:root {
    --primary-color: #1a365d; /* Dark Blue */
    --primary-hover: #2b6cb0;
    --secondary-color: #edf2f7;
    --text-color: #2d3748;
    --text-light: #718096;
    --border-color: #e2e8f0;
    --success-color: #48bb78;
    --bg-color: #f7fafc;
    --white: #ffffff;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 2rem 1rem;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

header {
    text-align: center;
    margin-bottom: 2.5rem;
}

header h1 {
    color: var(--primary-color);
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-light);
}

.wizard-progress {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2.5rem;
    position: relative;
}

.wizard-progress::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--border-color);
    transform: translateY(-50%);
    z-index: 1;
}

.progress-step {
    width: 40px;
    height: 40px;
    background: var(--white);
    border: 4px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-light);
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.progress-step.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.progress-step.completed {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
}

.form-step {
    display: none;
    animation: fadeIn 0.4s ease;
}

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

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

.form-step h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

input[type="text"],
input[type="email"],
input[type="date"],
input[type="tel"],
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.radio-group {
    display: flex;
    gap: 1.5rem;
    margin-top: 0.5rem;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
}

.radio-label input {
    margin-right: 0.5rem;
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

button:active {
    transform: translateY(1px);
}

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

button.btn-prev:hover {
    background-color: #e2e8f0;
}

button.btn-next, button.btn-submit {
    background-color: var(--primary-color);
    color: var(--white);
}

button.btn-next:hover, button.btn-submit:hover {
    background-color: var(--primary-hover);
}

.success-message, .error-message {
    text-align: center;
    padding: 2rem 0;
}

.success-message h2 { color: var(--success-color); margin-bottom: 1rem; }
.error-message h2 { color: #e53e3e; margin-bottom: 1rem; }
.btn {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
}