:root {
    --bg-color: #0a0a0a;
    --text-color: #e0e0e0;
    --accent-color: #3498db;
    --input-bg: #1a1a1a;
    --border-color: #333;
    --hover-color: rgba(255, 255, 255, 0.1);
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --gradient-primary: linear-gradient(135deg, var(--accent-color), #2ecc71);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --card-bg: linear-gradient(145deg, #1c1c1c, #141414);
    --card-hover: linear-gradient(145deg, #1e1e1e, #161616);
}

/* Base styles */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Form styles */
.form-part {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-part:hover {
    background: rgba(255, 255, 255, 0.05);
}

.form-part h1 {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

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

.question h2 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
    font-weight: 600;
}

/* Input styles */
.options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.options label {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    background: linear-gradient(145deg, var(--input-bg), rgba(26, 26, 26, 0.8));
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.options label:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.options label::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.options label:hover::before {
    opacity: 0.05;
}

.options input[type="radio"],
.options input[type="checkbox"] {
    appearance: none;
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    margin-right: var(--spacing-md);
    position: relative;
    cursor: pointer;
    background: var(--input-bg);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.options input[type="radio"] {
    border-radius: 50%;
}

.options input[type="radio"]:checked,
.options input[type="checkbox"]:checked {
    border-color: var(--accent-color);
    background: var(--gradient-primary);
    box-shadow: 0 0 15px rgba(52, 152, 219, 0.3);
}

.options input[type="radio"]:checked::after,
.options input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    animation: check 0.3s ease forwards;
}

@keyframes check {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.options input[type="radio"]:checked::after {
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.options input[type="checkbox"]:checked::after {
    top: 40%;
    left: 50%;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -50%) rotate(45deg);
}

textarea {
    width: 75%;
    background: linear-gradient(145deg, var(--input-bg), rgba(26, 26, 26, 0.8));
    border: 2px solid var(--border-color);
    color: var(--text-color);
    margin-top: 3%;
    padding: var(--spacing-lg);
    min-height: 120px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 1rem;
    resize: vertical;
    box-shadow: var(--shadow-sm);
}

textarea:focus {
    border-color: transparent;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.3), var(--shadow-lg);
    background: linear-gradient(145deg, rgba(26, 26, 26, 0.95), var(--input-bg));
}

.inline-input{
    display: flex;
    align-items: center;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    background: linear-gradient(145deg, var(--input-bg), rgba(26, 26, 26, 0.8));
    margin-left: 3%;
    padding: 2%;
}

button {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
}

/* Header and Footer */
header {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
}

.logo h1 {
    font-size: 2.5rem;
    margin: 0;
    background: linear-gradient(45deg, var(--accent-color), #2ecc71);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: #666;
    margin: var(--spacing-sm) 0 0;
}

footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
}

.legal {
    color: #666;
    font-size: 0.9rem;
    text-align: center;
}

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

    .form-part {
        padding: var(--spacing-md);
    }

    .options {
        flex-direction: column;
    }
}

/* Choices styles */
.choices {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.choice {
    flex: 1 1 200px;
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.choice:hover {
    transform: translateY(-2px);
    border-color: var(--accent-color);
    background: var(--card-hover);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.choice input[type="radio"],
.choice input[type="checkbox"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    margin-right: 1rem;
    position: relative;
    flex-shrink: 0;
    transition: var(--transition);
}

.choice input[type="checkbox"] {
    border-radius: 4px;
}

.choice input[type="radio"]:checked,
.choice input[type="checkbox"]:checked {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.choice input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: white;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.choice input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}

@media (max-width: 768px) {
    .choices {
        flex-direction: column;
    }
    
    .choice {
        flex: 1;
    }
}

/* Thank You Page Styles */
.thank-you {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.thank-you h1 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.btn-return {
    display: inline-block;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-return:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
}