:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3a;
  --accent: #4f8ef7;
  --accent-dim: #3a6fd4;
  --text: #e2e4ed;
  --text-muted: #8b8fa8;
  --text-dim: #5c6080;
  --tag-bg: #1e2235;
  --max-width: 760px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  padding: 2rem 1.5rem 4rem;
}

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

a:hover {
  text-decoration: underline;
  color: #7aaeff;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ── Header ── */
header {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 0.25rem;
}

header .subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.contact-links a {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.contact-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ── Sections ── */
section {
  margin-bottom: 2.5rem;
}

section h2 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

/* ── Summary ── */
.summary p {
  color: var(--text-muted);
  text-align: justify;
}

/* ── Skills ── */
.skills-grid {
  display: grid;
  gap: 0.6rem;
}

.skill-row {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
}

.skill-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dim);
  width: 90px;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag {
  background: var(--tag-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Experience / Education entries ── */
.entry {
  margin-bottom: 1.5rem;
}

.entry:last-child {
  margin-bottom: 0;
}

.entry-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-bottom: 0.15rem;
}

.entry-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.entry-title .org {
  font-weight: 400;
  color: var(--text-muted);
}

.entry-date {
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.entry-location {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 0.4rem;
}

.entry ul {
  list-style: none;
  padding: 0;
  margin-top: 0.4rem;
}

.entry ul li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.2rem;
}

.entry ul li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--text-dim);
}

/* ── Projects ── */
.project {
  margin-bottom: 1.4rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--border);
}

.project:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-bottom: 0.4rem;
}

.project-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.project-links {
  font-size: 0.8rem;
  display: flex;
  gap: 0.75rem;
}

.project .tags {
  margin-bottom: 0.5rem;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.project-desc li {
  list-style: none;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.2rem;
}

.project-desc li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--text-dim);
}

.sub-projects {
  margin-top: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.sub-project {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  gap: 1rem;
}

.sub-project span::before {
  content: '–  ';
  color: var(--text-dim);
}

/* ── Awards ── */
.award {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.award:last-child {
  border-bottom: none;
}

.award-title {
  font-size: 0.875rem;
  font-weight: 600;
}

.award-meta {
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}

/* ── Publications ── */
.publication {
  margin-bottom: 1.2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border);
}

.publication:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.publication-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.publication-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.publication-venue {
  color: var(--text-dim);
}

.badge {
  background: #2a1f3d;
  border: 1px solid #4a3a6d;
  color: #a78bda;
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  font-size: 0.75rem;
}

/* ── Responsive ── */
@media (max-width: 520px) {
  header h1 { font-size: 1.7rem; }
  .skill-row { flex-direction: column; gap: 0.3rem; }
  .skill-label { width: auto; }
  .sub-project { flex-direction: column; gap: 0.1rem; }
}