.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.8rem 1.8rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: all 0.25s;
  text-decoration: none;
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #059669);
  color: white;
  box-shadow: 0 4px 24px rgba(16,185,129,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(16,185,129,0.5);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent2);
  box-shadow: 0 0 20px rgba(16,185,129,0.15);
  transform: translateY(-2px);
}

.glow-border {
  position: relative;
}
.glow-border::before {
  content: '';
  position: absolute;
  top: -1px; left: 10%; right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent3), transparent);
  border-radius: 2px;
  opacity: 0.5;
}

.btn.loading {
  pointer-events: none;
  opacity: 0.7;
}
.btn.loading::after {
  content: '';
  width: 16px; height: 16px;
  border: 2px solid transparent;
  border-top-color: white;
  border-radius: 50%;
  animation: spinner 0.6s linear infinite;
  margin-left: 0.5rem;
}