@import url("//fonts.googleapis.com/css?family=Google+Sans:400,500,600,700");
@import url("//fonts.googleapis.com/css?family=Roboto+Mono:400,500");
@import url("https://fonts.googleapis.com/icon?family=Material+Icons");
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Google Sans", Helvetica, Arial, sans-serif;
  scroll-behavior: smooth;
  transition: 0.2s;
}
:root {
  --primaryBlue: #f3f6fc;
  --deepBlue: #0b57d0;
  --lightBorder: #cfcfcf;
  --bg: white;
  --textClr: black;
  --insideWhite: white;
}

body {
  font-weight: 500;
  letter-spacing: 0.3px;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizelegibility;
  background-color: var(--bg);
  color: var(--textClr);
}

header {
  padding: 10px;
  width: 91%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.inputBox {
  border: 1px solid var(--lightBorder);
  width: 90%;
  margin: 10px auto;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-radius: 25px;
}
.inputBox i {
  padding: 10px;
}
.inputBox input[type="text"] {
  padding: 15px 10px;
  width: 100%;
  border: none;
  outline: none;
  font-size: 18px;
  border-left: 1px solid var(--lightBorder);
  background-color: var(--bg);
  color: var(--textClr);
}
.inputBox input:focus::placeholder {
  color: var(--deepBlue);
}
.inputBox.sticky {
  position: fixed;
  top: -10px;
  left: 50%;
  width: 100%;
  transform: translateX(-50%);
  background-color: var(--insideWhite);
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.inputRangeBox {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-left: 1px solid var(--lightBorder);
  width: 60%;
  height: 53px;
}
input[type="range"] {
  width: 100%;
}
main {
  width: 90%;
  margin: 15px auto;
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 10px;
  background-color: var(--primaryBlue);
  border-radius: 25px;
  padding: 10px;
  margin-top: 20px;
}
main .font_box {
  padding: 10px;
  border-radius: 25px;
  background-color: var(--insideWhite);
  width: 100%;
}
main .font_box h3 {
  font-size: 17px;
  font-weight: 400;
  line-height: 1.5rem;
  letter-spacing: normal;
  padding: 5px;
}
main .font_box .tools {
  display: flex;
  align-items: flex-end;
  justify-content: end;
  margin-top: 8px;
  gap: 5px;
}

main .font_box .tools i {
  font-size: 17px;
  width: 35px;
  height: 35px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  cursor: pointer;
  border: 1px solid var(--lightBorder);
  color: var(--deepBlue);
  font-weight: 400;
}
main .font_box .tools i:hover {
  background-color: var(--deepBlue);
  color: white;
}
body::-webkit-scrollbar {
  width: 0.4em;
  height: 0.4em;
  background-color: var(--primaryBlue);
}

body::-webkit-scrollbar-track {
  background-color: var(--primaryBlue);
  border-radius: 10px;
}

body::-webkit-scrollbar-thumb {
  background-color: var(--lightBorder);
  border-radius: 10px;
}

.slider {
  appearance: none;
  width: 100%;
  height: 15px;
  background: var(--lightBorder);
  outline: none;
  opacity: 0.7;
  -webkit-transition: 0.2s;
  transition: opacity 0.2s;
  border-radius: 10px;
}

.slider:hover {
  opacity: 1;
}
footer {
  width: 100%;
  text-align-last: center;
  position: sticky;
  top: 100%;
  font-size: 12px;
  color: gray;
  padding: 10px;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 25px;
  height: 25px;
  background: var(--deepBlue);
  border-radius: 50px;
  cursor: pointer;
}

@media (width<=480px) {
  .inputRangeBox {
    display: none;
  }
  main .font_box .tools i:hover {
    background-color: transparent;
    color: var(--deepBlue);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --primaryBlue: #222327;
    --deepBlue: #68a7ff;
    --lightBorder: #616161;
    --bg: #000000;
    --insideWhite: #131314;
    --textClr: #f2f2ff;
  }
}