:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --accent: #38bdf8;
  --good: #4ade80;
  --bad: #f87171;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.topnav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
}

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

.topnav .links a {
  color: var(--text-dim);
  text-decoration: none;
  margin-left: 1.5rem;
}

.topnav .links a:hover { color: var(--accent); }

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.bio {
  display: flex;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  object-fit: cover;
  flex-shrink: 0;
}

.bio-text h1 { margin: 0 0 0.25rem; }
.tagline { color: var(--accent); margin: 0 0 0.75rem; font-weight: 600; }
.bio-text a { color: var(--accent); }

.tab-buttons {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.tab-button {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-button:hover { color: var(--text); }

.tab-button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.card h3 { margin: 0 0 0.25rem; }
.card .meta { color: var(--text-dim); font-size: 0.9rem; margin: 0 0 0.5rem; }
.card p { margin: 0 0 0.5rem; }

.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.tag {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  font-size: 0.8rem;
}

.skills-category { margin-bottom: 1.5rem; }
.skills-category h3 { color: var(--accent); }

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.5rem;
}

.skill-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  display: flex;
  justify-content: space-between;
}

.skill-item .proficiency { color: var(--text-dim); font-size: 0.85rem; }

.loading, .empty { color: var(--text-dim); }

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

th { color: var(--text-dim); font-weight: 600; }

.status-ready { color: var(--good); font-weight: 600; }
.status-notready { color: var(--bad); font-weight: 600; }

#refresh-btn {
  background: var(--accent);
  border: none;
  color: #0f172a;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  cursor: pointer;
  margin: 0.5rem 0 1.5rem;
}

.error {
  color: var(--bad);
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid var(--bad);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}