/**
 * Shared UI primitives — aligned with compare-vehicles polished controls.
 * Use with semantic HTML: <button class="ds-btn ds-btn--primary">…</button>
 */

.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--ds-radius-md, 12px);
  font-size: var(--fs-base, 1rem);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--ds-duration, 0.3s) var(--ds-ease-standard, ease),
    box-shadow var(--ds-duration, 0.3s) var(--ds-ease-standard, ease),
    background var(--ds-duration, 0.3s) var(--ds-ease-standard, ease);
}

.ds-btn:focus-visible {
  outline: none;
  box-shadow: var(--ds-focus-ring);
}

.ds-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.ds-btn--primary {
  background: var(--color-secondary, #ffd700);
  color: var(--color-primary-dark, #003d7a);
  box-shadow: var(--shadow-lg, 0 10px 15px rgba(0, 0, 0, 0.1));
}

.ds-btn--primary:hover:not(:disabled) {
  background: #ffed4e;
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl, 0 20px 25px rgba(0, 0, 0, 0.1));
}

.ds-btn--ghost {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.ds-btn--ghost:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.ds-banner {
  border-radius: var(--ds-radius-lg, 20px);
  padding: 2.5rem;
  box-shadow: var(--shadow-xl, 0 20px 25px rgba(0, 0, 0, 0.1));
  background: linear-gradient(
    135deg,
    var(--color-primary, #0055a4) 0%,
    var(--color-primary-dark, #003d7a) 100%
  );
  color: #fff;
}