/**
 * Subject Practice Page Styles – Matching MCQs Design Pattern
 */

/* ==================== HERO SECTION ==================== */
.practice-hero {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-12) 0;
    position: relative;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    align-items: center;
    margin-bottom: var(--space-8);
}

/* MCQ Icons Background Pattern */
.practice-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-opacity='0.1' stroke-width='1.5'%3E%3Cpath d='M9 5H7a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2V7a2 2 0 0 0-2-2h-2M9 5a2 2 0 0 0 2 2h2a2 2 0 0 0 2-2M9 5a2 2 0 0 1 2-2h2a2 2 0 0 1 2 2m-6 9h2m-2 4h4'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-position: 0 0, 20px 30px, 40px 60px;
    background-size: 80px 80px, 70px 70px, 60px 60px;
    opacity: 0.3;
    animation: practiceFloat 40s linear infinite;
}

.practice-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes practiceFloat {
    0% { transform: translateY(0) translateX(0); }
    100% { transform: translateY(-50px) translateX(-30px); }
}

.practice-hero .container {
    position: relative;
    z-index: 2;
}

.practice-hero-content {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex-wrap: wrap;
}

.practice-hero-icon {
    width: 90px;
    height: 90px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    color: var(--color-white);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 3px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-smooth);
}

.practice-hero-icon:hover {
    transform: scale(1.05) rotate(5deg);
    border-color: rgba(255, 255, 255, 0.3);
}

.practice-hero-text {
    flex: 1;
}

.practice-hero-text h1 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--space-2);
    color: var(--color-white);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.02em;
}

.practice-hero-text p {
    font-size: var(--font-size-lg);
    opacity: 0.95;
    max-width: 600px;
    margin-bottom: 0;
    line-height: 1.6;
    color: var(--color-white);
}

/* ==================== BREADCRUMB ==================== */
.breadcrumb-wrapper {
    margin-bottom: var(--space-5);
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
}

.breadcrumb-item {
    font-size: var(--font-size-sm);
}

.breadcrumb-item a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-weight: var(--font-weight-medium);
}

.breadcrumb-item a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--color-neutral-muted);
    content: "›";
    font-size: var(--font-size-lg);
    line-height: 1;
}

/* ==================== BACK BUTTON ==================== */
.back-button-wrapper {
    margin-bottom: var(--space-4);
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-white);
    border: 1px solid var(--color-neutral-border);
    border-radius: 8px;
    color: var(--color-neutral-muted);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.back-btn:hover {
    background: var(--color-neutral-bg-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateX(-3px);
}

.back-btn i {
    font-size: var(--font-size-xs);
}

/* ==================== FILTER CARDS ==================== */
.filter-card {
    background: var(--color-white);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-neutral-border-light);
}

.filter-header {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-4) var(--space-5);
}

.filter-header h5 {
    margin: 0;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-header i {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

.filter-body {
    padding: var(--space-5);
}

/* Difficulty Filters */
.difficulty-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
}

.difficulty-filter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-5);
    border-radius: 30px;
    border: 1px solid var(--color-neutral-border);
    background: var(--color-white);
    color: var(--color-neutral-muted);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.difficulty-filter:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.difficulty-filter.active {
    background: var(--color-primary);
    border-color: transparent;
    color: var(--color-white);
    box-shadow: 0 4px 10px rgba(67, 97, 238, 0.2);
}

/* Topic Filters */
.topic-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.topic-filter {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    border-radius: 30px;
    background: var(--color-neutral-bg-light);
    border: 1px solid var(--color-neutral-border);
    color: var(--color-neutral-text);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.topic-filter:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
}

.topic-filter.active {
    background: var(--color-primary);
    border-color: transparent;
    color: var(--color-white);
}

/* ==================== TOPIC CONTENT SECTION ==================== */
.topic-content-card {
    background: var(--color-white);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-neutral-border-light);
}

.topic-content-header {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-5) var(--space-6);
}

.topic-content-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-3);
    color: var(--color-white);
}

.topic-meta {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.topic-meta-badge {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--space-1) var(--space-3);
    border-radius: 30px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.topic-meta-badge i {
    font-size: var(--font-size-xs);
}

.topic-meta-badge.difficulty-beginner {
    background: rgba(40, 167, 69, 0.2);
    color: #d4edda;
}

.topic-meta-badge.difficulty-intermediate {
    background: rgba(255, 193, 7, 0.2);
    color: #fff3cd;
}

.topic-meta-badge.difficulty-advanced {
    background: rgba(220, 53, 69, 0.2);
    color: #f8d7da;
}

.topic-content-body {
    padding: var(--space-6);
}

.topic-description-text {
    font-size: var(--font-size-base);
    color: var(--color-neutral-text);
    line-height: 1.7;
    margin-bottom: var(--space-5);
}

.topic-content-wrapper {
    line-height: 1.8;
    color: var(--color-neutral-muted);
}

.topic-content-wrapper img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--space-4) 0;
}

.topic-content-wrapper h1,
.topic-content-wrapper h2,
.topic-content-wrapper h3 {
    color: var(--color-neutral-text);
    margin: var(--space-5) 0 var(--space-3);
    font-weight: var(--font-weight-semibold);
}

.topic-content-wrapper ul,
.topic-content-wrapper ol {
    padding-left: var(--space-5);
    margin: var(--space-3) 0;
}

.topic-content-wrapper table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-4) 0;
}

.topic-content-wrapper th,
.topic-content-wrapper td {
    border: 1px solid var(--color-neutral-border);
    padding: var(--space-3);
    text-align: left;
}

.topic-content-wrapper th {
    background: var(--color-neutral-bg-light);
    font-weight: var(--font-weight-semibold);
}

.topic-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-neutral-border-light);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.progress-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.progress-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.progress-indicator div strong {
    display: block;
    color: var(--color-neutral-text);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-1);
}

.progress-indicator div span {
    font-size: var(--font-size-xs);
    color: var(--color-neutral-muted);
}

.start-practice-btn {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: var(--space-3) var(--space-6);
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.start-practice-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
}

/* ==================== QUESTIONS SECTION ==================== */
.questions-section {
    display: none;
}

.questions-section.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.questions-header {
    background: var(--color-white);
    border-radius: 10px;
    padding: var(--space-5);
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-neutral-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.questions-header h5 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-neutral-text);
    margin-bottom: var(--space-1);
}

.questions-header small {
    color: var(--color-neutral-muted);
    font-size: var(--font-size-xs);
}

.back-to-content-btn {
    background: transparent;
    border: 1px solid var(--color-neutral-border);
    color: var(--color-neutral-muted);
    padding: var(--space-2) var(--space-4);
    border-radius: 8px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-to-content-btn:hover {
    background: var(--color-neutral-bg-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Question Cards */
.question-card {
    background: var(--color-white);
    border-radius: 10px;
    padding: var(--space-5);
    margin-bottom: var(--space-4);
    border: 1px solid var(--color-neutral-border-light);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-smooth);
}

.question-card:hover {
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-primary);
}

.question-counter {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-base);
    flex-shrink: 0;
}

.question-meta {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.difficulty-badge {
    padding: var(--space-1) var(--space-3);
    border-radius: 30px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

.difficulty-badge.easy {
    background: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.difficulty-badge.medium {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
}

.difficulty-badge.hard {
    background: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}

.topic-badge {
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: var(--space-1) var(--space-3);
    border-radius: 30px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.topic-badge i {
    font-size: var(--font-size-xs);
}

.marks-badge {
    background: var(--color-neutral-bg-light);
    color: var(--color-neutral-muted);
    padding: var(--space-1) var(--space-3);
    border-radius: 30px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.marks-badge i {
    color: var(--color-primary);
}

.result-badge {
    padding: var(--space-1) var(--space-3);
    border-radius: 30px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

.result-badge.correct {
    background: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.result-badge.incorrect {
    background: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}

.question-text {
    font-size: var(--font-size-base);
    color: var(--color-neutral-text);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.question-text img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--space-3) 0;
}

/* Options Toggle Button */
.options-toggle-btn {
    background: var(--color-neutral-bg-light);
    border: 1px solid var(--color-neutral-border);
    border-radius: 8px;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.options-toggle-btn:hover {
    background: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

.options-toggle-btn i {
    transition: transform var(--transition-fast);
}

/* Options Container */
.options-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
    margin-bottom: var(--space-3);
}

.options-container.expanded {
    max-height: 500px;
}

.option-item {
    margin-bottom: var(--space-2);
    position: relative;
}

.option-input {
    display: none;
}

.option-label {
    display: block;
    background: var(--color-white);
    border: 2px solid var(--color-neutral-border);
    border-radius: 8px;
    padding: var(--space-3) var(--space-3) var(--space-3) 45px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: var(--font-weight-normal);
    position: relative;
    font-size: var(--font-size-sm);
}

.option-label:hover {
    border-color: var(--color-primary);
    background: var(--color-neutral-bg-light);
}

.option-input:checked + .option-label {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.option-marker {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-neutral-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
    background: var(--color-white);
    transition: all var(--transition-fast);
    font-size: var(--font-size-xs);
    color: var(--color-neutral-muted);
}

.option-input:checked + .option-label .option-marker {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
    flex-wrap: wrap;
}

.check-btn, .reset-btn {
    padding: var(--space-2) var(--space-4);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.check-btn {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 10px rgba(67, 97, 238, 0.2);
}

.check-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(67, 97, 238, 0.3);
}

.check-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.reset-btn {
    background: var(--color-neutral-bg-light);
    color: var(--color-neutral-muted);
    border: 1px solid var(--color-neutral-border);
}

.reset-btn:hover {
    background: var(--color-white);
    border-color: var(--color-neutral-muted);
    color: var(--color-neutral-text);
}

.hint-btn {
    background: transparent;
    border: 1px solid #ffc107;
    color: #ffc107;
    padding: var(--space-2) var(--space-4);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.hint-btn:hover {
    background: #ffc107;
    color: var(--color-white);
}

/* Explanation & Hint Boxes */
.explanation-box, .hint-box {
    margin-top: var(--space-4);
    padding: var(--space-4);
    border-radius: 8px;
    display: none;
    animation: slideDown 0.3s ease;
}

.explanation-box.show, .hint-box.show {
    display: block;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.explanation-box {
    background: var(--color-neutral-bg-light);
    border-left: 4px solid #28a745;
}

.explanation-box h6 {
    color: #28a745;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.explanation-content {
    color: var(--color-neutral-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.hint-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
}

.hint-box h6 {
    color: #856404;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.hint-content {
    color: #856404;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* ==================== TEST NAVIGATION ==================== */
.test-navigation {
    background: var(--color-white);
    border-radius: 10px;
    padding: var(--space-5);
    margin-top: var(--space-5);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-neutral-border-light);
}

.navigation-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    color: var(--color-neutral-muted);
    font-size: var(--font-size-sm);
}

.navigation-info .badge {
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    padding: var(--space-1) var(--space-2);
    border-radius: 20px;
}

.pagination-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.pagination-buttons .btn {
    padding: var(--space-2) var(--space-5);
    border-radius: 8px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pagination-buttons .btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
}

.pagination-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pagination-buttons .btn-outline-secondary {
    background: transparent;
    border: 1px solid var(--color-neutral-border);
    color: var(--color-neutral-muted);
}

.pagination-buttons .btn-outline-secondary:hover {
    background: var(--color-neutral-bg-light);
    border-color: var(--color-neutral-border);
    color: var(--color-neutral-text);
}

/* ==================== SIDEBAR WIDGETS ==================== */
.sidebar-widget {
    background: var(--color-white);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-neutral-border-light);
    transition: all var(--transition-smooth);
}

.sidebar-widget:hover {
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-neutral-border);
}

.sidebar-widget .card-header {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    font-weight: var(--font-weight-bold);
    padding: var(--space-4) var(--space-5);
}

.sidebar-widget .card-header h5 {
    margin: 0;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.sidebar-widget .card-header i {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

.sidebar-widget .card-body {
    padding: var(--space-5);
}

/* Quick Stats */
.quick-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.stats-badge {
    padding: var(--space-3) var(--space-4);
    border-radius: 8px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.stats-badge.easy {
    background: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.stats-badge.medium {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
}

.stats-badge.hard {
    background: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}

/* Recommended Topics List */
.recommended-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.recommended-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3);
    border-radius: 8px;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.recommended-item:hover {
    background: var(--color-neutral-bg-light);
    border-color: var(--color-primary-light);
    transform: translateX(5px);
}

.recommended-item .topic-info {
    display: flex;
    flex-direction: column;
}

.recommended-item .topic-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-neutral-text);
    margin-bottom: var(--space-1);
}

.recommended-item .topic-level {
    font-size: var(--font-size-xs);
    color: var(--color-neutral-muted);
}

.recommended-item .topic-count {
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: var(--space-1) var(--space-2);
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

/* Quick Actions */
.quick-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.quick-action-btn {
    padding: var(--space-3) var(--space-5);
    border-radius: 8px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.quick-action-btn.primary {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.quick-action-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
}

.quick-action-btn.outline-primary {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.quick-action-btn.outline-primary:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ==================== EMPTY STATES ==================== */
.empty-state {
    text-align: center;
    padding: var(--space-8) var(--space-4);
}

.empty-state i {
    font-size: var(--font-size-4xl);
    color: var(--color-neutral-muted-light);
    margin-bottom: var(--space-4);
}

.empty-state h5 {
    color: var(--color-neutral-muted);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-2);
}

.empty-state p {
    color: var(--color-neutral-muted-light);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 992px) {
    .practice-hero h1 {
        font-size: var(--font-size-2xl);
    }
    
    .practice-hero p {
        font-size: var(--font-size-base);
    }
    
    .topic-content-header h2 {
        font-size: var(--font-size-xl);
    }
}

@media (max-width: 768px) {
    .practice-hero {
        padding: var(--space-8) 0;
        text-align: center;
    }
    
    .practice-hero-content {
        flex-direction: column;
    }
    
    .practice-hero-icon {
        margin-bottom: var(--space-3);
    }
    
    .practice-hero-text p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .difficulty-filters {
        justify-content: center;
    }
    
    .topic-actions {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .questions-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .question-card .d-flex {
        flex-direction: column;
    }
    
    .question-counter {
        margin-bottom: var(--space-3);
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .check-btn, .reset-btn, .hint-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .practice-hero h1 {
        font-size: var(--font-size-xl);
    }
    
    .topic-meta {
        flex-direction: column;
        gap: var(--space-2);
    }
    
    .topic-meta-badge {
        width: fit-content;
    }
    
    .pagination-buttons {
        flex-direction: column;
    }
    
    .pagination-buttons .btn {
        width: 100%;
    }
}