/* Google font API */
@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

:root {
    --background-image: url("./background-image.jpg");
    --instructions: rgba(255, 255, 255, 0.1);
    --line-color: rgba(255, 255, 255, 0.5);
    --text-color: rgb(64, 64, 64);
    --progress-bar: rgba(255,207,175,1);
    --box-shadow: rgba(17, 17, 26, 0.1) 0px 4px 16px, rgba(17, 17, 26, 0.05) 0px 8px 32px;

    /* Check Button */
    --check-button: linear-gradient(90deg, rgba(255,223,202,1) 0%, rgba(255,207,175,1) 52%, rgba(255,191,148,1) 100%);
    --check-button-hover: linear-gradient(270deg, rgba(255,223,202,1) 0%, rgba(255,207,175,1) 52%, rgba(255,191,148,1) 100%);

    /* Next Button */
    --next-button: linear-gradient(90deg, rgba(255,236,210,1) 0%, rgba(255,216,162,1) 59%, rgba(255,198,119,1) 100%);
    --next-button-hover: linear-gradient(270deg, rgba(255,236,210,1) 0%, rgba(255,216,162,1) 59%, rgba(255,198,119,1) 100%);

    /* Quit button */
    --quit-button:  linear-gradient(90deg, rgba(247,201,198,1) 0%, rgba(246,165,160,1) 52%, rgba(255,131,123,1) 100%);
    --quit-button-hover: linear-gradient(270deg, rgba(247,201,198,1) 0%, rgba(246,165,160,1) 52%, rgba(255,131,123,1) 100%);
}

/* Common padding */
.p2 {
    padding: 2%;
}

/* Common margin */
.m2 {
    margin: 2%;
}

/* Common border radius */
.br1half {
    border-radius: 1.5rem;
}

/* Do not display timer initially */
.timer {
    display: none;
}

/* All text color */
h1, h2,h3, h4, p, span {
    color: var(--text-color);
}

/* Main app */
main {
    margin: 0 auto;
    width: 85%;
    background-image: var(--background-image);
    background-size: cover;
    background-repeat: no-repeat;
    box-shadow: var(--box-shadow);
}

.main-quiz {
    display: none;
}

/* Header section */
header {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--line-color);
    align-items: center;
}

/* Get started section & Final score */
.get-started, .final-score {
    height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.get-started > *, .final-score > * {
    text-align: center;
    margin: 0 10%;
}

.instructions, .display-score {
    background: var(--instructions);
    margin-bottom: 5%;
    padding: 4%;
    backdrop-filter: blur(2px);
}

.start-button {
    background: var(--check-button);
    box-shadow: var(--box-shadow);
    cursor:pointer;
    border-style: none;
    width: 60%;
    margin-bottom: 5%;
}

.start-button:hover {
    background: var(--check-button-hover);
}

/* Other Final score style */
.final-score {
    display: none;
    height: 80vh;
}

.score-quit {
    width: 60%;
    margin: 0 auto;
    border-style: none;
    cursor: pointer;
    box-shadow: var(--box-shadow);
}

/* Progress section */
.progress-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1% 2%;
    box-shadow: var(--box-shadow);
    border-style: none;
}

.progress-bar {
    width: 70%;
    accent-color: var(--progress-bar);
}

/* Questions */
#option-1, #option-2, #option-3, #option-4 {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin: 3% 0;
    border-style: none;
    cursor: pointer;
    background: var(--line-color);
    box-shadow: var(--box-shadow);
    backdrop-filter:blur(2px);
    text-align: left;
}

/* Footer Buttons */
footer {
    display: flex;
    flex-direction: column;
}

footer > button {
    width: 30%;
    margin: 2% auto;
    border-style: none;
    cursor: pointer;
    box-shadow: var(--box-shadow);
}

.check-answer {
    background: var(--check-button);
}

.check-answer:hover {
    background: var(--check-button-hover);
}

.next-question, .finish-quiz {
    background: var(--next-button);
    display: none;
}

.next-question:hover, .finish-quiz:hover {
    background: var(--next-button-hover);
}

.quit-quiz {
    background: var(--quit-button);
}

.quit-quiz:hover {
    background: var(--quit-button-hover);
}