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

/* COLORS */
:root {
  --color-primary: #212529;
  --color-accent: #1d5980;
  --color-public-holiday: #2196f3;
  --color-gifted-lab-holiday: #ff7b07;
  --color-school-designated-closure: #ffc107;
  --color-border: #e9ecef;
  --color-muted: #868e96;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  font-weight: normal;
  font-size: 16px;
  color: var(--color-primary);
}

h1,
h2 {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

h1 {
  font-size: 1.75rem;
  font-weight: 500;
  text-align: center;
  color: var(--color-accent);
  padding-bottom: 30px;
}

h2 {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  font-size: 16px;
  font-weight: normal;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

button {
  border: none;
  background-color: transparent;
  cursor: pointer;
  color: inherit;
}

ul {
  list-style-type: none;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

.container {
  padding: 50px;
}

/* Header */
header {
  padding: 30px;
}

.logo img {
  max-width: 300px;
}

.navbar-container {
  position: relative;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.hamburger {
  border: 1px solid var(--color-border);
  padding: 8px;
  border-radius: 4px;
}

.hamburger .bx {
  font-size: 20px;
}

.menu {
  display: none;
  position: absolute;
  top: 80px;
  background-color: #fff;
  width: 85%;
  padding: 20px;
  font-size: 16px;
}

.menu-bar > li:not(:first-child),
.dropdown-btn {
  padding-bottom: 20px;
}

.dropdown ul > li {
  padding-bottom: 20px;
}

.nav-link {
  font-size: 16px;
}

.dropdown {
  display: none;
}

.menu.show,
.dropdown.active {
  display: block;
}

.calendar {
  padding: 20px;
}

.month {
  padding: 10px;
  text-align: center;
}

.month h2 {
  padding-top: 20px;
  padding-bottom: 10px;
}

.week-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin: 5px 0;
}

.week-day {
  text-align: center;
}

.days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.day {
  padding: 5px;
  text-align: center;
  position: relative;
}

.download-btn {
  display: flex;
  justify-content: center;
  margin-bottom: 30px;
}

.primary-btn {
  font-size: 1rem;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
  padding: 10px 30px;
  border-radius: 4px;
}

.border {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 15px;
  text-align: center;
}

.top-list {
  list-style-type: none;
  display: flex;
  justify-content: space-around;
}

.top-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.box {
  display: inline-block;
  width: 15px;
  height: 15px;
}

.legend h2 {
  font-size: 1.2rem;
  font-weight: 500;
  text-decoration: underline;
  margin-bottom: 20px;
}

.legend p {
  font-size: 14px;
}

.holiday-legend {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.holiday,
.observed-holiday {
  background-color: var(--color-public-holiday);
}

.gifted-lab-holiday {
  background-color: var(--color-gifted-lab-holiday);
}

.school-designated-closure {
  background-color: var(--color-school-designated-closure);
}

.terms-content li,
.terms-content p {
  padding: 10px;
}

footer {
  font-size: 0.8rem;
  text-align: center;
  color: var(--color-muted);
  margin-bottom: 20px;
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
    margin: 0 auto;
  }

  .calendar {
    font-size: 14px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media screen and (min-width: 1200px) {
  .container {
    max-width: 1140px;
    margin: 0 auto;
  }

  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 100px;
  }

  .menu {
    display: block;
    position: relative;
    top: 0;
    width: auto;
  }

  .menu-bar {
    position: relative;
    display: flex;
    gap: 20px;
  }

  .dropdown {
    position: absolute;
  }

  .hamburger {
    display: none;
  }

  .calendar {
    font-size: 14px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .legend h2 {
    font-size: 1.25rem;
  }

  .download-btn {
    justify-content: flex-end;
  }

  .holiday-legend {
    grid-template-columns: repeat(5, 1fr);
  }
}