/* UHWX25 Step-by-Step Survey Styles */

:root {
    /* UHWX25 Brand Colors */
    --primary: #2C2A69; /* Main brand color */
    --primary-light: #636DB2; /* Light purple */
    --secondary: #6DC185; /* Brand green */
    --accent: #3BC4F1; /* Brand blue */
    
    /* Neutral Colors */
    --background: #F8FAFE;
    --surface: #FFFFFF;
    --text-primary: #262B3D;
    --text-secondary: #5A6B85;
    --border: #E1E7F0;
    --error: #EF4444;
    --success: #10B981;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Base Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--background) 0%, rgba(0, 102, 204, 0.05) 50%, rgba(0, 204, 102, 0.05) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    margin: 0;
    padding: var(--spacing-md);
}

/* Survey Container */
.survey-container {
    background: var(--surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    margin: var(--spacing-lg) 0;
    max-width: 100%;
    position: relative;
    overflow: hidden;
}

.survey-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
}

/* Header Section */
.header-section {
    border-bottom: 2px solid var(--border);
    padding-bottom: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-img {
    max-height: 80px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.main-heading {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sub-heading {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    text-align: center;
}

/* Progress Section */
.progress-section {
    margin-bottom: var(--spacing-2xl);
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 50%, var(--secondary) 100%);
    border-radius: var(--radius-md);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    width: 12.5%; /* 1/8 for first step */
}

.progress-text {
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* Question Steps */
.question-step {
    display: none;
    animation: fadeInUp 0.6s ease-out;
}

.question-step.active {
    display: block;
}

.question-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.question-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.question-icon i {
    font-size: 2rem;
    color: white;
}

.question-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.question-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Options Container */
.options-container {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.option-card {
    display: block;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.option-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s;
}

.option-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.option-card:hover::before {
    left: 100%;
}

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

.option-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.option-text {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
}

.option-check {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    margin-left: var(--spacing-md);
}

.option-check i {
    font-size: 0.875rem;
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* Selected State */
.option-card:has(input:checked) {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.05) 0%, rgba(0, 204, 102, 0.05) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.option-card:has(input:checked) .option-text {
    color: var(--primary);
    font-weight: 600;
}

.option-card:has(input:checked) .option-check {
    background: var(--primary);
    border-color: var(--primary);
}

.option-card:has(input:checked) .option-check i {
    opacity: 1;
}

/* Navigation Section */
.navigation-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--border);
}

.nav-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

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

.prev-btn:hover {
    background: var(--text-secondary);
    color: white;
    transform: translateX(-2px);
}

.next-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    margin-left: auto;
}

.next-btn:hover {
    transform: translateX(2px);
    box-shadow: var(--shadow-lg);
}

.submit-btn {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
    color: white;
    margin-left: auto;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Error Messages */
.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
    display: none;
    font-weight: 500;
    text-align: center;
    padding: var(--spacing-sm);
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.error-message.show {
    display: block;
    animation: shake 0.5s ease-in-out;
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.question-icon {
    animation: pulse 2s infinite;
}

/* Email Field Styling */
.email-field-container {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(60, 196, 241, 0.05), rgba(109, 193, 133, 0.05));
    border-radius: var(--radius-lg);
    border: 2px solid rgba(60, 196, 241, 0.2);
    transition: all 0.3s ease;
    display: block !important; /* Always show email field */
    opacity: 1 !important;
}

.email-field-container.show {
    animation: slideInUp 0.5s ease-out;
}

.form-label {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.form-label i {
    margin-right: var(--spacing-xs);
    color: var(--accent-green);
}

.email-input {
    padding: var(--spacing-md);
    border: 2px solid rgba(99, 109, 178, 0.3);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.email-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(60, 196, 241, 0.1);
    outline: none;
}

.form-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }
    
    .survey-container {
        padding: var(--spacing-lg);
        margin: var(--spacing-sm) 0;
        border-radius: var(--radius-xl);
    }
    
    .main-heading {
        font-size: 2rem;
    }
    
    .sub-heading {
        font-size: 1rem;
    }
    
    .question-icon {
        width: 60px;
        height: 60px;
        margin-bottom: var(--spacing-md);
    }
    
    .question-icon i {
        font-size: 1.5rem;
    }
    
    .question-title {
        font-size: 1.5rem;
    }
    
    .question-subtitle {
        font-size: 0.9rem;
    }
    
    .option-card {
        padding: var(--spacing-md);
    }
    
    .option-text {
        font-size: 1rem;
    }
    
    .nav-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
    }
    
    .navigation-section {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .next-btn, .submit-btn {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
    
    .logo-img {
        max-height: 60px;
    }
}

@media (max-width: 480px) {
    .survey-container {
        padding: var(--spacing-md);
    }
    
    .main-heading {
        font-size: 1.75rem;
    }
    
    .question-title {
        font-size: 1.25rem;
    }
    
    .option-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .option-text {
        font-size: 0.95rem;
    }
    
    .question-icon {
        width: 50px;
        height: 50px;
    }
    
    .question-icon i {
        font-size: 1.25rem;
    }
}

/* Loading States */
.btn-spinner {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.option-card:focus-within {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.nav-btn:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .survey-container {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .nav-btn {
        display: none;
    }
}