html, body {
    height: 100%;
}

body {
    margin: 0;
    padding: 10px 16px 32px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: linear-gradient(135deg, #f0f4ff, #d9e4ff);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.register-container {
    width: 100%;
    max-width: 700px;
    background: #ffffff;
    border-radius: 20px;
    padding: 40px 36px;
    box-shadow: 0 25px 60px rgba(80, 102, 144, 0.15);
}

.register-container h2 {
    font-weight: 700;
    color: #1c2d5a;
}

.form-label {
    font-weight: 600;
    color: #35476a;
}

.form-control {
    border-radius: 12px;
    padding: 12px 14px;
    border: 1px solid #d5dbea;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    border-color: #4f70ff;
    box-shadow: 0 0 0 3px rgba(79, 112, 255, 0.15);
}

.password-field {
    position: relative;
}

.password-field .toggle-password {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    padding: 4px;
    color: #7a81a8;
    font-size: 1.1rem;
    cursor: pointer;
}

.role-options {
    display: flex;
    gap: 12px;
    flex-direction: row;
}

.name-fields-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.role-option {
    position: relative;
    display: block;
    flex: 1;
}

.role-option input[type="radio"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.role-card {
    border: 1px solid #d5dbea;
    border-radius: 14px;
    padding: 14px 16px;
    background: #f7f9ff;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.role-option input[type="radio"]:checked + .role-card {
    border-color: #4f70ff;
    box-shadow: 0 10px 24px rgba(79, 112, 255, 0.18);
    background: #eef2ff;
}

.role-title {
    font-weight: 600;
    color: #1f2d4f;
}

.role-desc {
    font-size: 0.85rem;
    color: #5f6a92;
}

.form-check-label {
    font-size: 0.9rem;
    color: #5b6387;
}

.btn-create {
    width: 100%;
    background: linear-gradient(120deg, #4f70ff, #5fa9ff);
    border: none;
    border-radius: 999px;
    padding: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 15px 30px rgba(79, 112, 255, 0.25);
    transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.btn-create:hover {
    transform: translateY(-1px);
    box-shadow: 0 20px 32px rgba(79, 112, 255, 0.35);
}

.login-link {
    text-align: center;
    margin-top: 18px;
    color: #5b6387;
}

.login-link a {
    font-weight: 600;
    color: #4f70ff;
    text-decoration: none;
}

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

.text-danger.small {
    margin-top: 6px;
}

@media (max-width: 768px) {
    .register-container {
        max-width: 100%;
    }
    
    .name-fields-row {
        grid-template-columns: 1fr;
    }
    
    .role-options {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    body {
        padding: 24px 12px;
    }

    .register-container {
        padding: 32px 24px;
    }
}