/*========== QUIZ PAGE ==========*/
.quiz-page {
    max-width: 1200px;
    margin: 120px auto 80px;
    padding: 0 8%;
}

.quiz-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.quiz-top h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.quiz-top p {
    color: var(--text-light);
}

.back-home {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 30px;
    border: 2px solid var(--primary);
    border-radius: 999px;
    color: var(--accent);
    background: transparent;
    font-weight: 600;
    transition: var(--transition);
}

.back-home:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border-color: transparent;
    transform: translateY(-3px);
}

/*========== START CARD ==========*/
.quiz-start-card {
    max-width: 900px;
    margin: auto;
    padding: 40px;
    border-radius: 25px;
    background: var(--glass);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
}

.quiz-start-card h2 {
    margin-bottom: 25px;
    font-size: 1.6rem;
}

/*========== CATEGORY ==========*/
.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 45px;
}

.category-btn {
    padding: 30px;
    border-radius: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    transition: var(--transition);
}

.category-btn i {
    font-size: 2rem;
    color: var(--accent);
}

.category-btn:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
}

.category-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    color: #fff;
}

.category-btn.active i {
    color: #fff;
}

/*========== DIFFICULTY ==========*/
.difficulty-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.difficulty-btn {
    padding: 18px;
    border-radius: 15px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-weight: 600;
    transition: var(--transition);
}

.difficulty-btn:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.difficulty-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    color: #fff;
}

/*========== START BUTTON ==========*/
#startQuiz {
    width: 100%;
    padding: 18px;
    font-size: 1rem;
}

/*========== QUIZ CONTAINER ==========*/
.quiz-container {
    display: none;
    max-width: 900px;
    margin: 70px auto;
    padding: 40px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 25px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.quiz-details span {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .08);
    color: var(--accent);
    margin-bottom: 12px;
    font-weight: 600;
}

.quiz-details h2 {
    font-size: 1.5rem;
}

.timer {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border-radius: 999px;
    background: var(--surface);
    font-weight: 600;
}

.timer i {
    color: var(--warning);
}


/*========== PROGRESS ==========*/
.progress {
    width: 100%;
    height: 10px;
    background: rgba(255, 255, 255, .08);
    border-radius: 999px;
    overflow: hidden;
    margin: 30px 0;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: .4s ease;
}

/*========== QUESTION ==========*/
.question-box h2 {
    font-size: 2rem;
    margin-bottom: 35px;
    line-height: 1.5;
}

/*========== OPTIONS ==========*/
.options {
    display: grid;
    gap: 18px;
}

.option-btn {
    width: 100%;
    padding: 18px 22px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    color: var(--text);
    font-size: 1rem;
    text-align: left;
    transition: var(--transition);
    cursor: pointer;
}

.option-btn:hover {
    transform: translateX(8px);
    border-color: var(--primary);
}

.option-btn.correct {
    background: #14532d;
    border-color: #22c55e;
    color: #fff;
}

.option-btn.wrong {
    background: #7f1d1d;
    border-color: #ef4444;
    color: #fff;
}

.option-btn.disabled {
    pointer-events: none;
    opacity: .8;
}

/*========== EXPLANATION ==========*/
.explanation {
    display: none;
    margin-top: 30px;
    padding: 25px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--border);
    border-radius: 18px;
}

.explanation h3 {
    margin-bottom: 12px;
    font-size: 1.3rem;
}

.explanation p {
    color: var(--text-light);
}

/*========== ACTIONS ==========*/
.quiz-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 35px;
    gap: 20px;
}

.quiz-actions .btn {
    min-width: 180px;
}

/*========== RESULT ==========*/
.result-container {
    display: none;
    max-width: 850px;
    margin: 100px auto;
    padding: 0 8%;
}

.result-card {
    padding: 50px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 25px;
    backdrop-filter: blur(20px);
    text-align: center;
    box-shadow: var(--shadow);
}

.result-icon {
    width: 110px;
    height: 110px;
    margin: auto;
    margin-bottom: 25px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    font-size: 2.7rem;
    color: #fff;
}

.result-card h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.result-card p {
    color: var(--text-light);
}

#score {
    font-size: 4.5rem;
    margin: 20px 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

#percentage {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 40px 0;
}

.result-stats div {
    padding: 25px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
}

.result-stats h4 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--primary);
}

.result-stats span {
    color: var(--text-light);
}

.result-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 35px;
    flex-wrap: wrap;
}

/*========== ANIMATION ==========*/
@keyframes pop {
    0% {
        transform: scale(.8);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.result-card {
    animation: pop .5s ease;
}

/*========== RESPONSIVE ==========*/
@media(max-width:992px) {

    .quiz-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 25px;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }

    .difficulty-grid {
        grid-template-columns: 1fr;
    }

    .result-stats {
        grid-template-columns: 1fr;
    }

}

@media(max-width:768px) {

    .quiz-page {
        padding: 0 6%;
    }

    .quiz-container {
        padding: 25px;
    }

    .quiz-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .question-box h2 {
        font-size: 1.5rem;
    }

    .quiz-actions {
        flex-direction: column;
    }

    .quiz-actions .btn {
        width: 100%;
    }

    .result-card {
        padding: 35px 25px;
    }

    #score {
        font-size: 3.5rem;
    }

}

@media(max-width:500px) {

    .quiz-top h1 {
        font-size: 2.2rem;
    }

    .option-btn {
        padding: 16px;
        font-size: .95rem;
    }

    .timer {
        padding: 10px 16px;
    }

    .result-icon {
        width: 90px;
        height: 90px;
        font-size: 2rem;
    }

}

.light-theme {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-2: #f1f5f9;
    --text: #0f172a;
    --text-light: #475569;
    --glass: rgba(255, 255, 255, .75);
    --border: rgba(15, 23, 42, .08);
}

.light-theme body {
    background: var(--bg);
    color: var(--text);
}

.light-theme .quiz-start-card,
.light-theme .quiz-container,
.light-theme .result-card {
    background: rgba(255, 255, 255, .75);
}

.light-theme .option-btn {
    background: #fff;
}

.light-theme .progress {
    background: #dbe4ef;
}

.light-theme .timer {
    background: #eef2f7;
}

.light-theme .back-home {
    background: #fff;
}