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

:root {
    --primary-color: #ff5a1f;
    --primary-dark: #faf9f6;
    --secondary-color: #faf9f6;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Navigation ===== */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-brand i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(90deg,rgba(36, 36, 43, 1) 27%, rgba(72, 72, 87, 1) 50%, rgba(138, 132, 132, 1) 92%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ===== Buttons ===== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

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

.btn-success:hover {
    opacity: 0.9;
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn.success {
    background-color: var(--secondary-color) !important;
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(165deg, #ff5a1f 0%, #fF5a2f 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* ===== Features Grid ===== */
.features {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.btn-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-link:hover {
    text-decoration: underline;
}

/* ===== Prompts Library ===== */
.prompt-controls {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin: 2rem 0;
}

.search-bar {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-bar i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.search-bar input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 45px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-section label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

.filter-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.prompts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.prompt-card {
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.prompt-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.prompt-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.prompt-header h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.category-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.prompt-body {
    padding: 1.5rem;
}

.prompt-text {
    background-color: var(--bg-light);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    max-height: 150px;
    overflow-y: auto;
}

.prompt-text pre {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.when-to-use {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.when-to-use i {
    color: var(--warning-color);
    margin-top: 3px;
}

.prompt-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background-color: var(--bg-light);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--text-light);
}

.prompt-actions {
    padding: 1rem 1.5rem;
    background-color: var(--bg-light);
    display: flex;
    gap: 0.5rem;
}

.prompt-actions .btn {
    flex: 1;
    justify-content: center;
}

.no-results {
    text-align: center;
    padding: 4rem 2rem;
}

.no-results i {
    font-size: 4rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow-y: auto;
}

.modal-content {
    background-color: var(--bg-white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 12px;
    max-width: 800px;
    position: relative;
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-light);
}

.modal-close:hover {
    color: var(--text-dark);
}

.modal-content h2 {
    margin-bottom: 1rem;
}

.modal-body {
    margin: 2rem 0;
}

.prompt-text-large {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.prompt-text-large pre {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    line-height: 1.6;
}

.modal-actions {
    text-align: center;
}

/* ===== Builder Page ===== */
.builder-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.builder-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-box,
.examples-box {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.info-box h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.info-box ol {
    margin-left: 1.5rem;
}

.info-box li {
    margin-bottom: 0.5rem;
}

.examples-box h4 {
    margin-bottom: 1rem;
}

.example-btn {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.example-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.builder-main {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group label i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.hint {
    display: block;
    font-weight: normal;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

textarea.form-control {
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

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

.output-section h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.output-box {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--secondary-color);
}

.output-box pre {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    line-height: 1.6;
}

.output-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.next-steps {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
}

.next-steps h4 {
    margin-bottom: 0.5rem;
}

.next-steps ul {
    margin-left: 1.5rem;
}

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

.saved-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.saved-card {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
}

.saved-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.saved-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.saved-prompt {
    background-color: white;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.saved-prompt pre {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

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

/* ===== Quiz Page ===== */
.quiz-intro {
    margin: 2rem 0;
}

.warning-box {
    background-color: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: 1.5rem;
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.warning-box i {
    font-size: 2rem;
    color: var(--warning-color);
}

.warning-box h3 {
    margin-bottom: 0.5rem;
}

#quizContainer {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin: 2rem 0;
}

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

.progress-bar {
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

.progress-text {
    text-align: center;
    color: var(--text-light);
    font-weight: 600;
}

.question-card {
    margin-bottom: 2rem;
}

.question-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.question-text {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.option-label {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.option-label:hover {
    border-color: var(--primary-color);
    background-color: #eff6ff;
}

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

.option-label input[type="radio"] {
    margin-top: 0.25rem;
}

.option-text {
    flex: 1;
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.results-container {
    background: var(--bg-white);
    padding: 3rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin: 2rem 0;
    text-align: center;
}

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

.results-header i {
    font-size: 4rem;
    color: var(--warning-color);
}

.results-header h2 {
    font-size: 2rem;
    margin-top: 1rem;
}

.score-display {
    margin: 2rem 0;
}

.score-circle {
    width: 200px;
    height: 200px;
    border: 10px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.score-circle span {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
}

.score-text {
    font-size: 1.2rem;
    color: var(--text-light);
}

.score-message {
    max-width: 600px;
    margin: 2rem auto;
}

.results-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 2rem 0;
}

.review-section {
    text-align: left;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.review-card {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--border-color);
}

.review-card.correct {
    border-left-color: var(--secondary-color);
}

.review-card.incorrect {
    border-left-color: var(--danger-color);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.review-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.badge-correct {
    background-color: var(--secondary-color);
    color: white;
}

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

.review-question {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.review-answer,
.review-correct {
    margin-bottom: 0.5rem;
}

.review-explanation {
    background-color: white;
    padding: 1rem;
    border-radius: 4px;
    margin-top: 1rem;
}

/* ===== Contact Page ===== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin: 2rem 0;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.info-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-card h3 {
    margin-bottom: 1rem;
}

.contact-link {
    margin-top: 1rem;
}

.contact-link a {
    color: var(--primary-color);
    text-decoration: none;
}

.feedback-list {
    list-style: none;
}

.feedback-list li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feedback-list i {
    color: var(--secondary-color);
    font-size: 1rem;
}

.contact-form-container {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-form-container h2 {
    margin-bottom: 1.5rem;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.required {
    color: var(--danger-color);
}

.form-hint {
    color: var(--text-light);
    font-size: 0.9rem;
}

.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert-success {
    background-color: #d1fae5;
    border-left: 4px solid var(--secondary-color);
    color: #065f46;
}

.alert-error {
    background-color: #fee2e2;
    border-left: 4px solid var(--danger-color);
    color: #991b1b;
}

.alert-info {
    background-color: #dbeafe;
    border-left: 4px solid var(--primary-color);
    color: #1e40af;
}

.faq-section {
    margin: 4rem 0;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

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

.faq-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.faq-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.support-section {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin: 4rem 0;
}

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

.support-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.support-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 12px;
}

.support-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.support-card h4 {
    margin-bottom: 0.5rem;
}

/* ===== About Section ===== */
.about-section {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin: 3rem 0;
}

.about-section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

blockquote {
    background: var(--bg-light);
    padding: 2rem;
    border-left: 4px solid var(--primary-color);
    margin: 2rem 0;
    position: relative;
}

blockquote i {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: 1rem;
    left: 1rem;
}

blockquote p {
    font-size: 1.2rem;
    font-style: italic;
    margin-left: 2rem;
}

blockquote cite {
    display: block;
    text-align: right;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--primary-color);
}

.cta-section {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0;
}

.cta-content h2 {
    margin-bottom: 1rem;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.2rem;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.footer-section a:hover {
    color: white;
}

.book-credit {
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .builder-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }
    
    .builder-sidebar {
        order: 2;
    }
    
    .prompts-grid {
        grid-template-columns: 1fr;
    }
    
    .quiz-navigation {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}