/* ========================================
   مراجعة الأخطاء — Review Mode
   قياس أونلاين
   Dark Glassmorphism · RTL Arabic
   ======================================== */

/* ========== Page Layout ========== */
.review-page {
    padding-top: 90px;
    min-height: 100vh;
}

.review-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* ========== Stats Banner ========== */
.review-stats-banner {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    padding: 32px;
    margin-bottom: 28px;
    animation: fadeInUp 0.6s ease;
    position: relative;
    overflow: hidden;
}

.review-stats-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1.5px;
    background: var(--gradient-card-border);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.review-stats-banner:hover::before {
    opacity: 1;
}

.review-stats-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.review-stats-title .count-highlight {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.review-stats-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

/* Progress Bar */
.review-progress-wrapper {
    margin-bottom: 16px;
}

.review-progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.review-progress-label span:first-child {
    color: var(--text-secondary);
}

.review-progress-label strong {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.review-progress-bar {
    height: 10px;
    background: var(--bg-tertiary);
    border-radius: 5px;
    overflow: hidden;
    position: relative;
}

.review-progress-fill {
    height: 100%;
    border-radius: 5px;
    background: var(--gradient-accent);
    transition: width 0.8s ease;
    position: relative;
}

.review-progress-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 2s ease infinite;
    background-size: 200% 100%;
}

/* Stats Grid */
.review-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.review-stat-card {
    text-align: center;
    padding: 20px 12px;
    background: var(--bg-glass-light);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.review-stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

.review-stat-icon {
    font-size: 1.6rem;
    margin-bottom: 8px;
}

.review-stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1.2;
}

.review-stat-value.new-color {
    color: var(--info);
}

.review-stat-value.reviewing-color {
    color: var(--warning);
}

.review-stat-value.mastered-color {
    color: var(--success);
}

.review-stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ========== Filters & Controls ========== */
.review-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.review-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.review-filter-btn {
    padding: 8px 18px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-glass-light);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-family: inherit;
}

.review-filter-btn:hover {
    border-color: var(--green-400);
    color: var(--green-400);
}

.review-filter-btn.active {
    background: var(--gradient-accent);
    border-color: transparent;
    color: white;
}

.review-sort-select {
    padding: 8px 16px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-glass-light);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-appearance: none;
    appearance: none;
    padding-left: 32px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 10px center;
}

.review-sort-select:hover,
.review-sort-select:focus {
    border-color: var(--green-400);
    outline: none;
}

.review-sort-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* ========== Action Buttons Row ========== */
.review-actions-row {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.15s both;
}

.review-actions-row .btn {
    flex: 1;
    min-width: 150px;
}

/* ========== Question List ========== */
.review-question-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.review-question-item {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    padding: 20px 24px;
    transition: all 0.3s ease;
    cursor: default;
}

.review-question-item:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-sm);
}

.review-question-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    gap: 8px;
    flex-wrap: wrap;
}

.review-question-item-badges {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.review-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
}

.review-badge.exam-step {
    background: rgba(139, 92, 246, 0.1);
    color: #A78BFA;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.review-badge.exam-qudurat {
    background: rgba(59, 130, 246, 0.1);
    color: var(--blue-400);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.review-badge.exam-tahsili {
    background: rgba(99, 102, 241, 0.1);
    color: var(--green-400);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.review-badge.state-new {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.review-badge.state-reviewing {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.review-badge.state-mastered {
    background: rgba(99, 102, 241, 0.1);
    color: var(--success);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.review-badge.times-wrong {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.review-badge.priority-high {
    background: rgba(239, 68, 68, 0.15);
    color: #F87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.review-question-item-text {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.7;
    color: var(--text-primary);
}

.review-question-item-text.ltr-text {
    direction: ltr;
    text-align: left;
}

.review-question-section {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ========== Practice Mode (Quiz) ========== */
.review-practice-container {
    animation: fadeInUp 0.5s ease;
}

.review-practice-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 12px;
}

.review-practice-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.review-practice-progress strong {
    color: var(--text-primary);
}

.review-practice-progress .progress-bar {
    min-width: 100px;
}

.review-practice-exit {
    padding: 8px 16px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-glass-light);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 6px;
}

.review-practice-exit:hover {
    border-color: var(--danger);
    color: var(--danger);
}

/* Question Card */
.review-question-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    padding: 36px;
    margin-bottom: 24px;
    animation: fadeInUp 0.35s ease;
    position: relative;
}

.review-question-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.review-question-number {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

.review-question-text {
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.8;
    margin-bottom: 28px;
    color: var(--text-primary);
}

.review-question-text.ltr-text {
    direction: ltr;
    text-align: left;
}

/* Options */
.review-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.review-option {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    border-radius: 14px;
    border: 2px solid var(--border-color);
    background: var(--bg-glass-light);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.review-option:hover:not(.disabled) {
    border-color: var(--green-400);
    background: rgba(99, 102, 241, 0.05);
    transform: translateX(-4px);
}

.review-option.disabled {
    cursor: default;
}

.review-option.correct {
    border-color: var(--success) !important;
    background: rgba(99, 102, 241, 0.15) !important;
    animation: correctPulse 0.6s ease;
}

.review-option.wrong {
    border-color: var(--danger) !important;
    background: rgba(239, 68, 68, 0.1) !important;
    animation: shake 0.5s ease;
}

.review-option.correct-highlight {
    border-color: var(--success) !important;
    background: rgba(99, 102, 241, 0.08) !important;
}

.review-option-letter {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.review-option.correct .review-option-letter {
    background: var(--success);
    color: white;
}

.review-option.wrong .review-option-letter {
    background: var(--danger);
    color: white;
}

.review-option.correct-highlight .review-option-letter {
    background: var(--success);
    color: white;
}

.review-option-text {
    flex: 1;
    line-height: 1.6;
}

.review-option-text.ltr-text {
    direction: ltr;
    text-align: left;
}

@keyframes correctPulse {
    0% { transform: scale(1); }
    30% { transform: scale(1.02); }
    60% { transform: scale(0.99); }
    100% { transform: scale(1); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(8px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* Explanation */
.review-explanation {
    margin-top: 20px;
    padding: 16px 20px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: 14px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    animation: fadeInUp 0.4s ease;
}

.review-explanation-title {
    font-weight: 700;
    color: var(--blue-400);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Result feedback per question */
.review-result-inline {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px 16px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    animation: fadeInUp 0.3s ease;
}

.review-result-inline.correct {
    background: rgba(99, 102, 241, 0.1);
    color: var(--success);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.review-result-inline.wrong {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.15);
}

/* Next button */
.review-next-btn {
    margin-top: 20px;
    padding: 12px 28px;
    border-radius: 12px;
    border: none;
    background: var(--gradient-accent);
    color: white;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.review-next-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

/* ========== Empty State ========== */
.review-empty-state {
    text-align: center;
    padding: 80px 24px;
    animation: fadeInUp 0.6s ease;
}

.review-empty-emoji {
    font-size: 4.5rem;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

.review-empty-state h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.review-empty-state p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 28px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.review-empty-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== Celebration Overlay ========== */
.celebration-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: fadeIn 0.4s ease;
}

.celebration-card {
    text-align: center;
    padding: 48px 40px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: 28px;
    border: 1px solid var(--border-color);
    max-width: 420px;
    width: 90%;
    animation: scaleIn 0.5s ease;
    position: relative;
    overflow: hidden;
}

.celebration-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 28px;
    padding: 2px;
    background: linear-gradient(135deg, #6366F1, #F59E0B, #EF4444, #818CF8);
    background-size: 300% 300%;
    animation: gradientShift 3s ease infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

.celebration-emoji {
    font-size: 5rem;
    margin-bottom: 16px;
    animation: float 2s ease-in-out infinite;
}

.celebration-title {
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #6366F1, #F59E0B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.celebration-text {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

/* ========== Confetti ========== */
.review-confetti-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 10001;
    overflow: hidden;
}

.review-confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    animation: confettiFall 3s ease-out forwards;
}

/* ========== Demo Button ========== */
.demo-btn-wrapper {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 990;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.demo-btn-wrapper.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
}

.demo-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 14px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.demo-btn:hover {
    background: rgba(245, 158, 11, 0.25);
    border-color: var(--warning);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.2);
}

/* ========== Practice Summary ========== */
.review-summary {
    text-align: center;
    padding: 40px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.6s ease;
    margin-bottom: 28px;
}

.review-summary-emoji {
    font-size: 3.5rem;
    margin-bottom: 16px;
}

.review-summary h2 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.review-summary p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 4px;
}

.review-summary-stats {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin: 20px 0;
    flex-wrap: wrap;
}

.review-summary-stat {
    padding: 6px 14px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
}

.review-summary-stat.correct-stat {
    background: rgba(99, 102, 241, 0.1);
    color: var(--success);
}

.review-summary-stat.wrong-stat {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* ========== Clear Data Button ========== */
.clear-data-btn {
    padding: 8px 16px;
    border-radius: 10px;
    border: 1px solid rgba(239, 68, 68, 0.3);
    background: transparent;
    color: var(--danger);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.clear-data-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .review-container {
        padding: 16px;
    }

    .review-stats-banner {
        padding: 24px 20px;
    }

    .review-stats-title {
        font-size: 1.3rem;
    }

    .review-stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .review-stat-value {
        font-size: 1.4rem;
    }

    .review-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .review-filters {
        overflow-x: auto;
        flex-wrap: nowrap;
        -ms-overflow-style: none;
        scrollbar-width: none;
        padding-bottom: 4px;
    }

    .review-filters::-webkit-scrollbar {
        display: none;
    }

    .review-filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
    }

    .review-question-card {
        padding: 24px 20px;
    }

    .review-question-text {
        font-size: 1.05rem;
    }

    .review-option {
        padding: 12px 14px;
    }

    .review-practice-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .review-practice-exit {
        justify-content: center;
    }

    .review-actions-row {
        flex-direction: column;
    }

    .review-actions-row .btn {
        min-width: unset;
    }
}

@media (max-width: 480px) {
    .review-stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }

    .review-stat-card {
        padding: 14px 8px;
    }

    .review-stat-value {
        font-size: 1.2rem;
    }

    .review-stat-label {
        font-size: 0.7rem;
    }

    .review-question-item {
        padding: 16px;
    }

    .review-empty-state {
        padding: 48px 16px;
    }

    .celebration-card {
        padding: 36px 24px;
    }

    .demo-btn-wrapper {
        bottom: 16px;
        left: 16px;
    }

    .demo-btn {
        padding: 10px 16px;
        font-size: 0.82rem;
    }
}