* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: sans-serif; /* default font for all text*/
  background: #fff; /*white background*/
  color: #111; /*black text*/
}

 
body.home {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.logo { /* mad lab logo pinned to top left corner*/
  position: absolute;
  top: 20px;
  left: 24px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -1px;
}

.btn-row { /* container that holds home screen buttons*/
  margin: auto;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.big-btn { /* home screen  buttons*/
  display: inline-block;
  padding: 14px 32px;
  background: #000;
  color: #fff;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s;
}

.big-btn:hover { /* hover effect for home screen buttons*/
  background: #333;
}