/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-bounce);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: var(--transition-fast);
}

.btn:hover::before {
  background: rgba(255,255,255,0.08);
}

.btn-primary {
  background: var(--grad-primary);
  color: var(--text-inverse);
  box-shadow: 0 4px 20px rgba(42, 127, 175, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(42, 127, 175, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--accent-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--accent-primary-light);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(42, 127, 175, 0.07);
  color: var(--accent-primary);
  border-color: var(--border-medium);
}

.btn-ghost:hover {
  background: var(--accent-primary-light);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.btn-white {
  background: #ffffff;
  color: var(--accent-primary);
  border-color: #ffffff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.btn-white:hover {
  background: var(--accent-teal-pale);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.btn-ghost-white {
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.2);
}

.btn-ghost-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 40px;
  font-size: var(--fs-base);
}