/* Base styles with accessibility considerations */
:root {
    --primary-color: #461535;
    --background-color: #ffffff;
    --accent-color: #0040a3;
    /* Darker blue for better contrast */
    --error-color: #e74c3c;
    --success-color: #27ae60;
    --focus-outline: 3px solid var(--accent-color);
    --focus-ring-color: rgba(0, 86, 179, 0.5);
    --progress-bg: #edf2f7;
    --text-color: #2c3e50;
    --border-color: #e2e8f0;
    --hover-bg: rgba(0, 0, 0, 0.05);
    --transition-speed: 0.3s;
}

/* Apply box-sizing border-box to all elements */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Checkbox styling */
.checkbox-container {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.checkbox-container input[type='checkbox'] {
    width: auto;
    margin-right: 0.5rem;
}

select {
    width: 100%;
    padding: 0.5rem;
    font-size: 1rem;
    border-radius: 4px;
    border: 1px solid var(--primary-color);
}

.checkbox-container label {
    margin-bottom: 0;
}

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

/* Base styles for readability */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial,
        sans-serif;
    line-height: 1.6;
    color: var(--primary-color);
    background-color: var(--background-color);
    margin: 0;
    font-size: 16px;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Skip link with enhanced visibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent-color);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
    outline: var(--focus-outline);
    outline-offset: 2px;
}

/* Enhanced focus styles */
:focus-visible {
    outline: var(--focus-outline);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Progress bar styles */
.quiz-progress {
    margin: 2rem 0;
}

/* Images */
.decorative-image,
.info-image {
    max-width: 15rem;
    height: auto;
    margin: 1rem 0;
    border-radius: 4px;
}

.progress-bar {
    background-color: var(--progress-bg);
    border-radius: 8px;
    height: 20px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    background-color: var(--primary-color);
    height: 100%;
    transition: width 0.3s ease;
    border-radius: 8px;
}

.progress-text {
    margin-top: 0.5rem;
    text-align: center;
    font-weight: 500;
}

/* Question groups */
.question-group {
    margin-bottom: 2rem;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background-color: #f8fafc;
}

.question-heading {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Form elements */
fieldset {
    border: 1px solid var(--primary-color);
    margin: 1em 0;
    padding: 1em;
    border-radius: 4px;
}

legend {
    font-weight: bold;
    padding: 0.5em 1em;
    color: var(--primary-color);
    background-color: #f8fafc;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
}

.radio-group {
    margin: 1em 0;
}

/* Enhanced radio button styling */
.radio-option {
    position: relative;
    padding: 0.75em;
    margin: 0.5em 0;
    border-radius: 4px;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
}

.radio-option:hover {
    background-color: rgba(44, 62, 80, 0.1);
}

/* Custom radio button styling */
input[type='radio'] {
    margin-right: 0.75em;
    width: 20px;
    height: 20px;
}

input[type='radio']:focus-visible+label {
    outline: var(--focus-outline);
    outline-offset: 2px;
    border-radius: 2px;
}

input[type='radio']+label {
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
    flex: 1;
}

/* Instructions section */
.quiz-instructions {
    background-color: #f8f9fa;
    padding: 1em;
    margin: 1em 0;
    border-left: 4px solid var(--accent-color);
    border-radius: 0 4px 4px 0;
}

/* Submit button */
.form-controls {
    margin-top: 2rem;
    text-align: center;
}

.submit-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.2s, transform 0.1s;
    font-weight: 500;
}

.submit-button:hover {
    background-color: #34495e;
}

.submit-button:active {
    transform: scale(0.98);
}

.submit-button:focus-visible {
    outline: var(--focus-outline);
    outline-offset: 2px;
}

/* Results section */
#results {
    margin-top: 2rem;
    padding: 1.5rem;
    border-radius: 8px;
    background-color: #f8fafc;
    border: 1px solid var(--primary-color);
    margin-bottom: 3rem;
}

.feedback-details {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
}

#feedback-form {
    margin-bottom: 3rem;
}

/* Utility classes */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
    clip: rect(0 0 0 0) !important;
    white-space: nowrap !important;
  }
  
  #loading-indicator.active {
    position: static !important;
    width: auto !important;
    height: auto !important;
    overflow: visible !important;
    clip: auto !important;
    margin-top: 1rem;
    font-weight: bold;
  }

/* High contrast mode */
@media (prefers-contrast: more) {
    :root {
        --primary-color: #000000;
        --background-color: #ffffff;
        --accent-color: #0000ff;
        --error-color: #ff0000;
        --success-color: #008000;
        --text-color: #000000;
        --border-color: #000000;
        --hover-bg: #000000;
        --focus-outline: 3px solid #000000;
        --focus-ring-color: #000000;
        --progress-bg: #ffffff;
    }

    body {
        background-color: var(--background-color);
        color: var(--text-color);
    }

    a {
        color: var(--accent-color);
        text-decoration: underline;
    }

    button,
    input,
    select,
    textarea {
        border: 2px solid var(--text-color);
        background-color: var(--background-color);
        color: var(--text-color);
    }

    fieldset {
        border: 2px solid var(--text-color);
    }

    legend {
        border: 2px solid var(--text-color);
        background-color: var(--background-color);
    }

    .radio-option:hover,
    .checkbox-container:hover {
        background-color: var(--hover-bg);
    }

    .progress-bar {
        border: 2px solid var(--text-color);
    }

    .progress-fill {
        background-color: var(--text-color);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .progress-fill {
        transition: none;
    }

    .skip-link {
        transition: none;
    }

    button,
    input,
    select,
    textarea {
        transition: none;
    }
}

/* Add a class for manual high contrast toggle */
.high-contrast-mode {
    --primary-color: #000000 !important;
    --background-color: #ffffff !important;
    --accent-color: #0000ff !important;
    --error-color: #ff0000 !important;
    --success-color: #008000 !important;
    --text-color: #000000 !important;
    --border-color: #000000 !important;
    --hover-bg: #000000 !important;
    --focus-outline: 3px solid #000000 !important;
    --focus-ring-color: #000000 !important;
    --progress-bg: #ffffff !important;
}

/* Basic responsive design */
@media (max-width: 600px) {
    fieldset {
        padding: 0.5em;
    }

    header {
        padding: 1.25rem;
    }

    nav ul {
        gap: 0.75rem;
    }
}

/* User Info Form */
#user-info {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.form-control {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-control label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-control input {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.form-control input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--focus-ring-color);
}

.form-control input[aria-invalid='true'] {
    border-color: var(--error-color);
}

.form-control input[aria-invalid='true']:focus {
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.25);
}

.error {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.hint {
    color: var(--secondary-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Introduction section and images */
#introduction {
    padding: 2rem;
    margin-bottom: 2rem;
    background-color: #f8fafc;
    border-radius: 12px;
}

#introduction h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

#introduction p {
    max-width: 800px;
    margin: 0 auto 2rem;
}

.hero-images {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    margin: 2rem 0;
}

.decorative-image,
.info-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.info-image {
    padding: 1rem;
    background: white;
}

@media (min-width: 768px) {
    .hero-images {
        flex-direction: row;
        justify-content: center;
        gap: 3rem;
    }

    .decorative-image,
    .info-image {
        width: 45%;
        max-width: 400px;
    }
}

/* Full-width banner */
#banner {
    margin: -20px -20px 2rem;
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    overflow: hidden;
}

#banner img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

h1,
h2 {
    margin-bottom: 1rem;
}

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 1rem;
}

nav a {
    color: var(--accent-color);
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

/* About page specific styles */
#about {
    padding: 3rem;
    background-color: #f8fafc;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

#about h2 {
    color: #2c3e50;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 3px solid #3498db;
    padding-bottom: 0.5rem;
    display: inline-block;
}

#about p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #34495e;
    margin-bottom: 2rem;
    max-width: 700px;
}

#about .hero-images {
    margin: 3rem 0;
    display: flex;
    justify-content: center;
}

#about .hero-images img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

#about .hero-images img:hover {
    transform: scale(1.02);
}

/* Header improvements */
#header {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
}

#header .header-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

#header h1 {
    color: white;
    margin-bottom: 1rem;
}

#header nav ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
    display: flex;
    gap: 2rem;
}

#header nav a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: opacity var(--transition-speed);
}

#header nav a:hover {
    opacity: 0.8;
    background-color: rgba(255, 255, 255, 0.1);
}

@media (max-width: 600px) {
    #header {
        padding: 1.5rem 0;
    }

    #header nav ul {
        gap: 1rem;
    }
}

/* Accordion Styles */
.accordion-container {
    margin: 2rem 0;
    max-width: 800px;
}

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

.accordion {
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
}

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

/* Remove margins from h4 in accordion items */
.accordion-item h4 {
    margin: 0;
}

.accordion-button {
    width: 100%;
    padding: 2rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-speed) ease;
}

.accordion-button:hover {
    background-color: var(--hover-bg);
}

.accordion-button:focus-visible {
    outline: var(--focus-outline);
    outline-offset: -2px;
}

.accordion-icon {
    display: inline-block;
    width: 1.2rem;
    height: 1.2rem;
    position: relative;
    transition: transform var(--transition-speed) ease;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background-color: currentColor;
    transition: transform var(--transition-speed) ease;
}

.accordion-icon::before {
    width: 2px;
    height: 1.2rem;
    left: 50%;
    transform: translateX(-50%);
}

.accordion-icon::after {
    width: 1.2rem;
    height: 2px;
    top: 50%;
    transform: translateY(-50%);
}

.accordion-button[aria-expanded='true'] .accordion-icon::before {
    transform: translateX(-50%) rotate(90deg);
}

.accordion-content {
    padding: 0 1rem;
    overflow: hidden;
    transition: max-height var(--transition-speed) ease-out;
}

.accordion-content[hidden] {
    display: none;
}

.accordion-content:not([hidden]) {
    padding-bottom: 1rem;
}

/* High contrast mode support */
.high-contrast-mode .accordion-button {
    border: 2px solid var(--primary-color);
    margin: 0.5rem;
}

.high-contrast-mode .accordion-button:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Footer styles */
footer {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
    margin-top: auto;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    gap: 2rem;
}

.footer-content nav {
    margin-bottom: 1rem;
}

.footer-content h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-content a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 0;
    display: block;
    transition: opacity var(--transition-speed);
}

.footer-content a:hover {
    opacity: 0.8;
}

.footer-info {
    grid-column: 1 / -1;
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 600px) {
    footer {
        padding-bottom: 4rem;
    }

    .footer-info {
        margin-bottom: 10rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-content nav {
        margin-bottom: 2rem;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {

    .accordion-button,
    .accordion-icon,
    .accordion-icon::before,
    .accordion-icon::after,
    .accordion-content {
        transition: none;
    }
}