@import url("https://fonts.googleapis.com/css2?family=Red+Hat+Display:wght@500;700;900&display=swap");

:root {

  /* Colors */
    /* Primary */
    --StrongCyan: hsl(172, 67%, 45%);
    /* Neutral */
    --VeryDarkCyan: hsl(183, 100%, 15%);
    --DarkGrayishCyanOne: hsl(186, 14%, 43%);
    --DarkGrayishCyanTwo: hsl(184, 14%, 56%);
    --LightGrayishCyanOne: hsl(185, 41%, 84%);
    --LightGrayishCyanTwo: hsl(189, 41%, 97%);
    --White: hsl(0, 0%, 100%);
    
  }
  .tip-container .tip .tip-custom::placeholder{
    color:gainsboro;
    
    
  }


body {
    margin: 0;
    font-family: "Space Mono", monospace;
    /*Weights: 400, 700 */
    background-color: var(--LightGrayishCyanOne);
    color: var(--DarkGrayishCyanOne);
  }
  
  h1 {
    text-transform: uppercase;
    text-align: center;
    font-size: 1.8rem;
    letter-spacing: 0.6rem;
    color: var(--VeryDarkCyan);
    opacity: 0.7;
  }
  form {
    padding: 1.5rem;
    background-color: var(--White);
    border-radius: 1rem;
  }
  input {
    background-color: var(--LightGrayishCyanTwo);
    padding: 1rem;
    box-sizing: border-box;
    border: none;
    border-radius: 0.5rem;
    width: 100%;
  }
  .input-custom {
    text-align: right;
    color: var(--VeryDarkCyan);
    font-size: 1.5rem;
    font-weight: 700;
  }
  .bill-input-container,
  .people-input-container,
  .tip-container {
    position: relative;
  }
  .error-msg {
    display: block;
    color: var(--OrangeIvalid);
    font-weight: 700;
    position: absolute;
    right: 0;
    bottom: 5rem;
  }
  .error-mgs-tip-custom {
    color: var(--OrangeIvalid);
    font-weight: 700;
    position: absolute;
    right: 0;
    top: -2.5rem;
  }
  .error-msg-none {
    display: none;
  }
  .bill-input {
    background-image: url("images/icon-dollar.svg");
    background-color: var(--LightGrayishCyanTwo);
    background-repeat: no-repeat;
    background-position: left 1rem center;
    padding-left: 2rem;
  }
  .input-custom:valid {
    border: 3px solid var(--StrongCyan);
  }
  .input-custom:invalid {
    border: 3px solid var(--OrangeIvalid);
  }
  .info-container {
    margin-bottom: 1.5rem;
  }
  .tip-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
  }
  .btn {
    border: none;
    background-color: var(--VeryDarkCyan);
    border-radius: 0.3rem;
    color: var(--White);
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
  }
  .btn:disabled {
    opacity: 0.7;
  }
  .tip-custom::placeholder {
    font-family: "Space Mono", monospace;
    font-size: 1.3rem;
    color: var(--DarkGrayishCyanOne);
    font-weight: 700;
    text-align: right;
  }
  .people-input {
    background-image: url("images/icon-person.svg");
    background-color: var(--LightGrayishCyanTwo);
    background-repeat: no-repeat;
    background-position: left 1rem center;
    padding-left: 2rem;
  }
  .results-container {
    background-color: var(--VeryDarkCyan);
    border-radius: 1rem;
    padding: 1.5rem;
    color: var(--White);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, auto);
    align-items: center;
  }
  h3 {
    text-align: right;
    color: var(--StrongCyan);
    font-size: 1.8rem;
    margin: 0;
  }
  .btn-submit {
    background-color: var(--StrongCyan);
    color: var(--VeryDarkCyan);
    font-weight: 700;
    font-size: 1.2rem;
    grid-column: 1/3;
    grid-row: 3/4;
    margin-top: 1rem;
    padding: 1rem;
    box-sizing: border-box;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
  }
  .btn-submit:disabled {
    opacity: 0.2;
  }
  .btn:hover,
  .btn-submit:hover {
    background-color: var(--LightGrayishCyanOne);
    color: var(--VeryDarkCyan);
  }
  .amount-tip-text,
  .total-text {
    margin-bottom: 0;
  }
  .amount-person,
  .total-person {
    margin-top: 0;
    font-size: 0.8rem;
    color: var(--DarkGrayishCyanTwo);
  }
  .attribution {
    font-size: 11px;
    text-align: center;
  }
  
  .attribution a {
    color: hsl(228, 45%, 44%);
  }
  
  .btn.is-active {
    background-color: var(--StrongCyan);
    color: var(--VeryDarkCyan);
  }
  
  @media screen and (min-width: 768px) {
    main {
      width: 60%;
      margin-left: auto;
      margin-right: auto;
      margin-bottom: 0.4rem;
    }
  }
  @media screen and (min-width: 1024px) {
    h1 {
      margin-top: 0.3rem;
      margin-bottom: 0.3rem;
    }
    form {
      display: flex;
      gap: 1.5rem;
    }
    .tip-container {
      grid-template-columns: repeat(3, 1fr);
      grid-template-rows: repeat(2, 1fr);
    }
    .results-container {
      min-width: 40%;
    }
    .input-custom {
      font-size: 1.2rem;
    }
    .btn {
      font-size: 1.2rem;
    }
  }