@import url("https://fonts.googleapis.com/css2?family=Source+Sans+Pro:ital,wght@0,300;0,400;0,600;1,400&display=swap");

:root {
  --primary-color: #fca27f;
  --primary-second: #ff7640;
  --third-color: #f75f23;
  --gray-color: #3a3a3a;
}

body {
  font-family: "Source Sans Pro", sans-serif;
  margin: auto;
  text-align: center;
}

button {
  font-family: inherit;
  cursor: pointer;
  margin: 0.5rem auto 1rem auto;
  padding: 0.5rem 2rem;
  font-size: 15px;
  border: 1px solid black;
  background-color: var(--primary-second);
  transition: 0.3s;
}

button:hover {
  background-color: var(--third-color);
}

#header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--primary-second);
  padding: 0rem 1rem;
}

#nav-links ul {
  display: flex;
}

#nav-links li {
  list-style: none;
}

#nav-links li a {
  text-decoration: none;
  padding: 0 0.5rem;
  color: initial;
  cursor: pointer;
}

.active {
  font-weight: bold;
}

#main {
  padding: 2rem 0 3rem 0;
  margin: 1rem;
}

#main h1 {
  margin-bottom: 2.5rem;
}

input {
  display: block;
  margin: 0.5rem auto 1rem auto;
  padding: 0.5rem;
}

#is-triangle-btn {
  margin: 0.5rem auto;
  padding: 0.5rem 2rem;
  font-size: 15px;
  border: 1px solid black;
  background-color: var(--primary-second);
  transition: 0.3s;
}

#is-triangle-btn:hover {
  background-color: var(--third-color);
}

#output {
  padding: 1rem;
  margin: 1rem auto;
  border: 1px solid black;
  max-width: 350px;
  border-radius: 1rem;
  background-color: var(--primary-color);
}

#footer {
  background-color: var(--gray-color);
  padding: 0.5rem 0rem 0.2rem 0rem;
  margin-top: 2rem;
  width: 100%;
  height: 100px;
  padding-inline-start: 0px;
}

#footer #list {
  list-style-type: none;
  padding-inline-start: 0;
}

#footer #list .social {
  display: inline-block;
  margin: 0.5rem;
}

.ionicons {
  color: var(--primary-color);
  font-size: 32px;
}

@media (max-width: 500px) {
  #header {
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  #nav-links ul {
    display: flex;
    flex-direction: column;
  }
}