/* helpers & utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.grid        { display: grid; }
.text-center { text-align: center; }