/* App Styling */
* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --background: #FFFFFF;
    --primary-accent: #5B5FCF;
    --secondary-accent: #FFD43B;
    --tertiary-accent: #f0f0ff;
    --success: #40C057;
    --error:  #FA5252;
    --card-bg: #F1F3F5;
    --text-primary: #1A1A2E;
    --text-muted: #888888;
}

.hidden {
    display: none;
}

body {
    padding: 20px;
}

main {
    width: 100%;
    padding-top: 30px;
    display: flex;
    flex-direction: column;
    
    
}

/* All Screens styling */
.screen-1, .screen-2, .screen-3 {
    max-width: 500px;
    width: 100%;
}

/* Screen 1 styling */
.screen-1 {
    width: 100%;
    min-height: 500px;
    border: 1px solid var(--card-bg);
    border-radius: 5px;
    padding: 4px 10px;
    margin: 20px auto;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.1)
}

.screen-1 header {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 100%;
    min-height: 120px;
    border-bottom: 1.5px solid var(--card-bg);
}

.app-name {
    color: var(--primary-accent);
}

.choose-category {
    margin: 15px 2px 15px 6px;
    font-size: 1rem;
}

.categories {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-gap: 10px;
    margin: 6px;
}

.category {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 70px;
    min-width: 30px;
    background: var(--card-bg);
    border: none;
    border-radius: 8px;
}

.category:hover {
    border: 1.5px solid var(--primary-accent);
    background: var(--tertiary-accent);
    cursor: pointer;
}

.category.selected {
    background: var(--primary-accent);
    color: white;
}

button#start-btn {
    display: flex;
    text-align: center;
    justify-content: center;
    min-width: 97%;
    padding: 8px 8px;
    margin-top: 25px;
    border: none;
    border-radius: 5px;
    margin: 25px auto;
    background: var(--primary-accent);
    color: white;
}

button#start-btn:hover {
    background: var(--secondary-accent);
}

/* Screen 2 styling */
.screen-2 {
    width: 100%;
    min-height: 500px;
    border: 1px solid var(--card-bg);
    border-radius: 5px;
    padding: 10px 15px;
    margin: 20px auto;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.1);
}

.overview {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-gap: 10px;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--card-bg);
    margin-bottom: 20px;
}

.question-overview {
    text-align: center;
    background: white;
    border: 1px solid var(--text-muted);
    border-radius: 8px;
    min-height: 70px;
    padding-top: 8px;
}

.time-overview {
    text-align: center;
    background: var(--secondary-accent);
    border-radius: 8px;
    min-height: 70px;
    padding-top: 8px;
}

.score-overview {
    text-align: center;
    background: var(--primary-accent);
    border-radius: 8px;
    min-height: 70px;
    padding-top: 8px;
}

.category-display {
    display: inline;
    font-size: small;
    color: var(--primary-accent);
    background: var(--tertiary-accent);
    padding: 2px 4px;
    min-height: 0.8rem;
    border-radius: 10px;
    margin-bottom: 20px;
}

.question-section {
    margin-top: 20px;
}

.option {
    display: flex;
    gap: 8px;
    min-height: 55px;
    border: 1px solid var(--card-bg);
    padding: 10px;
    margin-top: 10px;
    border-radius: 8px;
    align-items: center;
}

.option:hover {
    border-color: var(--primary-accent);
    background: #f0f0ff;
    cursor: pointer;
}

.option.selected {
    border-color: var(--primary-accent);
    background: var(--tertiary-accent);
}

.question-section .option.correct {
    border-color: var(--success);
    background: #d3f9d8;
    display: flex;
    align-items: center;
}

.question-section .option.wrong {
    border-color: var(--error);
    background: #ffe3e3;
    display: flex;
    align-items: center;
}

.option-letter {
    color: var(--primary-accent);
    background: var(--card-bg);
    padding: 2px;
    border-radius: 50%;
    text-align: center;
    min-height: 28px;
    min-width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

button#check-btn {
    background: var(--primary-accent);
    color: white;
    display: flex;
    justify-content: center;
    min-width: 100%;
    text-align: center;
    padding: 8px 8px;
    border: none;
    border-radius: 5px;
    margin: 25px auto;
    cursor: pointer;
}

button#check-btn:hover {
    background: var(--secondary-accent);
}

.screen-3 {
    min-height: 500px;
    width: 100%;
    border: 1px solid var(--card-bg);
    border-radius: 5px;
    padding: 10px 15px;
    margin: 0 auto;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.1);
}

/* Media Queries for desktop screen*/
@media (min-width: 600px) {
    .screen-1, .screen-2, .screen-3 {
        max-width: 500px;
    }
}

.complete-first-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.complete-mark {
    width: 72px;
    height: 72px;
    font-size: 2em;
    background: #d3f9d8;
    border: 6px solid var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--success);
}

.complete-notice {
    font-size: 2em;
}

.complete-result-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--primary-accent);
    border-radius: 5px;
    min-height: 130px;
    padding: 5px;
}

.complete-result-section p {
    color: var(--card-bg);
}

.complete-result-section h1 {
    font-size: 4em;
    color: var(--background);
}

.complete-message-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: #fbf4da;
    border: 1px solid var(--secondary-accent);
    border-radius: 5px;
    margin-top: 10px;
    min-height: 90px;
}

.score-review {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

.score-review .correct, .score-review .wrong {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border-radius: 5px;
    min-height: 80px;
}

button#play-again-btn {
    color: white;
    background: var(--primary-accent);
    min-width: 100%;
    margin-top: 20px;
    padding: 8px;
    border: 1px solid var(--card-bg);
    border-radius: 5px;
    cursor: pointer;
}

button#play-again-btn:hover {
    background: var(--secondary-accent);
}

#correct-answers {
    color: var(--success);
}

#wrong-answers {
    color: var(--error);
}