/* -------------------------
   BASE
------------------------- */
body {
  background: #ffffff;
  font-family: Tahoma, Arial, sans-serif;
  color: #1a1a1a;
  padding: 20px;
  max-width: 900px;
  margin: auto;
}

/* -------------------------
   WINDOW STYLE
------------------------- */
.window {
  border: 2px solid #1a1a1a;
  background: #f5f5f7;
  box-shadow: 4px 4px 0 #1a1a1a;
  margin-bottom: 24px;
}

/* TITLE BAR */
.title-bar {
  background: #ede9fe;
  border-bottom: 2px solid #1a1a1a;
  padding: 6px 10px;
  font-weight: bold;
  font-size: 14px;
}

/* CONTENT */
.content {
  padding: 16px;
}

/* -------------------------
   PRODUCTS
------------------------- */
#product-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

#product-list div {
  border: 2px solid #1a1a1a;
  padding: 12px;
  background: #ffffff;
}

/* -------------------------
   CART
------------------------- */
#cart-items div {
  border-bottom: 1px solid #ccc;
  padding: 8px 0;
}

/* -------------------------
   BUTTONS
------------------------- */
button {
  background: #7c3aed;
  color: #ffffff;
  border: 2px solid #1a1a1a;
  padding: 8px 12px;
  font-weight: bold;
  cursor: pointer;
  margin-top: 6px;
}

/* Hover */
button:hover {
  background: #6d28d9;
}

/* Pressed effect (retro feel) */
button:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* -------------------------
   HEADINGS
------------------------- */
h1,
h2,
h3 {
  margin: 0 0 8px 0;
}

/* -------------------------
   RESPONSIVE
------------------------- */
@media (max-width: 600px) {
  #product-list {
    grid-template-columns: 1fr;
  }
}