/*=============== GOOGLE FONTS ===============*/
@import url("https://fonts.googleapis.com/css2?family=Mulish:wght@300;400;500;700&display=swap");

/*=============== VARIABLES CSS ===============*/
:root {
  /*========== Colors ==========*/
  --hue-color: 190;

  --base-color: hsl(var(--hue-color), 12%, 18%);
  --dark-color: hsl(var(--hue-color), 10%, 8%);
  --accent-color: hsl(var(--hue-color), 25%, 50%);
  --white-color: #f9f5f6;

  /*========== Font and typography ==========*/
  --body-font: "Mulish", sans-serif;
  --biggest-font-size: 2.5rem;
  --small-font-size: 1rem;

  /*========== Font weight ==========*/
  --font-bold: 700;
  --font-medium: 500;
  --font-light: 300;

  /*========== Margins ==========*/
  --space-xsmall: 0.5rem;
  --space-small: 1rem;
  --space-medium: 1.5rem;
  --space-large: 2.5rem;
  --space-xlarge: 3.5rem;

  /*========== z index ==========*/
  --z-normal: 1;
  --z-tooltip: 10;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  background: var(--base-color);
  color: var(--text-color);
  width: 100vw;
  min-height: 100vh;
  padding: var(--space-large) var(--space-small);
}

a,
a:visited,
footer a:active {
  text-decoration: none;
  color: inherit;
}

a:hover {
  color: var(--accent-color);
}

/*=============== REUSABLE CSS CLASSES ===============*/
.container {
  max-width: 968px;
  min-height: calc(100vh - (var(--space-large) * 2));
  position: relative;
}

.flexColumnCenter {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.flexRowCenter {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

/*=============== BASIC HEADER & FOOTER ===============*/
header {
  margin: var(--space-medium) auto;
}

header h1 {
  font-size: var(--biggest-font-size);
  font-weight: var(--font-light);
  color: var(--white-color);
  text-transform: uppercase;
  letter-spacing: 1px;
}

footer {
  padding-top: var(--space-large);
}

footer p {
  font-size: var(--small-font-size);
  font-weight: var(--font-light);
  color: var(--white-color);
}

/*=============== BOXES ===============*/
.boxes {
  margin: var(--space-large) auto;
  max-width: 700px;
}

.box {
  width: 300px;
  height: 200px;
  border: 4px solid var(--dark-color);
  margin: var(--space-xsmall);
  background-color: var(--white-color);
  overflow: hidden;
}

.fill {
  background-image: url("https://source.unsplash.com/random/300x200/?nature");
  width: 295px;
  height: 195px;
  cursor: grab;
}

.hold {
  border: solid 5px #ccc;
  opacity: 0.75;
}

.hovered {
  background-color: var(--base-color);
  border-color: var(--white-color);
  border-style: dashed;
}

/*=============== MEDIA QUERIES ===============*/
/* For large devices */
@media screen and (min-width: 968px) {
  header {
    position: absolute;
    top: var(--space-medium);
    margin: 0 auto;
  }

  footer {
    position: absolute;
    bottom: var(--space-small);
    padding-top: 0;
  }

  .boxes.flexColumnCenter {
    margin: var(--space-medium) auto;
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media screen and (min-width: 1281px) {
  header {
    top: var(--space-large);
  }

  footer {
    bottom: var(--space-medium);
  }
}