;
}

nav.section-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #111;
  padding: 0.75rem 1.5rem;
  margin: 1rem 0 0;
  border-bottom: 1px solid #2a2a2a;
}

section {
  scroll-margin-top: 4.5rem;
}

@media (max-width: 600px) {
  nav.section-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    justify-items: center;
    gap: 0.75rem 1rem;
  }
}

main > h1 {
  font-size: 2rem;
  margin: 0.5rem 0 0.25rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.project-images {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

.project-images img {
  width: 100%;
  display: block;
  border-radius: 10px;
  border: 1px solid #2a2a2a;
}

a.entry {
  display: block;
  text-decoration: none;
  color: inherit;
}

ul.plain-list {
  list-style: none;
  padding-left: 0;
}

#projects .entry h3 {
  color: var(--accent);
}

main section {
  margin-left: -1.5rem;
  margin-right: -1.5rem;
  margin-bottom: 0;
  padding: 1.25rem 1.5rem 1.5rem;
}

main section:first-of-type {
  border-radius: 12px 12px 0 0;
}

main section:last-of-type {
  border-radius: 0 0 12px 12px;
  margin-bottom: 2.5rem;
}

main section:nth-of-type(1) { background: #170f0f; }
main section:nth-of-type(2) { background: #17130d; }
main section:nth-of-type(3) { background: #16160d; }
main section:nth-of-type(4) { background: #0f170f; }
main section:nth-of-type(5) { background: #0d1217; }
main section:nth-of-type(6) { background: #150f17; }