/**
 * Enhanced Quiz System Styles v1.0
 * Стили для улучшенной системы квизов с popup
 */

/* Popup Overlay */
.quiz-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.quiz-popup-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Popup Content */
.quiz-popup-content {
    background: linear-gradient(135deg, rgba(10, 14, 26, 0.98), rgba(15, 23, 42, 0.98));
    border: 2px solid rgba(6, 182, 212, 0.3);
    border-radius: 24px;
    padding: 48px 40px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                0 0 100px rgba(6, 182, 212, 0.2);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.quiz-popup-overlay.show .quiz-popup-content {
    transform: scale(1);
}

/* Animated Background */
.quiz-popup-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    animation: popup-glow 3s ease-in-out infinite;
    z-index: 0;
}

@keyframes popup-glow {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(10%, 10%) scale(1.1);
        opacity: 0.8;
    }
}

/* Score Display */
.quiz-popup-score {
    font-size: 72px;
    font-weight: 900;
    background: linear-gradient(135deg, #06b6d4, #0ea5e9, #38bdf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    line-height: 1;
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
    animation: score-pulse 0.5s ease-out;
}

@keyframes score-pulse {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Message */
.quiz-popup-message {
    font-size: 20px;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 32px;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

/* Buttons Container */
.quiz-popup-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    z-index: 1;
}

/* Retry Button */
.quiz-popup-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    background: linear-gradient(135deg, #06b6d4, #0ea5e9);
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.3);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.quiz-popup-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.quiz-popup-btn:hover::before {
    left: 100%;
}

.quiz-popup-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(6, 182, 212, 0.4);
}

.quiz-popup-btn:active {
    transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .quiz-popup-content {
        padding: 40px 32px;
        max-width: 90%;
    }

    .quiz-popup-score {
        font-size: 64px;
    }

    .quiz-popup-message {
        font-size: 18px;
        margin-bottom: 28px;
    }

    .quiz-popup-btn {
        padding: 14px 32px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .quiz-popup-content {
        padding: 32px 24px;
        border-radius: 20px;
    }

    .quiz-popup-score {
        font-size: 56px;
        margin-bottom: 16px;
    }

    .quiz-popup-message {
        font-size: 16px;
        margin-bottom: 24px;
    }

    .quiz-popup-btn {
        width: 100%;
        padding: 14px 24px;
        font-size: 14px;
    }
}

@media (max-width: 360px) {
    .quiz-popup-content {
        padding: 28px 20px;
    }

    .quiz-popup-score {
        font-size: 48px;
    }

    .quiz-popup-message {
        font-size: 15px;
    }
}

/* Quiz Progress Indicator (опционально - для отображения прогресса в самом квизе) */
.quiz-progress-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    color: #06b6d4;
    margin-bottom: 16px;
}

.quiz-progress-indicator .current {
    color: #ffffff;
}

.quiz-progress-indicator .separator {
    color: rgba(6, 182, 212, 0.5);
}

/* Улучшенные стили для quiz-option (совместимость с существующими) */
.quiz-option {
    position: relative;
    overflow: hidden;
}

.quiz-option::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(6, 182, 212, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.quiz-option:active::after {
    width: 300px;
    height: 300px;
}

.quiz-option.correct {
    animation: correct-pulse 0.5s ease-out;
}

.quiz-option.incorrect {
    animation: incorrect-shake 0.5s ease-out;
}

@keyframes correct-pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes incorrect-shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-8px);
    }
    75% {
        transform: translateX(8px);
    }
}