@import url("https://fonts.googleapis.com/css2?family=Rubik+Dirt&family=Sixtyfour&display=swap");

:root {
  --hsl-primary: 249, 31%, 26%;
  --hsl-secondary: 215, 27%, 42%;
  --hsl-tertiary: 176, 39%, 60%;
  --hsl-quaternary: 71, 64%, 82%;

  --default-opacity: 0.75;

  --primary: hsla(var(--hsl-primary), var(--default-opacity));
  --secondary: hsla(var(--hsl-secondary), var(--default-opacity));
  --tertiary: hsla(var(--hsl-tertiary), var(--default-opacity));
  --quaternary: hsla(var(--hsl-quaternary), var(--default-opacity));
}

* {
  /* border: 2px solid rgba(0, 0, 0, .2); */
  min-width: 2rem;
  min-height: 2rem;
  padding: 0;
  margin: 0;
  font-family: "Sixtyfour", sans-serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  font-variation-settings: "BLED" 0, "SCAN" 0;
  text-transform: uppercase;
}

body {
  display: flex;
  place-items: center;
  place-content: center;
  background: hsl(var(--hsl-primary));
}

#calendar__container {
  border-color: gray;
  min-height: 90vh;
  max-width: 90vw;
  display: flex;
  flex-direction: column;
  padding: 1em;
  gap: 1em;
}

#calendar__controls {
  display: flex;
  place-items: center;
  place-content: space-around;
  padding: 0;
  color: hsla(var(--hsl-tertiary), 0.5);
}

#calendar__controls h1,
#calendar__controls button {
  height: 100%;
  font-size: 3rem;
  margin: 0;
  text-shadow: 0.3rem 0.3rem 0.5rem hsla(var(--hsl-primary), 0.4);
}

#calendar {
  overflow: hidden;
  padding: 1em;
  display: flex;
  flex-direction: column;
  gap: 0.5em;
  color: hsl(var(--hsl-primary));
  text-shadow: 0.1em 0.1em 0 hsla(var(--hsl-tertiary), 0.4);
}

.calendar__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5em;
}

.calendar__dayname {
  font-size: 1rem;
  text-align: center;
  background: hsla(var(--hsl-primary), 0.2);
  color: white;
  padding: 0.5rem;
  border-radius: 0.5rem;
  border-color: brown;
  display: flex;
  place-items: center;
  place-content: center;
}

.calendar__week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.8em;
}

.calendar__day {
  background: var(--secondary);
  font-size: 1.5rem;
  display: flex;
  place-items: flex-start;
  place-content: flex-start;
  padding: 0.6rem;
  border-radius: 1rem;
  color: var(--bg-color);
}

.current-month.weekend {
  filter: saturate(0.5);
}

/* Different styles for months */
.prev-month {
  background: hsla(var(--hsl-tertiary), 0.15);
}

.next-month {
  background: hsla(var(--hsl-tertiary), 0.15);
}

.current-month {
  background: var(--secondary);
}

.weekend {
  background: hsla(var(--hsl-quaternary), 0.4);
  color: hsla(var(--hsl-primary), 1);
}

.today {
  outline: 3px solid hsla(var(--hsl-quaternary), 1);
  color: hsl(var(--hsl-quaternary));
  background-color: hsla(var(--hsl-secondary), 1);
  font-weight: bold;
}

button {
  background: var(--primary);
  color: var(--bg-color);
  border: none;
  padding: 0.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
}

.next-month,
.prev-month {
  opacity: 0.3;
}