/* CoCreate · button component — pill + gradient + shimmer sweep on .btn--primary. */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: var(--s-3) var(--s-5);
  border-radius: var(--r-pill);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-speed) var(--ease-smooth),
              box-shadow var(--transition-speed) var(--ease-smooth),
              background var(--transition-speed) var(--ease-smooth);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn--primary {
  background: var(--grad-cta);
  color: #fff;
  box-shadow: var(--shadow-cta);
}
.btn--primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: left 0.6s var(--ease-smooth);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-cta-h);
}
.btn--primary:hover::before { left: 100%; }

.btn--ghost {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.btn--ghost:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.btn--sm { padding: var(--s-2) var(--s-4); font-size: 0.85rem; }
.btn--lg { padding: var(--s-4) var(--s-6); font-size: 1.05rem; }