@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@700&display=swap');

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

:root {
    --Strong-cyan: hsl(172, 67%, 45%);
    --Very-dark-cyan: hsl(183, 100%, 15%);
    --Dark-grayish-cyan: hsl(186, 14%, 43%);
    --Grayish-cyan: hsl(184, 14%, 56%);
    --Light-grayish-cyan: hsl(185, 41%, 84%);
    --Very-light-grayish-cyan: hsl(189, 41%, 97%);
    --White: hsl(0, 0%, 100%);
    --error-color: #d81b60;
}

body {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    flex-direction: column;
    font-family: 'Space Mono', monospace;
    background-color: var(--Light-grayish-cyan);
}

.container {
    display: flex;
    gap: 20px;
    background-color: var(--White);
    padding: 15px;
    border-radius: 10px;
}

.data-entry,
.total {
    width: 50%;
}

/* Remove Arrow From Number Input*/
/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
/* Firefox */
input[type=number] {
  -moz-appearance: textfield;
}

.data-entry label {
    display: block;
    color: var(--Grayish-cyan);
    font-size: 15px;
    margin-bottom: 5px;
}
.data-entry .billInput,
.data-entry .tip-category {
    margin-bottom: 20px;
}

.data-entry .billInput,
.data-entry .peopleInput {
    display: block;
    position: relative;
}

.data-entry .billInput::before,
.data-entry .peopleInput::before {
    content: url(./images/icon-dollar.svg);
    position: absolute;
    top: 50%;
    left: 2%;
    transform: translateY(-50%);
}

.data-entry .billInput input,
.data-entry .peopleInput input {
    width: 100%;
    padding: 10px 5px;
    border: none;
    border-radius: 5px;
    outline: none;
    background-color: var(--Very-light-grayish-cyan);
    color: var(--Very-dark-cyan);
    text-align: right;
    font-size: 20px;
    font-weight: 700;
}

.data-entry .billInput input::placeholder,
.data-entry .peopleInput input::placeholder {
    color: var(--Grayish-cyan);
    font-size: 18px;
}

.data-entry .billInput input:focus,
.data-entry .peopleInput input:focus {
    border: 2px solid var(--Strong-cyan);
}

.data-entry .people-error {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.data-entry .people-error p {
    color: var(--error-color);
    font-size: 14px;
    text-transform: capitalize;
    display: none;
}

.data-entry .tip-category > p {
    color: var(--Grayish-cyan);
    font-size: 15px;
    margin-bottom: 10px;
}

.data-entry .tip-category .tip-num {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.data-entry .tip-category .tip-num button {
    width: calc((100% - 20px) / 3);
    padding: 10px 5px;
    border: none;
    outline: none;
    border-radius: 5px;
    background-color: var(--Very-dark-cyan);
    color: var(--White);
    font-weight: 600;
    margin-bottom: 10px;
    cursor: pointer;
    font-size: 20px;
    transition: .3s all;
}

.data-entry .tip-category .tip-num button:hover {
    background-color: var(--Strong-cyan);
}

.data-entry .tip-category .tip-num .customInput {
    width: calc((100% - 20px) / 3);
}

.data-entry .tip-category .tip-num .customInput input {
    max-width: 100%;
    background-color: var(--Very-light-grayish-cyan);
    text-align: center;
    color: var(--Very-dark-cyan);
    padding: 10px 5px;
    border: none;
    outline: none;
    border-radius: 5px;
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 20px
}

.data-entry .tip-category .tip-num .customInput input:focus {
    border: 2px solid var(--Strong-cyan);
}

.data-entry .tip-category .tip-num .customInput input::placeholder {
    color: var(--Grayish-cyan);
    font-size: 18px;
}

.total {
    background-color: var(--Very-dark-cyan);
    padding: 20px 30px;
    border-radius: 10px;
    position: relative;
}

.total .tip-amount,
.total .total-to-pay {
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.total .tip-amount span:first-of-type,
.total .total-to-pay span:first-of-type{
    position: relative;
    color: var(--White);
    text-transform: capitalize;
}

.total .tip-amount span:first-of-type::before,
.total .total-to-pay span:first-of-type::before {
    position: absolute;
    content: "/ person";
    left: 0;
    bottom: -15px;
    font-size: 12px;
    color: var(--Grayish-cyan);
    text-transform: lowercase;
    width: 120%;
}

.total .tip-amount span:nth-child(2),
.total .total-to-pay span:nth-child(2){
    font-size: 35px;
    color: var(--Strong-cyan);
}

.total button {
    display: block;
    width: 80%;
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
    border: none;
    outline: none;
    background-color: #0d686d;
    color: var(--Dark-grayish-cyan);
    padding: 15px;
    border-radius: 5px;
    text-transform: uppercase;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 1px;
    transition: .4s all;
    -webkit-transition: .4s all;
    -moz-transition: .4s all;
    -ms-transition: .4s all;
    -o-transition: .4s all;
}

.total button:hover {
    background-color: var(--Strong-cyan);
    color: var(--Very-dark-cyan);
}

.attribution {
    font-size: 11px;
    text-align: center;
}

.attribution a {
    color: hsl(228, 45%, 44%);
}

@media (max-width: 768px) {
    img[alt="logo"] {
        margin-bottom: 20px;
    }

    body {
        height: auto;
        padding-block: 30px;
    }

    .container {
        flex-direction: column;
        padding: 25px;
    }

    .data-entry .tip-category .tip-num button,
    .data-entry .tip-category .tip-num .customInput {
        width: calc((100% - 20px) / 2);
    }

    .data-entry, .total {
        width: 100%;
    }

    .total button {
        width: 100%;
        position: initial;
        transform: translateX(0);
    }


}