@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;700&display=swap');

:root {
    /* Light theme */
    --primary-color: #000000;
    --secondary-color: #f8f8f8;
    --accent-color: #ff0000;
    --text-color: #222;
    --light-gray: #f5f5f5;
    --medium-gray: #e2e3e5;
    --dark-gray: #444;
    --background-color: #f8f8f8;
    --card-background: white;
    --minimal-color: #a8e6cf;
    --mild-color: #fdfd96;
    --moderate-color: #ffb347;
    --severe-color: #ff6b6b;
    --shadow-color: rgba(0,0,0,0.15);
    --transition-time: 0.4s;
    --animation-time: 0.7s;
    --border-radius: 12px;
    --box-shadow: 0 4px 20px var(--shadow-color);
}

[data-theme="dark"] {
    --primary-color: #ff0000;
    --secondary-color: #2a2a2a;
    --accent-color: #ff3333;
    --text-color: #f0f0f0;
    --light-gray: #2a2a2a;
    --medium-gray: #3a3a3a;
    --dark-gray: #cccccc;
    --background-color: #1a1a1a;
    --card-background: #2a2a2a;
    --minimal-color: #3e7055;
    --mild-color: #7a7a40;
    --moderate-color: #7a5527;
    --severe-color: #853333;
    --shadow-color: rgba(0,0,0,0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--background-color);
    background-image: linear-gradient(135deg, var(--background-color) 0%, var(--secondary-color) 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}

.card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: transform var(--transition-time), box-shadow var(--transition-time);
    position: relative;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 28px var(--shadow-color);
}

/* Theme switch */
.theme-switch-wrapper {
    position: fixed;
    top: 15px;
    right: 15px;
    z-index: 100;
}

.theme-switch {
    display: inline-block;
    position: relative;
    width: 60px;
    height: 34px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--medium-gray);
    transition: .4s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    z-index: 2;
}

.theme-icon {
    font-size: 16px;
    z-index: 1;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Header styling */
.header {
    background-color: var(--primary-color);
    color: white;
    padding: 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header:before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 0%, rgba(255, 0, 0, 0.1) 50%, transparent 100%);
    animation: shine 4s infinite;
    z-index: 1;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    30% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.header h1 {
    margin-bottom: 10px;
    font-size: 2.2rem;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    position: relative;
    z-index: 2;
}

.header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    position: relative;
    z-index: 2;
}

.survey-container {
    padding: 0;
    position: relative;
}

/* Progress bar and steps */
.progress-container {
    width: 100%;
    height: 6px;
    background-color: var(--light-gray);
    position: relative;
    margin-bottom: 10px;
}

.progress-bar {
    height: 100%;
    background-color: var(--accent-color);
    width: 0%;
    transition: width var(--transition-time) ease;
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    position: absolute;
    width: 100%;
    top: 10px;
}

.progress-step {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--medium-gray);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 10px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.progress-step.active {
    background-color: var(--accent-color);
    color: white;
    transform: scale(1.2);
}

.progress-step.completed {
    background-color: var(--accent-color);
    color: white;
}

/* Question slides styling */
.question-slides {
    position: relative;
    min-height: 440px;
}

.question-slide {
    padding: 30px;
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--animation-time) ease, transform var(--animation-time) ease;
}

.question-slide.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.question-number {
    color: var(--accent-color);
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 500;
    display: inline-block;
    position: relative;
}

.question-number:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30px;
    height: 3px;
    background-color: var(--accent-color);
}

.question-text {
    margin-bottom: 25px;
}

.question-text p {
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 1.4;
    color: var(--text-color);
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.option-box {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--light-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-time);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.option-box:hover {
    background-color: var(--medium-gray);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.option-box input[type="radio"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.option-box .option-text {
    flex-grow: 1;
    font-size: 1.1rem;
    font-weight: 500;
    margin-left: 15px;
    position: relative;
    z-index: 2;
}

.option-box .score-value {
    background-color: var(--primary-color);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    position: relative;
    z-index: 2;
}

.option-box input[type="radio"]:checked + .option-text {
    color: white;
}

.option-box input[type="radio"]:checked + .option-text + .score-value {
    background-color: white;
    color: var(--accent-color);
}

.option-box input[type="radio"]:checked ~ .option-text {
    color: white;
}

.option-box:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background-color: var(--accent-color);
    transition: width var(--transition-time) ease;
    z-index: 1;
}

.option-box input[type="radio"]:checked ~ :before,
.option-box.selected:before {
    width: 100%;
}

.option-box.selected {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,0,0,0.15);
}

.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.nav-button {
    padding: 12px 25px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-time);
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.prev-button {
    background-color: var(--medium-gray);
    color: var(--text-color);
}

.next-button {
    background-color: var(--primary-color);
    color: white;
    opacity: 0.5;
    cursor: not-allowed;
}

.next-button:not(:disabled) {
    opacity: 1;
    cursor: pointer;
}

.next-button:not(:disabled):hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.submit-button, .submit-final-button {
    background-color: var(--accent-color);
    color: white;
    padding: 15px 30px;
    font-weight: 700;
    position: relative;
    overflow: hidden;
}

.submit-button:hover, .submit-final-button:hover {
    box-shadow: 0 6px 15px rgba(255,0,0,0.3);
    transform: translateY(-3px);
}

.submit-button:before, .submit-final-button:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: all 0.6s;
}

.submit-button:hover:before, .submit-final-button:hover:before {
    left: 100%;
}

/* Results section styling */
.results {
    padding: 30px;
    animation: fadeIn var(--animation-time) ease-out;
}

.results.hidden {
    display: none;
}

.results h2 {
    text-align: center;
    margin-bottom: 25px;
    color: var(--accent-color);
    font-size: 2rem;
    font-weight: 700;
}

.score-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

.score-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    font-size: 3.5rem;
    font-weight: 700;
    box-shadow: 0 8px 16px var(--shadow-color);
    position: relative;
    overflow: hidden;
    animation: pulseScore 2.5s infinite;
}

.score-circle:before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    animation: ripple 3s infinite;
}

@keyframes pulseScore {
    0% {
        transform: scale(1);
        box-shadow: 0 8px 16px var(--shadow-color);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 12px 24px var(--shadow-color);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 8px 16px var(--shadow-color);
    }
}

@keyframes ripple {
    0% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.2; }
    100% { transform: scale(0.8); opacity: 0.5; }
}

#interpretationText {
    font-size: 1.2rem;
    text-align: center;
    max-width: 600px;
    line-height: 1.5;
    color: var(--text-color);
}

.result-details {
    margin-bottom: 30px;
}

.severity-bar {
    display: flex;
    height: 60px;
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    margin-bottom: 35px;
    box-shadow: 0 4px 8px var(--shadow-color);
}

.severity-segment {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 10px;
    position: relative;
    font-weight: 600;
    transition: all var(--transition-time);
    color: rgba(0,0,0,0.7);
}

.severity-segment:hover {
    transform: translateY(-5px);
    z-index: 3;
    box-shadow: 0 8px 16px var(--shadow-color);
}

.severity-segment span:last-child {
    font-size: 0.85rem;
    margin-top: 3px;
    font-weight: 500;
}

.minimal {
    background-color: var(--minimal-color);
}

.mild {
    background-color: var(--mild-color);
}

.moderate {
    background-color: var(--moderate-color);
}

.severe {
    background-color: var(--severe-color);
}

.pointer-indicator {
    position: absolute;
    bottom: -12px;
    width: 24px;
    height: 24px;
    background-color: var(--primary-color);
    transform: rotate(45deg);
    transition: left 1s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    box-shadow: 0 4px 8px var(--shadow-color);
    z-index: 2;
}

/* Chart styles */
.chart-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto 30px;
    padding: 15px;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 8px var(--shadow-color);
    position: relative;
}

/* Recommendations */
.recommendations {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.recommendations h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.recommendations ul {
    margin-left: 20px;
}

.recommendations li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 10px;
}

.recommendations li:before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: -10px;
}

/* History section */
.history-section {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
}

.history-section h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.history-container {
    width: 100%;
    position: relative;
    min-height: 200px;
}

#noHistoryMessage {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--dark-gray);
    font-style: italic;
    text-align: center;
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 25px;
}

.reset-button, .print-button, .share-button {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-time);
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    min-width: 160px;
}

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

.print-button {
    background-color: var(--dark-gray);
    color: white;
}

.share-button {
    background-color: var(--accent-color);
    color: white;
}

.reset-button:hover, .print-button:hover, .share-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.reset-button:hover {
    background-color: var(--accent-color);
}

.print-button:hover {
    background-color: #555;
}

.share-button:hover {
    background-color: #cc0000;
}

.disclaimer {
    padding: 20px;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    color: var(--text-color);
    position: relative;
    border-left: 4px solid var(--accent-color);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes highlight {
    0% {
        transform: translateX(-5px);
        box-shadow: 0 0 0 3px var(--accent-color);
    }
    100% {
        transform: translateX(0);
        box-shadow: 0 4px 12px rgba(255,0,0,0.15);
    }
}

.hidden {
    display: none;
}

/* Modal for sharing */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--card-background);
    padding: 30px;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    position: relative;
    transform: translateY(50px);
    transition: all 0.4s ease;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

.share-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.share-option {
    flex: 1;
    min-width: 120px;
    padding: 12px;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--light-gray);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.share-option:hover {
    background-color: var(--medium-gray);
    transform: translateY(-3px);
}

/* Print styles */
@media print {
    body * {
        visibility: hidden;
    }
    #results, #results * {
        visibility: visible;
    }
    #results {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        padding: 20px;
    }
    .action-buttons, .theme-switch-wrapper {
        display: none;
    }
}

/* Responsive styles */
@media (max-width: 768px) {
    .container {
        margin: 20px auto;
    }
    
    .header {
        padding: 20px;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .question-text p {
        font-size: 1.2rem;
    }
    
    .option-box {
        padding: 12px 15px;
    }
    
    .option-box .option-text {
        font-size: 1rem;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .chart-container {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
        margin: 10px auto;
    }
    
    .theme-switch-wrapper {
        top: 10px;
        right: 10px;
    }
    
    .question-slide, .results {
        padding: 20px 15px;
    }
    
    .question-text p {
        font-size: 1.1rem;
    }
    
    .score-circle {
        width: 120px;
        height: 120px;
        font-size: 3rem;
    }
    
    .nav-button {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    
    .action-buttons {
        gap: 10px;
    }
    
    .reset-button, .print-button, .share-button {
        padding: 12px;
        font-size: 0.8rem;
    }
}

/* Contact Button Styling */
#contactButton {
    background-color: #3a7ca5;
    color: white;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

#contactButton:hover {
    background-color: #2c5d7c;
    transform: translateY(-2px);
}