/* Explore Quiz Styles */

/* Explore Header */
.explore-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.explore-search-bar {
    flex: 1;
    min-width: 300px;
    display: flex;
    gap: 10px;
}

.explore-search-input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    transition: var(--transition);
    background: white;
    color: var(--text-primary);
}

.explore-search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.btn-search, .btn-refresh {
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-search {
    background: var(--bg-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-search:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-refresh {
    background: linear-gradient(135deg, #48bb78, #38a169, #2f855a, #38a169, #48bb78);
    background-size: 400% 400%;
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(72, 187, 120, 0.4);
    position: relative;
    overflow: hidden;
    animation: gradientShift 4s ease infinite, colorPulse 3s ease-in-out infinite;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.btn-refresh::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    animation: shimmer 3s ease-in-out infinite;
    z-index: 1;
}

.btn-refresh::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    opacity: 0;
    animation: glow 2s ease-in-out infinite;
    z-index: 0;
}

.btn-refresh:hover {
    transform: translateY(-3px) rotateX(5deg);
    box-shadow: 0 8px 25px rgba(72, 187, 120, 0.7), 0 0 40px rgba(72, 187, 120, 0.3);
    animation: gradientShift 1.5s ease infinite, colorPulse 1.5s ease-in-out infinite, wave 2s ease-in-out infinite;
}

.btn-refresh:hover::before {
    animation: shimmer 1.5s ease-in-out infinite;
}

.btn-refresh:hover::after {
    opacity: 1;
    animation: glow 1s ease-in-out infinite, rotate 3s linear infinite;
}

.btn-refresh:active {
    transform: translateY(0) scale(0.98);
}

.btn-refresh.refreshing {
    pointer-events: none;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb, #4facfe, #00f2fe, #667eea);
    background-size: 400% 400%;
    animation: gradientShift 1.2s ease infinite, rainbowPulse 1s ease-in-out infinite, rotate3D 2s ease-in-out infinite;
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.8), 0 0 50px rgba(118, 75, 162, 0.5);
}

.btn-refresh.refreshing::before {
    animation: shimmer 0.8s ease-in-out infinite;
}

.btn-refresh.refreshing::after {
    opacity: 1;
    animation: glow 0.6s ease-in-out infinite, rotate 1.5s linear infinite;
}

.btn-refresh.refreshing i {
    animation: spin 1s linear infinite, iconPulse 0.5s ease-in-out infinite;
}

.btn-refresh i {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.btn-refresh span {
    position: relative;
    z-index: 2;
}

/* Animations */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    25% {
        background-position: 50% 100%;
    }
    50% {
        background-position: 100% 50%;
    }
    75% {
        background-position: 50% 0%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes colorPulse {
    0%, 100% {
        filter: brightness(1) saturate(1);
    }
    25% {
        filter: brightness(1.1) saturate(1.2);
    }
    50% {
        filter: brightness(1.2) saturate(1.3);
    }
    75% {
        filter: brightness(1.1) saturate(1.2);
    }
}

@keyframes shimmer {
    0% {
        left: -100%;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        left: 100%;
        opacity: 0;
    }
}

@keyframes glow {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.2);
    }
}

@keyframes wave {
    0%, 100% {
        border-radius: 12px;
    }
    25% {
        border-radius: 15px 10px 15px 10px;
    }
    50% {
        border-radius: 10px 15px 10px 15px;
    }
    75% {
        border-radius: 15px 10px 15px 10px;
    }
}

@keyframes rainbowPulse {
    0%, 100% {
        box-shadow: 0 8px 30px rgba(102, 126, 234, 0.8), 0 0 50px rgba(118, 75, 162, 0.5);
    }
    25% {
        box-shadow: 0 8px 30px rgba(240, 147, 251, 0.8), 0 0 50px rgba(79, 172, 254, 0.5);
    }
    50% {
        box-shadow: 0 8px 30px rgba(79, 172, 254, 0.8), 0 0 50px rgba(0, 242, 254, 0.5);
    }
    75% {
        box-shadow: 0 8px 30px rgba(0, 242, 254, 0.8), 0 0 50px rgba(102, 126, 234, 0.5);
    }
}

@keyframes rotate3D {
    0%, 100% {
        transform: rotateY(0deg) rotateX(0deg);
    }
    25% {
        transform: rotateY(5deg) rotateX(2deg);
    }
    50% {
        transform: rotateY(0deg) rotateX(5deg);
    }
    75% {
        transform: rotateY(-5deg) rotateX(2deg);
    }
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(72, 187, 120, 0.4);
    }
    50% {
        box-shadow: 0 6px 25px rgba(72, 187, 120, 0.8), 0 0 30px rgba(72, 187, 120, 0.4);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* User Name Section */
.user-name-section {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 20px 25px;
    margin-bottom: 30px;
}

.user-name-section label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.user-name-section input {
    width: 100%;
    max-width: 400px;
    padding: 12px 18px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    transition: var(--transition);
}

.user-name-section input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.user-name-section small {
    display: block;
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 13px;
}

/* Shared Quizzes Grid */
.shared-quizzes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

/* Shared Quiz Card */
.shared-quiz-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    position: relative;
}

.shared-quiz-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--bg-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.shared-quiz-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
    border-color: var(--primary-color);
}

.shared-quiz-card:hover::before {
    transform: scaleX(1);
}

/* Quiz Card Header */
.shared-quiz-header {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.shared-quiz-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.shared-quiz-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--success-color);
    color: white;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 3px 10px rgba(72, 187, 120, 0.3);
}

/* Quiz Card Content */
.shared-quiz-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.shared-quiz-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.shared-quiz-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Quiz Meta */
.shared-quiz-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 15px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 12px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.meta-item i {
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

/* Quiz Stats */
.shared-quiz-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.shared-quiz-stats .stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px;
    background: rgba(102, 126, 234, 0.08);
    border-radius: 10px;
    text-align: center;
}

.shared-quiz-stats .stat-item i {
    font-size: 20px;
    color: var(--primary-color);
}

.shared-quiz-stats .stat-item span {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Quiz Actions */
.shared-quiz-actions {
    padding: 20px;
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: 10px;
}

.btn-start-shared-quiz {
    flex: 1;
    padding: 14px 20px;
    background: var(--bg-gradient);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-start-shared-quiz:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-view-details {
    padding: 14px 18px;
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-view-details:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Share Button in Manage Tab */
.btn-share-quiz {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
    box-shadow: 0 4px 15px rgba(72, 187, 120, 0.3);
}

.btn-share-quiz:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(72, 187, 120, 0.5);
}

/* Loading State */
.explore-loading {
    display: none;
    justify-content: center;
    align-items: center;
    padding: 80px 30px;
    flex-direction: column;
    gap: 20px;
}

.explore-loading-spinner {
    width: 60px;
    height: 60px;
    border: 6px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

.explore-loading-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Empty State */
.empty-state-card, .error-state-card {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 30px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border: 2px dashed var(--border-color);
    border-radius: 20px;
}

.empty-state-card i, .error-state-card i {
    font-size: 64px;
    color: var(--border-color);
    margin-bottom: 20px;
}

.error-state-card i {
    color: var(--warning-color);
}

.empty-state-card h3, .error-state-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.empty-state-card p, .error-state-card p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Quiz Details Modal */
#quiz-details-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
}

#quiz-details-modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.quiz-details-modal-content {
    background: var(--card-bg);
    border-radius: 20px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.quiz-details-content {
    padding: 40px;
}

.quiz-details-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
}

.quiz-details-title-section {
    flex: 1;
}

.quiz-details-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.quiz-details-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.btn-close-modal {
    background: rgba(245, 101, 101, 0.1);
    border: 2px solid rgba(245, 101, 101, 0.3);
    color: var(--danger-color);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.btn-close-modal:hover {
    background: var(--danger-color);
    color: white;
    transform: rotate(90deg);
}

.quiz-details-info {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 30px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-label i {
    color: var(--primary-color);
}

.info-value {
    font-weight: 600;
    color: var(--text-primary);
}

.quiz-preview-questions {
    margin-bottom: 30px;
}

/* Quiz Preview Section */
.quiz-preview-section {
    margin-bottom: 30px;
}

.quiz-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-radius: 12px;
}

.quiz-preview-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.preview-badge {
    background: var(--bg-gradient);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
}

.quiz-preview-questions {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.preview-question-item {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 25px;
    transition: var(--transition);
}

.preview-question-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
    transform: translateY(-3px);
}

.preview-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.preview-question-number {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-gradient);
    color: white;
    padding: 10px 18px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 15px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.preview-question-number i {
    font-size: 16px;
}

.preview-has-image {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.1), rgba(56, 161, 105, 0.1));
    border: 2px solid rgba(72, 187, 120, 0.3);
    border-radius: 10px;
    font-size: 13px;
    color: var(--success-color);
    font-weight: 600;
}

.preview-question-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 15px;
}

.preview-question-image {
    margin: 15px 0;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.preview-question-image img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    display: block;
}

.preview-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.preview-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border: 2px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
}

.preview-option:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.preview-option-label {
    background: var(--bg-gradient);
    color: white;
    min-width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
    flex-shrink: 0;
}

.preview-option-text {
    flex: 1;
    font-size: 15px;
    color: var(--text-primary);
    line-height: 1.6;
}

.more-questions-notice {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(66, 153, 225, 0.1), rgba(49, 130, 206, 0.1));
    border: 2px solid rgba(66, 153, 225, 0.3);
    border-radius: 12px;
    margin-top: 20px;
    text-align: center;
    justify-content: center;
}

.more-questions-notice i {
    font-size: 24px;
    color: var(--info-color);
}

.more-questions-notice span {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.more-questions-notice strong {
    color: var(--text-primary);
    font-weight: 700;
}

.quiz-details-actions {
    display: flex;
    gap: 15px;
    padding-top: 25px;
    border-top: 3px solid var(--border-color);
}

.btn-start-quiz-primary {
    flex: 2;
    padding: 18px 30px;
    background: var(--bg-gradient);
    color: white;
    border: none;
    border-radius: 14px;
    font-weight: 700;
    font-size: 17px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-start-quiz-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.6);
}

.btn-start-quiz-primary i {
    font-size: 22px;
}

.btn-close-quiz {
    flex: 1;
    padding: 18px 24px;
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-close-quiz:hover {
    background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
    color: var(--danger-color);
    border-color: var(--danger-color);
}

/* Highlight Stats Animation */
.highlight-stat {
    position: relative;
    font-weight: 700;
    color: var(--success-color);
}

.stat-highlight-animation {
    animation: highlightPulse 1.5s ease-in-out;
}

@keyframes highlightPulse {
    0%, 100% {
        transform: scale(1);
        color: var(--success-color);
    }
    50% {
        transform: scale(1.15);
        color: #48bb78;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .explore-header {
        flex-direction: column;
        align-items: stretch;
    }

    .explore-search-bar {
        min-width: auto;
        flex-direction: column;
    }

    .shared-quizzes-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

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

    .quiz-details-content {
        padding: 25px;
    }

    .quiz-details-header h2 {
        font-size: 22px;
    }

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

    .info-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .shared-quiz-card {
        border-radius: 16px;
    }

    .shared-quiz-content {
        padding: 20px;
    }

    .shared-quiz-title {
        font-size: 18px;
    }

    .quiz-details-modal-content {
        width: 95%;
        margin: 10px;
    }
}

/* Share Quiz Modal Styles */
.share-info-banner {
    display: flex;
    gap: 15px;
    padding: 15px 20px;
    background: linear-gradient(135deg, rgba(66, 153, 225, 0.1), rgba(49, 130, 206, 0.1));
    border-left: 4px solid var(--info-color);
    border-radius: 12px;
    margin-bottom: 20px;
}

.share-info-banner i {
    font-size: 24px;
    color: var(--info-color);
    margin-top: 2px;
    flex-shrink: 0;
}

.share-info-banner strong {
    display: block;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.share-info-banner div {
    flex: 1;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.share-quiz-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.share-quiz-info .info-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    background: var(--card-bg);
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

.share-quiz-info .info-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.share-quiz-info .info-item i {
    font-size: 24px;
    color: var(--primary-color);
}

.share-quiz-info .info-item span {
    font-size: 13px;
    color: var(--text-secondary);
}

.share-quiz-info .info-item strong {
    color: var(--text-primary);
    font-size: 15px;
}

#share-quiz-modal .form-group {
    margin-bottom: 20px;
}

#share-quiz-modal label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 15px;
}

#share-quiz-modal label i {
    color: var(--primary-color);
    margin-right: 5px;
}

#share-quiz-modal label span[style*="color: red"] {
    color: var(--danger-color);
    font-weight: 700;
}

#share-quiz-modal small {
    font-size: 13px;
    color: var(--text-secondary);
    font-style: italic;
}

/* Responsive for Share Modal */
@media (max-width: 768px) {
    .share-quiz-info {
        grid-template-columns: 1fr;
    }
}

/* Server Status Indicator */
.server-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    transition: var(--transition);
}

.server-status.online {
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.1), rgba(56, 161, 105, 0.1));
    border: 2px solid rgba(72, 187, 120, 0.3);
    color: var(--success-color);
}

.server-status.offline {
    background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
    border: 2px solid rgba(245, 101, 101, 0.3);
    color: var(--danger-color);
}

.server-status i {
    font-size: 12px;
    animation: pulse 2s ease-in-out infinite;
}

.btn-retry-server {
    margin-left: auto;
    padding: 6px 14px;
    background: white;
    border: 2px solid currentColor;
    border-radius: 8px;
    color: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-retry-server:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Realtime Update Animations */
.quiz-new-highlight {
    animation: highlightNew 3s ease;
}

@keyframes highlightNew {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(72, 187, 120, 0.7);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 0 0 20px rgba(72, 187, 120, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(72, 187, 120, 0);
    }
}

.stat-updated {
    animation: statPulse 1s ease;
    color: var(--success-color) !important;
    font-weight: 700 !important;
}

@keyframes statPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

/* Realtime Badge */
.realtime-badge {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
    padding: 12px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 8px 25px rgba(72, 187, 120, 0.4);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 999;
    animation: slideInRight 0.5s ease;
    cursor: pointer;
    transition: var(--transition);
}

.realtime-badge:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(72, 187, 120, 0.6);
}

.realtime-badge i {
    font-size: 16px;
    animation: pulse 2s ease-in-out infinite;
}

.realtime-badge.polling {
    background: linear-gradient(135deg, #667eea, #764ba2);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.realtime-badge.polling:hover {
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.6);
}

@keyframes slideInRight {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Realtime Notification Toast */
.realtime-toast {
    position: fixed;
    top: 80px;
    right: 30px;
    background: white;
    border: 2px solid var(--success-color);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    min-width: 350px;
    animation: slideInRight 0.5s ease;
}

.realtime-toast.hide {
    animation: slideOutRight 0.5s ease forwards;
}

@keyframes slideOutRight {
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

.realtime-toast-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.realtime-toast-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #48bb78, #38a169);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.realtime-toast-title {
    flex: 1;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.realtime-toast-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 18px;
    padding: 5px;
    transition: var(--transition);
}

.realtime-toast-close:hover {
    color: var(--text-primary);
    transform: rotate(90deg);
}

.realtime-toast-body {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.realtime-toast-body strong {
    color: var(--text-primary);
}

/* Server Instructions Modal */
.server-instructions-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.server-instructions-content {
    background: var(--card-bg);
    border-radius: 20px;
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.server-instructions-header {
    background: var(--bg-gradient);
    color: white;
    padding: 25px 30px;
    border-radius: 20px 20px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.server-instructions-header h3 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.server-instructions-header .btn-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.server-instructions-header .btn-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.server-instructions-body {
    padding: 30px;
}

.server-instructions-body > p {
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 25px;
    line-height: 1.6;
}

.instruction-step {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 16px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.instruction-step:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.step-number {
    background: var(--bg-gradient);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.step-content {
    flex: 1;
}

.step-content h4 {
    margin: 0 0 10px 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.step-content p {
    margin: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-content code {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 0, 0, 0.05);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 600;
    margin: 5px 0;
}

.instruction-note {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(66, 153, 225, 0.1), rgba(49, 130, 206, 0.1));
    border-left: 4px solid var(--info-color);
    border-radius: 12px;
    margin: 25px 0;
}

.instruction-note i {
    font-size: 24px;
    color: var(--info-color);
    flex-shrink: 0;
}

.instruction-note p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.instruction-note strong {
    color: var(--text-primary);
}

.instruction-offline {
    padding: 20px;
    background: linear-gradient(135deg, rgba(237, 137, 54, 0.1), rgba(221, 107, 32, 0.1));
    border-left: 4px solid var(--warning-color);
    border-radius: 12px;
    margin-top: 25px;
}

.instruction-offline h4 {
    margin: 0 0 10px 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.instruction-offline p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.server-instructions-footer {
    padding: 25px 30px;
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: 15px;
}

.server-instructions-footer .btn {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.server-instructions-footer .btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.server-instructions-footer .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.server-instructions-footer .btn-secondary {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

.server-instructions-footer .btn-secondary:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Share Error Dialog */
.share-error-dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.share-error-content {
    background: var(--card-bg);
    border-radius: 20px;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.share-error-header {
    background: linear-gradient(135deg, #f56565, #e53e3e);
    color: white;
    padding: 25px 30px;
    border-radius: 20px 20px 0 0;
    display: flex;
    align-items: center;
    gap: 15px;
}

.share-error-header i {
    font-size: 32px;
}

.share-error-header h3 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
}

.share-error-body {
    padding: 30px;
}

.share-error-body p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.6;
}

.share-error-body strong {
    color: var(--text-primary);
    font-size: 16px;
}

.error-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 25px;
}

.error-options .btn {
    width: 100%;
    padding: 16px 24px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.error-options .btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.error-options .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.error-options .btn-secondary {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.error-options .btn-secondary:hover {
    background: var(--bg-gradient);
    color: white;
}

.error-options .btn-danger {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

.error-options .btn-danger:hover {
    background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
    color: var(--danger-color);
    border-color: var(--danger-color);
}

/* Offline Empty State */
.offline-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 30px;
    background: linear-gradient(135deg, rgba(237, 137, 54, 0.05), rgba(221, 107, 32, 0.05));
    border: 2px dashed rgba(237, 137, 54, 0.3);
    border-radius: 20px;
}

.offline-empty-state i {
    font-size: 64px;
    color: var(--warning-color);
    margin-bottom: 20px;
}

.offline-empty-state h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.offline-empty-state p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.6;
}

.offline-empty-state .btn {
    margin: 10px 5px;
    padding: 14px 24px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.offline-empty-state .btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.offline-empty-state .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.offline-empty-state .btn-secondary {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

.offline-empty-state .btn-secondary:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Server URL Configuration Dialog */
.server-url-dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.server-url-content {
    background: var(--card-bg);
    border-radius: 20px;
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.server-url-header {
    background: var(--bg-gradient);
    color: white;
    padding: 25px 30px;
    border-radius: 20px 20px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.server-url-header h3 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.server-url-header .btn-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.server-url-header .btn-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.server-url-body {
    padding: 30px;
}

.server-url-body > p {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.server-url-input {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
    transition: var(--transition);
    margin-bottom: 25px;
}

.server-url-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    background: white;
}

.server-url-help {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 20px;
}

.server-url-help h4 {
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.server-url-help h4 i {
    color: var(--info-color);
}

.server-url-help ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.server-url-help li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.server-url-help li:last-child {
    border-bottom: none;
}

.server-url-help li strong {
    color: var(--text-primary);
    font-weight: 700;
}

.server-url-help li code {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 600;
    margin: 0 4px;
}

.server-url-note {
    display: flex;
    gap: 12px;
    padding: 15px;
    background: linear-gradient(135deg, rgba(66, 153, 225, 0.1), rgba(49, 130, 206, 0.1));
    border-left: 4px solid var(--info-color);
    border-radius: 10px;
    margin-top: 15px;
}

.server-url-note i {
    font-size: 20px;
    color: var(--info-color);
    flex-shrink: 0;
    margin-top: 2px;
}

.server-url-note p {
    margin: 0;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

#server-test-result {
    margin-top: 20px;
    min-height: 50px;
}

.test-loading,
.test-success,
.test-error {
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    animation: slideUp 0.3s ease;
}

.test-loading {
    background: linear-gradient(135deg, rgba(66, 153, 225, 0.1), rgba(49, 130, 206, 0.1));
    border: 2px solid rgba(66, 153, 225, 0.3);
    color: var(--info-color);
}

.test-loading i {
    font-size: 24px;
    animation: spin 1s linear infinite;
}

.test-success {
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.1), rgba(56, 161, 105, 0.1));
    border: 2px solid rgba(72, 187, 120, 0.3);
    color: var(--success-color);
}

.test-success i {
    font-size: 28px;
    flex-shrink: 0;
}

.test-error {
    background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
    border: 2px solid rgba(245, 101, 101, 0.3);
    color: var(--danger-color);
}

.test-error i {
    font-size: 28px;
    flex-shrink: 0;
}

.test-error ul {
    margin: 10px 0 0 0;
    padding-left: 20px;
}

.test-error li {
    margin: 5px 0;
    font-size: 13px;
}

.server-info-details {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(72, 187, 120, 0.3);
}

.server-info-details p {
    margin: 5px 0;
    font-size: 13px;
    font-weight: 600;
}

.server-url-footer {
    padding: 25px 30px;
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: 12px;
}

.server-url-footer .btn {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.server-url-footer .btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.server-url-footer .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.server-url-footer .btn-secondary {
    background: linear-gradient(135deg, rgba(66, 153, 225, 0.1), rgba(49, 130, 206, 0.1));
    color: var(--info-color);
    border: 2px solid var(--info-color);
}

.server-url-footer .btn-secondary:hover {
    background: var(--info-color);
    color: white;
}

.server-url-footer .btn-danger {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

.server-url-footer .btn-danger:hover {
    background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
    color: var(--danger-color);
    border-color: var(--danger-color);
}

/* Responsive for new modals */
@media (max-width: 768px) {
    .server-instructions-content,
    .share-error-content,
    .server-url-content {
        width: 95%;
        max-height: 85vh;
    }

    .server-instructions-header,
    .share-error-header,
    .server-url-header {
        padding: 20px;
    }

    .server-instructions-header h3,
    .share-error-header h3,
    .server-url-header h3 {
        font-size: 18px;
    }

    .server-instructions-body,
    .share-error-body,
    .server-url-body {
        padding: 20px;
    }

    .instruction-step {
        flex-direction: column;
        gap: 15px;
    }

    .server-instructions-footer,
    .server-url-footer {
        flex-direction: column;
        padding: 20px;
    }

    .error-options {
        gap: 10px;
    }

    .offline-empty-state {
        padding: 50px 20px;
    }

    .offline-empty-state i {
        font-size: 48px;
    }

    .offline-empty-state h3 {
        font-size: 20px;
    }

    .offline-empty-state .btn {
        width: 100%;
        margin: 5px 0;
    }

    .server-url-help li {
        font-size: 13px;
    }

    .server-url-help li code {
        font-size: 12px;
    }
}

/* First Time Setup Guide */
.first-time-setup .server-instructions-header {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.setup-option {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 20px;
    transition: var(--transition);
    position: relative;
}

.setup-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.setup-option.recommended {
    border-color: var(--success-color);
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.05), rgba(56, 161, 105, 0.05));
}

.option-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--success-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(72, 187, 120, 0.4);
}

.setup-option h4 {
    margin: 0 0 12px 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.setup-option h4 i {
    color: var(--primary-color);
    font-size: 24px;
}

.setup-option.recommended h4 i {
    color: var(--success-color);
}

.setup-option p {
    margin: 0 0 15px 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.setup-option ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.setup-option li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.setup-option li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    flex-shrink: 0;
}

.setup-option.recommended li::before {
    background: var(--success-color);
}

.setup-option .btn {
    width: 100%;
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.setup-option .btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.setup-option .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.setup-option .btn-secondary {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.setup-option .btn-secondary:hover {
    background: var(--bg-gradient);
    color: white;
}

.first-time-setup .server-instructions-footer .btn-success {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
    box-shadow: 0 4px 15px rgba(72, 187, 120, 0.3);
}

.first-time-setup .server-instructions-footer .btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(72, 187, 120, 0.5);
}

/* Firebase Setup Guide */
.firebase-guide .server-instructions-header {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.firebase-guide .instruction-step {
    border-left-color: #f59e0b;
}

.firebase-guide .step-number {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.firebase-guide .instruction-note {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(217, 119, 6, 0.1));
    border-left-color: #f59e0b;
}

.firebase-guide .instruction-note i {
    color: #f59e0b;
}

/* Local Server Setup Guide */
.local-server-guide .server-instructions-header,
.server-host-guide .server-instructions-header,
.server-client-guide .server-instructions-header {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.server-role-selection {
    margin: 20px 0;
}

.server-role-selection h4 {
    margin: 0 0 20px 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
}

.role-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.role-buttons .btn {
    padding: 25px 20px;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    background: var(--card-bg);
    color: var(--text-primary);
}

.role-buttons .btn i {
    font-size: 48px;
    color: var(--primary-color);
}

.role-buttons .btn small {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.4;
}

.role-buttons .btn:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.role-buttons .btn-primary {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-color: var(--primary-color);
}

.role-buttons .btn-primary:hover {
    background: var(--bg-gradient);
    color: white;
}

.role-buttons .btn-primary:hover i {
    color: white;
}

.role-buttons .btn-secondary:hover {
    background: linear-gradient(135deg, rgba(66, 153, 225, 0.1), rgba(49, 130, 206, 0.1));
    border-color: var(--info-color);
}

/* Responsive for new styles */
@media (max-width: 768px) {
    .setup-option {
        padding: 20px;
    }

    .setup-option h4 {
        font-size: 16px;
    }

    .option-badge {
        top: -10px;
        right: 15px;
        font-size: 11px;
        padding: 5px 12px;
    }

    .role-buttons {
        grid-template-columns: 1fr;
    }

    .role-buttons .btn {
        padding: 20px 15px;
    }

    .role-buttons .btn i {
        font-size: 40px;
    }
}

/* Edit/Delete Button */
.btn-edit-quiz {
    padding: 14px 12px;
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-edit-quiz:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Quiz Action Menu */
.quiz-action-menu {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    z-index: 1000;
    animation: slideUp 0.2s ease;
    min-width: 180px;
}

.menu-item {
    width: 100%;
    padding: 14px 20px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
}

.menu-item i {
    font-size: 16px;
    width: 20px;
}

.menu-item:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

.menu-edit:hover {
    color: var(--primary-color);
}

.menu-delete {
    border-top: 1px solid var(--border-color);
}

.menu-delete:hover {
    background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
    color: var(--danger-color);
}

/* Edit Quiz Modal */
.edit-quiz-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.edit-quiz-content {
    background: var(--card-bg);
    border-radius: 20px;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.edit-quiz-header {
    background: var(--bg-gradient);
    color: white;
    padding: 25px 30px;
    border-radius: 20px 20px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.edit-quiz-header h3 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.edit-quiz-header .btn-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.edit-quiz-header .btn-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.edit-quiz-body {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group label i {
    color: var(--primary-color);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--card-bg);
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.quiz-info-summary {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 12px;
    margin-top: 20px;
}

.quiz-info-summary .info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.quiz-info-summary .info-item i {
    color: var(--primary-color);
    font-size: 16px;
}

.edit-quiz-footer {
    padding: 25px 30px;
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: 12px;
}

.edit-quiz-footer .btn {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.edit-quiz-footer .btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.edit-quiz-footer .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.edit-quiz-footer .btn-secondary {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

.edit-quiz-footer .btn-secondary:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Confirm Delete Modal */
.confirm-delete-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.confirm-delete-content {
    background: var(--card-bg);
    border-radius: 20px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.confirm-delete-header {
    background: linear-gradient(135deg, #f56565, #e53e3e);
    color: white;
    padding: 25px 30px;
    border-radius: 20px 20px 0 0;
    display: flex;
    align-items: center;
    gap: 15px;
}

.confirm-delete-header i {
    font-size: 32px;
}

.confirm-delete-header h3 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
}

.confirm-delete-body {
    padding: 30px;
}

.confirm-delete-body > p {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.quiz-delete-info {
    padding: 20px;
    background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
    border: 2px solid rgba(245, 101, 101, 0.3);
    border-radius: 12px;
    margin-bottom: 20px;
}

.quiz-delete-info strong {
    display: block;
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.quiz-delete-info span {
    font-size: 14px;
    color: var(--text-secondary);
}

.warning-text {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: linear-gradient(135deg, rgba(237, 137, 54, 0.1), rgba(221, 107, 32, 0.1));
    border-left: 4px solid var(--warning-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.warning-text i {
    color: var(--warning-color);
    font-size: 18px;
}

.confirm-delete-footer {
    padding: 25px 30px;
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: 12px;
}

.confirm-delete-footer .btn {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.confirm-delete-footer .btn-danger {
    background: linear-gradient(135deg, #f56565, #e53e3e);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 101, 101, 0.3);
}

.confirm-delete-footer .btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 101, 101, 0.5);
}

.confirm-delete-footer .btn-secondary {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

.confirm-delete-footer .btn-secondary:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Responsive for Edit/Delete */
@media (max-width: 768px) {
    .edit-quiz-content,
    .confirm-delete-content {
        width: 95%;
    }

    .edit-quiz-header,
    .confirm-delete-header {
        padding: 20px;
    }

    .edit-quiz-header h3,
    .confirm-delete-header h3 {
        font-size: 18px;
    }

    .edit-quiz-body,
    .confirm-delete-body {
        padding: 20px;
    }

    .edit-quiz-footer,
    .confirm-delete-footer {
        flex-direction: column;
        padding: 20px;
    }

    .quiz-info-summary {
        flex-direction: column;
        gap: 10px;
    }
}