style.css

:root {
    --bg: #f0f2f5;
    --bg-header: #2d4a22;
    --bg-card: #fff;
    --bg-th: #fff;
    --bg-td: #fff;
    --bg-input: #fff;
    --text-color-table: #969cb3;
    --text-color-input: #000;
    --dark-blue: #363f5f;
    --green: #49aa26;
    --light-green: #3dd705;
    --red: #e92929;
    --color-income: #12a454;
    --color-expense: #e92929;
    --color-checkbox-label: #3e8724;
    --color-help: #000;

    --transition: 0.3s linear;
}

.dark-mode:root {
    --bg: #303030;
    --bg-header: #32721a;
    --bg-card: #424242;
    --bg-th: #424242;
    --bg-td: #525252;
    --bg-input: #424242;
    --text-color-table: #dddddd;
    --text-color-input: #fff;
    --dark-blue: #dddddd;
    --green: #388e3c;
    --light-green: #2bb132;
    --red: #d32f2f;
    --color-income: #12a454;
    --color-expense: #e92929;
    --color-checkbox-label: #424242;
    --color-help: #ffffff;

    --transition: 0.3s linear;
}

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

html {
    font-size: 93.75%; /* 15px */
}

body {
    background: var(--bg);
    font-family: 'Poppins', sans-serif;

    transition: var(--transition);
}

.sr-only { /* esconder o elemento sem afetar os leitores de telas */
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0,);
    white-space: nowrap;
    border-width: 0;
}

.container {
    width: min(90vw, 800px);
    margin: auto;
}

/* checkbox */
.switch {
    width: min(90vw, 800px);
    margin: auto;

    margin-bottom: 5px;
    display: flex;
    justify-content: flex-end;
}

.checkbox {
    opacity: 0;
    position: absolute;
}

.icon {
    background: var(--color-checkbox-label);
    width: 50px;
    height: 26px;
    padding: 0 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    border-radius: 58px;
    transition: 0.2s linear;
    cursor: pointer;
}

.ball {
    background: rgb(255, 255, 255);
    top: 2px;
    left: 2px;
    width: 22px;
    height: 22px;
    position: absolute;
    border-radius: 50%;
    transition: transform 0.2s linear;
}

.checkbox:checked + .icon .ball { /* classe checkbox que tiver checked, elemento label imediatamente após ele, classe ball */
    transform: translateX(24px);
}

.fa-moon {
	color: rgb(255, 255, 255);
}

.fa-sun {
	color: rgb(255, 230, 0);
}





/* Titles */
h2 {
    margin-top: 3.2rem;
    margin-bottom: 0.8rem;
    color: var(--dark-blue);
    font-weight: normal;
}

/* Links & Buttons */
a {
    color: var(--green);
    text-decoration: none;
}

a:hover {
    color: var(--light-green);
}

button {
    background: var(--green);
    color: #fff;

    width: 100%;
    height: 50px;
    
    padding: 0;

    border: none;
    border-radius: .25rem;

    cursor: pointer;
}

button:hover {
    background: var(--light-green);
}

.button.new { /* Pegar somente os elementos que tiveram as duas classes */
    display: inline-block;
    margin-bottom: .8rem;
}

.button.cancel {
    display: flex;
    height: 50px;
    color: var(--red);

    align-items: center;
    justify-content: center;

    border: 2px solid var(--red);
    border-radius: .25rem;

    opacity: .6;
}

.button.cancel:hover {
    opacity: 1;
}

/* Header */
header {
    background: var(--bg-header);
    padding: 2rem 0 10rem;
    text-align: center;

    transition: background var(--transition);
}

.animationImg {
    animation: logoAnimation 1s ease-in-out forwards;
}

#logo {
    color: #fff;
    font-weight: 100;
}

/* Balance */
#balance {
    margin-top: -8rem;
}

#balance h2 {
    color: #fff;
    margin-top: 0;
}

/* Cards */
.card {
    background: var(--bg-card);
    color: var(--dark-blue);
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    border-radius: 0.25rem;

    opacity: 0;

    animation: cardAnimation 0.8s 0s forwards;
    transition: background var(--transition);
}

.card h3 {
    font-weight: normal;
    font-size: 1rem;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card p {
    font-size: 2rem;
    line-height: 3rem;
    margin-top: 1rem;
}

.card.total { /* procurar elementos que tem as duas classes */
    background: var(--green);
    color: #fff;

    transition: background var(--transition);
}

/* Table */
#transaction {
    display: block;
    width: 100%;

    overflow-x: auto; /* Criar rolagem na tabela quando transbordar na tela */
}
#data-table {
    color: var(--text-color-table);
    width: 100%;
    border-spacing: 0 0.5rem;

    transition: color var(--transition);
}

table thead th {
    background: var(--bg-th);
    color: var(--text-color-table);
    text-align: left;
    font-weight: normal;
    padding: 1rem 2rem;

    transition: color var(--transition);
}

table thead tr th:first-child,
table tbody tr td:first-child {
    border-radius: 0.25rem 0 0 0.25rem;
}

table thead tr th:last-child,
table tbody tr td:last-child {
    border-radius: 0 0.25rem 0.25rem 0;
}

table tbody tr {
    opacity: 0.7;
}

table tbody td img {
    cursor: pointer;
}

table tbody tr:hover {
    opacity: 1;
}

table tbody td {
    background: var(--bg-td);
    padding: 1rem 2rem;
}

td.description {
    color: var(--dark-blue);

    transition: color var(--transition);
}

td.income {
    color: var(--color-income);

    transition: color var(--transition);
}

td.expense {
    color: var(--color-expense);

    transition: color var(--transition);
}

/* Modal */
.modal-overlay {
    background: rgba(0, 0, 0, .7);
    width: 100%;
    height: 100%;

    position: fixed;
    top: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    opacity: 0;
    visibility: hidden;

    z-index: 999;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg);
    width: 90%;
    max-width: 500px; /* Tamanho máximo 500px */
    padding: 2.4rem;

    position: relative;
    z-index: 1;
}

.modal .error {
    margin: 2px 0 4px 0;
    font-size: 13px;
    color: var(--red);
}

.modalAnimation {
    animation: modalAnimation 0.5s ease-out forwards;
}

/* Form */
#form {
    max-width: 500px; /* Tamanho máximo 500px */
}

#form h2 {
    margin-top: 0;
}

#form form input {
    background: var(--bg-input);
    color: var(--text-color-input);
    width: 100%;
    padding: .8rem;

    border: none;
    border-radius: .2rem;
}

.input-group {
    margin-top: .8rem;
}

.input-group:last-child {
    margin-top: 0px;
}

.input-group .help {
    color: var(--color-help);
    opacity: .4;
}

.input-group.actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.input-group.actions .button,
.input-group.actions button {
    width: 48%;
}

/* Footer */
footer {
    text-align: center;
    padding: 4rem 0 2rem;
    color: var(--dark-blue);
    opacity: 0.6;
}

/* Responsive */
@media (min-width: 800px) { /* Aplica esse CSS somente se a tela tiver MAIS DE 800px */
    html {
        font-size: 87.5%; /* 14px */
    }

    #balance {
        display: grid;
        grid-template-columns: repeat(3, 1fr); /* Repetir três vezes uma fração */
        gap: 2rem;
    }
}


@keyframes cardAnimation {
    from {
        transform: translateY(80px);
        opacity: 0;
    }

    to {
        transform: translateY(0px);
        opacity: 1;
    }
}

@keyframes logoAnimation {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.01);
    }
    65% {
        opacity: 1;
        transform: scale(1);
    }
    80% {
        opacity: 1;
        transform: scale(1.01);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounceIn{
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.01);
    }
    65% {
        opacity: 1;
        transform: scale(1);
    }
    80% {
        opacity: 1;
        transform: scale(1.01);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
  }

@keyframes modalAnimation {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}