body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.register-container {
    max-width: 500px;
    margin: 30px auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.register-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.register-header {
    text-align: center;
    margin-bottom: 30px;
}

.register-header i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 15px;
}

.register-header h2 {
    color: #333;
    font-weight: 600;
    margin-bottom: 5px;
}

.register-header p {
    color: #666;
    font-size: 0.9rem;
}

.form-label {
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}

.form-label .required {
    color: #dc3545;
}

.form-control {
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    padding: 12px 15px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-control.is-valid {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.password-container {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: #667eea;
}

.btn-register {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 12px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.login-link {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e1e5e9;
}

.login-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.login-link a:hover {
    color: #764ba2;
    text-decoration: underline;
}

.alert {
    border: none;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
}

.alert-danger {
    background-color: #fee;
    color: #c33;
    border-left: 4px solid #c33;
}

.alert-success {
    background-color: #efe;
    color: #3c3;
    border-left: 4px solid #3c3;
}

.back-to-home {
    position: absolute;
    top: 20px;
    left: 20px;
}

.back-to-home a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.back-to-home a:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
}

.main-content {
    flex: 1;
}

.password-strength {
    margin-top: 5px;
    font-size: 0.8rem;
}

.strength-meter {
    height: 4px;
    background-color: #e1e5e9;
    border-radius: 2px;
    margin-top: 5px;
    overflow: hidden;
}

.strength-meter-fill {
    height: 100%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.weak {
    background-color: #dc3545;
    width: 33%;
}

.medium {
    background-color: #ffc107;
    width: 66%;
}

.strong {
    background-color: #28a745;
    width: 100%;
}

.row.g-3 .col-md-6 {
    padding-right: 8px;
    padding-left: 8px;
}