@import url('https://fonts.googleapis.com/css2?family=Rubik:ital,wght@0,300..900;1,300..900&display=swap');
*, *::after, *::before {box-sizing: border-box; margin: 0; padding: 0;}

:root {
    --spacing-100: 8px;
    --spacing-200: 16px;
    --spacing-300: 24px;
    --spacing-400: 32px;
    --spacing-500: 40px;
    --spacing-600: 48px;
    --spacing-800: 64px;
    --spacing-1600: 128px;
    --spacing-1800: 144px;
    --spacing-2300: 184px;

    --clr-white: #fff;
    --clr-black: #000;
    --clr-grey-500: #626C7F;
    --clr-grey-50: #F4F6fA;
    --clr-blue-950: #2d3949;
    --clr-blue-900: #313D51; 
    --crl-blue-850: #3B4D66;
    --clr-blue-500: #306AFF;
    --clr-blue-300: #ABC1E1;
    --clr-blue-100: #EDF1F9;
    --clr-green-500: #2FD887;
    --clr-green-100: #E0FDEF;
    --clr-purple-600: #A729F5;
    --clr-purple-100: #F6E7FF;
    --clr-orange-400: #FF7E35;
    --clr-orange-50: #FFF5ED;
    --clr-red-500: #EE5454;

    --clr-noselect: #EE5454;
    --clr-sunmoon: #626C7F;
    --clr-option: #F4F6fA;
    --clr-score: #313D51;
    --f-light: 300;
    --f-regular: 400;
    --f-medium: 500;
    --f-bold: 700;
    
}

.dark-mode {
    --clr-grey-50: #313D51;
    --clr-grey-500: #ABC1E1;
    --clr-white: #3B4D66;
    --clr-blue-900: #fff;
    --clr-sunmoon: #fff;
    --clr-score: #fff;
    --clr-noselect: #fff;
}


body {
    font-family: "Rubik", sans-serif;
    height: 100vh;
    width: 100%;
    background-image: url('../assets/images/pattern-background-mobile-light.svg');
    background-repeat: no-repeat;
    background-size: cover;
    background-color: var(--clr-grey-50);
    transition: all ease 0.4s;

}

.container {
    width: 90%;
    margin-inline: auto;
}


/*  ------------------------------------- hero */
.hero-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100px;
}

.hero__select {
    display: none;
    align-items: center;
    gap: var(--spacing-200);
}

.hero__choice {
    color: var(--clr-blue-900);
    font-weight: var(--f-medium);
    font-size: 18px;
}

.hero__nav {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--spacing-100);
    margin-left: auto;
}

li {
    list-style-type: none;
    place-content: center;
}

.hero__img > path {
    width: 12px; height: 12px;
    display: block;
    color: var(--clr-sunmoon);
}


.switch {
    position: relative;
    align-content: center;
    width: 32px; height: 20px;
    padding: 4px;
    border-radius: 20px;
    background-color: var(--clr-purple-600);
    cursor: pointer;
}

.circle {
    position: relative;
    background-color: #fff;
    width: 12px; height: 12px;
    transform: scale(1);
    border-radius: 50%;
    transition: transform 0.4s ease;
}

.move {
    transform: translateX(100%);
}

.start {
    margin-top: var(--spacing-400);
}

.start-content {
    display: flex;
    flex-direction: column;
}

.start__title {
    font-size: 40px;
    line-height: 1;
    font-weight: 300;
    letter-spacing: 0px;
    color: var(--clr-blue-900);
}


.medium {
    font-weight: var(--f-medium);
}

.start__italic {
    color: var(--clr-grey-500);
    font-size: 14px;
    line-height: 1.5;
    font-style: italic;
    margin-top: var(--spacing-200);
}


.start__topics {
    margin-top: var(--spacing-500);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-200);
}

.start__topics li {
    height: 72px;
    padding: var(--spacing-200);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-200);
    background-color: var(--clr-white);
    width: 100%;
    border-radius: 12px;
}

.icon {
    width: var(--spacing-500); height: var(--spacing-500);
    border-radius: 4px;
    padding: 5px;
}

.icon__html {
    background-color: var(--clr-orange-50);
}

.icon__css {
    background-color: var(--clr-green-100);
}

.icon__js {
    background-color: var(--clr-blue-100);
}

.icon__accessibility {
    background-color: var(--clr-purple-100);
}

.start__text {
    font-size: var(--f-medium);
    font-size: 18px;
    line-height: 1;
    color: var(--clr-blue-900);
}

/* question 6 of 10 */

.start-question {
    display: none;
    flex-direction: column;
}

.question__number {
    font-style: italic;
    color: var(--clr-grey-500);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: var(--spacing-200);
}

.question__title {
    font-size: 20px;
    color: var(--clr-blue-900);
    font-weight: var(--f-medium);
    margin-bottom: var(--spacing-300);
    line-height: 1.2;
}

.content-range {
    position: relative;
    border-radius: 20px;
    height: 16px;
    width: 100%;
    overflow: hidden;
    padding: 4px;
    background-color: var(--clr-white);
    align-content: center;
}

#range {
    -webkit-appearance: none;
    display: block;
    appearance: none;
    width: 100%;
    height: 100%;
    border-radius: 20px;
    background-image: linear-gradient(to right, var(--clr-purple-600) 0%, var(--clr-purple-600) 0%, var(--clr-white) 0%, var(--clr-white) 100%);
    background-repeat: no-repeat;
    background-size: auto;
}

/* Range Input: Slider Thumb Styles for Webkit */
#range::-webkit-slider-thumb{    
    -webkit-appearance: none;
    box-sizing: content-box;
    width: 20px;
    height: 100%;
    background: var(--clr-purple-600);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all .3s ease-in-out;
}


/* Range Input: Slider Thumb Styles for Mozilla */
#range::-moz-range-thumb{
    appearance: none;
    box-sizing: content-box;
    width: 20px;
    height: 100%;
    border: none;
    background: var(--clr-purple-600);
    border-radius: 50%;
    cursor: pointer;
    transition: all .3s ease-in-out;
}
#range::-moz-range-thumb:hover,
#range::-moz-range-thumb:active{
    background: black;
    border: none;
}

.question__options {
    margin-top: var(--spacing-500);
}

.icon__option {
    display: grid;
    place-items: center;
    border-radius: 12px;
    background-color: #F4F6fA;
    color: #626C7F;
    font-size: 18px;
    font-weight: var(--f-medium);
    width: var(--spacing-500); height: var(--spacing-500);
}

.icon__option--select {
    background-color: var(--clr-purple-600);
    color: #fff;
}

.btn-option {
    width: 100%;
    text-align: start;
    height: 100%;
    font-family: inherit;
    border: none;
    background-color: transparent;
    line-height: 60px;
    flex-grow: 1;
    width: 50px;
}

.btn-submit {
    width: 100%;
    height: 56px;
    border-radius: 12px;
    background-color: var(--clr-purple-600);
    border: none;
    color: #fff;
    font-size: 18px;
    font-weight: var(--f-medium);
    font-family: inherit;
    cursor: pointer;
    margin-top: 16px;
}

.option {
    cursor: pointer;
}


.option:hover, .option:active {
    outline: 2px solid var(--clr-purple-600);
}

.option--active {
    outline: 2px solid var(--clr-purple-600);
}

.option--correct {
    outline: 2px solid var(--clr-green-500);
}

.icon__option--correct {
    background-color: var(--clr-green-500);
    color: #fff;
}

.correct {
    display: none;
}

.incorrect {
    display: none;
}

.option--incorrect {
    outline: 2px solid var(--clr-red-500);
}

.icon__option--incorrect {
    background-color: var(--clr-red-500);
    color: #fff;
}

#btn-next {
    display: none;
}


.choice-quiz {
    cursor: pointer;
}

.start-score {
    display: none;
    flex-direction: column;
}

.score__title {
    color: var(--clr-score);
    font-size: 40px;
    font-weight: var(--f-light);
    line-height: 1;
}

.bold {
    font-weight: var(--f-medium);
}

.score__option {
    display: flex;
    align-items: center;
    gap: var(--spacing-200);
}

.score__text {
    font-size: 18px;
    font-weight: var(--f-medium);
    color: var(--clr-blue-900);
}

.score-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-200);
}

.block-content {
    margin-top: var(--spacing-500);
    background-color: var(--clr-white);
    border-radius: 12px;
    padding: var(--spacing-400);

}

#score {
    color: var(--clr-blue-900);
    font-size: 88px;
    font-weight: var(--f-medium);
}

.score__out {
    color: var(--clr-grey-500);
    font-size: 18px;
}

#no-select {
    margin-top: var(--spacing-200);
    display: none;
    text-align: center;
    color: var(--clr-noselect);
    font-weight: var(--f-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-100);
}

.error__img {
    vertical-align: baseline;
    display: inline-block;
}

.btn-submit--nochoice {
    background-color: hsl(277, 93%, 73%); 
}


@media screen and (min-width: 768px) {
    body {
        background-image: url('../assets/images/pattern-background-tablet-light.svg');
    }

    .hero__select {
        gap: var(--spacing-300);
    }

    .hero__choice {
        font-size: 28px;
    }

    .hero__nav {
        gap: var(--spacing-200);
    }

    .switch {
        width: 48px; height: 28px;
    }

    .circle {
        width: 20px; height: 20px;
    }

    .start {
        margin-top: var(--spacing-500);
    }

    .start__title {
        font-size: 64px;

    }

    .start__italic {
        font-size: 20px;
    }

    .start__topics {
        margin-top: var(--spacing-800);
        gap: var(--spacing-300);
    }

    .start__topics li {
        height: 88px;
        gap: var(--spacing-400);
    }

    .icon {
        width: 56px; height: 56px;
    }

    .start__text {
        font-size: 28px;
    }

    .question__number {
        font-size: 20px;
        margin-bottom: var(--spacing-300);
    }

    .question__title {
        margin-bottom: var(--spacing-500);
        font-size: var(--spacing-500);
    }

    .icon__option {
        font-size: 28px;
        width: 56px;
        height: 56px;
    }

    .btn-submit {
        height: 92px;
        font-size: 28px;
        margin-top: 32px;
    }

    .score__title {
        font-size: 64px;
    }

    .score__text {
        font-size: 28px;
    }

    #score {
        font-size: 144px;
    }

    .score__out {
        font-size: 24px;
    }

    .block-content {
        margin-top: var(--spacing-800);
        padding: var(--spacing-600);
    }

    #no-select {
        margin-top: var(--spacing-400);
        font-size: 24px;
    }

}


@media screen and (min-width: 1024px) {
    body {
        background-image: url('../assets/images/pattern-background-desktop-light.svg');
    }

    .start {
        margin-top: 0;
    }

    .start-content {
        flex-direction: row;
        gap: var(--spacing-1600);
    }

    .start__italic {
        margin-top: var(--spacing-800);
    }

    .start__topics {
        gap: var(--spacing-200);
        margin-top: 0;
        width: 100%;
    }

    .start__topics li {
        padding: var(--spacing-300);
        height: 104px;
    }

    .question__title {
        margin-bottom: 184px;
    }

    .question__options {
        margin-top: 0;
        width: 50%;
    }

    .start-question {
        flex-direction: row;
        gap: 128px;
        margin-top: 100px;
    }

    .question__texts {
        width: 40%;
    }

    .start-score {
        margin-top: 100px;
        flex-direction: row;
        gap: 144px;
    }
    

    .block-content {
        width: 100%;
        margin-top: 0;
        padding: var(--spacing-600);
    }
}