:root {
    --dark-blue: #1F2937;
    --medium-blue: #273549;
    --light-blue: #2F3E53;
    --white: #eee;
    --green: #4ADF86;
}


/* Base Styles */

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #1c1c1c;
    font: 300 20px/1.4 'Inter', sans-serif;
}

h1 {
    margin-bottom: 10px;
    font: 40px/1 'Karla', sans-serif;
    color: var(--white);
    letter-spacing: -.75px;
}

main {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 50px;
    border-radius: 15px;
    padding: 100px 50px;
    background-color: var(--dark-blue);
    color: var(--white);
}

/* Theme Mode Styles */

main.light-mode {
    background-color: #eee;
    color: var(--dark-blue);
    font-weight: 400;
}

main.light-mode p span.green,
main.light-mode #reset-btn {
    color: var(--dark-blue);
    font-weight: 500;
}

main.light-mode .password-group{
    border-top-color: #ccc;
}

main.light-mode h1 {
    color: var(--medium-blue);
}

#theme-toggle {
    position: absolute;
    top: 25px;
    right: 25px;
    padding: 7px;
    border-radius: 50%;
    background-color: var(--green);
}

main.light-mode #theme-toggle {
    background-color: var(--light-blue);
}

/* Utilities */

.green {
    color: var(--green);
}

.label {
    font-size: 12px;
    color: inherit;
}

button {
    border: none;
    font-size: 16px;
    font-weight: 500;
}

button:hover{
    cursor: pointer;
}

.checked {
    background-color: var(--green)!important;
}

/* Layout */

.btn-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 10px 0 20px 0;
}

.length-btn {
    display: inline-block;
    min-height: 40px;
    min-width: 40px;
    border-radius: 50px;
    background-color: var(--light-blue);
    color: var(--white);
    font-weight: 300;
}

#generate-btn {
    border-radius: 6px;
    padding: 9px 15px;
    background-color: var(--green);
    color: var(--white);
}

#reset-btn {
    display: block;
    background-color: inherit;
    color: var(--green);
    font-size: 12px;
    margin-top: 10px;
    font-weight: 300;
}

.password-group {
    display: flex;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--light-blue);
}

.output-container {
    display: flex;
    align-items: center;
    border-radius: 6px;
    background-color: var(--medium-blue);
    width: 100%;
}

.output-container:first-child {
    margin-right: 20px;
}

.password {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 9px 15px;
    border-radius: 6px;
    background-color: var(--medium-blue);
    width: 100%;
    font-size: 16px;
    color: var(--green);
    white-space: nowrap;
}

.copy-btn {
    position: relative;
    height: 100%;
    padding: 0px 5px;
    background-color: var(--light-blue);
    border-radius: 6px;
}

.copy-btn img {
    height: 42px;
    width: 42px;
}

.copy-btn:hover:before{
    display: block;
    position: absolute;
    content: "Copy";
    width: 85px;
    font-size: 12px;
    background-color: #1c1c1c;
    color: var(--white);
    padding: 9px 15px;
    border-radius: 6px;
    bottom: 120%;
    right: 0;
    z-index: 9999;
}

.copied:active:before,
.copied:hover:before {
    content: "Copied";
}


@media (max-width:565px) {
    body {
        font-size: 18px;
    }

    main {
        width: 90%;
    }

    h1 {
        font-size: 35px;
    }

    .btn-group {
        justify-content: initial;
        gap: 10px;
    }

    #generate-btn {
        width: 100%;
    }
    .password-group {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 525px) {
    main {
        padding: 100px 25px;
    }
}

@media (max-width: 450px) {
    main {
        width: 100%;
        border-radius: initial;
    }
}

@media (max-width: 350px) {
    h1 {
        margin-bottom: 15px;
    }
}