:root {
  --bg: #0a0a0d;
  --surface: #131318;
  --surface-2: #17171e;
  --border: #2a2a33;
  --ink: #f2f2f5;
  --muted: #9a9aa6;
  --accent: #7c5cff;
  --accent-soft: rgba(124, 92, 255, 0.15);
  --accent-2: #22d3ee;
  --accent-2-soft: rgba(34, 211, 238, 0.13);
  --max-width: 760px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(680px 360px at 12% -10%, var(--accent-soft), transparent 60%),
    radial-gradient(520px 300px at 100% 0%, var(--accent-2-soft), transparent 55%);
  background-repeat: no-repeat;
}

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 64px 24px 80px; }

.tabnav {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.tabnav a {
  padding: 0 0 12px;
  color: var(--muted);
  text-decoration: none;
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.tabnav a:hover { color: var(--ink); }
.tabnav a.active { color: var(--accent); border-color: var(--accent); }

.page-header { margin-bottom: 8px; }
.page-header h1 { font-size: 2rem; }

.section-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-2);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 8px;
}
.section-link:hover { color: var(--ink); }

.detail-block { color: #d5d5da; font-size: 0.95rem; margin: 10px 0 0; }
.detail-block p { margin: 0 0 10px; }
.detail-block strong { color: var(--ink); }

.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 0; padding: 0; list-style: none; }
.tag-row li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 11px;
  font-size: 0.78rem;
  color: var(--muted);
}

h1, h2, h3 { font-family: "Space Grotesk", "Inter", sans-serif; line-height: 1.2; letter-spacing: -0.01em; }

.hero { margin-bottom: 8px; }

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-2);
}

h1 {
  font-size: 2.6rem;
  margin: 0 0 8px;
  background: linear-gradient(100deg, var(--ink) 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-top: 48px;
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.tagline { color: var(--muted); margin: 0; font-size: 1.12rem; max-width: 46ch; }

.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn-filled {
  background: var(--accent);
  border-color: var(--accent);
  color: #0a0a0d;
}
.btn-filled:hover { background: #8f73ff; border-color: #8f73ff; }
.btn-accent-2 { border-color: var(--accent-2); color: var(--accent-2); }
.btn-accent-2:hover { background: var(--accent-2-soft); border-color: var(--accent-2); }

.contact-links {
  margin: 26px 0 0; padding: 0; list-style: none;
  display: flex; flex-wrap: wrap; gap: 8px 22px;
}
.contact-links a {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--muted); text-decoration: none; font-size: 0.92rem;
  transition: color 0.15s ease;
}
.contact-links a:hover { color: var(--accent-2); }

.icon { width: 15px; height: 15px; flex: none; }
.btn .icon { width: 14px; height: 14px; }

.entry {
  margin-bottom: 26px;
  padding-left: 20px;
  border-left: 2px solid var(--border);
  position: relative;
}
.entry::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}
.entry-header { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 4px 12px; }
.entry-title { font-weight: 600; font-size: 1.05rem; }
.entry-title a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--border); }
.entry-title a:hover { color: var(--accent); border-color: var(--accent); }
.entry-meta {
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}
.entry-sub { color: var(--muted); font-style: italic; margin: 4px 0 8px; font-size: 0.95rem; }
.entry ul { margin: 8px 0 0; padding-left: 20px; color: #d5d5da; }
.entry li { margin-bottom: 6px; }

.pub-list { display: flex; flex-direction: column; gap: 20px; }
.pub {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 2px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
}
.pub::before { display: none; }
.pub-header { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 6px 14px; }
.pub-title { font-weight: 600; font-size: 1rem; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--border); }
.pub-title:hover { color: var(--accent-2); border-color: var(--accent-2); }
.pub-venue {
  color: var(--accent-2);
  background: var(--accent-2-soft);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.pub p { color: var(--muted); margin: 8px 0 0; font-size: 0.93rem; }

.achievements { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.achievements li {
  position: relative;
  padding-left: 22px;
  color: #d5d5da;
  font-size: 0.95rem;
}
.achievements li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  transform: rotate(45deg);
  background: var(--accent);
}
.achievements strong { color: var(--ink); }

.skills-category { margin-bottom: 22px; }
.skills-category:last-child { margin-bottom: 0; }
.skills-category h3 {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
  margin: 0 0 10px;
  font-weight: 600;
}

.skills-grid { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; margin: 0; }
.skills-grid li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.88rem;
  color: #d5d5da;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.skills-grid li:hover { border-color: var(--accent); color: var(--ink); }

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.video-card {
  display: block;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.video-card:hover { border-color: var(--accent-2); transform: translateY(-2px); }
.video-thumb-wrap { aspect-ratio: 16 / 9; overflow: hidden; background: var(--surface-2); }
.video-thumb-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-title {
  margin: 0;
  padding: 10px 12px;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-more { margin-top: 16px; }
.video-more a {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--accent-2); text-decoration: none; font-size: 0.9rem; font-weight: 600;
}
.video-more a:hover { color: var(--ink); }

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

footer {
  margin-top: 60px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding: 44px 18px 60px; }
  h1 { font-size: 2rem; }
  .pub-header { flex-direction: column; align-items: flex-start; }
}