:root {
  --hub-bg: #09090b;
  --hub-card: #0c0c0f;
  --hub-border: rgba(255, 255, 255, 0.08);
  --hub-muted: #a1a1aa;
  --hub-accent: #34d399;
  --hub-blue: #60a5fa;
}

* { box-sizing: border-box; }

body.portfolio-hub {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background: var(--hub-bg);
  color: #fafafa;
  line-height: 1.5;
}

.hub-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--hub-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.hub-header a.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.hub-header img {
  height: 36px;
}

.hub-header nav a {
  color: var(--hub-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-left: 1.25rem;
}

.hub-header nav a:hover { color: #fff; }

.hub-hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
  text-align: center;
}

.hub-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.hub-hero h1 span {
  background: linear-gradient(90deg, var(--hub-blue), var(--hub-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hub-hero p {
  color: var(--hub-muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
}

.hub-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.hub-card {
  background: var(--hub-card);
  border: 1px solid var(--hub-border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}

.hub-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.15);
}

.hub-card__preview {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hub-card__body { padding: 1.25rem; }

.hub-card__body h2 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.hub-card__body p {
  margin: 0 0 1rem;
  color: var(--hub-muted);
  font-size: 0.9rem;
}

.hub-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.hub-tags span {
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--hub-muted);
}

.hub-card__actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.hub-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.hub-btn--primary {
  background: linear-gradient(90deg, var(--hub-blue), var(--hub-accent));
  color: #0a0a0a;
}

.hub-btn--ghost {
  background: transparent;
  color: var(--hub-muted);
  border: 1px solid var(--hub-border);
}

.hub-btn--ghost:hover { color: #fff; border-color: rgba(255,255,255,0.2); }

.hub-footer {
  text-align: center;
  padding: 2rem;
  color: var(--hub-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--hub-border);
}

.hub-footer a { color: var(--hub-accent); }