/**
 * NANTIA Uplift Questionnaire Styles
 */

/* CSS Variables */
:root {
    --bg-dark: #15181D;
    --bg-medium: #1D2026;
    --bg-light: #242830;
    --bg-card: #2C3039;
    --border-color: #3B404C;
    --text-primary: #ffffff;
    --text-secondary: #8A94A7;
    --text-muted: #5A6270;
    --accent-blue: #0270D7;
    --accent-blue-light: #0F8AFD;
    --accent-green: #00bf9a;
    --accent-red: #dc3545;
    --accent-yellow: #ffc107;
    --accent-orange: #fd7e14;
    --font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Wrapper */
.questionnaire-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.questionnaire-header {
    background: var(--bg-medium);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.questionnaire-header .logo {
    height: 36px;
}

.questionnaire-header .header-title {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Progress Bar */
.progress-container {
    background: var(--bg-medium);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.progress-bar {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
    border-radius: 2px;
    transition: width 0.5s ease;
    width: 16.67%; /* 1/6 stages */
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.progress-step {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.4;
    transition: opacity 0.3s;
}

.progress-step.active {
    opacity: 1;
}

.progress-step.completed {
    opacity: 0.8;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.3s;
}

.progress-step.active .step-number {
    background: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(2, 112, 215, 0.2);
}

.progress-step.completed .step-number {
    background: var(--accent-green);
}

.progress-step.completed .step-number::after {
    content: '✓';
}

.step-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Main Content */
.questionnaire-main {
    flex: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Form Stages */
.form-stage {
    display: none;
    animation: fadeIn 0.4s ease;
}

.form-stage.active {
    display: block;
}

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

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

.stage-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.stage-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-group > label:not(.radio-label):not(.checkbox-label) {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.required {
    color: var(--accent-red);
}

.field-hint {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

/* Inputs */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(2, 112, 215, 0.15);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238A94A7' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* Radio & Checkbox Groups */
.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-label,
.checkbox-label {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.875rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.2s;
    position: relative;
}

.radio-label:hover,
.checkbox-label:hover {
    border-color: var(--accent-blue);
    background: rgba(2, 112, 215, 0.05);
}

.radio-label input,
.checkbox-label input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.radio-custom,
.checkbox-custom {
    width: 20px;
    height: 20px;
    min-width: 20px;
    min-height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.checkbox-custom {
    border-radius: 4px;
}

.radio-label input:checked + .radio-custom,
.checkbox-label input:checked + .checkbox-custom {
    border-color: var(--accent-blue);
    background: var(--accent-blue);
}

.radio-custom::after {
    content: '';
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    transform: scale(0);
    transition: all 0.2s;
}

.radio-label input:checked + .radio-custom::after {
    opacity: 1;
    transform: scale(1);
}

.checkbox-custom::after {
    content: '✓';
    color: white;
    font-size: 12px;
    font-weight: 700;
    opacity: 0;
    transform: scale(0);
    transition: all 0.2s;
}

.checkbox-label input:checked + .checkbox-custom::after {
    opacity: 1;
    transform: scale(1);
}

.radio-label > span,
.checkbox-label > span {
    display: inline;
    flex-shrink: 1;
}

.radio-label input:checked ~ span:last-child,
.checkbox-label input:checked ~ span:last-child {
    color: var(--text-primary);
}

/* Conditional Sections */
.conditional-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    animation: fadeIn 0.3s ease;
}

.conditional-section.hidden {
    display: none;
}

/* Navigation Buttons */
.form-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-light));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(2, 112, 215, 0.3);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--accent-green), #00a383);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 191, 154, 0.3);
}

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

/* Results Section */
.results-section {
    animation: fadeIn 0.5s ease;
}

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

.results-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-green), #00a383);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.results-icon svg {
    stroke: white;
    stroke-width: 2;
    fill: none;
}

.results-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.results-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Results Score */
.results-score {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.score-display-large {
    margin-bottom: 1rem;
}

.score-number-large {
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-label-large {
    display: block;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 0.5rem;
}

.priority-badge-large {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.priority-badge-large.critical {
    background: rgba(220, 53, 69, 0.15);
    color: var(--accent-red);
}

.priority-badge-large.high {
    background: rgba(253, 126, 20, 0.15);
    color: var(--accent-orange);
}

.priority-badge-large.medium {
    background: rgba(255, 193, 7, 0.15);
    color: var(--accent-yellow);
}

.priority-badge-large.low {
    background: rgba(0, 191, 154, 0.15);
    color: var(--accent-green);
}

/* Results Recommendations */
.results-recommendations {
    margin-bottom: 2rem;
}

.results-recommendations h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.recommendation-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--border-color);
}

.recommendation-card.required {
    border-left-color: var(--accent-red);
}

.recommendation-card.recommended {
    border-left-color: var(--accent-blue);
}

.recommendation-card.optional {
    border-left-color: var(--accent-green);
}

.recommendation-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.recommendation-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
}

.recommendation-badge.required {
    background: rgba(220, 53, 69, 0.15);
    color: var(--accent-red);
}

.recommendation-badge.recommended {
    background: rgba(2, 112, 215, 0.15);
    color: var(--accent-blue);
}

.recommendation-category {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.recommendation-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.recommendation-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.recommendation-timeframe {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Results Scenario */
.results-scenario {
    background: linear-gradient(135deg, rgba(2, 112, 215, 0.1), rgba(0, 191, 154, 0.1));
    border: 1px solid var(--accent-blue);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.results-scenario h3 {
    color: var(--accent-blue);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.results-scenario h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.results-scenario p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.scenario-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.scenario-meta > div {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.75rem;
    border-radius: 6px;
}

.scenario-meta strong {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Results CTA */
.results-cta {
    text-align: center;
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.results-cta h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.results-cta p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.results-cta .btn {
    margin: 0 0.5rem;
}

/* Contact Confirmation */
.contact-confirmation {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1), rgba(40, 167, 69, 0.05));
    border: 1px solid rgba(40, 167, 69, 0.3);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.contact-confirmation .confirmation-icon {
    color: #28a745;
    margin-bottom: 1rem;
}

.contact-confirmation h3 {
    color: #28a745;
    margin-bottom: 0.75rem;
}

.contact-confirmation p {
    color: var(--text-primary);
    margin-bottom: 0;
    line-height: 1.7;
}

/* Footer */
.questionnaire-footer {
    background: var(--bg-medium);
    padding: 1.5rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.questionnaire-footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.questionnaire-footer a {
    color: var(--accent-blue);
    text-decoration: none;
}

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

/* Validation States */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--accent-red);
}

.form-group.error .error-message {
    color: var(--accent-red);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(21, 24, 29, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Print Styles */
@media print {
    .questionnaire-header,
    .progress-container,
    .form-navigation,
    .questionnaire-footer {
        display: none;
    }
    
    .results-section {
        padding: 0;
    }
    
    .results-cta .btn {
        display: none;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .questionnaire-header {
        padding: 1rem;
    }
    
    .questionnaire-header .header-title {
        display: none;
    }
    
    .progress-container {
        padding: 1rem;
    }
    
    .progress-steps {
        gap: 0.25rem;
    }
    
    .step-label {
        display: none;
    }
    
    .step-number {
        width: 28px;
        height: 28px;
        font-size: 0.75rem;
    }
    
    .questionnaire-main {
        padding: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stage-header h2 {
        font-size: 1.5rem;
    }
    
    .form-navigation {
        flex-direction: column-reverse;
        gap: 1rem;
    }
    
    .form-navigation .btn {
        width: 100%;
        justify-content: center;
    }
    
    .results-cta .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .scenario-meta {
        grid-template-columns: 1fr;
    }
}