:root {
    font-size: 62.5%; /* 1rem = 10px */
    --color-primary: hsl(210, 30%, 20%);
    --color-secondary: hsl(45, 100%, 51%);
    --color-font: hsla(0, 0%, 100%, 0.902);
    --color-shadow: hsl(210, 30%, 30%);

    /* scheme 0 */
    --scheme0-primary: hsl(235, 35%, 19%);
    --scheme0-secondary: hsl(358, 78%, 69%);
    --scheme0-font: hsla(0, 0%, 100%, 0.902);
    --scheme0-shadow: hsl(235, 36%, 35%);

    /* scheme 2 */
    --scheme2-primary: hsl(120, 34%, 21%);
    --scheme2-secondary: hsl(340, 82%, 52%);
    --scheme2-font: hsla(0, 0%, 100%, 0.902);
    --scheme2-shadow: hsl(120, 34%, 31%);

    /* scheme 3 */
    --scheme3-primary: hsl(180, 29%, 24%);
    --scheme3-secondary: hsl(36, 77%, 61%);
    --scheme3-font: hsla(0, 0%, 100%, 0.902);
    --scheme3-shadow: hsl(180, 29%, 34%);

    /* scheme 4 */
    --scheme4-primary: hsl(260, 30%, 20%);
    --scheme4-secondary: hsl(60, 70%, 50%);
    --scheme4-font: hsla(0, 0%, 100%, 0.902);
    --scheme4-shadow: hsl(260, 30%, 30%);

    /* scheme 5 */
    --scheme5-primary: hsl(0, 0%, 20%);
    --scheme5-secondary: hsl(220, 90%, 55%);
    --scheme5-font: hsla(0, 0%, 100%, 0.902);
    --scheme5-shadow: hsl(0, 0%, 30%);
}

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

html, body {
    height: 100%;
    background-color: var(--color-primary);
    font-size: 1.6rem;
    font-family: 'Open sans', sans-serif;
}
.color-selection {
    display: flex;
    justify-content: center;
    margin: 2rem 0;
}

.color-box {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 10px;
    cursor: pointer;
    transition: transform 0.3s ease;
    border: 2px solid var(--color-primary); /* Black outline by default */
}

.color-box.selected {
    border-color: var(--color-font); /* White outline for the selected circle */
}

.color-box:hover {
    transform: scale(1.2);
}
p,
i,
h1 {
    color: var(--color-font);
}

i {
    font-size: 3.2rem;
}

h1 {
    font-size: 3.2rem;
}

/* ==== CONTENT ==== */

section {
    display: flex;
    align-items: center;
    height: 100%;
}

.container {
    width: min(42.5rem, 100%);
    margin-inline: auto;
    padding-inline: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.container2 {
    margin-inline: auto;
    padding-inline: 2rem;
    grid-column-gap: 5em;
    display: grid;
    grid-template-columns: auto auto;
    align-items: center;
    margin: 3rem;
}
.painel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    text-align: center;
    width: 20rem;
    margin-block: 5rem;
    padding: 1rem;
    border-radius: 10rem;
    -webkit-box-shadow: 0px 0px 15px 10px var(--color-shadow); 
    box-shadow: 0px 0px 15px 10px var(--color-shadow);
}

.painel p {
    opacity: .8;
    transition: 1s ease-in;
}

.painel p.active {
    opacity: 1;
    color: var(--color-secondary);
}

.timer {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 30rem;
    height: 30rem;
    border-radius: 50%;
    -webkit-box-shadow: 0px 0px 15px 10px var(--color-shadow); 
    box-shadow: 0px 0px 15px 10px var(--color-shadow);
}

.circle {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 26rem;
    height: 26rem;
    border-radius: 50%;
    background-color: var(--color-secondary);
    position: relative;
}

.circle::before {
    content: '';
    position: absolute;
    width: 95%;
    height: 95%;
    border-radius: 50%;
    background-color: var(--color-primary);
}

.time {
    position: relative;
    display: flex;
    flex-direction: row;
}

.time p {
    font-size: 5.6rem;
}

.time p:nth-of-type(2) {
    position: relative;
    top: -.5rem;
    margin-inline: 1rem;
}

.controls {
    margin-top: 3rem;
}
.form {
    background-color: var(--color-secondary);
    padding: 1rem;
    border-radius: 10px;
    box-shadow: 0px 0px 15px 5px var(--color-shadow);
    margin-bottom: 2rem;
    width: 100%;
    max-width: 500px;
}

.form table {
    width: 100%;
}

.form label {
    color: var(--color-font);
    font-size: 1.6rem;
    font-weight: 600;
    padding-right: 1rem; /* Add padding to the right for better spacing */
}

.form input[type="number"] {
    padding: 0.8rem;
    border-radius: 5px;
    border: none;
    font-size: 1.6rem;
    box-sizing: border-box; /* Ensure padding and border are included in the element's total width and height */
    width : 100px;
}

.form input[type="number"]:focus {
    outline: none;
    box-shadow: 0px 0px 10px 2px var(--color-shadow);
}

.form td {
    padding: 1rem;
    vertical-align: middle; /* Align text vertically in the middle */
}

.buttonContainer {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    column-gap: 40%;
    width: 100%;
    padding: 1rem;
}
.controls button,
.controls a {
    border: none;
    background-color: transparent;
    cursor: pointer;
    transition: transform 40ms ease; 
    padding: 0.5rem; 
}

.controls button i,
.controls a i {
    display: inline-block; 
    font-size: 3rem; 
    line-height: 1; 
    margin: 0; 
}


.controls button:hover i,
.controls a:hover i {
    transform: scale(1.2); 
}

/* Additional styles to remove box-shadow and outline */
.controls button:focus,
.controls a:focus {
    outline: none;
    box-shadow: none;
}

.controls #reset {
    display: none;
}

@media (max-width: 768px) {
    section {
        flex-direction: column;
        align-items: flex-start;
    }

    .container {
        width: 100%;
        padding-inline: 1rem;
    }

    .container2 {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .form {
        width: 100%;
        max-width: 300px;
        margin-bottom: 2rem;
    }
    .timer {
        /*width: 100%;*/
        /*max-width: 300px;*/
        margin-bottom: 2rem;
    }

    input {
        max-width : 60px;
    }
    .buttonContainer {
        display: flex;
        justify-content: center;
        gap: 2rem;
    }

    .painel {
        width: 100%;
        margin-block: 2rem;
        padding: 1rem;
    }
}