.back-btn{background-color:var(--primary-color);color:var(--tertiary-contrast);cursor:pointer;border:none;border-radius:6px;align-items:center;gap:.5rem;margin:.5rem 0;padding:.4rem .8rem;font-size:.9rem;font-weight:500;transition:background-color .2s;display:inline-flex}.back-btn:hover{background-color:var(--tertiary-shade)}.back-btn:disabled{background-color:var(--medium-color);cursor:not-allowed}.back-btn.small{padding:.5rem 1rem;font-size:.8rem}.back-btn.large{padding:1rem 2rem;font-size:1rem}