/*
 * Modern Blue Survey Theme - Main Styles
 * Version: 1.0.0
 *
 * Professional dark theme with cyan-blue accents
 * Based on client reference design with gradient background
 *
 * Structure:
 * 1. Base & Reset
 * 2. Typography & Fonts
 * 3. Layout & Containers
 * 4. Header & Branding
 * 5. Progress Bar
 * 6. Welcome & Introduction
 * 7. Product Cards & Question Containers
 * 8. Form Elements
 * 9. Buttons & Navigation
 * 10. Messages & Alerts
 * 11. Footer
 * 12. Utilities
 */

/* ==================== 1. BASE & RESET ==================== */

/* Import Google Font - Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* Scope all styles to theme class to avoid conflicts */
.survey_modern_blue {
    /* Apply font family */
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Body with custom background image - Override all vanilla styles */
html,
body,
html body,
.survey_modern_blue,
.survey_modern_blue html,
.survey_modern_blue body {
    background-image: url('../images/SurveyBackground.png') !important;
    background-color: transparent !important;
    background-size: 1600px auto !important;
    background-position: top center !important;
    background-attachment: scroll !important;
    background-repeat: repeat-y !important;
}

body,
.survey_modern_blue body {
    min-height: 100vh;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Ensure smooth scrolling */
.survey_modern_blue html {
    scroll-behavior: smooth;
}
/* Reset margins and padding */
.survey_modern_blue * {
    box-sizing: border-box;
}

/* ==================== 2. TYPOGRAPHY & FONTS ==================== */

/* Headings */
.survey_modern_blue h1,
.survey_modern_blue .h1 {
    font-family: var(--font-family-headings);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--corporate-primary);
    margin: 0 0 var(--spacing-6) 0;
    letter-spacing: var(--letter-spacing-tight);
}

.survey_modern_blue h2,
.survey_modern_blue .h2 {
    font-family: var(--font-family-headings);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-5) 0;
}

.survey_modern_blue h3,
.survey_modern_blue .h3 {
    font-family: var(--font-family-headings);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-snug);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-4) 0;
}

.survey_modern_blue h4,
.survey_modern_blue .h4 {
    font-family: var(--font-family-headings);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-snug);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-3) 0;
}

/* Paragraphs */
.survey_modern_blue p {
    margin: 0 0 var(--spacing-4) 0;
    color: var(--text-primary);
    line-height: var(--line-height-relaxed);
}

/* Links */
.survey_modern_blue a {
    color: var(--corporate-primary);
    text-decoration: none;
    transition: var(--transition-colors);
}

.survey_modern_blue a:hover {
    color: var(--corporate-primary-light);
    text-decoration: underline;
}

.survey_modern_blue a:focus {
    outline: 2px solid var(--corporate-primary);
    outline-offset: 2px;
}

/* Secondary text */
.survey_modern_blue .text-secondary,
.survey_modern_blue .survey-description {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
}

/* Muted text */
.survey_modern_blue .text-muted,
.survey_modern_blue .help-text {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ==================== 3. LAYOUT & CONTAINERS ==================== */

/* Main content wrapper */
.survey_modern_blue #wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Survey container */
.survey_modern_blue .container-fluid,
.survey_modern_blue .container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
    width: 100%;
}

/* Content area */
.survey_modern_blue #main-content {
    flex: 1;
    padding-top: var(--spacing-8);
    padding-bottom: var(--spacing-12);
}

/* Question containers with card style */
.survey_modern_blue .question-container,
.survey_modern_blue .group-container {
    background: var(--container-bg);
    backdrop-filter: var(--backdrop-blur-base);
    -webkit-backdrop-filter: var(--backdrop-blur-base);
    border-radius: var(--radius-lg);
    padding: var(--product-card-padding);
    margin-bottom: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color-base);
    transition: var(--transition-all);
}

.survey_modern_blue .question-container:hover {
    background: var(--container-bg-hover);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-color-medium);
}

/* ==================== 4. HEADER & BRANDING ==================== */

/* Survey header/navbar */
.survey_modern_blue #survey-nav,
.survey_modern_blue .navbar {
    background: transparent;
    border-bottom: 1px solid var(--border-color-base);
    padding-top: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    position: relative;
}

/* Logo / Brand text "UMFRAGE" */
.survey_modern_blue .navbar-brand,
.survey_modern_blue .logo-text {
    font-family: var(--font-family-headings);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--corporate-primary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    margin: 0;
    padding: 0;
}

.survey_modern_blue .navbar-brand img,
.survey_modern_blue .logo-img {
    max-height: 48px;
    width: auto;
}

/* ==================== 5. PROGRESS BAR ==================== */

/* Progress bar container - appears as blue line under header */
.survey_modern_blue .progress-container {
    width: 100%;
    height: var(--progress-height);
    background: var(--progress-bg);
    position: relative;
    margin-top: var(--spacing-4);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.survey_modern_blue .progress-bar,
.survey_modern_blue .progress-bar-fill {
    height: 100%;
    background: var(--progress-fill);
    background: linear-gradient(90deg, var(--corporate-primary-dark) 0%, var(--corporate-primary) 50%, var(--corporate-primary-light) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
    box-shadow: var(--glow-base);
    position: relative;
}

/* Progress bar glow effect */
.survey_modern_blue .progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.4) 100%);
}

/* Bootstrap progress bar styling */
.survey_modern_blue .ls-progress-bar {
    height: var(--progress-height);
    background: var(--progress-bg);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: var(--spacing-4) 0;
}

.survey_modern_blue .ls-progress-bar .progress-bar {
    background: linear-gradient(90deg, var(--corporate-primary-dark) 0%, var(--corporate-primary) 50%, var(--corporate-primary-light) 100%);
    box-shadow: var(--glow-base);
}

/* ==================== 6. WELCOME & INTRODUCTION ==================== */

/* Welcome page container */
.survey_modern_blue .welcome-container {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-6);
    margin: var(--spacing-8) auto;
    max-width: 900px;
}

/* Welcome title - "Willkommen zu unserer Umfrage" */
.survey_modern_blue .welcome-title,
.survey_modern_blue .survey-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--corporate-primary);
    margin-bottom: var(--spacing-6);
    line-height: var(--line-height-tight);
    text-shadow: var(--glow-sm);
}

/* Welcome subtitle */
.survey_modern_blue .welcome-subtitle {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-8);
    line-height: var(--line-height-relaxed);
}

/* Survey description */
.survey_modern_blue .survey-description {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

/* ==================== 7. PRODUCT CARDS & QUESTION CONTAINERS ==================== */

/* Product card layout - image left, content right */
.survey_modern_blue .product-card,
.survey_modern_blue .question-with-image {
    display: flex;
    gap: var(--product-card-gap);
    align-items: flex-start;
}

/* Product image */
.survey_modern_blue .product-image,
.survey_modern_blue .question-image {
    flex: 0 0 var(--product-image-width);
    max-width: var(--product-image-width);
    border-radius: var(--product-image-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.survey_modern_blue .product-image img,
.survey_modern_blue .question-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--product-image-radius);
    transition: var(--transition-transform);
}

.survey_modern_blue .product-image:hover img,
.survey_modern_blue .question-image:hover img {
    transform: scale(1.02);
}

/* Product content */
.survey_modern_blue .product-content,
.survey_modern_blue .question-content {
    flex: 1;
    min-width: 0;
}

/* Product description */
.survey_modern_blue .product-description {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

/* Product name */
.survey_modern_blue .product-name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: var(--spacing-6) 0 var(--spacing-4) 0;
}

/* Question text */
.survey_modern_blue .question-text,
.survey_modern_blue .question-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

/* Question code/number */
.survey_modern_blue .question-code {
    display: inline-block;
    color: var(--corporate-primary);
    font-weight: var(--font-weight-medium);
    margin-right: var(--spacing-2);
}

/* Mandatory indicator */
.survey_modern_blue .mandatory,
.survey_modern_blue .asterisk {
    color: var(--color-error);
    font-weight: var(--font-weight-bold);
    margin-left: var(--spacing-1);
}

/* Help text */
.survey_modern_blue .question-help,
.survey_modern_blue .help-block {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    margin-top: var(--spacing-3);
    font-style: italic;
}

/* ==================== 8. FORM ELEMENTS ==================== */

/* All input elements */
.survey_modern_blue input[type="text"],
.survey_modern_blue input[type="email"],
.survey_modern_blue input[type="number"],
.survey_modern_blue input[type="tel"],
.survey_modern_blue input[type="date"],
.survey_modern_blue input[type="time"],
.survey_modern_blue textarea,
.survey_modern_blue select,
.survey_modern_blue .form-control {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--input-radius);
    color: var(--input-text);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    padding: var(--input-padding-y) var(--input-padding-x);
    min-height: var(--input-height);
    width: 100%;
    transition: var(--transition-all);
    outline: none;
}

.survey_modern_blue input[type="text"]::placeholder,
.survey_modern_blue input[type="email"]::placeholder,
.survey_modern_blue textarea::placeholder {
    color: var(--input-placeholder);
}

/* Input hover state */
.survey_modern_blue input[type="text"]:hover,
.survey_modern_blue input[type="email"]:hover,
.survey_modern_blue input[type="number"]:hover,
.survey_modern_blue textarea:hover,
.survey_modern_blue select:hover,
.survey_modern_blue .form-control:hover {
    background: var(--input-bg-hover);
    border-color: var(--input-border-hover);
}

/* Input focus state */
.survey_modern_blue input[type="text"]:focus,
.survey_modern_blue input[type="email"]:focus,
.survey_modern_blue input[type="number"]:focus,
.survey_modern_blue textarea:focus,
.survey_modern_blue select:focus,
.survey_modern_blue .form-control:focus {
    background: var(--input-bg-focus);
    border-color: var(--input-border-focus);
    box-shadow: 0 0 0 3px rgba(6, 175, 255, 0.2);
}

/* Textarea */
.survey_modern_blue textarea,
.survey_modern_blue textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Select / Dropdown - "Auswählen..." style */
.survey_modern_blue select,
.survey_modern_blue .form-select {
    background: var(--dropdown-bg);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2306AFFF' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-4) center;
    background-size: 12px;
    padding-right: var(--spacing-10);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.survey_modern_blue select::-ms-expand {
    display: none;
}

/* Radio buttons and checkboxes */
.survey_modern_blue input[type="radio"],
.survey_modern_blue input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-3);
    cursor: pointer;
    accent-color: var(--corporate-primary);
}

/* Custom radio/checkbox styling */
.survey_modern_blue .radio-item,
.survey_modern_blue .checkbox-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-3);
    margin-bottom: var(--spacing-2);
    border-radius: var(--radius-base);
    transition: var(--transition-colors);
    cursor: pointer;
}

.survey_modern_blue .radio-item:hover,
.survey_modern_blue .checkbox-item:hover {
    background: rgba(6, 175, 255, 0.05);
}

.survey_modern_blue .radio-item label,
.survey_modern_blue .checkbox-item label {
    cursor: pointer;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
}

/* ==================== 9. BUTTONS & NAVIGATION ==================== */

/* Primary buttons */
.survey_modern_blue .btn,
.survey_modern_blue button,
.survey_modern_blue input[type="submit"],
.survey_modern_blue input[type="button"] {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--button-font-weight);
    padding: var(--button-padding-y) var(--button-padding-x);
    min-height: var(--button-height);
    border-radius: var(--button-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition-all);
    text-align: center;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    outline: none;
}

/* Primary button style */
.survey_modern_blue .btn-primary,
.survey_modern_blue .button-primary,
.survey_modern_blue input[type="submit"] {
    background: var(--button-primary-bg);
    color: var(--button-primary-text);
    border: 2px solid var(--button-primary-border);
    box-shadow: var(--shadow-base);
}

.survey_modern_blue .btn-primary:hover,
.survey_modern_blue .button-primary:hover,
.survey_modern_blue input[type="submit"]:hover {
    background: var(--button-primary-bg-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.survey_modern_blue .btn-primary:active,
.survey_modern_blue input[type="submit"]:active {
    background: var(--button-primary-bg-active);
    transform: translateY(0);
}

/* Secondary button style */
.survey_modern_blue .btn-secondary,
.survey_modern_blue .btn-outline {
    background: var(--button-secondary-bg);
    color: var(--button-secondary-text);
    border: 2px solid var(--button-secondary-border);
}

.survey_modern_blue .btn-secondary:hover,
.survey_modern_blue .btn-outline:hover {
    background: var(--button-secondary-bg-hover);
    box-shadow: var(--glow-sm);
}

.survey_modern_blue .btn-secondary:active {
    background: var(--button-secondary-bg-active);
}

/* Navigation buttons container */
.survey_modern_blue .navigation-buttons,
.survey_modern_blue .survey-navigation {
    display: flex;
    gap: var(--spacing-4);
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--border-color-base);
}

/* Move previous button to left, next to right */
.survey_modern_blue .btn-previous,
.survey_modern_blue .button-previous {
    margin-right: auto;
}

.survey_modern_blue .btn-next,
.survey_modern_blue .button-next {
    margin-left: auto;
}

/* Button focus state */
.survey_modern_blue .btn:focus,
.survey_modern_blue button:focus {
    box-shadow: 0 0 0 3px rgba(6, 175, 255, 0.3);
}

/* Disabled button state */
.survey_modern_blue .btn:disabled,
.survey_modern_blue button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ==================== 10. MESSAGES & ALERTS ==================== */

/* Alert base */
.survey_modern_blue .alert {
    padding: var(--spacing-4);
    border-radius: var(--radius-base);
    margin-bottom: var(--spacing-4);
    border: 1px solid;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

/* Success alert */
.survey_modern_blue .alert-success {
    background: rgba(0, 217, 163, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

/* Warning alert */
.survey_modern_blue .alert-warning {
    background: rgba(255, 167, 38, 0.1);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

/* Error alert */
.survey_modern_blue .alert-error,
.survey_modern_blue .alert-danger {
    background: rgba(255, 82, 82, 0.1);
    border-color: var(--color-error);
    color: var(--color-error);
}

/* Info alert */
.survey_modern_blue .alert-info {
    background: rgba(0, 184, 212, 0.1);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* Validation messages */
.survey_modern_blue .validation-error,
.survey_modern_blue .error-message {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-2);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

/* ==================== 11. FOOTER ==================== */

.survey_modern_blue .survey-footer,
.survey_modern_blue footer {
    margin-top: var(--spacing-12);
    padding: var(--spacing-8) 0;
    border-top: 1px solid var(--border-color-base);
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.survey_modern_blue .survey-footer a {
    color: var(--corporate-primary);
}

/* ==================== 12. UTILITIES ==================== */

/* Text alignment */
.survey_modern_blue .text-left { text-align: left; }
.survey_modern_blue .text-center { text-align: center; }
.survey_modern_blue .text-right { text-align: right; }

/* Display utilities */
.survey_modern_blue .d-none { display: none !important; }
.survey_modern_blue .d-block { display: block !important; }
.survey_modern_blue .d-flex { display: flex !important; }

/* Spacing utilities */
.survey_modern_blue .mb-0 { margin-bottom: 0 !important; }
.survey_modern_blue .mb-2 { margin-bottom: var(--spacing-2) !important; }
.survey_modern_blue .mb-4 { margin-bottom: var(--spacing-4) !important; }
.survey_modern_blue .mb-6 { margin-bottom: var(--spacing-6) !important; }
.survey_modern_blue .mb-8 { margin-bottom: var(--spacing-8) !important; }

.survey_modern_blue .mt-0 { margin-top: 0 !important; }
.survey_modern_blue .mt-2 { margin-top: var(--spacing-2) !important; }
.survey_modern_blue .mt-4 { margin-top: var(--spacing-4) !important; }
.survey_modern_blue .mt-6 { margin-top: var(--spacing-6) !important; }
.survey_modern_blue .mt-8 { margin-top: var(--spacing-8) !important; }

/* Loading spinner */
.survey_modern_blue .loading-spinner {
    border: 3px solid var(--border-color-base);
    border-top-color: var(--corporate-primary);
    border-radius: var(--radius-full);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

/* Fade in animation for questions */
.survey_modern_blue .question-container.animate-in {
    animation: fadeInUp 0.5s ease-out;
}

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

/* Smooth transitions for all interactive elements */
.survey_modern_blue *:focus-visible {
    outline: 2px solid var(--corporate-primary);
    outline-offset: 2px;
}