:root{
  --color-primary: #0D2C58;
  --color-secondary: #031938;
  --color-alternate: #F89F3C;
  --color-alternate-2: #809E3E;
  --color-alternate-3: #4F6585;
  --color-alternate-4: #537F28;
  --danger: #d64a42;
  --dark-danger: #a33933;
  --common-radius: 10px;
}

* {
  box-sizing: border-box;
}

body, html {
  background: #eee;
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: sans-serif;
}

hr {
  border: 1px solid #ddd;
}

header {
  width: 100%;
  background: var(--color-primary);
  padding: 1rem;
  display: flex;
  gap: 1rem;
  color: white;
  grid-area: header;
  align-items: center;
  h1{
    padding: 0;
    margin: 0;
  }
}

.main-layout{
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas: "header header" "aside main";
  grid-template-rows: auto 1fr;
  height: 100%;
}

aside{
  grid-area: aside;
  width: 250px;
  background: #ddd;
  border-right: 2px solid var(--color-secondary);

  ul {
    margin: 0;
    padding: 0;
  }

  a {
    display: block;
    padding: 0.75rem 1.2rem;

    text-decoration: none;
    font-weight: bold;
    font-size: 1rem;
    color: black;
    border-bottom: 1px solid #aaa;

    &:hover, &.active{
      background: var(--color-alternate);
    }
  }

  h2{
    margin: 0;
    padding: 0.75rem 1rem;
    font-size: 1.2rem;
    background: var(--color-primary);
    border-left: 5px solid var(--color-alternate);
    color: white;
  }
}

main {
  grid-area: main;
  height: 100%;
  overflow: auto;
  padding: 0 0.5rem;
}

table{
  margin: 1rem 0;
  border-collapse: collapse;
  width: 100%;
  td,th{
    padding: 0.5rem 1rem;
    text-align: left;
  }

  th {
    background: var(--color-primary);
    color: white;
  }
}

button, .btn, [type=submit]{
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: .85rem;
  font-weight: bold;
  background: var(--color-primary);
  border-radius: var(--common-radius);
  color: white;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid var(--color-primary);

  &.danger {
    background: var(--dark-danger);
    border-color: var(--dark-danger);
    color: white;
  }

  &.warning{
    background: var(--color-alternate);
    border-color: var(--color-alternate);
    color: black;
  }

  &:hover{
    background: #eee;
    color: black;
  }

  &:disabled, &[disabled]{
    background: #ccc;
    border-color: #ccc;
    color: #666;
    cursor: not-allowed;
  }
}

.notice{
  background: var(--color-alternate-3);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  margin-block: 0.5rem;

  &.alert{
    background: var(--color-alternate);
    color: black;
  }
}