/* ============================================================================
   HDFT Staff Survey - Stylesheet
   ============================================================================ */

:root {
    --primary-color: #0078d4;
    --primary-dark: #005a9e;
    --primary-light: #e7f1fa;
    --success-color: #107c10;
    --error-color: #e74c3c;
    --warning-color: #f39c12;
    --text-color: #333;
    --text-light: #666;
    --border-color: #ddd;
    --bg-color: #f5f5f5;
    --white: #fff;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    --border-radius: 4px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* ============================================================================
   CONTAINER & LAYOUT
   ============================================================================ */

.container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.page {
    width: 100%;
    max-width: 800px;
    animation: fadeIn 0.3s ease-in;
}

.page.hidden {
    display: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================================
   CARD COMPONENT
   ============================================================================ */

.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: var(--spacing-xl);
    text-align: center;
}

.card-header h1 {
    font-size: 28px;
    margin-bottom: var(--spacing-sm);
}

.card-header .subtitle {
    font-size: 16px;
    opacity: 0.95;
}

.card > *:not(.card-header) {
    padding: var(--spacing-xl);
}

.success-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.error-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.success-icon, .error-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-md);
}

.success-icon {
    color: var(--success-color);
}

.error-icon {
    color: var(--error-color);
}

.success-card h1, .error-card h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.thank-you-message {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.thank-you-details {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   FORM COMPONENTS
   ============================================================================ */

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group input:invalid {
    border-color: var(--error-color);
}

.help-text {
    font-size: 12px;
    color: var(--text-light);
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover:not(:disabled) {
    transform: translateY(-2px);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

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

.btn.hidden {
    display: none;
}

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

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

.btn-secondary {
    background-color: var(--border-color);
    color: var(--text-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: #bbb;
}

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

.btn-success:hover:not(:disabled) {
    background-color: #0d5f0d;
}

.btn-large {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 16px;
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.form-actions .btn {
    flex: 1;
}

/* ============================================================================
   ALERTS
   ============================================================================ */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    font-size: 14px;
}

.alert.hidden {
    display: none;
}

.alert-error {
    background-color: #fde7e7;
    color: var(--error-color);
    border-left: 4px solid var(--error-color);
}

.alert-success {
    background-color: #e8f5e9;
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

/* ============================================================================
   SURVEY STYLES
   ============================================================================ */

.survey-header {
    background-color: var(--primary-light);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.survey-header-logos {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
}

.survey-kite-logo {
    height: 44px;
    width: auto;
}

.survey-trust-logo {
    height: 52px;
    width: auto;
    object-fit: contain;
}

.survey-header h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.survey-description {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: var(--spacing-md);
}

.answer-hint {
    font-size: 13px;
    color: var(--text-light);
    font-style: italic;
    margin: 2px 0 var(--spacing-sm);
}

.survey-container {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

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

.progress-text {
    font-size: 12px;
    color: var(--text-light);
    text-align: right;
}

.survey-container {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    overflow: visible !important;
    display: flex !important;
    flex-direction: column;
    min-height: auto;
    width: 100%;
}

.survey-form {
    width: 100%;
    display: block !important;
    overflow: visible !important;
}

.questions-container {
    padding: var(--spacing-lg);
    min-height: 200px;
    display: block !important;
    width: 100%;
    overflow: visible !important;
}

.question-group {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.question-group:last-child {
    border-bottom: none;
}

.question-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.question-number {
    color: var(--text-light);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.answer-container {
    display: block !important;
    width: 100%;
    overflow: visible !important;
    clear: both;
}

/* Likert Scale */
.likert-options {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: space-between;
}

.likert-options label {
    flex: 1;
    min-width: 80px;
}

.likert-options input[type="radio"] {
    display: none;
}

.likert-option {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    font-size: 12px;
}

.likert-options input[type="radio"]:checked + .likert-option {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.likert-options input[type="radio"]:hover + .likert-option {
    border-color: var(--primary-color);
}

/* Multiple Choice */
.checkbox-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.checkbox-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-option label {
    cursor: pointer;
    flex: 1;
}

/* Text Input */
.text-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 14px;
}

.text-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
}

/* Text Area */
.text-area {
    width: 100%;
    min-height: 120px;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
}

.text-area:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
}

/* ============================================================================
   HELP SECTION
   ============================================================================ */

.help-section {
    background-color: var(--primary-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-lg);
    border-left: 4px solid var(--primary-color);
}

.help-section p {
    margin: var(--spacing-sm) 0;
    color: var(--text-color);
}

.help-section p:first-child {
    margin-top: 0;
}

.help-section p:last-child {
    margin-bottom: 0;
}

.survey-info {
    padding: var(--spacing-lg);
    background-color: #f9f9f9;
    border-radius: var(--border-radius);
    font-size: 13px;
    color: var(--text-light);
    border-top: 1px solid var(--border-color);
}

/* ============================================================================
   LOADING
   ============================================================================ */

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--primary-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }

    .card-header {
        padding: var(--spacing-lg);
    }

    .card-header h1 {
        font-size: 24px;
    }

    .card > *:not(.card-header) {
        padding: var(--spacing-lg);
    }

    .likert-options {
        gap: var(--spacing-xs);
    }

    .likert-option {
        padding: var(--spacing-sm);
        font-size: 11px;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-sm);
    }

    .card-header {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .card-header h1 {
        font-size: 20px;
    }

    .card > *:not(.card-header) {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .btn {
        padding: var(--spacing-md) var(--spacing-md);
        font-size: 13px;
    }

    .question-group {
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
    body {
        background-color: var(--white);
    }

    .btn,
    .form-actions,
    .help-section,
    .loading {
        display: none;
    }
}