@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap");

:root {
  --font1: "Roboto", sans-serif;
  --backgroundColor1: #99a3a3;
  --letterSpacing: 0.7px;

  --boxSize1: 250px;
  --boxSize2: 150px;

  --boxColor1: #808080;
  --boxColor2: #99a3a3;

  --slideMenuColor1: #111111;
  --slideMenuColor2: #333333;
  --slideMenuColor3: #99a3a3;
  --slideMenuColor4: #788b8b;
  --slideMenuColor5: #dda0dd;

  --accordionColor1: #b0b0b0;
  --accordionColor2: #cccccc;
  --accordionColor3: #d0d0d0;
  --accordionColor4: #e0e0e0;
  --accordionColor5: #505050;

  --copyColor1: #99a3a3;
  --copyColor2: #404040;
  --copyColor3: #666666;
  --copyColor4: #808080;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--backgroundColor1);
  font-family: var(--font1);
}

/* PAGE CONTENT: START */
.container {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  place-content: center;
  padding: 0 20px;
}

h1 {
  color: var(--slideMenuColor1);
  font-size: 24px;
  margin: 30px auto;
}

.box {
  background-color: var(--boxColor1);
  color: var(--boxColor2);
  font-size: 72px;
  height: var(--boxSize1);
  width: auto;
  line-height: var(--boxSize1);
  text-align: center;
  margin-bottom: 20px;
} /* PAGE CONTENT: END */

/* HAMBURGER ICON: START */
.menu-toggle {
  position: absolute;
  top: 0;
  right: 0;
  font-size: 18px;
  background-color: var(--slideMenuColor3);
  color: var(--slideMenuColor1);
  padding: 8px 16px;
  border-bottom-left-radius: 10px;
  cursor: pointer;
  z-index: 1000;
  transition: color 0.7s ease;
} /* HAMBURGER ICON: END */

.menu-toggle:hover {
  background-color: var(--slideMenuColor4);
}

/* SLIDING MENU: START */
.sliding-menu {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100%;
  background-color: var(--slideMenuColor2);
  padding: 20px 40px 20px 20px;
  transition: right 0.3s ease;
  overflow-y: scroll;
  -ms-overflow-style: none;
  /* Hide scrollbar for Chrome, Safari and Opera */
  scrollbar-width: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.sliding-menu::-webkit-scrollbar {
  display: none;
}

.sliding-menu.active {
  right: 0;
}

.sliding-menu h2 {
  color: var(--slideMenuColor5);
  font-size: 20px;
  letter-spacing: var(--letterSpacing);
  margin: 32px 0;
} /* SLIDING MENU: END */

/* ACCORDION: START */
.accordion {
  font-family: var(--font1);
  font-size: 16px;
  width: 100%;
  background-color: transparent;
  color: var(--accordionColor1);
  text-align: left;
  letter-spacing: var(--letterSpacing);
  padding: 16px 16px 16px 0;
  border: none;
  border-top: 1px solid var(--accordionColor5);
  outline: none;
  cursor: pointer;
  transition: 0.4s;
}

.accordion:first-of-type {
  border-top: none;
}

.accordionActive,
.accordion:hover {
  color: var(--accordionColor4);
}

.accordion:after {
  content: "\002B";
  color: var(--accordionColor2);
  float: right;
  margin-left: 5px;
}

.accordionActive:after {
  content: "\2212";
}

.panel {
  background-color: var(--accColor5);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.panel p {
  font-size: 15px;
  color: var(--accordionColor1);
  letter-spacing: var(--letterSpacing);
  margin-bottom: 20px;
}

.description {
  font-size: 16px;
  color: var(--accordionColor3);
  letter-spacing: var(--letterSpacing);
  margin-bottom: 30px;
} /* ACCORDION: END */

.copy {
  background-color: var(--copyColor1);
  color: var(--copyColor2);
  font-size: 14px;
  text-align: center;
  letter-spacing: var(--letterSpacing);
  padding: 20px 0;
  margin-top: 50px;
}

.copy a {
  color: var(--copyColor2);
  text-decoration: underline dotted;
  text-decoration-color: var(--copyColor3);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 6px;
}

.copy a:hover {
  color: var(--copyColor2);
  text-decoration-color: var(--copyColor4);
}

/* MEDIA QUERIES */
@media only screen and (max-width: 680px) {
  .box {
    height: var(--boxSize2);
    line-height: var(--boxSize2);
  }
}

@media only screen and (max-width: 450px) {
  h1 {
    margin: 60px 0 20px 0;
  }
}

@media only screen and (max-width: 398px) {
  .copy {
    padding: 6px 0;
    line-height: 1.6;
  }

  .copy2 {
    display: block;
  }

  .box {
    height: var(--boxSize2);
    line-height: var(--boxSize2);
    font-size: 48px;
  }
}

@media only screen and (max-width: 320px) {
  .sliding-menu {
    right: -250px;
    width: 250px;
  }
}

@media only screen and (max-width: 270px) {
  .sliding-menu {
    right: -180px;
    width: 180px;
  }

  .accordion {
    font-size: 15px;
  }

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