/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

header p {
    color: #7f8c8d;
}

/* Form Styles */
form {
    margin-top: 1.5rem;
}

.form-step {
    display: none;
}

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

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

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

input, select, textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border 0.3s;
}

input:focus, select:focus, textarea:focus {
    border-color: #3498db;
    outline: none;
}

.error-message {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: none;
}

/* Progress Bar */
.progress-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: #ddd;
    z-index: 1;
    transform: translateY(-50%);
}

.progress-step {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    position: relative;
    z-index: 2;
}

.progress-step.active {
    background: #3498db;
}

/* Buttons */
button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
}

.next-btn, .submit-btn {
    background: #3498db;
    color: white;
}

.next-btn:hover, .submit-btn:hover {
    background: #2980b9;
}

.prev-btn {
    background: #95a5a6;
    color: white;
    margin-right: 1rem;
}

.prev-btn:hover {
    background: #7f8c8d;
}

.form-navigation {
    display: flex;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Password Strength */
.password-strength {
    display: flex;
    align-items: center;
    margin-top: 0.5rem;
    gap: 0.5rem;
}

.strength-indicator {
    height: 5px;
    flex: 1;
    background: #ddd;
    border-radius: 5px;
}

#strength-text {
    font-size: 0.85rem;
    color: #7f8c8d;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group input {
    width: auto;
    margin-right: 0.5rem;
}

/* Login Link */
.login-link {
    text-align: center;
    margin-top: 2rem;
    color: #7f8c8d;
}

.login-link a {
    color: #3498db;
    text-decoration: none;
}

.login-link a:hover {
    text-decoration: underline;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 100;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    text-align: center;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #7f8c8d;
}

.success-icon {
    font-size: 4rem;
    color: #2ecc71;
    margin-bottom: 1rem;
}

.btn-primary {
    background: #3498db;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        margin: 1rem;
        padding: 1.5rem;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }
}