* {
    border: 0;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--fundo);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='268' height='268' viewBox='0 0 800 800'%3E%3Cg fill='none' stroke='%23404' stroke-width='1'%3E%3Cpath d='M769 229L1037 260.9M927 880L731 737 520 660 309 538 40 599 295 764 126.5 879.5 40 599-197 493 102 382-31 229 126.5 79.5-69-63'/%3E%3Cpath d='M-31 229L237 261 390 382 603 493 308.5 537.5 101.5 381.5M370 905L295 764'/%3E%3Cpath d='M520 660L578 842 731 737 840 599 603 493 520 660 295 764 309 538 390 382 539 269 769 229 577.5 41.5 370 105 295 -36 126.5 79.5 237 261 102 382 40 599 -69 737 127 880'/%3E%3Cpath d='M520-140L578.5 42.5 731-63M603 493L539 269 237 261 370 105M902 382L539 269M390 382L102 382'/%3E%3Cpath d='M-222 42L126.5 79.5 370 105 539 269 577.5 41.5 927 80 769 229 902 382 603 493 731 737M295-36L577.5 41.5M578 842L295 764M40-201L127 80M102 382L-261 269'/%3E%3C/g%3E%3Cg fill='%23505'%3E%3Ccircle cx='769' cy='229' r='5'/%3E%3Ccircle cx='539' cy='269' r='5'/%3E%3Ccircle cx='603' cy='493' r='5'/%3E%3Ccircle cx='731' cy='737' r='5'/%3E%3Ccircle cx='520' cy='660' r='5'/%3E%3Ccircle cx='309' cy='538' r='5'/%3E%3Ccircle cx='295' cy='764' r='5'/%3E%3Ccircle cx='40' cy='599' r='5'/%3E%3Ccircle cx='102' cy='382' r='5'/%3E%3Ccircle cx='127' cy='80' r='5'/%3E%3Ccircle cx='370' cy='105' r='5'/%3E%3Ccircle cx='578' cy='42' r='5'/%3E%3Ccircle cx='237' cy='261' r='5'/%3E%3Ccircle cx='390' cy='382' r='5'/%3E%3C/g%3E%3C/svg%3E");
}

/* Configurações do menu */
.menu {
    position: fixed;
    color: white;
    padding: 2vh;
    width: 4vw;
    right: 0;
}

#menu-aberto {
    position: fixed;
    color: white;
    padding: 2vh;
    right: -1px;
    background-color: var(--fundo-menu);
    border: 2px solid var(--borda-menu);
    border-radius: 5px 0 0 5px;
    box-shadow: 0 0 7px #111111;
}

.menu ul {
    display: flex;
    flex-direction: column;
    list-style: none;
    vertical-align: center;
    align-items: flex-end;
    padding: 0 0 3% 0;
}

.menu ul li {
    vertical-align: middle;
    text-align: center;
    padding: 5% 0;
}

.menu #salvar {
    padding: 2% 4%;
    font-weight: 600;
    width: 100%;
    border: 1px solid var(--borda-dos-botoes);
    font-size: 1.2rem;
    min-width: 14px;
}

#menu-fechado img,
#seta-fechar-menu {
    min-height: 10px;
    min-width: 40px;
    width: 5vw;
    rotate: 180deg;
}

/* Aparecer/Desaparecer o menu */
@keyframes menu-animation {
    0% {
        right: -80%
    };
    100% {
        right: 0
    }
}

/*Configurações da calculadora*/

.calculadora {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.operacoes,
.historico {
    margin: 1.2vh 2vw;
    width: 40%;
    height: 80vh;
    min-width: 290px;
    max-width: 400px;
    min-height: 500px;
    max-height: 550px;
    background-color: var(--fundo-calculadora-historico);
    padding: 2%;
    border: 1px solid #838383;
    border-radius: 10px;
    box-shadow: 0 0 5px black;
}

#resultado {
    width: 95%;
    margin: auto;
    max-width: 100%;
    height: 30%;
    border: 1px solid rgb(82, 82, 82);
    border-radius: 10px;
    background-color: antiquewhite;
    text-align: right;
    font-size: 3rem;
    padding: 1% 2%;
    word-wrap: break-word;
    text-overflow: clip;
    color: rgb(20, 20, 20)
}

#numPad {
    width: 100%;
    height: 70%;
    margin-top: 2vh;

    display: flex;
    flex-wrap: wrap;


}

#numPad .btn {
    width: 18%;
    min-height: 25px;
    max-height: 4vh;

    padding: 2% 2% 4% 2%;
    background-color: var(--fundo-dos-botoes);
    color: var(--cor-dos-números-botoes);
    -webkit-text-stroke: 0.2px #f0f8ff;

    margin: 0 auto;
    border: 1px solid rgb(82, 82, 82);
    border-radius: 10px;
    box-shadow: 0 0 2px black;
    text-align: center;
    font-size: 1.8rem;

}

#numPad .btn:hover {
    background-color: rgb(175, 175, 175);
    cursor: pointer;
}

#btn0 {
    flex: 0.85 1 8%;
}

/*Configurações do Histórico*/

.historico {
    flex-wrap: wrap;
    text-overflow: clip;
}

.historico ul {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 95%;
    overflow-y: auto;
    justify-items: end;
}

.historico ul li {
    display: flex;
    font-size: 2rem;
    border: 1px solid var(--borda-dos-botoes);
    padding: 2%;
    justify-content: flex-end;
    flex-wrap: wrap;
    max-width: 100%;
    color: #f0f8ff;
    background-color: #000000;
}

.historico ul li:nth-last-child(1) {
    background-color: rgb(148, 148, 148);
}

/*Rodapé*/

footer {
    position: fixed;
    bottom: 0;
    text-align: right;
    width: 100%;
    background-color: black;
    color: #ffffff;
    padding: 1vh 0;
}

footer a {
    text-decoration: none;
    color: white;
}


footer a:hover {
    text-decoration: underline;
    color: #535fff
}


:root {
    /* Fundo da página */
    --fundo: #330033;

    /*Menu */
    --fundo-menu: #000000;
    --borda-menu: #3a3a3a;

    /* Cor de fundo da calculadora e do histórico */
    --fundo-calculadora-historico: #e6e6e6;

    /* Configurações dos botões */
    --fundo-dos-botoes: #999999;
    --borda-dos-botoes: #999999;
    --cor-dos-números-botoes: #000000;

}