/* Starting the CSS and doing the manual reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Styling the body */
body {
  /* Colors */
  /* Primary Color*/
  --strongCyan: hsl(172, 67%, 45%);

  /* Neutral Colors */
  --veryDarkCyan: hsl(183, 100%, 15%);
  --darkGrayishCyan: hsl(186, 14%, 43%);
  --grayishCyan: hsl(184, 14%, 56%);
  --lightGrayishCyan: hsl(185, 41%, 84%);
  --veryLightGrayishCyan: hsl(189, 41%, 97%);
  --white: hsl(0, 0%, 100%);
  --redError: hsl(0, 55%, 58%);

  /* Font */
  font-family: "Space Mono", monospace;
  font-weight: 700;
  font-size: 24px;

  /* Primary View */
  height: 100vh;
  display: flex;
  flex-direction: column;

  /* Background */
  background-color: var(--lightGrayishCyan);
}

/* Styling the header */
header {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 165px;
}

.logo {
  width: 88px;
  height: auto;
}

/* Styling the main container */
main {
  width: 100%;
  flex: 1;
  background-color: var(--white);
  border-radius: 24px 24px 0 0;
  padding: 22px 32px;
  display: flex;
  flex-direction: column;
}

h2 {
  font-size: 16px;
  color: var(--darkGrayishCyan);
}

h3 {
  font-size: 16px;
  color: var(--white);
}

input:focus {
  outline: 2px solid var(--strongCyan);
}

/* Styling the bill container */
.billContainer {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* Styling the bill and Number of People */
.bill,
.people {
  display: flex;
  flex-direction: column;
  gap: 7px;
  position: relative;
}

.bill input,
.people input {
  height: 49px;
  background-color: var(--veryLightGrayishCyan);
  border: none;
  border-radius: 5px;
  text-align: right;
  padding-right: 18px;

  /* Font */
  font-family: "Space Mono", monospace;
  font-weight: 700;
  font-size: 24px;
  color: var(--veryDarkCyan);
}

.bill input::placeholder,
.people input::placeholder {
  color: var(--grayishCyan);
  text-align: right;
}

.bill img,
.people img {
  position: absolute;
  height: auto;
  width: 13px;
  left: 18px;
  top: 45px;
}

/* Styling the tip buttons */
.tip {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.buttonsTip {
  display: flex;
  flex-direction: row;
  gap: 17px;
  flex-wrap: wrap;
}

.tipBtn {
  width: 47%;
  height: 48px;
  border-radius: 5px;
  border: none;
  background-color: var(--veryDarkCyan);

  /* Font */
  font-family: "Space Mono", monospace;
  font-weight: 700;
  font-size: 24px;
  color: var(--white);
}

.tipBtn.selected {
  background-color: var(--strongCyan);
  color: var(--veryDarkCyan);
}

.tipBtn#custom {
  text-align: right;
  padding-right: 18px;
  background-color: var(--veryLightGrayishCyan);
  color: var(--veryDarkCyan);
}

.tipBtn#custom::placeholder {
  color: var(--darkGrayishCyan);
}

/* Styling the error messages */
.messages {
  display: flex;
  justify-content: space-between;
  font-size: 16px;
  color: var(--redError);
}

#error {
  display: block;
}

.people input.errorMessage {
  border: 2px solid var(--redError);
}

/* Styling the calculator container */
.calculator {
  display: flex;
  flex-direction: column;
  padding: 30px 25px 24px;
  gap: 30px;
  margin-top: 33px;
  border-radius: 20px;
  background-color: var(--veryDarkCyan);
}

.calculator .total {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.calculator .total p {
  font-size: 14px;
  color: var(--grayishCyan);
}

.calculator .total h4 {
  font-size: 30px;
  color: var(--strongCyan);
}

.calculator .total .amountTip,
.calculator .total .amountTotal {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calculator #reset {
  width: 100%;
  height: 48px;
  border-radius: 5px;
  border: none;
  background-color: var(--strongCyan);

  /* Font */
  font-family: "Space Mono", monospace;
  font-weight: 700;
  font-size: 24px;
  color: var(--veryDarkCyan);
}

.calculator #reset.disabled {
  opacity: 0.2;
}

/* Media Queries for the Desktop view */
@media screen and (min-width: 1024px) {
  /* Styling the body */
  body {
    justify-content: center;
    align-items: center;
    gap: 10px;
  }

  /* Styling the header */
  header {
    min-height: auto;
  }

  .logo {
    position: relative;
    bottom: 80px;
  }

  /* Styling the main container */
  main {
    flex: none;
    width: 920px;
    height: 480px;
    border-radius: 24px;
    padding: 30px 30px 30px 46px;
    display: grid;
    gap: 10px;
    grid-template-columns: 1fr 1fr;
  }

  /* Styling the bill container */
  .billContainer {
    display: flex;
    flex-direction: column;
    gap: 36px;
    width: 92.5%;
    padding-top: 14px;
  }

  /* Styling the tip buttons */
  .tip {
    gap: 20px;
  }

  .buttonsTip {
    padding-left: 2px;
    gap: 15px;
  }

  .tipBtn {
    width: 116px;
  }

  .tipBtn#custom {
    text-align: center;
    padding-right: 0px;
  }

  /* Styling the calculator container */
  .calculator {
    margin-top: 0;
    justify-content: space-between;
    padding: 40px;
  }

  .calculator .total {
    gap: 30px;
  }

  .calculator .total h4 {
    font-size: 47px;
  }

  .calculator #reset {
    width: 100%;
    height: 48px;
    border-radius: 5px;
    border: none;
    background-color: var(--strongCyan);

    /* Font */
    font-family: "Space Mono", monospace;
    font-weight: 700;
    font-size: 24px;
    color: var(--veryDarkCyan);
  }
}