/**
 * LVV Certifier Training Platform - Styles
 */

/* ==================== CSS Variables ==================== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    --info: #0891b2;

    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;

    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --border-color: #e2e8f0;
    --border-radius: 8px;
    --border-radius-lg: 12px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

    --transition: all 0.2s ease;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", monospace;
}

/* ==================== Reset & Base ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
}

/* ==================== Layout ==================== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

/* Navigation */
.main-nav {
    display: flex;
    gap: 0.5rem;
}

.main-nav a {
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.main-nav a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.main-nav a.active {
    background: var(--primary);
    color: white;
}

/* Search */
.search-container {
    position: relative;
    flex: 1;
    max-width: 400px;
}

#search-input {
    width: 100%;
    padding: 0.625rem 1rem 0.625rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.9375rem;
    transition: var(--transition);
    background: var(--bg-tertiary);
}

#search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

#search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: none;
    max-height: 400px;
    overflow-y: auto;
}

#search-results.active {
    display: block;
}

.search-result-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: var(--bg-tertiary);
}

.search-result-category {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    color: white;
    margin-bottom: 0.25rem;
}

.search-result-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.125rem;
}

.search-result-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.search-no-results {
    padding: 1rem;
    text-align: center;
    color: var(--text-muted);
}

mark {
    background: #fef08a;
    padding: 0.1em 0.2em;
    border-radius: 2px;
}

/* Main content */
#main-content {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    gap: 0.5rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--border-color);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #047857;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #b91c1c;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.0625rem;
}

/* ==================== Cards ==================== */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.375rem;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* ==================== Progress Bars ==================== */
.progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar.large {
    height: 12px;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* ==================== Home View ==================== */
.hero {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-quote {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 0.5rem;
}

.hero-source {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.quick-start {
    margin-bottom: 2rem;
}

.quick-start h2 {
    margin-bottom: 1rem;
}

.features {
    margin-bottom: 2rem;
}

.features h2 {
    margin-bottom: 1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.feature h3 {
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Progress Summary */
.progress-summary {
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    text-align: center;
}

.stat-card.large {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    text-align: left;
    padding: 1.5rem;
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==================== Modules View ==================== */
.view-header {
    margin-bottom: 2rem;
}

.view-header h1 {
    margin-bottom: 0.5rem;
}

.view-header p {
    color: var(--text-secondary);
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.module-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.module-card:hover:not(.locked) {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.module-card.complete {
    border-color: var(--success);
}

.module-card.locked {
    opacity: 0.7;
    cursor: not-allowed;
}

.module-number {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.module-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.module-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.module-meta {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.module-difficulty, .module-time {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    background: var(--bg-tertiary);
}

.module-difficulty.essential {
    background: #dbeafe;
    color: #1e40af;
}

.module-difficulty.beginner {
    background: #dcfce7;
    color: #166534;
}

.module-difficulty.intermediate {
    background: #fef3c7;
    color: #92400e;
}

.module-difficulty.advanced {
    background: #fce7f3;
    color: #9d174d;
}

.module-progress span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.module-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--success);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.module-locked {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==================== Module Detail View ==================== */
.module-view {
    max-width: 1200px;
}

.module-header {
    margin-bottom: 2rem;
}

.back-link {
    display: inline-block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.back-link:hover {
    color: var(--primary);
}

.module-title-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.module-title-row h1 {
    font-size: 1.75rem;
}

.module-progress-bar {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    margin-bottom: 2rem;
}

.module-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
}

.module-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.section-nav {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.section-nav h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.section-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.25rem;
}

.section-nav-item:hover {
    background: var(--bg-tertiary);
}

.section-nav-item.current {
    background: var(--primary);
    color: white;
}

.section-nav-item.complete .section-num {
    background: var(--success);
    color: white;
}

.section-num {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.section-nav-item.current .section-num {
    background: rgba(255, 255, 255, 0.2);
}

.section-title {
    font-size: 0.875rem;
    flex: 1;
}

.section-check {
    color: var(--success);
}

.section-nav-item.current .section-check {
    color: white;
}

.related-documents {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.related-documents h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.related-doc {
    padding: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.25rem;
}

.related-doc:hover {
    background: var(--bg-tertiary);
}

.doc-category {
    display: inline-block;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-size: 0.625rem;
    color: white;
    margin-right: 0.5rem;
}

.doc-title {
    font-size: 0.8125rem;
}

.quiz-prompt {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--border-radius);
    padding: 1.25rem;
    text-align: center;
}

.quiz-prompt h3 {
    font-size: 1rem;
    margin-bottom: 0.375rem;
}

.quiz-prompt p {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}

.quiz-prompt .btn {
    background: white;
    color: var(--primary);
}

/* Section Content */
.section-content {
    min-width: 0;
}

.section-article {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.section-article h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.content-body h3 {
    font-size: 1.25rem;
    margin: 1.5rem 0 0.75rem;
    color: var(--text-primary);
}

.content-body h4 {
    font-size: 1rem;
    margin: 1.25rem 0 0.5rem;
    color: var(--text-secondary);
}

.content-body p {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.content-body ul, .content-body ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.content-body li {
    margin-bottom: 0.5rem;
}

.content-body blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-secondary);
}

.key-concept {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
}

.key-concept h4 {
    color: var(--primary);
    margin: 0 0 0.5rem !important;
}

.key-concept p {
    margin: 0 !important;
    color: var(--text-primary);
}

.key-points {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    padding: 1.25rem 1.5rem;
    margin-top: 2rem;
}

.key-points h3 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.key-points ul {
    margin: 0;
    padding-left: 1.25rem;
}

.key-points li {
    margin-bottom: 0.375rem;
    color: var(--text-secondary);
}

.section-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.completed-badge {
    color: var(--success);
    font-weight: 600;
}

/* ==================== Documents View ==================== */
.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.category-tab {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
}

.category-tab:hover {
    background: var(--bg-tertiary);
}

.category-tab.active {
    color: white;
    border-color: transparent;
}

.document-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.document-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}

.document-card:hover {
    box-shadow: var(--shadow-md);
}

.document-card.viewed {
    border-left: 4px solid var(--success);
}

.doc-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.bookmark-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-muted);
    padding: 0.25rem;
    transition: var(--transition);
}

.bookmark-btn:hover {
    color: var(--warning);
}

.bookmark-btn.active {
    color: var(--warning);
}

.document-card .doc-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.doc-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
}

.doc-summary {
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    margin-bottom: 0.75rem;
}

.doc-meta {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1rem;
}

.doc-difficulty {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    background: var(--bg-tertiary);
}

.doc-difficulty.essential {
    background: #dbeafe;
    color: #1e40af;
}

.doc-difficulty.reference {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.viewed-badge {
    font-size: 0.75rem;
    color: var(--success);
}

.doc-actions {
    display: flex;
    gap: 0.5rem;
}

/* ==================== Quiz View ==================== */
.quiz-view {
    max-width: 800px;
    margin: 0 auto;
}

.quiz-intro, .quiz-complete {
    text-align: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 3rem 2rem;
}

.quiz-intro h1, .quiz-complete h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.quiz-intro h2 {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: normal;
    margin-bottom: 1.5rem;
}

.quiz-info {
    margin-bottom: 2rem;
}

.quiz-info p {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

.quiz-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 1.5rem 0;
}

.quiz-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Quiz Progress */
.quiz-progress {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.quiz-progress .progress-bar {
    flex: 1;
}

.quiz-progress span {
    font-size: 0.875rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* Quiz Question */
.quiz-question {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
}

.quiz-question h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.quiz-option:hover {
    border-color: var(--primary);
    background: #f0f7ff;
}

.quiz-option.selected {
    border-color: var(--primary);
    background: #dbeafe;
}

.quiz-option input {
    display: none;
}

.option-text {
    flex: 1;
}

.quiz-nav {
    display: flex;
    justify-content: space-between;
}

/* Quiz Results */
.quiz-results {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.results-header {
    padding: 2rem;
    text-align: center;
}

.results-header.passed {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
}

.results-header.failed {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.results-header h1 {
    margin-bottom: 1rem;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-md);
}

.score-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.results-summary {
    display: flex;
    justify-content: center;
    gap: 2rem;
    padding: 1.5rem;
    background: var(--bg-tertiary);
}

.summary-stat {
    text-align: center;
}

.summary-stat .stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.summary-stat .stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.results-review {
    padding: 2rem;
}

.results-review h2 {
    margin-bottom: 1.5rem;
}

.result-question {
    padding: 1.25rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.result-question.correct {
    background: #d1fae5;
    border-left: 4px solid var(--success);
}

.result-question.incorrect {
    background: #fee2e2;
    border-left: 4px solid var(--danger);
}

.result-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.result-icon {
    font-size: 1.25rem;
}

.result-num {
    font-weight: 600;
    color: var(--text-secondary);
}

.result-text {
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.result-answers {
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
}

.result-explanation {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
}

.results-actions {
    padding: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
    border-top: 1px solid var(--border-color);
}

/* ==================== Progress View ==================== */
.progress-view {
    max-width: 1000px;
}

.overall-stats {
    margin-bottom: 2rem;
}

.achievements-section {
    margin-bottom: 2rem;
}

.achievements-section h2 {
    margin-bottom: 1rem;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.achievement {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.achievement.earned {
    background: linear-gradient(135deg, #fef3c7 0%, #fef9c3 100%);
    border-color: #fcd34d;
}

.achievement.locked {
    opacity: 0.5;
}

.achievement-icon {
    font-size: 2rem;
}

.achievement-info strong {
    display: block;
    margin-bottom: 0.125rem;
}

.achievement-info span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.module-progress-section h2 {
    margin-bottom: 1rem;
}

.module-progress-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.progress-module-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.25rem;
}

.progress-module-card.complete {
    border-color: var(--success);
}

.progress-module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.module-num {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
}

.complete-badge {
    color: var(--success);
    font-weight: bold;
}

.progress-module-card h3 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.progress-details {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.data-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.data-section h2 {
    margin-bottom: 1rem;
}

.data-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ==================== Notifications ==================== */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 1000;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification-success {
    border-left: 4px solid var(--success);
}

.notification-error {
    border-left: 4px solid var(--danger);
}

.notification-info {
    border-left: 4px solid var(--info);
}

.notification button {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

/* ==================== Footer ==================== */
.app-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.footer-content a {
    color: var(--primary);
    text-decoration: none;
}

.footer-content a:hover {
    text-decoration: underline;
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .module-layout {
        grid-template-columns: 1fr;
    }

    .module-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }

    .search-container {
        order: 3;
        max-width: none;
        width: 100%;
    }

    .main-nav {
        order: 2;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-quote {
        font-size: 1rem;
    }

    .quiz-question {
        padding: 1.5rem;
    }

    .quiz-option {
        padding: 0.875rem 1rem;
    }

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

    #main-content {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .main-nav a span {
        display: none;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .quiz-stats {
        flex-direction: column;
        gap: 1rem;
    }
}